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Bibliography on: ALS (Amyotrophic Lateral Sclerosis) — Review Papers

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Robert J. Robbins is a biologist, an educator, a science administrator, a publisher, an information technologist, and an IT leader and manager who specializes in advancing biomedical knowledge and supporting education through the application of information technology. More About:  RJR | OUR TEAM | OUR SERVICES | THIS WEBSITE

RJR: Recommended Bibliography 24 Aug 2026 at 01:34 Created: 

ALS (Amyotrophic Lateral Sclerosis) — Review Papers

Amyotrophic lateral sclerosis (ALS), also known as motor neurone disease (MND) or Lou Gehrig's disease, is a neurodegenerative disease that results in the progressive loss of motor neurons that control voluntary muscles. ALS is the most common form of the motor neuron diseases. Early symptoms of ALS include stiff muscles, muscle twitches, and gradual increasing weakness and muscle wasting. Limb-onset ALS begins with weakness in the arms or legs, while bulbar-onset ALS begins with difficulty speaking or swallowing. Around half of people with ALS develop at least mild difficulties with thinking and behavior, and about 15% develop frontotemporal dementia. Motor neuron loss continues until the ability to eat, speak, move, and finally the ability to breathe is lost. Most cases of ALS (about 90% to 95%) have no known cause, and are known as sporadic ALS. However, both genetic and environmental factors are believed to be involved. The remaining 5% to 10% of cases have a genetic cause, often linked to a history of the disease in the family, and these are known as genetic ALS. About half of these genetic cases are due to disease-causing variants in one of two specific genes. The diagnosis is based on a person's signs and symptoms, with testing conducted to rule out other potential causes.

Tens of thousands of papers have been published on ALS. In this bibliography we restrict our attention to review papers.

Created with PubMed® Query: ( ( ALS*[TIAB] OR "amyotrophic lateral sclerosis"[TIAB] OR "motor neurone disease"[TIAB] ) AND review[SB] ) NOT pmcbook NOT ispreviousversion

Citations The Papers (from PubMed®)

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RevDate: 2026-08-23
CmpDate: 2026-08-23

Labrèche F, Prud'homme P, Gagnon M, et al (2026)

Occupational exposure to pesticides increases the risk of amyotrophic lateral sclerosis: a systematic review and meta-analysis.

Occupational and environmental medicine, 83(5):291-300 pii:oemed-2025-110662.

OBJECTIVE: To systematically review the evidence on the association between occupational exposure to pesticides and the risk of amyotrophic lateral sclerosis (ALS).

METHODS: A systematic search, conducted in eight bibliographic databases for publications between 1990 and 2025, identified observational studies estimating the risk of ALS after occupational pesticide exposure. Study quality was assessed using the WHO Risk of Bias (RoB) assessment instrument for systematic reviews, with the ROBINS-E (RoB in non-randomised studies of exposure) tool domains of bias. Pooled risk estimates were produced using random-effects models with restricted maximum likelihood, heterogeneity was assessed with I² statistics, and meta-regressions and publication bias explored with funnel plots and Egger's test.

RESULTS: Eight case-control studies (1734 cases) were retained for meta-analysis from 767 initially screened articles. 'Ever' occupational exposure to pesticides was associated with an increased risk of ALS (n=6 studies, pooled OR (pOR)=1.6; 95% CI 1.1, 2.2; I²=57%), for combined sexes. The risk for exposure to herbicides was slightly greater (pOR=1.7, I[2]=0.0%) than for exposure to insecticides or fungicides (pORs=1.6, I[2]=0.0%). Based on three studies, ever exposure to high levels of pesticides was associated with a higher risk (pOR=2.7; 95% CI=1.4, 5.0) than exposure to low levels (pOR=1.9; 95% CI=1.0, 3.7). Self-reported exposure assessment methods and older publication dates (<2015) were statistically significant predictors of the effect size.

CONCLUSION: Despite the small number of studies and some heterogeneity, our results add to the evidence suggesting that occupational exposure to pesticides may increase the risk of ALS.

RevDate: 2026-08-22
CmpDate: 2026-08-20

Saka AK, Godhwani K, Ramasamy V, et al (2026)

The use of deliberative dialogue in health services research: a scoping review.

Research involvement and engagement, 12(1):.

INTRODUCTION: Deliberative Dialogue (DD) is a structured participatory approach that brings together research evidence, professional expertise, and lived/living experience to support informed discussion and decision-making in health research. DD is increasingly used in the co-design, co-implementation, and co-evaluation of health-promoting interventions, where decisions must be both evidence-informed and responsive to local contexts, priorities, and needs. However, published studies vary considerably in how DD is described and reported, particularly in relation to facilitation, evidence use, participant preparation, power dynamics, and follow-up. This scoping review examined the application of DD in health services research, focusing on its methodological processes, reported outcomes and challenges, engagement of different interest-holders, and the rationales underlying its use.

METHODS: A scoping review was conducted following Arksey and O'Malley's framework and reported in accordance with PRISMA-ScR guidelines. Searches of OVID Medline, PsycINFO, PubMed, CINAHL, and Scopus identified 1,793 records. After screening and consolidating duplicate reports, 15 unique studies met the inclusion criteria. Data were extracted using a template informed by the Guidance for Reporting Involvement of Patients and the Public (GRIPP2), the Consolidated Standards of Reporting Trials (CONSORT), and Boyko et al.'s model of DD. The review was conducted using a critical Patient-Oriented Research (cPOR) approach, which centres lived/living experience, promotes shared decision-making between patient partners and researchers, and attends to the influence of power and structural contexts on knowledge production. The interdisciplinary team, including patient partners, researchers, clinicians, policymakers, and decision-makers, co-developed the study, contributed to data interpretation, and collaboratively refined the findings through iterative and reflexive discussion.

FINDINGS: The 15 included studies were published between 2012 and 2024 and represented diverse geographic and health-system contexts. DD was used to support intervention co-design, implementation planning, evaluation, priority-setting, guideline development, and service improvement. Studies consistently reported the involvement of multiple interest-holder groups and the development of practical outputs, including curricula, decision aids, care models, action plans, guidelines, and priority-setting frameworks. However, reporting of methodological processes was inconsistent. Only a minority of studies described facilitation protocols, participant preparation, strategies to address power dynamics, accessibility supports, or follow-up activities. While DD was associated with enhanced trust, mutual understanding, contextual relevance, and collaborative decision-making, evidence of longer-term impacts was limited. The synthesis also revealed substantial variation in how studies reported participant engagement, evidence use, consensus-building processes, and the translation of deliberative outputs into intervention-related decisions.

This review highlights DD as a valuable approach for collaborative, evidence-informed, and context-sensitive health services research. Across the included studies, DD was used to bring together diverse forms of knowledge and generate practical outputs to support intervention development and improvement. However, methodological details related to facilitation, accessibility, participant support, management of power dynamics, decision-making processes, and longer-term impacts were often underreported. These gaps point to the need for more transparent and equity-oriented reporting of DD, particularly in relation to how people with lived/living experience are engaged and how their contributions influence intervention-related decisions. Strengthening reporting in these areas may improve the transparency, reproducibility, and accountability of DD in the co-design, co-implementation, and co-evaluation of health interventions.

RevDate: 2026-08-22
CmpDate: 2026-08-20

Shrestha N, Munn Z, Calma A, et al (2026)

Gold Coast criteria for ALS diagnosis: individual participant data meta-analysis.

Journal of neurology, 273(9):.

BACKGROUND: To evaluate the diagnostic accuracy of the Gold Coast criteria (GCC) and compare their performance with the revised El Escorial (rEEC) and Awaji criteria in patients with suspected amyotrophic lateral sclerosis (ALS).

METHODS: Embase, MEDLINE, and Scopus were searched for English-language studies published between January 1, 2020, and August 11, 2025. Eligible studies assessed the diagnostic accuracy of GCC compared with rEEC and Awaji criteria in suspected ALS. Authors were invited to contribute individual participant data. Data were checked, harmonised, and recoded. A one-stage individual-participant data meta-analysis, adjusted for age and sex, was performed. Diagnostic performance was assessed using pooled sensitivity, specificity, and area under the receiver operating characteristic curve. Risk of bias was assessed using QUADAS-2 and QUADAS-C, and certainty of evidence using GRADE for diagnostic test accuracy. The study was registered with PROSPERO, CRD420251123597.

RESULTS: Individual participant data were available for 3007 participants from five international studies. GCC demonstrated higher sensitivity than rEEC and Awaji criteria: 0.96 (95% confidence interval [CI] 0.93-0.98) versus 0.87 (95% CI 0.78-0.92) and 0.87 (95% CI 0.78-0.93), respectively. Certainty of evidence for sensitivity was moderate at pre-test probabilities of 50% and 75%, and low at 25%. Specificity was numerically lower for GCC at 0.68 (95% CI 0.53-0.81) compared with rEEC at 0.73 (95% CI 0.59-0.83) and the Awaji criteria at 0.72 (95% CI 0.57-0.83). The certainty of evidence for specificity was rated as very low across all assessed pre-test probabilities (25%, 50%, and 75%).

CONCLUSIONS: GCC provide a sensitive framework for suspected ALS and may support earlier diagnosis in specialist settings. Specificity was imprecise and heterogeneous, supporting use with mimic exclusion and longitudinal reassessment.

RevDate: 2026-08-21
CmpDate: 2026-08-21

Hui LM, Yu E, Chung A, et al (2026)

Artificial intelligence for assessment in competency-based medical education: current practices and future directions.

Postgraduate medical journal, 102(1211):806-816.

BACKGROUND: Competency-Based Medical Education (CBME) relies on frequent, competency-focused assessments, which can be challenging to implement consistently. Artificial Intelligence (AI) holds promise to improve assessment efficiency, objectivity, and feedback in CBME, but its use remains in early stages with limited understanding of current practices and evaluation methods. This study aims to map existing AI applications in CBME assessments to guide future work.

METHODS: A comprehensive search was performed in MEDLINE (Ovid), EMBASE (Ovid), PsycINFO, and Scopus using tailored keywords and MeSH terms. Included studies focused on the deployment of AI for assessment within CBME, covering applications in generating, analyzing, or interpreting evaluation data across undergraduate, graduate, and continuing professional education. The PRISMA-ScR guidelines were used to ensure transparent reporting, and findings were synthesized following Levac et al.'s approach.

RESULTS: Of the 1002 search results, 32 studies met the inclusion criteria. Key findings indicate a wide application of AI from surgical or procedural skill assessment, to clinical note assessment, communication assessment, feedback generation, projected trainee performance, and analysis of narrative feedback from supervisors.

CONCLUSION: This review highlights potential advantages, such as timely evaluations, and challenges, such as lack of granularity, of AI integration. In conclusion, thoughtful integration of AI into competency-based medical education can complement traditional assessment methods and enhance learner outcomes, provided it is supported by robust infrastructure, ethical oversight, and collaborative policy development.

RevDate: 2026-08-20
CmpDate: 2026-08-19

Sheppard B, Durnell L, AJ Haufler (2026)

From emergence to amplification: an analysis of lifecycle models to address health mis-disinformation in the digital environment.

Frontiers in medicine, 13:1814102.

Health misinformation and disinformation (mis-disinformation) on social media presents a growing threat to individual and population health, societal resilience, and national security. While social media enables the rapid dissemination of health information, it also facilitates the spread of health mis-disinformation, a challenge further compounded by foreign influence campaigns, AI-generated content, and divergent regulatory environments. Effective interventions require tailoring to local socio-cultural and geo-political contexts. This article proposes a lifecycle model for health professionals that conceptualizes how content creation, dissemination, exposure, belief formation, and behavioral outcomes interact and can be targeted through strategic interventions to improve health outcomes and mitigate adverse behavioral effects. To achieve this, the article characterizes the challenges posed by the current and emerging health information environment; identifies and evaluates mis-disinformation lifecycle models in order to strengthen the existing knowledge base; and assesses the current state of knowledge and gaps on comparing intervention strategies to elicit desired behavioral responses, with an emphasis on individual approaches (e.g., debunking, media literacy, fact checking). A review of literature (2020-2025) identified 13 cross-comparative intervention studies which focused on key findings. Four lifecycle models were identified and assessed against six criteria derived from the lifecycle literature to identify the most suitable framework for adaptation in the public health domain. Kruijver et al.'s C5 Interaction Model emerged as the framework that satisfied the greatest number of criteria and was selected for adaptation. The model was extended to account for diverse socio-political and information environments, emerging technological interventions, and the distinct challenges posed by both mis-disinformation. Adaptation involved integrating concepts from risk perception, the Social Amplification of Risk Framework, and Social Judgment Theory, alongside health-specific examples to enhance relevance and practical applicability. To help translate the insights gained to strategy, we also convey the information in an Integrated Framework for Managing Health Mis-disinformation. By linking the evolution of health mis-disinformation to targeted interventions, the model and framework provide a foundation for promoting healthier behaviors and mitigating the adverse effects of misleading health information across diverse socio-demographic and cultural settings to improve health outcomes.

RevDate: 2026-08-19

Tang WX, Yang C, Zhang M, et al (2026)

Sleep-wake control with age and neurodegenerative diseases.

Sleep medicine reviews, 90:102352 pii:S1087-0792(26)00124-3 [Epub ahead of print].

Aging causes dramatic alterations in bodily functions. Among them, sleep quality declines with age, particularly in individuals with neurodegenerative diseases. In this review, we first describe alterations in sleep-wake architecture and discuss potential mechanisms underlying sleep disorders that arise with age. We discuss evidence linking sleep disorders with neurodegenerative diseases such as Alzheimer's disease (AD), Parkinson's disease (PD), progressive supranuclear palsy (PSP), Huntington's disease (HD), and amyotrophic lateral sclerosis (ALS) syndrome. Even though the causes of AD, PD, PSP, and HD are diverse, several shared symptoms including difficulty falling asleep, fragmented sleep, and disrupted circadian rhythm collectively suggest their pathologies disrupt sleep-wake control. Hyperexcitability of implicated neurons is commonly observed prior to neurodegeneration. Upregulated neuronal excitability in the early phase of these diseases appears as a potential shared mechanism among neurodegenerative diseases. Abnormal protein accumulation and aggregation in these diseases exacerbate neuronal circuit hyperactivity by increasing neurons' intrinsic excitability or dampening inhibitory inputs to neurons controlling sleep-wake cycles. A better understanding of the mechanisms underlying sleep disorders that emerge with age may greatly benefit the development of novel preventative and therapeutic strategies for neurodegenerative diseases, and therefore improve the life quality of older adults.

RevDate: 2026-08-18

Li J, Duan H, Hao P, et al (2026)

Regenerative medicine for neurodegenerative diseases:History, Strategies, and Clinical Advances.

Translational research : the journal of laboratory and clinical medicine pii:S1931-5244(26)00171-4 [Epub ahead of print].

In the context of global ageing, the prevalence of neurodegenerative diseases (NDDs), such as Alzheimer's disease (AD), Parkinson's disease (PD), and amyotrophic lateral sclerosis (ALS), is rapidly increasing. However, current symptomatic treatments have achieved limited benefits in clinical settings and fundamentally fail to reverse the progressive loss of specific neuronal populations. Halting neurodegeneration and restoring impaired cognitive, motor or visual functions through nerve regeneration and circuit reconstruction represent the clinically meaningful goals for treatments of NDDs. Regenerative medicine has emerged as a promising paradigm to address this unmet need. In this review, we trace the historical evolution of regenerative therapies for NDDs - from early exploratory cell transplantation to modern approaches involving pluripotent stem cells (PSCs) and in vivo direct reprogramming. Furthermore, we elucidate the core strategies of regenerative medicine within an integrated framework encompassing "Replacement", "Regeneration", and "Rejuvenation". Finally, we highlight recent advances in clinical research, particularly milestone trials in cell replacement therapy for PD, as well as the application of mesenchymal stem cells (MSCs) in AD and ALS.

RevDate: 2026-08-18
CmpDate: 2026-08-18

Valverde A, Blasco H, Corcia P, et al (2026)

Exploring the effect of red and near-infrared light on neurodegenerative disease: A focus on amyotrophic lateral sclerosis, Charcot's devastating disease of the motor system.

International review of neurobiology, 189:205-236.

All neurodegenerative diseases, from Alzheimer's disease to amyotrophic lateral sclerosis (ALS), are characterised by a relentless and progressive degeneration of neurones. The degenerating neurones suffer from mitochondrial dysfunction, glutamate excitotoxicity, metabolic disorder and atypical protein aggregations; there is also widespread neuroinflammation and damage to the neurovascular unit across the nervous system. Unfortunately, there is no current treatment option that addresses all, if not many, of these striking abnormalities, one that stops or even slows the progression of the disease (ie neuroprotective). In this chapter, we explore the potential effectiveness of red and near infrared light (R-NIr) on ALS, one of the most devastating of all the neurodegenerative diseases. This condition impacts the motor system, from the cerebral cortex and brainstem to the spinal cord, as well as many skeletal muscles. Individuals suffer greatly and the survival period after onset of the first signs is often very short, averaging just over 2 years, as against 4-8 years in dementia. We outline two main reasons why R-NIr may have positive outcomes in ALS; (1) R-NIr has been shown to be neuroprotective in many other neurodegenerative diseases, improving cell function and survival, and; (2) unlike many other treatments attempted previously, R-NIr addresses many, if not all features of pathology associated with ALS. In summary, we suggest that R-NIr, with its multi-modal effect, could be a valuable treatment option for patients with ALS, particularly if the treatment is started early, before the development of excessive cellular damage.

RevDate: 2026-08-19
CmpDate: 2026-08-19

Jamali MC, Shafie A, Alqahtani AJ, et al (2026)

Advances in the clinical application of mesenchymal stem cells for neurological disorders.

Stem cell research & therapy, 17(1):.

Therapeutic approaches employing mesenchymal stem cells (MSCs) have emerged as a promising avenue for investigating treatments for neurological disorders. This strategy aims to capitalize on the biological properties of MSCs to support the repair of damaged neural tissue and modulate pathological processes. This review provides a comprehensive overview of the current clinical evidence regarding MSC applications in major neurological disorders, including Parkinson's disease (PD), Alzheimer's disease (AD), amyotrophic lateral sclerosis (ALS), multiple sclerosis (MS), stroke, spinal cord injury (SCI), and other pertinent disorders. Across clinical studies, MSC administration has generally demonstrated a favorable safety profile and procedural feasibility. However, therapeutic efficacy remains variable and inconsistent across trials. Importantly, differences in MSC sources, manufacturing procedures, delivery routes, dosing strategies, and patient selection contribute substantially to the heterogeneity of reported outcomes. Therefore, the current body of evidence supports the safety of MSC-based interventions, but their clinical effectiveness has not yet been consistently demonstrated. Future progress will depend largely on the standardization of cell preparation and treatment protocols, improved biomarker-driven patient stratification, and rigorously designed large-scale randomized trials.

RevDate: 2026-08-19
CmpDate: 2026-08-19

Wang JDJ, Teo AYT, Xiao B, et al (2026)

PCSK9 inhibitors in neurodegenerative disorders: mechanisms, therapeutic potential, and clinical implications.

Translational neurodegeneration, 15(1):.

Proprotein convertase subtilisin/kexin type 9 (PCSK9) plays a role in hepatic cholesterol metabolism via low density lipoprotein receptor degradation. PCSK9 inhibitors have revolutionized lipid-lowering therapy, providing robust reduction of cardiovascular risk. Large-scale randomized controlled trials and long-term extensions (e.g., FOURIER and EBBINGHAUS trials) have shown no significant adverse effects of PCSK9 inhibitors on neuropsychological testing or patient-reported cognitive outcomes, even with prolonged and intensive lowering of low-density lipoproteins. Pre-clinical studies also suggest PCSK9 as a key regulator of neurobiological processes, including synaptic plasticity, amyloid-beta clearance, neuroinflammation, and blood-brain barrier integrity. Human genetic studies revealed complex, sometimes conflicting associations between PCSK9 variants and risk of Alzheimer's disease, Parkinson's disease, vascular dementia, and amyotrophic lateral sclerosis. In this review, we highlight the pathophysiologic mechanisms, emerging experimental therapeutics and clinical implications of PCSK9 inhibition in neurodegenerative disorders. Long-term adequately powered trials with robust neuropsychological, biomarker, and imaging endpoints, as well as mechanistic studies in human-derived models are needed to establish the cardiovascular and neurocognitive implications of PCSK9 inhibition and guide precision medicine strategies for those at elevated risk of neurodegeneration.

RevDate: 2026-08-19
CmpDate: 2026-08-19

Wu T, Yuan L, Sasaki Y, et al (2026)

SARM1 executes neuronal parthanatos and promotes excitotoxic cell death.

Neuron, 114(16):2975-2986.e5.

The nicotinamide adenine dinucleotide (NAD[+]) hydrolase sterile alpha and Toll/interleukin-1 receptor motif-containing 1 (SARM1) is the central executioner of pathological axon degeneration and is allosterically activated by an increased nicotinamide mononucleotide (NMN)/NAD[+] ratio. DNA damage induces NAD[+] loss and an increased NMN/NAD[+] ratio by hyperactivating poly(ADP-ribose) polymerase 1 (PARP1), which triggers the parthanatos cell death pathway. Multiple mechanistically distinct DNA-damaging agents activate SARM1 and induce axon degeneration following PARP1 activation. Remarkably, SARM1 is required for key steps downstream of hyperactivated PARP1, which are pathognomonic of parthanatos, including mitochondrial depolarization, nuclear translocation of apoptosis-inducing factor (AIF), and cell death. Hence, SARM1 is an essential component of neuronal parthanatos. Moreover, complex neurodegenerative stimuli whose mechanisms include activation of parthanatos, such as 1-methyl-4-phenyl-pyridinium (MPP[+]) dopaminergic neuron toxicity and N-methyl-D-aspartate (NMDA) excitotoxicity, are potently protected by SARM1 inhibition. These findings place SARM1 at the nexus of multiple mechanisms driving neuronal cell death, thereby greatly expanding the potential clinical utility of SARM1 inhibitors beyond diseases of axon loss.

RevDate: 2026-08-19
CmpDate: 2026-08-19

Etik DÖ, Dişibeyaz S, EH Özmert (2026)

Pancreatitis due to afferent loop syndrome: A case report and a brief review of the literature.

Arab journal of gastroenterology : the official publication of the Pan-Arab Association of Gastroenterology, 27(3):438-442.

Afferent loop syndrome (ALS) should be a part of the differential diagnosis in a patient with acute pancreatitis with a history of gastric surgery. Although it is a rare clinical entity, association of ALS with acute pancreatitis can lead to poor clinical outcomes. Herein, we report the case of a 41-year-old man with a history of subtotal gastrectomy and Roux-en-Y gastric bypass who presented with abdominal pain and tenderness. Treatment of choice in this case was purely medical. A brief review of similar cases in the literature highlights the wide array of etiologies of acute pancreatitis due to ALS and reveals a broad spectrum of treatment options from medical to surgical.

RevDate: 2026-08-19
CmpDate: 2026-08-17

Raghunathan T, Parthasarathy B, Prabhu P, et al (2026)

Regenerative strategies for ALS: stem cells and extracellular vesicles.

Discover nano, 21(1):.

Amyotrophic Lateral Sclerosis (ALS) is caused by progressive degeneration of upper and lower motor neurons. The disease is late onset, and to date, no early diagnosis is possible. Patients with ALS have a 5-year survival rate since diagnosis. Though recent studies highlighted the possible mechanisms of motor neuron degeneration in ALS, the treatment options are extremely limited. This underscores the urgent need to develop effective therapeutic strategies that can prolong patient survival and ultimately slow/halt ALS progression. Extracellular vesicles released from the degenerative milieu contribute to ALS propagation and progression by shuttling misfolded proteins, proinflammatory cytokines, and neurotoxins; thus, they could serve as a biomarker for diagnosis and prognosis. The advancement of stem cell-based therapies for neurodegenerative diseases and the evolving understanding of extracellular vesicles as potential biotherapeutics provide a ray of hope for millions of patients suffering from neurological disorders/neurodegenerative diseases like ALS.

RevDate: 2026-08-18
CmpDate: 2026-08-18

Wedgwood HE, Tuxworth RI, Z Ahmed (2026)

Exploring Genetic Therapies Targeting Amyotrophic Lateral Sclerosis in Animal Models: A Systematic Review and Meta-Analysis.

The journal of gene medicine, 28(8):e70106.

BACKGROUND: Amyotrophic lateral sclerosis (ALS) is a rare, neurodegenerative disease, for which there is currently no known cure. ALS primarily affects motor neurons, with rapid deterioration, meaning symptoms develop quickly, from problems with speech and muscle weakness to breathing issues and paralysis. This systematic review aimed to explore the preclinical efficacy of various genetic therapies used to target ALS using in vivo rodent models.

METHODS: In vivo studies of genetic therapies targeting ALS and its symptoms published between January 2015 and December 2025 were included in this review. The following databases were used: Web of Science, Scopus and PubMed. The primary outcome investigated was the total number of motor neurons, with secondary outcomes of rodent survival and muscle function by observing rotarod performance also being analysed. The SYRCLE tool was used to assess risk of bias in included studies.

RESULTS: Of the 451 studies identified by searching the databases, 53 studies were found to be eligible for this systematic review. The articles were divided into subcategories depending on the gene target of each therapy. Meta-analysis of outcomes within appropriate studies showed significant improvements for the majority of selected outcomes (p < 0.05), favouring genetic therapy intervention.

CONCLUSIONS: Results suggest that genetic therapies in rodent models targeting ALS are effective. However, due to a high risk of bias in preclinical studies, further high-quality studies are warranted to support this conclusion and onward translation into the clinic.

RevDate: 2026-08-19
CmpDate: 2026-08-18

Li T, Zhang Q, Wu Y, et al (2026)

Cell Death in Neurodegenerative Diseases: Molecular Mechanisms and Therapeutic Targets.

MedComm, 7(9):e70915.

Neurodegenerative diseases (NDs) are marked by selective neuronal vulnerability and progressive failure of neural circuits. Increasing evidence indicates that neuronal loss is not driven by a single terminal event, but emerges from interacting regulated cell death (RCD) programs. These programs are closely coupled to mitochondrial injury, proteostatic collapse, lysosomal stress, metabolic imbalance, glial state transitions, and chronic neuroinflammation. Yet, how distinct death pathways are organized across cell types, disease stages, and disease-specific microenvironments remains unresolved. This review examines RCD as an integrated pathogenic network in major NDs. Caspase and B-cell lymphoma 2 (BCL2) family signaling, receptor-interacting protein kinase 1 (RIPK1), RIPK3, and mixed lineage kinase domain-like protein activation, NOD-like receptor family pyrin domain containing 3 and gasdermin signaling, GPX4-linked lipid peroxidation control, and autophagy lysosomal failure are discussed as convergent stress response modules rather than isolated pathways. Across Alzheimer's disease, Parkinson's disease, amyotrophic lateral sclerosis, and Huntington's disease, these modules shape neuronal fate through disease-specific interactions with mitochondrial dysfunction, iron dyshomeostasis, inflammasome activation, and microglial metabolic remodeling. We further evaluate emerging therapeutic strategies that target cell death crosstalk, restore autophagy lysosomal competence, or improve delivery to the central nervous system, highlighting the importance of molecular selectivity, cellular context, disease stage, and translational feasibility.

RevDate: 2026-08-18
CmpDate: 2026-08-18

Lv C, Zhu W, Wen X, et al (2026)

Spatiotemporal Dynamics and Cellular States of Neuroinflammation in Amyotrophic Lateral Sclerosis: Implications for Stage‑Specific Therapeutics.

ASN neuro, 18(1):2715625.

Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disease with a complex and heterogeneous pathogenesis. Accumulating preclinical and clinical evidence indicates that neuroinflammation is an important modulator of ALS pathophysiology, involving activation of resident central nervous system immune cells, dysfunction of glial support systems, disruption of neurovascular barriers, and altered recruitment of peripheral immune cells. ALS-associated neuroinflammation is temporally dynamic and varies across anatomical compartments and cellular contexts. Multiple animal models, human neuroimaging, and post-mortem tissue suggest that relatively regulated or compensatory immune responses during early stage may progressively shift to persistent, maladaptive, and potentially neurotoxic inflammatory circuits in later stage. Although previous studies have described stage-dependent changes in individual immune cell populations, an integrated stage-dependent systematic framework that unifies dynamic alterations in both central and peripheral immune compartments remains insufficiently established. In this review, we propose a four-phase conceptual framework for ALS neuroinflammation across the progressive ALS pathogenesis, aiming to provide theoretical guidance for staging inflammatory therapeutic interventions.

RevDate: 2026-08-15
CmpDate: 2026-08-14

Tan Q, Ma Y, Zhao J, et al (2026)

Mapping artificial intelligence in problem-based and case-based medical education: a bibliometric analysis (2019-2026).

Frontiers in medicine, 13:1901004.

INTRODUCTION: Problem-based learning (PBL) has been a cornerstone of medical education since its introduction at McMaster University in the 1960s. Since the public release of ChatGPT in November 2022, artificial intelligence (AI) tools have increasingly been applied to PBL and case-based learning (CBL) contexts, yet the research landscape at this intersection remains poorly characterized. This study aimed to map the growth trajectory, thematic structure, and collaboration networks of AI-PBL/CBL research from 2019 to 2026.

METHODS: A comprehensive search of Scopus and Web of Science was conducted on June 2, 2026, combining AI-related terms with PBL/CBL frameworks and medical education contexts. Using a PRISMA-guided bibliometric review workflow, 1,616 records were identified; after deduplication and eligibility screening, 735 unique publications (2019-2026, original articles, reviews, conference papers, and other eligible indexed document types) were included. Bibliometric analyses employed VOSviewer for network visualization (keyword co-occurrence, co-authorship, co-citation), CiteSpace for citation burst detection, and Bibliometrix for thematic mapping, three-field plot, and factorial analysis.

RESULTS: Publication output grew from 25 papers in 2022 to 254 in 2025, with 206 papers indexed by June 2, 2026. The United States (n = 70) and China (n = 64) led publication volume. Keyword co-occurrence analysis identified four thematic clusters: a central AI-focused cluster, a medical education and clinical reasoning cluster, a nursing and simulation-oriented cluster, and an educational technology cluster. Kung et al.'s 2023 study evaluating ChatGPT's performance on the USMLE was the most frequently co-cited reference (62 co-citations, betweenness centrality = 0.11). Thematic mapping positioned machine learning as a motor theme, while clinical reasoning, medical education, and self-directed learning appeared in the basic themes quadrant. The country/region collaboration network comprised 33 countries/regions and was led by the United States and China, although collaboration patterns remained uneven across regions.

CONCLUSION: To our knowledge, this is the first bibliometric study specifically focused on the intersection of AI technologies with PBL/CBL in health professions education. The findings reveal rapid growth after 2023, four distinct but interconnected research clusters, and a collaboration network led by the United States and China, with uneven regional participation. These results may inform curriculum design and research priorities in AI-enhanced medical education.

RevDate: 2026-08-15
CmpDate: 2026-08-14

van de Zande NA, Ruiter CCC, Polman MA, et al (2026)

Tracing neuroinflammation in neurodegeneration: insights from a scoping review on biofluid biomarkers.

Brain communications, 8(4):fcag289.

Neuroinflammation is increasingly recognized as a key pathological process in neurodegenerative disease and can be monitored using biofluid biomarkers. Objective biomarkers may aid diagnosis, prognosis and progression. We conducted a scoping review of neuroinflammation biomarkers across major neurodegenerative diseases covering the past 23 years, including Alzheimer's disease, Parkinson's disease, amyotrophic lateral sclerosis, frontotemporal dementia, Huntington's disease, Lewy body dementia, multiple system atrophy and progressive supranuclear palsy. PubMed and Web of Science were systematically searched for observational studies from 2003 to 2025 reporting neuroinflammation biomarkers in adult human subjects. Included markers encompassed blood, cerebrospinal fluid, saliva and urine, providing possible complementary information. Original studies on non-neuroinflammatory mechanisms, cellular or post-mortem biomarkers, animal models, genetics and comparisons between diseases were excluded. Two reviewers independently screened articles; biomarkers reported in ≥3 independent cohorts per disease were analysed. A total of 388 studies were included, predominantly in Alzheimer's disease/mild cognitive impairment (n = 214) and Parkinson's disease (n = 92). Eight biomarkers were most frequently reported: IL-6, TNF-α, IL-1β, CRP/hs-CRP, IL-10, MCP-1, YKL-40 and neutrophil-to-lymphocyte ratio (NLR), measured in blood or cerebrospinal fluid (CSF) as indicators of inflammatory processes associated with neurodegeneration. Across biomarkers, the strength and scope of evidence varied. Most studies demonstrated higher biomarker levels in disease, with more advanced stages, greater clinical severity and faster progression. NLR showed the most consistent pattern across staging, severity and progression, but is currently under-represented across diseases. CSF YKL-40 generally increased with disease presence and advancement; IL-6 showed consistent increases in advanced stages and with severity, although significant results were limited; MCP-1, CRP and TNF-α were mostly linked to severity and progression; IL-1β and IL-10 remained largely inconsistent. Other markers, including GFAP, showed associations in Alzheimer's disease but remain underexplored in other neurodegenerative diseases. Variability across studies, including differences in biofluid source, assay sensitivity, population characteristics and statistical approaches, limits interpretability and comparability. Although neuroinflammation is elevated in neurodegenerative diseases and generally intensifies as these diseases progress, potentially contributing to downstream pathology, the precise timing, role and predictive value of these biomarkers remain uncertain. A subset of markers, including NLR, YKL-40 and GFAP, shows relatively consistent associations and may warrant further investigation across diseases. In clinical practice, neuroinflammation biomarkers could serve as complementary tools to capture inflammatory processes related to disease heterogeneity and progression. Future longitudinal studies tracking pre-symptomatic and early-stage individuals, with standardized approaches, are needed to define temporal dynamics and explore their utility for monitoring disease progression and therapeutic response.

RevDate: 2026-08-14

Ataei R, Amini J, Sanadgol N, et al (2026)

Circular RNAs in amyotrophic lateral sclerosis.

Neurobiology of disease pii:S0969-9961(26)00319-0 [Epub ahead of print].

Amyotrophic lateral sclerosis (ALS) is a fatal neurodegenerative disorder characterized by the progressive loss of motor neurons, with most cases lacking a clear genetic basis. Emerging evidence highlights the involvement of non-coding RNAs, particularly circular RNAs (circRNAs), in disease onset and progression. Here, we investigated circRNAs implicated in ALS and related motor neuron diseases (MNDs). Here we provide a general overview of circular RNA metabolism and cellular functions. We then present our systematic literature review that identified ALS-associated circRNAs, followed by in silico analyses of 15 circular RNA candidates that were selected based on most compelling data regarding ALS. Our results revealed that several circular RNAs regulate ALS-related genes, such as unfolded protein response, oxidative stress, cell cycle regulation, and apoptosis. Protein-RNA interaction analysis further showed that ALS-related circRNAs can sponge 20 RNA-binding proteins. Additionally, molecular docking analysis demonstrated that ALS-associated FUS variants significantly alter its binding affinity to circular RNAs. RNA-seq data from ALS patients confirmed significant alterations in the expression of host genes of ALS-related circRNAs and hub proteins in ALS-affected CNS tissues. Collectively, our findings identify circRNAs as potential key contributors to ALS pathogenesis.

RevDate: 2026-08-18
CmpDate: 2026-08-15

Sgobbi P, de Rezende Pinto WBV, Seneor DD, et al (2026)

Update and recommendations on genetic testing for amyotrophic lateral sclerosis in clinical practice: a Brazilian expert view.

Frontiers in neurology, 17:1928302.

Amyotrophic lateral sclerosis (ALS) is a complex and progressive neurodegenerative disorder characterized by the degeneration of both upper and lower motor neurons. Although most ALS cases occur sporadically, without a known family history of the disease, genetic factors play a major role in its pathogenesis through monogenic, oligogenic, or polygenic mechanisms. It is estimated that 10-15% of ALS cases occur in a familial setting; however, a specific monogenic cause cannot always be identified. Establishing the underlying genetic basis in both sporadic and familial ALS is essential, as it enables individualized and family genetic counseling, facilitates the early identification of at-risk or oligosymptomatic relatives, improves the prediction of gene-specific clinical trajectories, and, more recently, determines eligibility for gene-targeted therapies, such as tofersen for SOD1-associated ALS and ulefnersen, currently under clinical investigation, for FUS-associated ALS. Over the years, differing opinions have existed regarding the role of genetic testing in individuals diagnosed with ALS. However, accumulating clinical evidence has increasingly supported the timely and early implementation of genetic testing as part of the standard clinical management of patients with ALS. In this article, we present the perspective of leading Brazilian neurologists specializing in ALS care regarding the current role of genetic testing in clinical practice.

RevDate: 2026-08-17
CmpDate: 2026-08-17

Falcone C, Arckens L, Baiula M, et al (2026)

Written in the Stars: Astrocyte Biology From Evolution to Disease.

Acta physiologica (Oxford, England), 242(9):e70289.

In the 21st century, neuroglial research has entered a period of Renaissance, extending the views of prominent neuroanatomists and neurologists of the 19th and early 20th centuries, who assigned to glial cells numerous physiological functions and highlighted their fundamental role in the pathophysiology of nervous system diseases. Astrocytes are highly diversified in structure and function; they control brain homeostasis, support synaptic connectivity, and enable information processing in neural networks. Evolutionary diversification of astrocytes, initially emerging as supportive cells of primitive sensory organs, drove a continuous expansion of astroglial complexity and functional versatility, ultimately making them indispensable neuroprotectors and homeostatic regulators. The large, morphologically elaborate astrocytes of the human brain arguably reflect an evolutionary response to increased neuronal homeostatic demands. Astrocytes are indispensable for synaptic function, serving as the principal regulators of neurotransmitter turnover and neuronal excitability. Astrocytes also govern brain energy metabolism, mitochondrial dynamics, and calcium signaling, thereby actively shaping cortical plasticity and circuits. Astrocytes are fundamental elements of the pathophysiology of neurological, neuropsychiatric, and neurodegenerative diseases, including Alzheimer's and Parkinson's disease, amyotrophic lateral sclerosis, Rett syndrome, genetic astrocytopathies, and neurotrauma, where they demonstrate complex reactive changes directed at tissue preservation and regeneration, but which can also contribute to disease progression. Advances in single-cell transcriptomics, calcium imaging, chemogenetics, and iPSC-based models have transformed our understanding of astrocyte diversity and disease-specific dysfunction, opening new avenues of investigation. Given that no CNS disorder is known to occur without astrocyte involvement, multiple astrocyte-specific molecules represent compelling targets for cell-directed therapeutic strategies.

RevDate: 2026-08-14
CmpDate: 2026-08-13

Vöhringer K, Müller MS, Yildiz CB, et al (2026)

DNMT1 as an environmental sensor: epigenetic pathways linking environmental exposures, sex hormone signaling, and vulnerability to neurodevelopmental and neurodegenerative diseases.

Frontiers in neurology, 17:1883887.

DNA methyltransferase 1 (DNMT1) has classically been viewed as the canonical maintenance methyltransferase, yet accumulating evidence positions it as a multifaceted hub that integrates environmental, hormonal, and metabolic signals with chromatin regulation in the developing and adult brain. This review highlights DNMT1 as an environmentally responsive epigenetic sensor across the lifespan. We examine how psychosocial stress, early-life adversity, inflammation, nutritional and microbiome-derived metabolites, and environmental toxicants modulate DNMT1 expression, subcellular localization, and post-translational modifications, thereby reshaping DNA methylation landscapes in neurons and glia. We further discuss how sex hormone signaling, particularly estrogen receptor alpha α (ERα)-DNMT1 feedback loops, introduces sex-specific dimensions to epigenetic responsiveness, and how lncRNAs serve as intermediaries linking environmental cues to targeted DNMT1 recruitment at specific genomic loci. Building on this framework, we review how DNMT1 dysregulation contributes to neurodevelopmental and neuropsychiatric disorders-including schizophrenia, autism spectrum disorder, and depression-and to neurodegenerative conditions such as Parkinson's disease, Alzheimer's disease, amyotrophic lateral sclerosis, and DNMT1-associated monogenic neurodegenerative disorders. By positioning DNMT1 as a molecular interface between genetic predisposition, environmental exposure, and circuit-level vulnerability, this review highlights the need for integrated, sex-stratified, and longitudinal approaches to understanding epigenetic risk in neurological disease.

RevDate: 2026-08-13

Al-Badaineh M, Josan H, Imran B, et al (2026)

Spin in Systematic Reviews on Patch-Augmented Rotator Cuff Repair: Prevalence, Predictors, and Methodological Implications.

Journal of shoulder and elbow surgery pii:S1058-2746(26)00488-X [Epub ahead of print].

BACKGROUND: Rotator cuff tears are a major cause of shoulder pain and dysfunction, and surgical repair is often complicated by the risk of retear, especially in patients with large, massive, revision tears and high-risk patients. Biologic or synthetic patch augmentation has emerged to reinforce repair and potentially reduce retears. Despite many systematic reviews and meta-analyses on patch-augmented versus non-augmented repair, concerns remain regarding study heterogeneity, outcome variability, and spin in interpretation and reporting, particularly in abstracts. This study assessed the methodological quality and abstract spin.

METHODS: This systematic review was conducted in accordance with the Cochrane Handbook and PRISMA guidelines. On October 30, 2025, PubMed, Scopus, and Web of Science were searched for English-language systematic reviews and meta-analyses comparing patch- or graft-augmented versus non-augmented rotator cuff repair in clinical studies. Eligible reviews reported at least one clinical, patient-reported, or imaging-based outcome. Two reviewers independently performed duplicate study selection, data extraction, spin assessment, and methodological quality appraisal using Yavchitz et al.'s nine severe spin types and AMSTAR-2.

RESULTS: Sixteen reviews and meta-analyses were included in this study. Spin was identified in 81.3% (n = 13) of the abstracts. The types were 5 (62.5%), 3 (56.2%), and 8 (50.0%). Univariate analysis found no significant associations with the funding status (p = 0.36), quality (p = 1.00), or impact factor (p = 0.95). Each AMSTAR-2 flaw was associated with 61% more spin types (IRR 1.61; 95% CI 1.08-2.49; p = 0.02).

CONCLUSION: Spin is prevalent in the abstracts of systematic reviews on patch augmentation for rotator cuff repair, regardless of funding or journal impact factor. Although spin was widespread, poor methodological quality was linked to a greater spin burden rather than its presence. These findings highlight the importance of critically appraising systematic reviews, as spin may contribute to an overly favorable interpretation of the evidence and potentially influence clinical decision-making. Readers should interpret the conclusions cautiously and verify the claims against the full-text results.

LEVEL OF EVIDENCE: Research Methodology Study, Systematic Review.

RevDate: 2026-08-15
CmpDate: 2026-08-13

Paynter C, Mathers S, Vogel A, et al (2026)

Foregrounding Communication Access in Person-Centred Decision Making for People with Motor Neurone Disease: A Narrative Review.

Healthcare (Basel, Switzerland), 14(15):.

Effective motor neurone disease (MND) management depends on patient and carer involvement in decisions about interventions and future care. Communication and cognitive impairments are common in MND and have under-recognised consequences for shared decision making and autonomy. This narrative conceptual review draws on empirical qualitative research with people living with MND and unpaid family carers and the literature specifically concerning shared decision making and communication in MND. Themes relating to communication, information use, and decision making styles were mapped onto an ALS/MND multidisciplinary decision making model. Enhancements to the model include expanding the decision making context beyond in clinical activity, embedding communication and cognitive skills and accommodations across stages, and acknowledging risks to collaborative decision making. Practical strategies for clinicians, healthcare services, people living with MND, and family carers are proposed to ensure that communication is foregrounded in-person-centred MND care. Observational and implementation research is required to evaluate and refine the proposed approaches.

RevDate: 2026-08-14

Rasmussen LK, Gomes Moreira D, Okarmus J, et al (2026)

Mitophagy in neurodegeneration: crosstalk between PRKN/parkin-dependent and PRKN-independent pathways.

Autophagy [Epub ahead of print].

Mitochondrial quality control is essential for cellular homeostasis, particularly in neurons, where mitochondrial dysfunction is implicated in the pathogenesis of neurodegenerative diseases. Mitophagy, the selective degradation of damaged or superfluous mitochondria, plays a central role in maintaining mitochondrial integrity and metabolic balance. This review provides a comprehensive overview of the best-characterized PINK1-PRKN/parkin-dependent mitophagy pathway and the expanding repertoire of PRKN-independent mechanisms, including additional ubiquitin-dependent, receptor-mediated, and lipid-mediated pathways. We explore how these pathways intersect and compensate for one another, highlighting the complexity and adaptability of mitochondrial quality control networks. Furthermore, we discuss how dysregulated mitophagy contributes to the onset and progression of neurodegenerative diseases. By examining the interplay between mitophagy pathways and their regulation under physiological and pathological conditions, this review underscores the therapeutic potential of targeting mitophagy in neurodegeneration. Future studies should aim to decode the spatiotemporal dynamics of these pathways to uncover novel opportunities for clinical intervention.Abbreviations: AD: Alzheimer disease; ALS: amyotrophic lateral sclerosis; AMBRA1: autophagy and beclin 1 regulator 1; AMFR/GP78: autocrine motility factor receptor; AMPK: AMP-activated protein kinase; ARIH1: ariadne RBR E3 ubiquitin protein ligase 1; ATG: autophagy related; Aβ: amyloid beta; BCL2L13: BCL2 like 13; BNIP3: BCL2 interacting protein 3; BNIP3L/NIX: BCL2 interacting protein 3 like; CALCOCO2/NDP52: calcium binding and coiled-coil domain 2; CAMc: core autophagy machinery components; CSNK2/CK2: casein kinase 2; DUB: deubiquitinase; DNM1L/DRP1: dynamin 1 like; FKBP8: FKBP prolyl isomerase 8; FUNDC1: FUN14 domain containing 1; GABARAP: GABA type A receptor-associated protein; GLP-1: glucagon-like peptide 1; HD: Huntington disease; HUWE1: HECT, UBA and WWE domain containing E3 ubiquitin protein ligase 1; IMM: inner mitochondrial membrane; iPSC: induced pluripotent stem cell; LIR: LC3-interacting region; MAP1LC3/LC3: microtubule associated protein 1 light chain 3; MARCHF5: membrane associated ring-CH-type finger 5; MCL1: MCL1 apoptosis regulator, BCL2 family member; MDV: mitochondria-derived vesicle; MFN1: mitofusin 1; MFN2: mitofusin 2; MQC: mitochondrial quality control; mtDNA: mitochondrial DNA; MUL1: mitochondrial E3 ubiquitin protein ligase 1; NBR1: NBR1 autophagy cargo receptor; OMM: outer mitochondrial membrane; OMMAD: outer mitochondrial membrane-associated degradation; OPA1: OPA1 mitochondrial dynamin like GTPase; OPTN: optineurin; OXPHOS: oxidative phosphorylation; PARL: presenilin associated rhomboid like; PD: Parkinson disease; PE: phosphatidylethanolamine; PG: phagophore; PGAM5: PGAM family member 5, mitochondrial serine/threonine protein phosphatase; PINK1: PTEN induced kinase 1; PPARGC1A/PGC-1α: PPARG coactivator 1 alpha; PRKN/parkin: parkin RBR E3 ubiquitin protein ligase; PtdIns3K: phosphatidylinositol 3-kinase; RB1CC1/FIP200: RB1 inducible coiled-coil 1; RHOT1/Miro1: ras homolog family member T1; ROS: reactive oxygen species; SIAH1: siah E3 ubiquitin protein ligase 1; SMURF1: SMAD specific E3 ubiquitin protein ligase 1; SOD1: superoxide dismutase 1; SQSTM1/p62: sequestosome 1; TAX1BP1: Tax1 binding protein 1; TBK1: TANK binding kinase 1; TCA: tricarboxylic acid cycle; TFAM: transcription factor A, mitochondrial; TIMM: translocase of inner mitochondrial membrane; TOMM: translocase of outer mitochondrial membrane; Ub: ubiquitin; ULK1: unc-51 like autophagy activating kinase 1; UPRmt: mitochondrial unfolded protein response; UPS: ubiquitin-proteasome system; USP30: ubiquitin specific peptidase 30; VCP: valosin containing protein; VDAC: voltage dependent anion channel; WIPI: WD repeat domain, phosphoinositide interacting.

RevDate: 2026-08-11
CmpDate: 2026-08-12

Rahim A, Zubair SM, Ahamed M, et al (2026)

cGAS-STING as a Neuroimmune Traffic Molecule: Unraveling Pathogenic Mechanisms and Therapeutic Potential in Neurological Disorders.

Journal of neuroimmune pharmacology : the official journal of the Society on NeuroImmune Pharmacology, 21(1):.

The cyclic GMP-AMP synthase-stimulator of interferon genes (cGAS-STING) pathway is an essential cytosolic DNA-sensing system that plays an important role in the regulation of innate immune and inflammatory responses in the central nervous system (CNS). It was first discovered as a promising antiviral defense cascade and has since been shown to execute broader functions in neuroinflammation and neurodegeneration. The pathway can become hyperactive with the release of endogenous DNA from damaged nuclei, mitochondria, or genomic instability, leading to chronic production of type I interferon (TI-IFN), various pro-inflammatory cytokines, and eventually contributing to chronic neuroinflammatory diseases. Recent studies have found that dysregulated cGAS-STING signaling is associated with several neurological disorders, such as Alzheimer's disease (AD), Parkinson's disease (PD), Huntington's disease (HD), amyotrophic lateral sclerosis (ALS), traumatic brain injury (TBI), stroke, and age-related neurodegeneration. In the CNS, chronic activation of this pathway leads to activation of microglia, oxidative stress, breakdown of the blood-brain barrier (BBB), impaired function of the synapses, and neuronal death. Mitochondrial dysfunction and cytosolic release of mitochondrial DNA (mtDNA) further promote inflammatory signaling, thus perpetuating neurodegeneration. This review highlights the molecular and pathological mechanisms of cGAS-STING signaling in a broader aspect of neurological disorders and appraises the novel therapeutics already under development to inhibit this pathway to regulate neuroinflammation and enhance neurological outcomes.

RevDate: 2026-08-13
CmpDate: 2026-08-12

Glynne-Jones R, S Mawdsley (2026)

The historical perspective on anal cancer therapy: what have we learnt, where did we fail?.

ESMO gastrointestinal oncology, 13(Pt A):100151.

Squamous-cell cancer of the anus is a rare entity. Fifty years ago, understanding the natural history was limited by the lack of an agreed staging system and a largely irrelevant but complex histological categorisation. Retrospective reports described a small number of patients, generally with small tumours, treated by diverse methods with limited follow-up. The use of therapeutic radiation was limited by observed acute toxicity. Some centres gained substantial experience with interstitial radiation, but knowledge and expertise regarding the natural history and optimal methods of treatment were difficult to accumulate and hand on. Radiotherapy (RT) with or without interstitial radiation as the primary treatment, chemoradiotherapy (CRT) both definitive and preoperative, local excision for residual after CRT and small margin carcinomas and 'prophylactic' groin dissections after radical surgery all had advocates in different centres. The dogma in Europe at the time favoured split-course treatments. Early experiments combining fluoropyrimidines and RT were refined with Nigro et al.'s landmark study in 1974. Subsequent regimens are variations and today CRT with concurrent fluoropyrimidines and mitomycin C is accepted as the standard primary treatment. Early randomised phase III trials proved CRT to be more effective than external beam RT alone, but uncertainty remained over the optimal integration of chemotherapy, the type of chemotherapy, the ideal RT doses and potential late effects. These questions were imperfectly addressed and led to subsequent pragmatic phase III trials testing the impact of induction and consolidation chemotherapy and dose escalation. We describe the historical perspective and examine the opportunities we failed to grasp.

RevDate: 2026-08-13
CmpDate: 2026-08-13

Garza TN, JF Abisambra (2026)

The Interactions of Tau, RNA, and Stress Granules in Neurodegenerative Disease: A Comprehensive Review.

Cells, 15(15):.

The discovery of RNA in the late 19th century revolutionized the understanding of cell biology. Subsequent discoveries over the next six decades revealed a key role for RNA in protein synthesis. Nevertheless, today, the mechanisms driving RNA metabolism remain enigmatic. Given its fundamental cellular role, RNA alterations are strongly linked to disease, including devastating neurodegenerative disorders pathologically defined by the accumulation of RNA-binding proteins. For example, the mislocalization of TDP-43, an RNA-binding protein, is a pathological feature of amyotrophic lateral sclerosis and frontotemporal dementia TDP-43. Another group of more than 20 neurodegenerative disorders, called tauopathies, is characterized by the aberrant accumulation of the protein tau. Similarly, the emerging concept that tau binds RNA, facilitating the formation of pathological structures, highlights the importance of RNA stability in tauopathies. However, the dynamics and consequences of RNA-tau interactions remain unclear. This review comprehensively catalogs key findings linking tau, RNA, and stress granules. These findings are important because they could offer novel opportunities to design therapeutic strategies.

RevDate: 2026-08-13
CmpDate: 2026-08-11

Zheng F, Guan R, Yu X, et al (2026)

ADAR-mediated RNA editing in CNS disorders: from pathogenic mechanisms to therapeutic opportunities.

Cellular & molecular biology letters, 31(1):.

The adenosine deaminases acting on RNA (ADAR) family of enzymes (ADAR1 and ADAR2) catalyze adenosine-to-inosine (A-to-I) RNA editing. This post-transcriptional change is remarkably prevalent in the central nervous system (CNS). ADAR-mediated editing is critical for proper brain development, synaptic plasticity, and immunological homeostasis in the central nervous system (CNS) via recoding neurotransmitter receptors and ion channels. Conversely, a wide range of CNS disorders, such as neurodegenerative diseases (Alzheimer's disease, Parkinson's disease, and amyotrophic lateral sclerosis), neuropsychiatric conditions (schizophrenia, bipolar disorder, and major depression), cerebrovascular diseases, and gliomas, are now linked to dysregulation of ADAR activity, whether through loss-of-function mutations, altered expression, or mislocalization. To address the main question of whether altered RNA editing is a fundamental driver of pathogenesis, a compensatory response, or a context-dependent modulator, this review critically synthesizes existing evidence. The basic processes of ADAR enzymes and their regulation throughout neurodevelopment are first described. Next, we thoroughly assess the unique molecular fingerprints of ADAR dysregulation across several CNS disorders, emphasizing recurring themes such as Alu RNA hypo-editing, induction of innate immunity, and GRIA2 editing, which can cause excitotoxicity. Lastly, we examine new treatment approaches that use or reinstate ADAR activity, such as small-molecule modulators and site-directed RNA editing tools (leveraging endogenous ADAR for programmable editing of RNA [LEAPER], clustered ADAR-recruiting guide RNAs (gRNAs) for effective RNA editing [CLUSTER], and mimicking inverted repeats to recruit ADARs using engineered oligoribonucleotides [MIRROR]). We summarize by reviewing key obstacles to clinical translation, including crossing the blood-brain barrier, the risks of off-target editing, and the challenges of achieving spatiotemporal accuracy. We also list important open topics for further investigation.

RevDate: 2026-08-11

Yang Y, Yang Y, Tang Y, et al (2026)

Myokines, Microbiota, and Neuroinflammation: Physical Activity Modulates the Gut-Brain Axis.

Immunological investigations [Epub ahead of print].

BACKGROUND: Neurodegenerative diseases such as Alzheimer's disease, Parkinson's disease, and amyotrophic lateral sclerosis are increasingly recognized as disorders influenced not only by intrinsic neural pathology but also by systemic physiological networks, including the gut-brain axis. Emerging evidence highlights physical activity as a potent modulator of this bidirectional communication system, with muscle-derived signals particularly myokines, metabolites, and extracellular vesicles playing a central role.

METHODS: This narrative review synthesizes current knowledge on how exercise-induced molecular mediators influence gut microbiota composition, intestinal barrier integrity, immune signaling, and neuroinflammatory pathways. Findings were integrated across the disciplines of neuroscience, microbiology, and exercise physiology to evaluate mechanistic links between muscle-secreted factors and gut-mediated responses.

RESULTS: Mechanistic links exist between muscle-secreted factors such as irisin, cathepsin B, BDNF-inducing pathways, and lactate with microbial metabolites including short-chain fatty acids. These interacting pathways demonstrate a combined impact on neuroprotection, synaptic plasticity, and the modulation of disease progression in neurodegenerative conditions.

CONCLUSION: Physical activity represents a promising non-pharmacological strategy for modulating the gut-brain axis in neurodegenerative conditions. Understanding the interplay between muscle-derived signals and gut-mediated pathways may open new avenues for targeted interventions aimed at slowing or preventing neurodegenerative decline.

RevDate: 2026-08-11

Bu J, Nie X, Luo H, et al (2026)

Neuron-Derived Neuroinflammation in Neurodegenerative Diseases: Mechanisms and Intervention Prospects.

Pharmacological research pii:S1043-6618(26)00298-7 [Epub ahead of print].

Neurodegenerative diseases represent a major global public health challenge, imposing substantial societal and economic burdens. Their complex pathogenesis and limited therapeutic options underscore an urgent need for new paradigms. Emerging evidence indicates that dysregulation of the brain's immune microenvironment is a critical driver of disease progression. Conventional wisdom posits that peripheral immune cells and central glial cells serve as the primary initiators of neuroimmune responses, whereas neurons are regarded merely as passive recipients of inflammatory damage. Emerging evidence suggests that upon receiving pathological signals in the central nervous system, neurons may become more vulnerable and participate in the onset of neuroimmune processes, positioning them as potential targets for early intervention in neurodegenerative diseases. This article systematically reviews the contribution of neuron-derived immune-inflammatory responses in neurodegenerative diseases and potential intervention strategies. We first outline the capacity of neurons to regulate neuroimmune responses and detail the underlying molecular mechanisms. Then we compare the specific mechanisms by which neurons with different susceptibility drive and amplify neuroinflammation in various neurodegenerative diseases such as alzheimer's disease, parkinson's disease, amyotrophic lateral sclerosis, vascular cognitive impairment, and transformed these mechanisms into intervention strategies targeting neurons,. This article aims to break through the traditional concept of passive neuronal damage, systematically integrate intervention strategies that shift from targeting peripheral immune and glial cells to regulating neuron-derived immunity, thereby providing a new theoretical framework for overcoming current clinical limitations and identifying effective therapeutic targets for the prevention and treatment of neurodegenerative diseases.

RevDate: 2026-08-11

Jomova K, Alomar SY, Valko R, et al (2026)

Oxidative stress and inflammation in neurodegenerative disorders.

Archives of toxicology [Epub ahead of print].

The brain's consumption of approximately 20% of the body's oxygen contributes to oxidative stress, a significant pathological factor in neurodegenerative diseases such as Alzheimer's disease, Parkinson's disease, Huntington's disease, and amyotrophic lateral sclerosis. This oxidative stress, linked to low levels of antioxidant enzymes, drives neuronal death by facilitating membrane peroxidation of fatty acids, proteins, and DNA. Alzheimer's disease is characterized by amyloid-beta (Aβ) plaque accumulation and hyperphosphorylated tau aggregates, both of which interact with mitochondria to generate reactive oxygen species (ROS). Aβ peptides bind metals such as iron and copper, catalyzing the formation of damaging hydroxyl radicals. Peripheral markers of oxidative damage, such as elevated malondialdehyde and protein carbonyls, are correlated with these processes in affected patients. In Parkinson's disease, the loss of dopaminergic neurons in the substantia nigra is associated with pathological iron accumulation and mitochondrial complex I dysfunction, which are worsened by misfolded α-synuclein and mutations in antioxidant genes such as PINK1 and Parkin. The autooxidation of dopamine also drives oxidative stress through the generation of hydrogen peroxide and reactive quinones. Huntington's disease involves the degeneration of medium spiny neurons in the striatum due to a polyglutamine repeat expansion in the huntingtin gene, which disrupts mitochondrial function and downregulates antioxidants, leading to excitotoxicity and ROS spikes. Amyotrophic lateral sclerosis primarily affects motor neurons due to the mutations in SOD1, which result in the production of aggregates that impair mitochondria and generate reactive nitrogen species (RNS), such as peroxynitrite. Mitigating oxidative stress in neurodegenerative disorders presents a considerable translational challenge. While low-molecular-weight antioxidant therapies for neurodegenerative disorders have shown promising results in preclinical and animal studies because they mitigate oxidative stress, their clinical efficacy is hampered by low bioavailability and difficulty in penetrating the blood‒brain barrier. To overcome these limitations, current medical research is focused on alternative delivery systems. Innovations such as nanoparticle-based drug delivery are being actively studied to help transport low-molecular-weight antioxidants across the blood‒brain barrier more safely and effectively. Several promising epidemiological trials linked high dietary intake of vitamins C and E to a reduced risk of Parkinson's disease, and plant-derived antioxidants such as polyphenols were explored for their ability to combat neuroinflammation and reduce cognitive decline. Refined oxidative stress-suppressing strategies involve the (ii) application of mitochondrial-targeted agents to preserve ATP production; (ii) boosting the Nrf2 pathway may trigger a cascade of detoxifying enzymes; (iii) supplementation with polyphenols such as quercetin, resveratrol, and curcumin can suppress oxidative stress and dampen microglial activation (neuroinflammation); (iv) and the use of substances affecting the bidirectional network linking oxidative stress and autophagy can clear ROS-generating components. Despite some promising epidemiological data, translating oral or systemic antioxidant therapy into effective clinical treatments for humans requires further effort. A survey of current knowledge of oxidative stress and antioxidant therapy in neurodegenerative diseases is the main subject of this review.

RevDate: 2026-08-08
CmpDate: 2026-08-08

Okano H (2026)

From neural development to regenerative medicine: A research journey in stem cell biology, spinal cord repair, and iPSC-based drug discovery.

Regenerative therapy, 33:101157.

This commemorative article reflects on a research journey spanning neural development, stem cell biology, regenerative medicine, and iPSC-based drug discovery. My early work focused on RNA-mediated regulation in the nervous system, including studies on myelin basic protein gene regulation and the identification and functional characterization of the RNA-binding protein Musashi. These studies contributed to the conceptual foundation of neural stem cell biology and helped establish methods for identifying and isolating neural stem/progenitor cells, including those present in the adult human brain. Building on this foundation, my colleagues and I pursued translational research in spinal cord injury, ranging from analyses of injury pathophysiology and molecular interventions to preclinical studies using rodent and non-human primate models. These efforts ultimately led to the first-in-human clinical study of induced pluripotent stem cell-derived neural stem/progenitor cell transplantation for subacute spinal cord injury. In parallel, we developed patient-derived iPSC platforms for neurological disease modeling and drug discovery, particularly for amyotrophic lateral sclerosis, where iPSC-based screening identified Ropinirole as a therapeutic candidate and enabled reverse translational research linking cellular phenotypes with clinical responses. Looking ahead, I argue that the future of regenerative therapy will depend on the continued integration of developmental biology, stem cell science, disease modeling, rehabilitation, and clinical translation to address unmet medical needs in disorders of the central nervous system.

RevDate: 2026-08-10
CmpDate: 2026-08-10

Su B, Li L, Zheng X, et al (2026)

Clinical significance of SQSTM1 variants in ALS: report of p.Arg119Cys and literature review.

Neurogenetics, 27(1):.

We analyzed the clinical features of a patient with amyotrophic lateral sclerosis (ALS) carrying a novel variant in the sequestosome 1 (SQSTM1) gene and explored the genotype-phenotype association of SQSTM1 gene variants in combination with previous literature. Clinical data and genetic testing results of an ALS patient treated at our hospital were collected. Whole-exome sequencing was used to screen for ALS-related genes, and candidate variants were validated by Sanger sequencing and family analysis. A systematic search was conducted in the PubMed database using the keywords ("amyotrophic lateral sclerosis") OR ("motor neuron disease") AND ("SQSTM1") to summarize the clinical and genetic characteristics of previously reported ALS patients with SQSTM1 variants. The patient was a 49-year-old male with progressive weakness in both lower limbs for one year and weakness in the left upper limb for the past three months. Electromyography showed extensive neurogenic damage. Genetic testing identified a novel heterozygous missense variant, c.355 C > T (p.Arg119Cys), in the SQSTM1 gene. Family verification revealed that his phenotypically normal mother carried the same variant. The literature search identified 58 cases of ALS associated with SQSTM1 variants. Missense variants were the most common type. We identified a novel SQSTM1 variant, c.355 C > T (p.Arg119Cys), in a ALS patient. Although this finding expands the variant spectrum, its pathogenicity remains uncertain and requires further functional validation and pedigree confirmation. Our literature review further shows that SQSTM1-associated ALS predominantly presents with limb onset, with a subset of patients exhibiting frontotemporal dementia or Paget's disease.

RevDate: 2026-08-10
CmpDate: 2026-08-11

Oyedokun PA, Gbadero JO, Ajao DI, et al (2026)

The Amino Acid-Neurodegeneration Axis: Excitotoxicity and Oxidative Stress as Context-Dependent Amplifiers of Metabolic Dysfunction.

Molecular neurobiology, 63(1):.

Homeostasis of amino acids is essential for the integrity of the CNS, and is maintained by a tightly regulated transport and metabolic circuit that ensures efficient neurotransmission, mitochondrial bioenergetics and redox homeostasis. Disruption of this equilibrium is associated with the pathogenesis of the major neurodegenerative diseases, including Alzheimer's disease, Parkinson's disease, Huntington's disease and Amyotrophic lateral sclerosis. Excessive glutamatergic stimulation and impaired glycine or homocysteine metabolism result in pathological Ca[2][+] influx, loss of mitochondrial membrane potential and production of reactive oxygen species, which are hallmarks of these disorders. It also limits cysteine availability and causes glutathione depletion, which affects antioxidant defence, and disrupts tryptophan-kynurenine metabolism, further affecting neurotoxic and neuroprotective signalling. Though there are disease-specific molecular triggers, the convergent pathogenesis of metabolic disruption makes neurons susceptible to disease. The convergent pathways link amino acid dysregulation to the reinforcement of each other's mechanisms of excitotoxicity, oxidative stress, mitochondrial dysfunction, and protein aggregation. Correcting the amino acid balance has clear translational potential for developing new therapies, such as glutathione augmentation, modulation of NMDA receptors, targeting of transporters, and regulation of metabolic enzymes. In addition, the use of metabolic biomarkers alongside neuroprotective endpoints in clinical trials could improve detection rates, patient stratification, and therapeutic precision. The concept of amino acid metabolism as a mechanism of neurodegeneration, therefore, provides a systems-level perspective and targets potential areas for continued neuroprotection and disease modification.

RevDate: 2026-08-11
CmpDate: 2026-08-11

Wang CY, Taylor S, Pandya VA, et al (2026)

Intron retention in health and amyotrophic lateral sclerosis.

Brain : a journal of neurology, 149(8):2604-2618.

Intron retention (IR) is the molecular phenomenon by which introns, historically thought to represent non-coding 'junk', remain unspliced within pre-mRNA transcripts, resulting in their incorporation into the mature mRNA molecule. While the role of IR is well established in species of plant, fungi, insects and viruses, it remains relatively understudied in mammalian biology. It was previously assumed that IR only played a limited role in downregulating a transcript's translation potential through downstream initiation of nuclear detention or nonsense mediated decay (NMD). However, recent studies highlight IR's significantly more complex and dynamic contribution to cellular physiology and disease. In particular, a role for IR is emerging in both health and neurodegenerative diseases, including amyotrophic lateral sclerosis (ALS), a rapidly progressive and invariably fatal disease that renders patients paralysed and unable to eat, speak or breathe. Significant technological advances now permit a comprehensive interrogation of previously unrecognized aspects of RNA metabolism in clinically relevant human cell types. In this review, we focus on the differential role(s) of nuclear and cytoplasmic intron retaining transcripts (nIRTs and cIRTs, respectively), as well as how IRTs may influence subcellular localization of ribonucleoprotein (RNP) complexes, loss of function of bound RNA binding proteins (RBPs) and liquid-liquid phase separation (LLPS) in physiology and disease. Additionally, we discuss the potential of IRTs as independent regulatory elements beyond their protein-coding functions and highlight how artificial intelligence is poised to accelerate discoveries in this area. In the context of IR's increasing appreciation, we also highlight its potential as a therapeutic target and explore current and future challenges in this burgeoning field.

RevDate: 2026-08-06
CmpDate: 2026-08-06

Pourasghari M, Babaie S, Markazi-Movaghar R, et al (2026)

The Effectiveness Based on Optimal Dose and Administration Route, and Safety Profiles of Stem Cells and Derived Products in the Treatment of Patients With Amyotrophic Lateral Sclerosis: A Systematic Review and Meta-Analysis.

Stem cells international, 2026:4122493.

BACKGROUND: This systematic review and meta-analysis aimed to evaluate the effectiveness of stem cell therapies for patients with amyotrophic lateral sclerosis (ALS) based on optimal dosing and administration routes, as well as the safety profiles of stem cells and their derived products.

METHODS: The review followed PRISMA guidelines and involved a comprehensive literature search up to October 2025, receiving ethical approval from Tabriz University of Medical Sciences and registration in PROSPERO. It utilized international databases, including PubMed/MEDLINE, Embase, Cochrane Library, Scopus, Web of Science, ProQuest, ClinicalTrials.gov, and Science Direct. The included studies comprised randomized controlled trials (RCTs), quasi-experimental studies, and other interventional designs involving ALS patients treated with stem cell therapies. In total, 31 studies were analyzed, featuring 7 controlled trials with 370 participants and 24 non-controlled pre-post studies with 460 participants. Heterogeneity was evaluated using I [2] statistics, and subgroup analyses were conducted based on treatment duration and dosing.

RESULTS: A pooled analysis (treatment group: n = 93; control group: n = 90) demonstrated a significant attenuation in the progression of disease severity, as measured by the ALS Functional Rating Scale (ALSFRS), in stem cell groups versus controls (weighted mean difference [WMD]: 8.89 95% CI: 4.12-13.67; p = 0.0003), which was beneficial for both the ≥10 × 10[6] and <10 × 10[6] dose sub-groups. However, a meta-analysis of single-arm studies in two control (pre-intervention) and intervention phases (n = 88) demonstrated no significant difference in progression of ALSFRS between study phases by time: month 3 (WMD: -1.27 (-3.01 to 0.47); p = 0.15), month 6 (WMD: -2.69 (-5.62 to 0.25); p = 0.07), month 9 (WMD: -1.55 (-3.49 to 0.39); p = 0.12), and month 12 (WMD: -7.59 (-13.95 to -1.26); p = 0.02). An accelerated decline in forced vital capacity (FVC) was observed during the intervention phase, with statistically significant reductions at month 3 (WMD: -10.91; 95% CI: -16.39 to -5.43; p < 0.0001) and month 6 (WMD: -15.97; 95% CI: -28.60 to -3.33; p = 0.01) compared with the pre-intervention control phase. Nevertheless, sensitivity analyses excluding studies involving high-dose mesenchymal stem cell (MSC) therapies demonstrated that these differences were no longer statistically significant. Moreover, no significant change in progression rate was observed at month 9 (WMD: -8.10 (-18.25 to 2.06); p = 0.12). The route of MSCs administration (intrathecal [IT], intramuscular [IM], and intravenous [IV]) had no effect on the results of ALSFRS and FVC, reinforced by sensitivity analyses. Adverse events were mostly mild, with headaches most frequent in high-dose groups.

CONCLUSION: Stem cell therapy for ALS appears to be safe, with preliminary evidence suggesting potential therapeutic benefit in slowing disease progression in selected patients. Nevertheless, the existing evidence base remains exploratory, and definitive conclusions regarding clinical effectiveness cannot yet be drawn. Future research should prioritize large-scale and multicenter RCTs with standardized cell manufacturing protocols and longer follow-up periods.

RevDate: 2026-08-06

Abrar F, DDO Martin (2026)

Molecular switches of SQSTM1: the impact of post-translational modifications on autophagy and neurodegeneration.

Autophagy [Epub ahead of print].

SQSTM1/p62 (sequestosome 1) is an important receptor protein involved in many cellular signaling processes, including macroautophagy/autophagy. It is a molecular hub for cellular homeostasis and cellular responses. Within autophagy, SQSTM1 targets ubiquitinated cargo for degradation, maintaining cellular proteostasis. Structurally, SQSTM1 consists of several domains that facilitate its binding to ubiquitinated cargo, the formation of SQSTM1 aggregate inclusions, interactions with MAP1LC3/LC3, and the mediation of clearance via the autophagy pathway. Beyond its structure, post-translational modifications of SQSTM1 dynamically regulate its function within a cell. Post-translational modifications - such as phosphorylation, ubiquitination, acetylation, S-acylation, and S-nitrosylation - are crucial for regulating SQSTM1 function, localization, and interaction with autophagic components, thereby influencing SQSTM1's role in the autophagy pathway. Understanding the role of these protein modifications in modulating autophagy may provide better insight into developing therapeutic strategies for diseases with dysregulated autophagy, such as neurodegenerative diseases. This review will discuss the role of these post-translational modifications in controlling SQSTM1's localization and function in autophagy.Abbreviations: ABHD = α/β-hydrolase domain; AD = Alzheimer Disease; ALS = amyotrophic lateral sclerosis; ATG = autophagy related ; CSNK2/CK2 = casein kinase 2; HD = Huntington Disease; HDAC/KDAC = histone deacetylase/lysine deacetylase; HTT = huntingtin; KAT = lysine acetyltransferase; KEAP1 = kelch like ECH associated protein 1; KIR = KEAP1-interacting region; LIR = LC3-interacting region; LYPLA/APT = lysophospholipase/acyl-protein thioesterase; MAP1LC3/LC3 = microtubule associated protein 1 light chain 3; MEF = mouse embryonic fibroblast; mHTT = mutant huntingtin; MTORC1 = MTOR complex 1; NBR1 = NBR1 autophagy cargo receptor; NEDD4 = NEDD4 E3 ubiquitin protein ligase ; NO = nitric oxide; NFE2L2/Nrf2 = nuclear factor erythroid 2-factor 2; PAT = palmitoyl acyltransferase; PB1 = Phox-BEM1 domain; PE = phosphatidylethanolamine; PLEKHM1 = pleckstrin homology and RUN domain containing M1; PLK2 = polo like kinase 2; PRKA/PKA = protein kinase cAMP-activated; PPT1 = palmitoyl-protein thioesterase 1; RB1CC1 = RB1 inducible coiled-coil 1; SNCA/α-synuclein = synuclein alpha; SNO = S-nitrosothiol; SOD1 = superoxide dismutase 1; SQSTM1 = sequestosome 1; TARDBP/TDP-43 = TAR DNA binding protein ; TBK1 = TANK binding kinase 1; TAX1BP1 = Tax1 binding protein 1; TRIM = tripartite motif containing ; UBA = ubiquitin-associated domain; UBE = ubiquitin-conjugating enzyme; ULK1 = unc-51 like autophagy activating kinase 1; UPS =ubiquitin-proteasome system; USP8 = ubiquitin specific peptidase 8; ZDHHC = zDHHC palmitoyltransferase.

RevDate: 2026-08-07

Risby-Jones G, Lee JD, JN Fung (2026)

Interleukin-6 trans-signalling as a selectively targetable driver of neurodegeneration.

Trends in neurosciences pii:S0166-2236(26)00140-2 [Epub ahead of print].

Interleukin-6 (IL-6) exerts protective and pathogenic effects in the central nervous system through distinct receptor-signalling modes. Classical signalling via membrane-bound IL-6 receptor (IL-6R) is often associated with homeostatic and reparative functions, whereas trans-signalling, mediated by soluble IL-6R, expands IL-6 responsiveness to gp130-expressing cells and may promote chronic inflammation. Emerging evidence implicates dysregulated IL-6 trans-signalling in amyotrophic lateral sclerosis, Alzheimer's disease, Parkinson's disease, Huntington's disease, and multiple sclerosis. Here, we review mechanisms linking IL-6 trans-signalling to immune, glial, neuronal, and vascular dysfunction in neurodegeneration. We highlight key knowledge gaps and discuss whether selective targeting of trans-signalling can limit inflammatory pathology while preserving beneficial classical IL-6 functions.

RevDate: 2026-08-05
CmpDate: 2026-08-05

Rahman U, SC Yang (2026)

Management of Anastomotic Leaks: Endoscopic, Interventional, and Surgical Strategies.

Advances in surgery, 60(1):259-270.

Anastomotic leaks (ALs) are a significant source of morbidity and mortality. Every step should be implemented to prevent AL, including careful patient selection, optimizing patient's clinical and nutritional status, and ensuring proper technique. The appropriate management of an AL depends on several factors, such as patient's clinical status, the type of surgery, location of the AL, induction therapies, and the resources available. Surgeons should be familiar with the armamentarium of treatment modalities available to manage AL and use a patient-tailored approach when selecting the most appropriate treatment.

RevDate: 2026-08-06
CmpDate: 2026-08-06

Li S, Cao T, Q Zhang (2026)

Oxidative stress as a driver of organelle cascade damage in neurological diseases.

Frontiers in aging neuroscience, 18:1892923.

As a core driver in the pathological progression of neurological diseases, oxidative stress contributes to the onset and development of multiple disorders, including traumatic brain injury (TBI), Alzheimer's disease (AD), Parkinson's disease (PD), Huntington's disease (HD), and amyotrophic lateral sclerosis (ALS), by inducing interconnected and bidirectional damage among mitochondria, endoplasmic reticulum, lysosomes, and the nucleus. This review systematically summarizes the oxidative stress-mediated inter-organelle crosstalk network: Mitochondria act as one of the earliest and central hubs, and their dysfunction (e.g., reactive oxygen species burst, calcium overload, and respiratory chain impairment) induces endoplasmic reticulum stress via ROS diffusion and calcium signaling disturbance. The disruption of endoplasmic reticulum calcium homeostasis further exacerbates mitochondrial damage, forming a vicious cycle. Lysosomes exhibit reduced membrane stability and impaired autophagic flux under oxidative stress, failing to clear damaged organelles and aggravating oxidative stress accumulation. Ultimately, oxidative stress signals are transmitted to the nucleus, resulting in DNA damage, aberrant epigenetic modifications, and activation of pro-inflammatory/pro-apoptotic genes, thereby accelerating disease progression. Notably, this organelle injury transmission is not a rigid unidirectional linear cascade; primary lysosomal or MAM defects can independently initiate the full organelle damage loop without preceding mitochondrial dysfunction. This review integrates current studies, clarifies context-dependent and disease-specific characteristics of organelle interactions, and discusses potential therapeutic strategies with critical consideration of translational challenges and limitations, providing a theoretical foundation for mechanistic research and clinical intervention of neurological diseases.

RevDate: 2026-08-07
CmpDate: 2026-08-07

de La Seiglière H, Letourneur Æ, Ichas F, et al (2026)

Phase separation and protein aggregation in neurodegenerative diseases.

Biophysical chemistry, 338:107678.

Neurodegenerative diseases such as Alzheimer's, Parkinson's, frontotemporal dementia, and ALS are characterized by amyloid protein aggregation involving intrinsically disordered proteins that are also capable of liquid-liquid phase separation (LLPS). LLPS, known to drive the formation of dynamic membraneless organelles essential for cellular functions, can play a role in limiting fibrillation process or aberrantly transition into solid aggregates under pathological conditions. Here we review how mutations, post-translational modifications, and environmental factors can modulate LLPS of proteins like Tau, TDP-43, FUS, and α-synuclein, potentially regulating amyloid aggregation. We also examine the interplay of these proteins exploring how LLPS and condensate maturation could impinge on the emergence of co-pathologies contributing to disease progression. Finally we discuss emerging therapeutic strategies, aimed at modulating phase separation dynamics.

RevDate: 2026-08-04

Takahashi M, Abe T, M Fujii (2026)

Targeting Ubiquitinated Protein Aggregates in Neurodegenerative Diseases: current Status and Future Directions.

Molecular and cellular biology [Epub ahead of print].

Various cellular stressors inhibit translation initiation and promote ribosome disassembly, thereby transiently inducing stress granules (SGs), dynamic ribonucleoprotein condensates that contain mRNAs and RNA-binding proteins. Although SG assembly is usually reversible, dysregulated SG dynamics can trigger the formation of persistent ubiquitin-positive protein inclusions. There is increasing evidence that this conversion of SGs into insoluble aggregates represents a central pathogenic mechanism in neurodegenerative proteinopathies, such as amyotrophic lateral sclerosis (ALS) and Alzheimer's disease (AD). TAR DNA-binding protein 43 (TDP-43) and Tau are causative factors in ALS and AD, respectively, and both localize to SGs under stress conditions. During disease progression, TDP-43 or Tau within SGs undergoes pathological changes that promote the formation of neurotoxic inclusions, which propagate neuronal dysfunction and death. This review summarizes recent advances in understanding the molecular factors that regulate SG assembly and disassembly, as well as the pathological processes that drive the conversion of SGs into aggregates associated with neurodegenerative diseases. Particular emphasis is placed on the role of the ubiquitin-specific protease 10 (USP10), which modulates SG dynamics and has been mechanistically implicated in both ALS and AD. Finally, we discuss the therapeutic potential of targeting these pathways to mitigate neurodegenerative disease progression.

RevDate: 2026-08-04
CmpDate: 2026-08-04

Venu G, A VP, A Justin (2026)

Molecular insights of peroxisome proliferator-activated receptor-γ signalling in amyotrophic lateral sclerosis and Huntington's disease.

International review of neurobiology, 188:113-143.

Progressive neuronal loss is a hallmark of neurodegenerative diseases like Huntingtons disease (HD) and Amyotrophic lateral sclerosis (ALS) which are caused by convergent mechanisms such as oxidative stress, mitochondrial dysfunction, neuroinflammation, impaired autophagy and dysregulated cell death pathways. Both conditions share significant disruptions in metabolic and inflammatory signalling despite having different genetic origins and clinical manifestations; underscoring the necessity of pathway-oriented treatment approaches. In the central nervous system, peroxisome proliferator-activated receptor-γ (PPAR-γ), a ligand-activated nuclear receptor has become an important regulator of inflammation, redox homeostasis, mitochondrial biogenesis and cellular stress responses. After giving a thorough overview of PPAR-γ structure activation and transcriptional regulation and the PGC-1α-mediated mitochondrial biogenesis axis, this chapter delves deeply into its interactions with major signalling pathways such as NF-κB, Wnt/β-catenin Nrf2/ARE and the autophagy-apoptosis networks. With a focus on experimental data showing PPAR-γ signaling's neuroprotective, anti-inflammatory, antioxidant and metabolic regulatory roles the pathophysiology of ALS and HD is critically investigated. Lastly the need for improved biomarkers, tailored multi-target strategies and selective modulators is highlighted in the discussion of current therapeutic limitations and translational difficulties.

RevDate: 2026-08-04
CmpDate: 2026-08-04

Khodve G, Raval S, S Banerjee (2026)

Intestinal microbiota in neurodegeneration and ageing: Mechanisms, pathways, and therapeutic interventions.

International review of neurobiology, 188:199-229.

The human gut microbiota represents a complex ecosystem of trillions of microorganisms with profound implications for neurological health. Emerging evidence demonstrates that dysbiosis, an imbalance in microbial composition and function, plays a crucial role in the pathogenesis of neurodegenerative diseases and age-related cognitive decline. This chapter summarizes current knowledge of the microbiota-gut-brain axis (MGBA) and elucidates how intestinal microbes and their metabolites communicate with the central nervous system via neural, immune, endocrine, and metabolic pathways. We examine the mechanistic links between gut dysbiosis and specific neurodegenerative conditions, including Alzheimer's disease (AD), Parkinson's disease (PD), Amyotrophic lateral sclerosis (ALS), Huntington's disease (HD), and Multiple sclerosis (MS). Furthermore, we explore age-related changes in the microbiota and their contributions to neuroinflammation, immunosenescence, and cognitive decline. Finally, we evaluate therapeutic interventions targeting the microbiota, including probiotics, prebiotics, synbiotics, and dietary modulation as promising strategies to prevent and ameliorate neurodegenerative pathology. The chapter provides a comprehensive summary of how microbiota-targeted approaches may delay ageing and neurodegeneration.

RevDate: 2026-08-05
CmpDate: 2026-08-05

Li Q, M You (2026)

Targeting mitochondria for the treatment of neurodegenerative diseases.

Frontiers in neuroscience, 20:1835506.

Mitochondria are central regulators of cellular metabolism, redox balance, calcium signaling, and cell survival, making them essential for neuronal function. Because neurons rely heavily on mitochondrial oxidative phosphorylation to meet their high energetic demands, mitochondrial dysfunction has emerged as a key pathogenic driver in major neurodegenerative diseases, including Alzheimer's disease, Parkinson's disease, Huntington's disease, and amyotrophic lateral sclerosis. Defects in mitochondrial bioenergetics, excessive reactive oxygen species production, impaired mitochondrial dynamics, disrupted mitophagy, and dysregulated calcium handling collectively contribute to neuronal damage, synaptic dysfunction, and neuroinflammation. These insights have prompted growing interest in therapeutic strategies that directly target mitochondria to restore organelle homeostasis. Recent advances in chemical biology and nanomedicine have enabled the development of mitochondria-targeted ligands, peptide-based targeting systems, and carrier or nanotechnology-enabled delivery platforms designed to overcome biological barriers and selectively deliver therapeutic cargos to mitochondria within the central nervous system. In this Review, we summarize mitochondrial pathological mechanisms in neurodegenerative diseases and discuss emerging mitochondria-targeted therapeutic strategies, highlighting delivery technologies, therapeutic modalities, and translational challenges. Although most strategies remain at the preclinical or proof-of-principle stage, these advances are beginning to shape a conceptual framework for precision mitochondrial medicine, with the longer-term goal of developing disease-modifying interventions for neurodegenerative disorders.

RevDate: 2026-08-04
CmpDate: 2026-08-04

Konarbayeva Z (2026)

Rheological and Technological Design of Texture-Modified Food Systems for Dysphagia Management in Amyotrophic Lateral Sclerosis.

Journal of texture studies, 57(4):e70105.

Amyotrophic lateral sclerosis (ALS) is frequently accompanied by progressive dysphagia, weight loss, and hypermetabolism, which complicate the maintenance of adequate nutritional status. For these patients, food systems must not only provide sufficient energy and protein within a limited volume but also exhibit textural and rheological properties that support safe swallowing. This review analyzes technological and rheological approaches to the design of texture-modified food systems for nutritional support in ALS. Particular attention is given to apparent viscosity, shear-thinning behavior, yield stress, structural homogeneity, and storage stability as parameters affecting bolus formation, swallowing safety, and product performance. The relevance of the International Dysphagia Diet Standardization Initiative framework for classifying food textures and liquid consistencies is also considered. The review further examines the functional and technological roles of animal- and plant-based raw materials, including regional raw materials, in the formulation of energy-dense and structurally stable foods. Proteins, lipids, hydrocolloids, starch gels, and polysaccharide networks are discussed as key components for controlling texture, viscosity, gelation, emulsion stability, and nutritional density. Technological strategies such as homogenization, emulsification, protein-based structuring, hydrocolloid thickening, high-pressure homogenization, and 3D food printing are considered in relation to their potential for developing safe, acceptable, and locally adaptable products for patients with ALS-related dysphagia. The findings highlight the need to integrate food texture science, rheological control, nutritional adequacy, sensory acceptability, and regional availability in the development of clinically relevant texture-modified foods.

RevDate: 2026-08-01

Oriquat G, Rizaev J, Abdulqader AF, et al (2026)

Gut microbiota and brain health: Disease-specific pathways and emerging therapeutic strategies.

Multiple sclerosis and related disorders, 113:107407 pii:S2211-0348(26)00442-6 [Epub ahead of print].

The microbiota-gut-brain axis (MGBA) has emerged as a dynamic, bidirectional communication system linking the gastrointestinal tract and the central nervous system (CNS) through neural, immune, endocrine, and metabolic mechanisms. Increasing evidence indicates that alterations in gut microbial communities are associated with a wide range of neurological disorders; however, the strength of this association varies across diseases, and many mechanistic observations still rely predominantly on experimental models rather than human studies. This review provides an overview of current evidence regarding the role of the gut microbiota in maintaining CNS homeostasis, with particular emphasis on intestinal barrier function, immune modulation, vagal and enteric communication, and the generation of biologically active microbial metabolites, including short-chain fatty acids, bile acids, and neurotransmitter-related compounds. Studies in both clinical and experimental settings have reported disease-specific microbial signatures in conditions such as Alzheimer's disease, Parkinson's disease, multiple sclerosis, autism spectrum disorders, and amyotrophic lateral sclerosis. In parallel, microbiota-directed interventions-including probiotics, prebiotics, dietary approaches, fecal microbiota transplantation, and strategies targeting microbial metabolites-have produced encouraging findings in preclinical studies and early-stage clinical investigations. Nevertheless, considerable heterogeneity in study populations, experimental methodologies, and therapeutic protocols continues to limit the translation of these findings into routine clinical practice. Collectively, current evidence supports the MGBA as a valuable framework for understanding neurological diseases while underscoring the need for rigorously designed longitudinal studies and well-controlled clinical trials to define its therapeutic relevance better.

RevDate: 2026-08-04

Du L, J Yan (2026)

Lineage-calibrated peripheral monocyte-derived myeloid states in neurodegenerative disease: Recruitment, lesion decoding, and state persistence.

Neurobiology of disease, 228:107556 pii:S0969-9961(26)00301-3 [Epub ahead of print].

Peripheral monocytes and monocyte-derived macrophages are increasingly implicated in neurodegenerative disease, yet interpretation remains limited by phenotypic convergence with resident microglia, inconsistent lineage attribution, and strong dependence on experimental model and disease stage. We present a structured, lineage-calibrated framework that separates three linked processes: a recruitment gate controlling access to CNS borders and lesions; a lesion-decoding hub through which aggregate, lipid, cytokine, complement, antigenic, hypoxic, and danger-associated inputs are interpreted; and a state-persistence layer in which metabolic and epigenetic reinforcement stabilizes inflammatory, repair-supportive, or hybrid repair-restrictive programs. To make the framework operational, we first provide a cross-disease synthesis and then map representative models of Alzheimer's disease, Parkinson's disease, amyotrophic lateral sclerosis, and multiple sclerosis to their specific recruitment routes, lesion cues, lineage confidence, and functional outcomes. We also distinguish what single-cell or spatial data can infer from what only origin-resolving approaches can establish, and propose practical terminology for studies that cannot perform fate mapping or parabiosis. A worked therapeutic example illustrates why the same recruitment pathway may be harmful during lesion expansion but useful during debris clearance and recovery. The central question is therefore not whether monocytes are present, but which model, compartment, time point, evidentiary tier, and stabilized state justify a disease-modifying claim. This framework links mechanistic evidence to biomarkers, patient stratification, and stage-aware intervention while reducing over-attribution of peripheral origin.

RevDate: 2026-08-03

Ghaderi S, Mohammadi S, Y Iturria-Medina (2026)

Quantitative susceptibility mapping in neurodegenerative diseases: An umbrella review of iron-related biomarkers and mechanisms.

Magnetic resonance imaging pii:S0730-725X(26)00158-X [Epub ahead of print].

Pathological iron accumulation is a common pathophysiological hallmark across multiple neurodegenerative diseases (NDDs), motivating the need for accurate, non-invasive quantification methods. Quantitative susceptibility mapping (QSM) is an advanced magnetic resonance imaging (MRI) technique that enables in vivo measurement of tissue magnetic susceptibility (χ), providing a sensitive proxy for iron content. This umbrella review systematically evaluates the diagnostic accuracy, clinical correlations, and distinct iron distribution patterns of QSM in major NDDs, such as Parkinson's disease (PD), Alzheimer's disease (AD), amyotrophic lateral sclerosis (ALS), and atypical Parkinsonism. We included 15 (13/15 were rated Low or Critically Low on AMSTAR 2) systematic reviews and meta-analyses (through July 15, 2026); however, the findings should be interpreted cautiously because of heterogeneity and the low methodological quality. A Corrected Covered Area (CCA) analysis demonstrated only slight overlap of primary studies across the included reviews (CCA = 5.42%). Collectively, the evidence indicates that QSM provides comparable or higher diagnostic sensitivity and reliability than conventional R2* and SWI techniques, particularly for deep gray matter structures. The findings support significant iron overload in the substantia nigra, particularly in the pars compacta, as a robust biomarker for PD that correlates with motor severity and disease duration. Furthermore, regional iron profiling in the basal ganglia is critical for differential diagnosis; specifically, elevated χ in the putamen and globus pallidus effectively distinguishes multiple system atrophy and progressive supranuclear palsy from idiopathic PD. Distinctively, AD and ALS exhibit specific χ alterations in the thalamus, motor cortex, and hippocampus, reflecting divergent iron-related pathophysiological mechanisms, which correlate with cognitive impairment and upper motor neuron signs. Overall, QSM shows diagnostic promise and offers mechanistic insights into iron-related neurodegenerative processes.

RevDate: 2026-08-03
CmpDate: 2026-08-03

Prasun P, M Rasberry (2026)

Expanding Spectrum of FIG4-Related Neurological Disorders of Lysosomal Homeostasis: Case Report and Overview of the Potential Genotype-Phenotype Correlations.

Clinical genetics, 110(3):363-368.

Biallelic loss-of-function variants in FIG4 are associated with Charcot-Marie-Tooth disease type 4J, a progressive peripheral sensorimotor demyelinating polyneuropathy. Biallelic null FIG4 variants cause Yunis-Varon syndrome, a severe neurological disorder characterized by global developmental delay, hypotonia, brain malformations, skeletal defects, dysmorphic facial features, and juvenile lethality. In the past few years, many individuals with combined central and peripheral nervous system disease associated with biallelic FIG4 variants have been described. In addition, certain heterozygous FIG4 variants are associated with amyotrophic lateral sclerosis. We describe an individual with global developmental delay, hypotonia, cerebral hypomyelination, peripheral hypomyelinating polyneuropathy, frequent fractures, and juvenile ossifying fibroma. The spectrum of clinical presentation of FIG4-related disorders is increasingly being recognized. Our observations expand the phenotypic spectrum of FIG4-related neurological disorders. In addition, we provide an overview of the potential genotype-phenotype correlations of this expanding group of disorders of lysosomal homeostasis.

RevDate: 2026-08-03
CmpDate: 2026-08-03

Kim JS, Yu S, Mitchell MB, et al (2026)

The Implementation of Competency-Based Medical Education in Surgical Training: A Scoping Review.

Journal of surgical education, 83(9):104056.

BACKGROUND: The pace of implementation of competency-based medical education (CBME) in postgraduate surgical training has varied substantially across settings, due in part to inconsistent definitions of what constitutes CBME in practice. Employing the lens of Van Melle et al.'s 2019 codification of the core components of CBME, this scoping review aims to characterize how CBME has been implemented in surgical residency programs worldwide.

METHODS: Embase, PubMed, MedEdPortal, and ERIC were searched for English-language articles describing active CBME implementation in surgical residency programs. A scoping review was conducted using Covidence and reported using the PRISMA-ScR guidelines. Research abstracts, systematic/scoping reviews, and studies describing isolated workshops or training supplements were excluded. CBME implementations extracted from included studies were classified as systemic implementations, local innovations, or competency-based assessment instruments. Given substantial redundancy in the literature, not all studies describing the U.S. Accreditation Council for Graduate Medical Education Core Competencies or Milestones were included; 5 exemplary studies from this corpus were included as representative descriptions. All included studies were evaluated against the 5 CBME core components: outcome competencies, sequenced progression, tailored learning experiences, competency-focused instruction, and programmatic assessment.

RESULTS: Seventy studies published between 2001 and 2023 were included, predominantly from North America and Europe. Outcome competencies were clearly defined across all systemic implementations; however, sequenced progression, competency-focused instruction, and programmatic assessment were more variably incorporated, and were more often satisfied in Canadian and European frameworks. While local innovations and assessment instruments demonstrated novelty and the feasibility of CBME implementation, alignment with all 5 core components was uncommon.

CONCLUSIONS: CBME implementation in surgical residency remains heterogeneous, with many programs layering components of CBME onto existing curricular structures. These findings suggest that greater emphasis on future systemic educational reform efforts may support more impactful CBME implementation in surgical training programs.

RevDate: 2026-08-03
CmpDate: 2026-08-03

Romano C, Johar L, Hundhausen K, et al (2026)

Clinical studies in 82 individuals with valosin-containing protein (VCP) associated multisystem proteinopathy and literature review.

Neuromuscular disorders : NMD, 65:106469.

Valosin-containing protein (VCP) pathogenic variants cause a multisystem proteinopathy characterized by myopathy, Paget disease of bone, frontotemporal dementia, and amyotrophic lateral sclerosis (ALS). We evaluated 82 affected individuals, 14 presymptomatic carriers, and 36 unaffected first-degree relatives from 48 families to identify sensitive measures for disease monitoring. Mean age of onset was ∼42 years for myopathy, Paget disease, or ALS, and 53 years for dementia. Functional assessments included the Inclusion Body Myositis Functional Rating Scale (IBMFRS), ALSFRS-R, Fatigue Severity Scale (FSS), and six-minute walk test (6MWT). Affected individuals demonstrated progressive functional decline, with IBMFRS decreasing 1.9% annually, FSS increasing 4.4%, and 6MWT decreasing 6% annually when modeled against disease duration. Women declined more rapidly on IBMFRS but showed slower ambulatory and fatigue progression. Potential genotype-specific effects were observed, with earlier onset and shorter survival in p.Arg155Cys compared to later onset in p.Arg155His. Strong correlations among IBMFRS, FSS, and 6MWT indicate these as accessible endpoints for longitudinal monitoring and clinical trials. Rapid decline with ALS and dementia necessitates multidisciplinary support, while longer survival after myopathy or Paget onset offers a window for preventive and supportive interventions.

RevDate: 2026-08-01
CmpDate: 2026-08-01

Chu M, Tan M, Gan X, et al (2026)

Targeting Mitochondrial Dysfunction in Microglia: A New Frontier for Treating Neurodegenerative Diseases.

Molecular neurobiology, 63(1):.

Neurodegenerative diseases including Alzheimer's disease (AD), Parkinson's disease (PD), and amyotrophic lateral sclerosis (ALS) pose an urgent global health challenge. Growing evidence establishes microglia-driven neuroinflammation as a key driver of disease onset and progression, with mitochondrial dysfunction emerging as an early trigger of microglial activation. This review comprehensively summarizes current progress on how mitochondrial alterations regulate microglial activation across AD, PD, and ALS. We identify conserved mechanisms including metabolic reprogramming, impaired mitophagy, and inflammatory signaling, though Aβ, α-synuclein, and TDP-43 engage these pathways through disease-specific molecular routes. Therapeutic strategies targeting microglial mitochondria, including cGAS-STING and NLRP3 inhibitors, TREM2 agonists, and mitochondrial transplantation, remain largely preclinical. Emerging targets such as OLFML3 and GPNMB require functional validation in microglia. Collectively, this review underscores that preserving microglial mitochondrial health represents a promising therapeutic frontier and identifies key priorities for translating these strategies toward clinical application.

RevDate: 2026-08-02
CmpDate: 2026-08-02

Williams KJ (2026)

Anti-inflammatory agents in atherosclerosis-and a need for reform: Extraordinary claims require extraordinary evidence.

Journal of internal medicine, 300(3):258-283.

Since 1858, human atherosclerotic plaques have been shown to contain immune cells. But are these cells suitable therapeutic targets? Dozens of clinical trials of anti-inflammatory agents other than colchicine have been performed in patients with clinically evident atherosclerosis. None of these trials led any regulatory body in any jurisdiction to allow a cardiovascular indication for any of these agents. This discouraging work provides a background to evaluate new data on colchicine. In 2024-2025, new clinical trials of colchicine in patients with atherosclerosis showed benefit, no benefit, or harm. In 2025-2026, over a dozen meta-analyses so far have appeared, drawing on ∼34 trials, but do not agree with each other. One of these meta-analyses, Xie et al.'s in the Journal of Internal Medicine, provides a compelling graphical display of the pre-specified primary outcomes of six long-term clinical trials as they were published over time. The pattern of early positive trials, then newer negative (null) trials, suggests regression to the truth. Jeon and Cho et al.'s population-wide study in the Journal of Internal Medicine of patients with Type 2 diabetes and gout found no benefit from colchicine over nonsteroidal anti-inflammatory drugs on major adverse cardiovascular events. This information suggests several areas for reform of research on inflammation in atherosclerosis. Fully informed consent should require that clinical trials of anti-inflammatory agents in atherosclerotic arterial disease must disclose to trial participants the failures of this approach in over 50 clinical trials to date, spanning decades. Additionally, the field might reconsider its commitment to the Big Idea that inflammation must be a definitive therapeutic target in atherosclerosis. The track record so far for inflammation inhibition in atherosclerosis is extensive and disappointing-a fact that merits wider discussion. Therapeutic successes from targeting cholesterol-rich, apolipoprotein-B-containing lipoproteins-the proven causative agents of this disease-provide extraordinary evidence. Current data for colchicine and other anti-inflammatory therapies do not.

RevDate: 2026-08-01
CmpDate: 2026-08-01

Estevez-Fraga C, Alvarez-Velasco R, Afroz T, et al (2026)

Targeting TDP-43 in sporadic amyotrophic lateral sclerosis.

Journal of neurology, 273(8):.

Amyotrophic lateral sclerosis (ALS) is a rapidly progressive neurodegenerative disorder characterized by motor neuron degeneration leading to early mortality. Despite advances in understanding genetic and molecular contributors, effective disease-modifying therapies for sporadic ALS are of limited utility. The identification of the accumulation of TAR DNA-binding protein 43 (TDP-43) in 97% of total ALS cases represents a critical pathogenic hallmark. This review examines key biological mechanisms underlying TDP-43 pathology, emerging therapeutic strategies, and evolving approaches to clinical trial design and biomarker development. TDP-43 loss of nuclear function, leading to widespread RNA missplicing, and inclusion of cryptic exons, represents an early and critical event in ALS pathogenesis causing downstream dysregulation of key neuronal genes such as STMN2 and UNC13A contributing to axonal degeneration and synaptic dysfunction. Therapeutic strategies targeting these pathways are currently under investigation. Additional approaches aim to ameliorate TDP-43 gain-of-function through cytoplasmic TDP-43 aggregation or modulating processes such as stress responses and RNA metabolism, although clinical translation has been challenging. Advances in biomarkers, including neurofilament light chain and cryptic exon-derived peptides, provide tools for developing efficient clinical trials. However, heterogeneity in disease progression and limitations of available clinical endpoints complicate trial design. Integration of biological insights with biomarker-driven patient stratification and optimized trial methodologies is essential to improve clinical trial outcomes. Emerging biomarkers may enable earlier diagnosis, monitoring of therapeutic response, and personalized treatment approaches. Continued alignment of biological discovery with innovative clinical trial design holds promise for advancing effective therapies and transforming the future of ALS.

RevDate: 2026-08-01
CmpDate: 2026-08-01

Khokhar MA, O'Malley LA, Glenny AM, et al (2026)

Oral Health Care Services, Barriers and Enablers to Maintaining Good Oral Health in Motor Neurone Disease: A Scoping Review.

Community dentistry and oral epidemiology, 54(4):447-461.

OBJECTIVES: The objective of this scoping review was to map existing literature on oral health and related care in individuals with Motor Neurone Disease (MND). Specifically, the review aimed to identify barriers and facilitators to maintaining oral hygiene, summarise available clinical guidelines and patient-facing resources, and examine how oral health care is integrated within multidisciplinary management of MND.

METHODS: The review focused on oral health practices without restrictions on language, publication date or study type, excluding studies unrelated to MND or oral health. Data sources included MEDLINE, Embase, CINAHL, and grey literature such as clinical guidelines and patient resources. Screening and data extraction were performed independently by two reviewers to ensure rigor.

RESULTS: Of 847 studies screened, eleven primary studies met the inclusion criteria, comprising case reports, case series, self-reports, cross-sectional studies and letters. The grey literature search identified three clinical guidelines and eight patient information leaflets/resources. The included studies spanned diverse populations, including Amyotrophic Lateral Sclerosis (ALS) patients with varying disease subtypes and care needs, and explored oral hygiene difficulties, care barriers and unique insights from the case studies. Identified gaps highlighted the lack of integration of dental professionals into multidisciplinary care teams. Barriers such as physical limitations, caregiver dependency and limited-service accessibility were prevalent. However, caregiver involvement, multidisciplinary collaboration and innovative solutions like antimicrobial photodynamic therapy and adaptive oral aids emerged as enablers. Poor oral health was strongly associated with increased pain, aspiration pneumonia and diminished well-being, emphasising the need for targeted interventions.

CONCLUSION: Embedding oral health management within multidisciplinary care frameworks for MND patients, enhancing caregiver training, improving access to dental services and adopting innovative strategies will improve patient outcomes and inform future research.

RevDate: 2026-07-29
CmpDate: 2026-07-29

Longo UG, Merone M, Schena E, et al (2026)

A practical guide to the implementation of AI in orthopaedic research-Part 4: Prerequisites for a successful orthopedics AI-driven project in terms of interdisciplinary collaboration, data management, ethical approval and technology.

Journal of experimental orthopaedics, 13(3):e70863.

UNLABELLED: Translating artificial intelligence (AI) research in orthopedics from proof-of-concept studies into production-grade clinical systems requires the systematic satisfaction of four prerequisite domains: interdisciplinary team architecture, technical data management, ethical and regulatory governance and production-grade technology and deployment infrastructure. Despite a tenfold increase in orthopedic AI publications, fewer than 6% of studies reach routine clinical deployment, reflecting persistent gaps in each of these domains. This article provides a technically rigorous, evidence-based framework organized around these four pillars. The interdisciplinary team may be structured using a product-centric topology that decouples stream-aligned clinical teams from platform infrastructure teams, following Huffman et al.'s six-step AI project lifecycle: obtain/curate/label data; establish a reference standard; develop the model; evaluate performance; externally validate and iteratively reinforce until clinical implementation is viable. Data management requires data extraction protocols, integration for bulk exports and a multi-component de-identification pipeline. A multi-stage Institutional Review Board framework governs ethical oversight, scaling from Exempt review for retrospective de-identified studies to Full Board Review with prospective validation and mandatory human-override mechanisms for interventional deployment. Responsible clinical deployment requires a multi-layer Clinical Machine Learning Operations framework, implementing privacy-preserving deployment, clinical observability, compliance audit trails and human-in-the-loop governance. Model drift has to be monitored with a degradation threshold triggering mandatory human review.

LEVEL OF EVIDENCE: Level V.

RevDate: 2026-08-01

Guth MAS (2026)

Targeting TDP-43 in ALS: Regulatory hurdles, trial design deficiencies, and the causal evidence gap for CTx1000.

Drug discovery today pii:S1359-6446(26)00157-1 [Epub ahead of print].

The therapeutic landscape for amyotrophic lateral sclerosis (ALS) has been characterized by decades of clinical trial failures, often attributed to biological heterogeneity, end-point insensitivity, and a profound evidence gap regarding target engagement. With TAR DNA-binding protein 43 (TDP-43) aggregation emerging as a hallmark feature in the vast majority of ALS cases, new precision-medicine modalities - most notably the proteolysis-targeting chimera (PROTAC) CTx1000 - aim to address the underlying causal pathology through selective degradation of mislocalized TDP-43. This review critically evaluates the regulatory hurdles and trial design deficiencies that have historically undermined ALS clinical development, and incorporates the dual sequestration hypothesis as a framework to interpret the convergence of TDP-43 pathology across neurodegenerative diseases. It concludes that it is imperative that the field adopts more rigorous biomarker-led methodologies, and that although target-specific degraders offer a sophisticated technological leap, their success depends on addressing fundamental knowledge gaps in target engagement, age-dependent vector tropism, and trial design architecture.

RevDate: 2026-07-31
CmpDate: 2026-07-31

Bublitz SK, Becker B, Demleitner AF, et al (2026)

Ethical challenges in treatment-goal transitions in invasively ventilated ALS: a case-based topical review.

Neurological research and practice, 8(1):.

INTRODUCTION: In advanced amyotrophic lateral sclerosis (ALS), eye movements often represent the last channel for intentional communication. While oculomotor function has traditionally been considered relatively preserved, emerging evidence indicates progressive impairment in long-term survivors on tracheostomy-invasive ventilation (TIV). As a result, eye-based communication may become increasingly unreliable before complete loss, challenging clinical decision-making and advance care planning (ACP).

METHODS: We conducted a case-based topical review integrating clinical observation and literature to examine the trajectory of oculomotor decline, its impact on communication, and implications for treatment decisions. Three patients with ALS receiving TIV in a home-care setting illustrate key clinical and ethical challenges.

RESULTS: Across cases and literature, oculomotor decline followed a gradual trajectory from effective eye-tracking communication to a complete locked-in syndrome. We identify a transitional phase of communicative ambiguity, in which residual ocular signals persist but can no longer be reliably attributed to intentional, patient-controlled communication. This phase is characterized by increasing inconsistency of signals and a divergence between observable responses and their interpretive certainty, creating uncertainty in assessing patient preferences.

IMPLICATIONS: Communicative ambiguity represents a clinically underrecognized but critical threshold in advanced ALS, marking the transition from direct patient autonomy to interpretative and surrogate-based decision-making. Failure to recognize this phase risks misinterpretation of patient intent and may undermine goal-concordant care. Timely and iterative ACP, initiated before communication becomes unreliable, is essential. We further propose four clinical pathways for treatment goal conversations, highlighting their differing implications for timing, symptom burden, and ethical decision-making.

RevDate: 2026-07-29
CmpDate: 2026-07-29

Kordas B (2026)

Multimodal Assessment of Consciousness with Brain-Computer Interfaces and Artificial Intelligence: From Acquired Brain Injury to Neurodegenerative Disease.

Journal of clinical medicine, 15(14):.

The assessment of consciousness has been shaped largely by research on acquired disorders of consciousness after acute or chronic brain injury, but similar problems of unreliable behavioral expression increasingly arise in neurodegenerative disease. This translational overlap is especially relevant when preserved cognition, awareness, or intentionality cannot be reliably expressed because of severe motor impairment, fluctuating arousal, cognitive decline, aphasia, apraxia, or impaired cooperation. In neurodegenerative disease, degeneration of arousal systems, large-scale brain networks, cognition, and motor pathways may similarly make observable behavior an unreliable measure of awareness. The challenge is not only to determine if a patient responds, but also to ask if residual awareness, intentionality, or covert cognition can still be detected through physiological signals. This review discusses how contemporary modalities reshape this assessment. Electroencephalography has moved from a descriptive measure of background activity to a bedside tool capable of probing event-related responses, network organization, and cortical complexity. Magnetic resonance methods reveal altered connectivity within thalamocortical and default mode network systems, while functional near-infrared spectroscopy adds a portable hemodynamic approach that may be repeated at the bedside and integrated with active paradigms. Brain-computer interfaces provide a translational step by converting neural responses into evidence of command following or, in selected patients, into communication, and artificial intelligence strengthens these approaches by extracting clinically meaningful patterns from complex neural and hemodynamic data. Additionally, autonomic measures, including heart rate variability and baroreflex indices, are considered as auxiliary physiological context for arousal and engagement, and not as direct markers of awareness. Because the most mature evidence for covert awareness and cognitive-motor dissociation comes from acquired disorders of consciousness, this review treats brain injury literature as a methodological foundation instead of as directly interchangeable evidence for neurodegenerative disease. It then examines how these approaches may be adapted to neurodegenerative contexts, especially ALS, severe dementia, Lewy body disease with fluctuating cognition, and conditions in which communication or motor output becomes unreliable.

RevDate: 2026-07-29
CmpDate: 2026-07-29

Abidar S, Nhiri M, V Bianchi (2026)

Suicide in neurodegenerative diseases: a systematic review.

Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology, 47(8):.

BACKGROUND AND OBJECTIVE: Suicide is a public health issue, which differs from suicidality, the continuum from suicidal ideation to the suicidal act, including suicide attempts and completed suicide. The main goal of the present study is to determine the relationship between Alzheimer's disease (AD), Parkinson's disease (PD), amyotrophic lateral sclerosis (ALS), and multiple sclerosis (MS) with suicidality.

METHODS: This is a systematic review aiming to determine the relationship between AD, PD, ALS, and MS with suicidality following PRISMA 2020 guidelines by collecting cross-sectional, case-control, and cohort studies; case series; case reports; and retrospective and prospective studies from Google Scholar, PubMed, and Cochrane Library. The protocol of this systematic review was registered on PROSPERO; the registration number is CRD420261422354.

RESULTS: From 2247 records identified from electronic databases, only 24 articles were included: three studies focusing on AD, nine on PD, and six studies focusing on ALS and MS, respectively. These studies exhibited moderate to low risk of bias. Despite the broad differences regarding the neurochemistry, pathophysiology, diagnosis, symptoms, and treatments of the selected diseases, patients are at a higher risk of suicidality. Depression and low social connectivity are the most prevalent risk factors. Suicidality is mainly detected during the first years post-diagnosis in PD, ALS, and MS patients, while the results in AD are confusing.

CONCLUSIONS: Data about this topic is scarce and largely varying. Further research is required to elucidate this paradigmatic realm, fostering awareness, enhancing therapies, and providing explanations and interpretations of the mechanisms involved.

RevDate: 2026-07-29
CmpDate: 2026-07-29

Balanis T, Doulberis M, R Tutuian (2026)

EUS-guided transmural treatment of afferent loop syndrome: a systematic review and meta-analysis.

Frontiers in gastroenterology (Lausanne, Switzerland), 5:1853386.

BACKGROUND: Afferent loop syndrome (ALS) is an uncommon but clinically relevant complication after pancreaticobiliary or upper gastrointestinal reconstruction, most often in patients with recurrent malignant disease. Endoscopic ultrasound-guided creation of a transmural bypass, either as gastroenterostomy or enteroenterostomy, has emerged as a minimally invasive alternative to surgery or percutaneous drainage. We aimed to systematically review the available evidence and provide a pooled descriptive analysis of the efficacy and safety of EUS-guided treatment for ALS.

METHODS: A systematic review was performed in accordance with PRISMA principles. PubMed/MEDLINE, Embase and the Cochrane Library were searched up to 15 May 2025 for studies reporting EUS-guided gastroenterostomy or enteroenterostomy for ALS. Case reports, case series and observational studies with extractable outcome data were eligible. Data on study design, indication, stent type, technical success, clinical success, adverse events and follow-up were extracted and synthesized.

RESULTS: Twelve studies involving 134 patients were included. On crude analysis, technical success was achieved in 132/134 patients (98.5%), clinical success in 127/134 (94.8%), and adverse events were reported in 13/134 (9.7%). In the pooled random-effects analysis, the technical success rate was 93.5% (95% CI 87.1-96.8; I²=0%), the clinical success rate was 91.0% (95% CI 84.5-94.9; I²=0%), and the overall adverse-event rate was 14.6% (95% CI 9.1-22.5; I²=0%). Adverse events were mainly procedure-related pain, fever, stent misdeployment, peritonitis or intra-abdominal infection. Electrocautery-enhanced lumen-apposing metal stents were used in most studies, whereas fully covered self-expandable metal stents were used in a smaller subset. Reported follow-up ranged from 1 to 15 months.

CONCLUSIONS: EUS-guided transmural bypass represents a promising, minimally invasive, and technically feasible alternative for the management of ALS. However, given the retrospective nature and small sample sizes of the available evidence, larger comparative trials are warranted to define its definitive role.

RevDate: 2026-07-28

Alanazi SM, Al-Kuraishy HM, Alexiou A, et al (2026)

Isoform-selective HSP90 inhibition as a precision therapeutic strategy for neurodegenerative and metabolic diseases.

Progress in neuro-psychopharmacology & biological psychiatry, 149:111834 pii:S0278-5846(26)00232-0 [Epub ahead of print].

Heat shock protein 90 (HSP90) is a central regulator of cellular proteostasis, coordinating the folding, stabilization, and turnover of a wide range of client proteins in the cytosol, endoplasmic reticulum, and mitochondria. Accumulating evidence indicates that the four HSP90 paralogs HSP90α, HSP90β, GRP94, and TRAP1 have distinct pathological roles in neurodegenerative and metabolic diseases. In neurodegenerative disorders, including Alzheimer's disease, Parkinson's disease, Huntington's disease, and amyotrophic lateral sclerosis, aberrant HSP90 activity contributes to the persistence of toxic protein conformers, defective autophagy, mitochondrial dysfunction, and chronic neuroinflammation. In metabolic disorders such as obesity, type 2 diabetes, and metabolic dysfunction-associated steatotic liver disease, GRP94- and TRAP1-dependent signaling promotes endoplasmic reticulum stress, impaired mitochondrial metabolism, insulin resistance, and inflammatory remodeling. These mechanistic insights have accelerated the development of a new generation of HSP90 inhibitors with improved selectivity, tissue targeting, and brain penetration. Unlike earlier pan-HSP90 inhibitors, these compounds are designed to exploit paralog-specific vulnerabilities and may enable safer long-term modulation of disease-relevant chaperone networks. This review summarizes current advances in the biology and pharmacology of HSP90 paralogs and proposes isoform-selective HSP90 targeting as a promising therapeutic strategy at the intersection of neurodegeneration and metabolic dysfunction.

RevDate: 2026-07-28

Avitabile A, Rusciano D, Amato R, et al (2026)

Sex-Dependent Brain Plasticity in Neurological Disease: From Biological Variability to Adaptive, Compensatory, and Maladaptive Trajectories.

Biology, 15(14): pii:biology15141176.

Brain plasticity is often described as the capacity of the nervous system to change in response to development, experience, injury, disease, or treatment. That definition is useful, but it can obscure two clinically important points: plasticity is biologically constrained, and change is not always beneficial. This narrative review examines sex-dependent brain plasticity as a context-sensitive process rather than as a simple male-female contrast. We distinguish four operational outcomes of plasticity: (i) reparative plasticity, which restores structure or function; (ii) compensatory plasticity, which preserves performance through alternative or more costly strategies; (iii) insufficient plasticity, in which reorganization is too weak or unstable to sustain function; and (iv) maladaptive plasticity, in which plastic change reinforces dysfunction, pain, excitability, rigidity, or decline. We also define adaptive reserve as the integrated capacity of neural, glial, vascular, immune, metabolic, endocrine, and gene-regulatory systems to support useful reorganization under stress. The review evaluates endocrine, synaptic, neuroimmune, mitochondrial, vascular, stress-related, and epigenetic mechanisms, indicating where evidence for sex-dependent effects is relatively strong and where it remains indirect, inconsistent, or context-dependent. Disease examples include autism spectrum disorder, attention-deficit/hyperactivity disorder, epilepsy, intellectual disability, Alzheimer's disease, Parkinson's disease, amyotrophic lateral sclerosis, Huntington's disease, traumatic and ischemic injury, multiple sclerosis, chronic pain, aging, and systemic metabolic or inflammatory disorders. Throughout, biological sex is separated from gender-related social, diagnostic, and health-care determinants. We conclude that therapeutic strategies should not aim simply to enhance plasticity, but to guide it by matching intervention, timing, dose, biological readiness, and monitoring to the patient's adaptive state.

RevDate: 2026-07-28

Korošec T, Rogelj B, V Župunski (2026)

LINE-1 Retrotransposons and Amyotrophic Lateral Sclerosis.

International journal of molecular sciences, 27(14):.

Amyotrophic lateral sclerosis (ALS) is a fatal neurodegenerative disease characterized by the progressive degeneration of upper and lower motor neurons. While monogenic causes account for a minority of cases, in most cases, ALS is sporadic and likely arises from multilayer interactions of genetic architecture, aging-associated loss of genome regulation, and inflammatory stress. Long interspersed nuclear element-1 (LINE-1) retrotransposons are endogenous mobile elements that are tightly controlled through various cellular mechanisms under normal conditions. When abnormally active, they are involved in gene inactivation, expression regulation, and genomic instability, leading to cellular processes such as innate immunity and cell death. Here, we present mechanistic links between LINE-1 and ALS. These include evidence that the burden of retrotransposition-competent LINE-1s (RC-L1s) is increased in ALS genomes, positioning RC-L1 load as a candidate contributor to missing heritability in sporadic disease. We also integrate emerging data showing that LINE-1 RNA can be intrinsically toxic independently of new insertions, as it promotes chromatin opening and transcriptional epigenetic noise, particularly when nuclear RNA surveillance pathways fail in TDP-43 pathology. Finally, we review how LINE-1-derived DNA/RNA intermediates can engage innate immune sensors, highlighting the cGAS-STING axis as a plausible route from LINE-1 de-repression to neuroinflammation. Together, these concepts support a model in which genetic RC-L1 load and age-/pathology-driven LINE-1 de-repression converge on nuclear dysfunction and inflammatory amplification, suggesting concrete molecular nodes for therapeutic intervention.

RevDate: 2026-07-28

Podshivalova ES, Kutsev SI, AV Shestopalov (2026)

The Kynurenine Pathway: Unraveling Its Role in Neurological Disorders via Mammalian Cellular Models.

International journal of molecular sciences, 27(14):.

The kynurenine pathway (KP) constitutes the primary route of tryptophan catabolism, generating a spectrum of neuroactive metabolites that profoundly influence central nervous system function. Dysregulation of the KP is increasingly recognized as a critical pathogenic mechanism underlying diverse neuropathological conditions. This review critically evaluates the most widely cited mammalian cellular models currently utilized to delineate the causal role of KP alterations in neurological disease. Specifically, this article examines primary cell cultures, immortalized and tumor-derived cell lines, stem cell-derived systems, and ex vivo organotypic brain slices and tissues, highlighting their distinct methodological advantages, translational limitations, and specific enzymatic profiles. Across the described cellular systems, a recurring mechanistic theme emerges: quinolinic acid-driven mitochondrial dysfunction, oxidative stress, and NAD+ depletion converge in neurodegenerative conditions such as Alzheimer's disease, Huntington's disease, and amyotrophic lateral sclerosis. Conversely, kynurenic acid exhibits disorder-dependent-and at times opposing-roles, attenuating dopaminergic neurotoxicity in Parkinson's disease models while contributing to synaptic pruning deficits in schizophrenia models. Furthermore, cellular models demonstrate that IDO1/TDO induction and downstream metabolite shifts are frequently cell type- and species-dependent, complicating direct extrapolation to human pathology. Because no single experimental system achieves complete physiological fidelity, elucidating the complex dynamics of the KP and identifying novel therapeutic targets requires the integration of data across complementary platforms.

RevDate: 2026-07-28

Yogi S, A Singh (2026)

Molecular Mechanisms of Neurodegenerative Diseases: Emerging Biomarkers and Therapeutic Targets.

Brain sciences, 16(7): pii:brainsci16070675.

Neurodegenerative diseases (NDs), such as Alzheimer's disease (AD), Parkinson's disease (PD), Amyotrophic lateral sclerosis (ALS), and Huntington's disease (HD), involve the gradual loss of structure or function of neurons in the nervous system and are an increasing threat to the aging population worldwide. Although these disorders have different clinical features which affect cognition, movement and other vital body functions, they share key underlying molecular and cellular processes. This starts with protein misfolding and aggregation, mitochondrial dysfunction, oxidative stress, dysregulated protein homeostasis, neuroinflammation, and disrupted cell death pathways. Recent findings have added disease-specific processes, like amyloid-β and tau aggregates in AD, α-synuclein aggregation and mitophagy failure in PD's, TDP-43-related impaired RNA metabolism in ALS, and mutant huntingtin causing transcription aberrations in HD. Protein interactome network analysis showed mechanistic crosstalk between pathogenic proteins of AD and PD. New evidence highlights how lysosomal dysfunction, endoplasmic reticulum stress, and microglial activation, act as a common axis in neurodegeneration. Advancements in genomics and epigenomics have found shared genetic risk loci and regulatory processes that affect how diseases develop and progress. Simultaneously, new biomarkers like circulating microRNAs, exosome-related pathological proteins, neurofilament light chain, inflammatory cytokines, and microglial activation markers are powering early diagnosis tools and disease variations. New imaging techniques also allow for the identification of protein aggregations before symptoms appear. Overall, these findings are accelerating targeted treatments and personalized medicine aimed at disease progression. This review highlights current insights into the molecular mechanisms of NDs and discusses new biomarkers and treatment targets that help future diagnostic and treatment strategies.

RevDate: 2026-07-28

Manzo J, ME Hernández-Aguilar (2026)

Autism and Neurodegeneration: Distinct Disorders or a Shared Biological Continuum?.

Brain sciences, 16(7): pii:brainsci16070766.

BACKGROUND/OBJECTIVES: Autism spectrum disorder (ASD) is traditionally classified as a neurodevelopmental condition, whereas neurodegenerative diseases are defined by progressive neuronal decline in later life. This separation has shaped research and clinical practice, yet emerging evidence suggests potential biological overlap. This review aims to evaluate whether ASD and neurodegenerative disorders represent distinct entities or are linked through shared mechanisms operating across the lifespan.

METHODS: This narrative review synthesizes findings from genetic, molecular, cellular, circuit-level, and epidemiological studies examining ASD and major neurodegenerative conditions, including Alzheimer's disease, Parkinson's disease, and Amyotrophic lateral sclerosis. Emphasis is placed on identifying convergent pathways and evaluating evidence within a lifespan-oriented framework.

RESULTS: Across multiple levels of analysis, ASD and neurodegenerative diseases share partially overlapping biological mechanisms, including mitochondrial dysfunction, impaired proteostasis, neuroimmune alterations, and network-level instability. Genetic and molecular data reveal pleiotropic pathways influencing both early neurodevelopment and later neuronal resilience. Circuit-level studies highlight shared principles of network vulnerability, including cerebellar involvement and excitation-inhibition imbalance. Epidemiological data further indicate increased risk of dementia and parkinsonian features in autistic adults. These convergences suggest that early neurodevelopmental alterations may establish latent vulnerabilities that, under specific conditions, intersect with neurodegenerative processes later in life.

CONCLUSIONS: ASD and neurodegenerative diseases are best understood as distinct clinical conditions that share partially overlapping biological substrates. Rather than implying a deterministic progression, the evidence supports a model of lifespan convergence in which timing, context, and individual susceptibility shape outcomes. This framework highlights the need for integrated research and clinical approaches that consider brain health as a continuous process from development through aging.

RevDate: 2026-07-24
CmpDate: 2026-07-24

Desai KM, Thakkar MD, Somaiya TS, et al (2026)

Neurodegenerative Diseases and Sleep Disorders: The Bidirectional Relationship.

The Medical clinics of North America, 110(5):889-905.

Neurodegeneration is mostly irreversible and progressive. Neurodegenerative diseases (NDDs) represent a large group of disorders that have varied clinical and pathologic representations. These include Alzheimer's disease, Parkinson's disease, vascular dementia, and amyotrophic lateral sclerosis, among others. A common factor in all these NDDs is sleep disorders (SDs). NDDs and SDs are bidirectional. Screening for SDs should be an integral part of a workup of NDDs. Management of one can improve the prognosis of the other.

RevDate: 2026-07-27

Eisen A, Durham HD, E Pioro (2026)

The aging brain that doesn't fail: how neural resilience masks neurodegeneration.

Amyotrophic lateral sclerosis & frontotemporal degeneration [Epub ahead of print].

Neurodegenerative diseases such as amyotrophic lateral sclerosis, Alzheimer's disease, and Parkinson's disease are usually framed as consequences of aging-related pathogenic processes, including impaired proteostasis with protein aggregation, mitochondrial dysfunction, oxidative stress, and neuroinflammation. Yet, most individuals, even into advanced age, do not develop clinically significant neurodegenerative disease. This discrepancy suggests that the nervous system possesses robust and redundant protective mechanisms that maintain neural integrity despite cumulative molecular and cellular stress. In this perspective, we propose that neurodegenerative diseases arise not simply from the presence of pathogenic processes, but when integrated resilience systems fail to maintain homeostasis or when reserve mechanisms no longer compensate for accumulated pathology. We have synthesized a threshold-based model of disease emergence based on evidence across proteostasis, mitochondrial function, neuroimmune regulation, glial biology, network-level compensation, and barrier integrity, while integrating genetic, environmental, developmental, and stochastic modifiers. We distinguish biological resilience, which actively limits or repairs pathology, from reserve, which permits function despite pathology. We further propose that clinical disease emerges only when age-related cumulative stress exceeds the combined capacity of resilience and reserve. Reframing neurodegeneration as a failure of preservation systems offers new directions for prevention and therapeutic development.

RevDate: 2026-07-27
CmpDate: 2026-07-27

Liu B, Zhang L, Lv B, et al (2026)

Copper Homeostasis and Cuproptosis in Neurodegenerative Diseases.

Cells, 15(14): pii:cells15141238.

Copper is an essential trace element required for numerous enzymatic processes in the brain, including mitochondrial metabolism, antioxidant defense, and gene expression regulation. Recent studies have further implicated copper in a newly defined form of regulated cell death termed cuproptosis, providing a mechanistic framework for copper-dependent cytotoxicity. Increasing evidence indicates that copper dyshomeostasis is a common feature of major neurodegenerative diseases, including Alzheimer's disease (AD), Parkinson's disease (PD), and amyotrophic lateral sclerosis (ALS), where it is associated with protein misfolding, redox imbalance, and neuronal vulnerability. Nevertheless, the mechanistic link between copper dysregulation and neuronal cell death remains incompletely defined. In this review, we systematically summarize the molecular mechanisms governing copper homeostasis and intracellular copper trafficking, while providing a timely, updated, and in-depth overview of the mechanistic basis and emerging biology of cuproptosis. We further comprehensively evaluate the current evidence linking copper dysregulation and cuproptosis-related pathways to neurodegenerative diseases, with particular emphasis on distinguishing mechanistic causation from pathological correlation. Importantly, we discuss current therapeutic strategies and emerging clinical efforts targeting copper metabolism, while highlighting the major challenges in defining the pathological significance and mechanistic contribution of cuproptosis in neurodegenerative diseases. Collectively, this review provides an updated framework for understanding the pathological significance and translational potential of cuproptosis in neurodegenerative diseases.

RevDate: 2026-07-27

Gao W, Lee HY, KJ Min (2026)

Aging-Related Metaflammation and Mitochondrial Dysfunction in Neurodegenerative Diseases.

Aging and disease pii:AD.2026.0366 [Epub ahead of print].

Neurodegenerative diseases such as Alzheimer's disease (AD), Parkinson's disease (PD), and amyotrophic lateral sclerosis (ALS) are increasingly recognized as manifestations of aging-associated systemic dysfunction, rather than isolated brain disorders. Central to this dysfunction is the interplay among metaflammation, mitochondrial breakdown, and chronic neuroinflammation. Metaflammation, driven by peripheral metabolic stress, may prime the brain's immune environment through cytokine signaling and blood-brain barrier compromise. This metabolic-inflammatory crosstalk is thought to impair mitochondrial integrity in neurons and glial cells, promoting oxidative stress and the release of pro-inflammatory mitochondrial components. These mitochondrial signals, in turn, may activate microglial and astrocytic innate immune responses, creating a potentially self-reinforcing cycle of neuroinflammation and energy failure that may contribute to neuronal loss. This review outlines a proposed framework linking metaflammation to neurodegeneration, emphasizing shared mechanisms across AD, PD, and ALS. We further examine preclinical and clinical advances in therapeutic strategies that target this axis including anti-inflammatory agents, caloric restriction, mitophagy enhancers, mitochondrial antioxidants, and senescence-targeted therapies. Together, these interventions reflect a shift from symptom management to systemic metabolic and immune modulation, offering a unified framework for understanding and potentially influencing age-related neurodegeneration.

RevDate: 2026-07-27

Sun R, Duan X, Wang X, et al (2026)

R-loops: Biological Functions, Regulatory Mechanisms, and Therapeutic Implications in Brain Diseases-A Review.

Molecular and cellular probes pii:S0890-8508(26)00021-6 [Epub ahead of print].

BACKGROUND: R-loops are three-stranded nucleic acid structures formed by a DNA-RNA hybrid and a displaced single-stranded DNA. They regulate transcription, replication, and DNA repair, but their dysregulation causes genomic instability and inflammation, contributing to brain diseases. The nervous system exhibits selective vulnerability to R-loop stress due to ultra-long gene transcription, post-mitotic longevity, and high metabolic demands.

METHODS: This review synthesizes current literature from PubMed, Scopus, Web of Science, and Embase (2010-2026) on R-loop biology, with a focus on brain-specific mechanisms, regulatory factors (SETX, ZPR1, METTL3, TDP-43/FUS), and disease models.

RESULTS: In neurodegeneration, R-loop accumulation drives repeat expansion disorders (Fragile X, Huntington's disease) and loss-of-function SETX mutations (AOA2), whereas gain-of-function SETX (L389S) causes pathological R-loop depletion in ALS4, disrupting TGF-β signaling. TDP-43/FUS and SMN are integral to R-loop resolution, unifying ALS/FTD and SMA. In brain cancers, METTL3-mediated m[6]A modification of TERRA stabilizes telomeric R-loops in ALT-positive neuroblastoma, creating a therapeutic vulnerability to METTL3 inhibitors (STM2457, STC-15). Glioma stem cells rely on m[6]A-modified circPOLR2B to regulate R-loop formation and malignancy. Clinical-stage agents (EP102, TUG1ASO, ATX-559) and R-loop-derived prognostic signatures (RLPI) are emerging, but translation is hindered by a lack of non-invasive biomarkers and the dual physiological/pathological roles of R-loops.

CONCLUSIONS: R-loops are central to brain disease pathogenesis, offering promising therapeutic targets. Future research should prioritize precision R-loop modulators, non-invasive biomarkers, and combinatorial strategies.

RevDate: 2026-07-24
CmpDate: 2026-07-24

Wang Y, Hu J, Zhu Q, et al (2026)

Emerging Potential of Ras-proximate-1 (Rap1) in Mediating Neurodegenerative Diseases.

Current neuropharmacology, 24(6):804-816.

Neurodegenerative diseases have posed a rising global threat to the aging population, presenting structural and functional impairments in the central nervous system. These progressive disorders, which affect the brain and spinal cord, develop due to the continuous loss of neurons and myelin sheaths. Such specific pathophysiological changes lead to neurological dysfunction in Alzheimer's disease, Parkinson's disease, amyotrophic lateral sclerosis, and Huntington's disease, resulting in typical motor dysfunctions and cognitive disorders, as well as symptoms like behavioral abnormalities and personality changes. To date, despite various treatments attempting to manage these symptoms, patients' quality of life remains severely deteriorated. A few effective therapeutics are available to mitigate the progression of neurodegenerative injuries. Increasing attention is now focused on molecular regulatory mechanisms, particularly the association between immune regulation and the neurovascular unit. A critical component in this process is Ras-proximate-1 (Rap1), a small Guanosine Triphosphatase (GTPase). Rap1 is determined to regulate glia-mediated immunoinflammatory responses, vascular endothelial function, and neuronal activity. It also modulates synaptic plasticity and mitochondrial function via autophagy-dependent modulation, which are significantly impacted during neuronal degeneration. Additionally, signaling pathways, including PI3K/Akt and ERK, are identified as its downstream effectors. Furthermore, by mediating the permeability of the blood-brain barrier, Rap1 probably influences neuroimmune-vascular modulation throughout the development of neurological disorders. In this review, we investigate recent studies to explore the emerging therapeutic potential of Rap1 in the inflammation-related regulation within neurodegenerative diseases. We also discuss novel treatments and possible targets, including natural medicines and genetic modulation, to enhance therapeutic effects and improve prognosis.

RevDate: 2026-07-23
CmpDate: 2026-07-23

Wei Z, Bai L, Liu X, et al (2026)

Histone lactylation-mediated glycolysis-ferroptosis axis in neurological diseases.

Frontiers in molecular neuroscience, 19:1820758.

Histone lactylation is an emerging epigenetic modification that covalently links the glycolytic metabolite lactate to histones, thereby establishing a direct link between cellular metabolic status and gene transcription programs. Recent studies have shown that this modification plays a key role in regulating cellular sensitivity to ferroptosis, forming a novel regulatory axis of "glycolysis-lactylation-ferroptosis." This article systematically reviews the biological functions of histone lactylation in the nervous system, with a focus on elucidating how it participates in the pathological processes of various neurological diseases, including Alzheimer's disease (AD), Parkinson's disease (PD), cerebral stroke, and amyotrophic lateral sclerosis (ALS), by regulating the expression of ferroptosis-related genes. The article integrates the latest research on molecular mechanisms, explores the value of this regulatory axis as a potential biomarker for disease diagnosis and a therapeutic target, and provides an outlook on future research directions in this field.

RevDate: 2026-07-24

Lee JY, Hong S, E Kim (2026)

Soft skills education and training across the nursing continuum: A scoping review.

Nurse education today, 166:107287 pii:S0260-6917(26)00315-1 [Epub ahead of print].

AIMS: Soft skills are essential for safe and effective nursing practice, supporting communication, collaboration, and professional judgment in complex care settings. Despite their importance, new graduate nurses often struggle with core soft skills, highlighting a persistent gap between education and clinical demands. This scoping review maps current evidence on soft skills education and training for nursing students and nurses, focusing on core concepts, teaching approaches, and evaluation methods.

DESIGN: This scoping review was conducted following the PRISMA Scoping Review guidelines.

DATA SOURCES: Five databases-MEDLINE, CINAHL, Embase, Cochrane Library, and PsycINFO-were searched for studies published 2015-2025.

REVIEW METHODS: Eligible studies used experimental designs to deliver soft skill-focused education or training to nursing students or nurses. Data extraction followed the TIDieR checklist, and soft skills were classified using an adapted version of Song et al.'s framework.

RESULTS: Twenty-four studies met the inclusion criteria; most involved nursing students and quasi-experimental designs. Effective Interaction and Professionalism were the most frequently addressed skill domains. Student-focused programs emphasized interpersonal and cognitive skills, whereas nurse programs concentrated on preparedness, work management, and teamwork. Traditional lectures predominated, while participatory and emerging approaches such as virtual reality, escape rooms, and game-based learning were less common. Nurse training was typically single-session, whereas student programs were more longitudinal. Most studies relied on self-report measures and included limited follow-up.

CONCLUSIONS: A distinctive pattern emerged between students and nurses, suggesting that student-focused programs tend to emphasize foundational interpersonal skills while nurse-focused interventions are more likely to address clinically integrated competencies. This gap underscores the need to better align nursing curricula with real-world competency requirements. Educational programs on soft skills should incorporate active, learner-centered teaching strategies, rigorous evaluation methods with long-term follow-up, and validated assessment tools to better prepare nurses for contemporary healthcare demands.

RevDate: 2026-07-22

Shen Z, Q Yu (2026)

Protein arginine methyltransferases as regulators of phase separation: implications in cancer and neurodegenerative diseases.

European biophysics journal : EBJ [Epub ahead of print].

Protein arginine methyltransferases (PRMTs) catalyze arginine methylation, a key post-translational modification (PTM) regulating chromatin organization, RNA metabolism, and signaling. Recent studies reveal that PRMT-mediated methylation also modulates liquid-liquid phase separation (LLPS), which organizes membraneless condensates controlling transcription, stress response, and genome stability. Dysregulated PRMT activity disrupts condensate dynamics, contributing to cancer and neurodegenerative diseases. In cancer, PRMT1, PRMT5, and PRMT6 promote tumor progression via methylation-dependent condensates that enhance oncogenic transcription and stress resistance. In the nervous system, PRMT1, PRMT4, PRMT5, PRMT6, and PRMT8 regulate LLPS of proteins, linking aberrant methylation to ALS and Huntington's disease. This review highlights PRMTs as key modulators of phase separation and potential therapeutic targets in both oncology and neurodegeneration.

RevDate: 2026-07-22

Adams J (2026)

"Hermeneutic burden" and clinical responsibility: a response to Sparrow et al. on explanation and machine learning.

Monash bioethics review [Epub ahead of print].

This paper critically reviews Sparrow et al.'s notion of the "hermeneutic burden" placed upon clinicians by the demand for explainable artificial intelligence (XAI) in the context of adaptive machine learning (ML) systems. While Sparrow et al. highlight important additional labour that may be required of clinicians, this response argues that framing explanation primarily in terms of such a burden obscures its overall ethical significance. This paper therefore offers a supplementary account of the interpretive work associated with XAI in medicine that places it within existing models of the patient-clinician relationship. In particular, Emanuel and Emanuel's influential typology consisting of four models of the patient-physician relationship is used to extract possible justifications for the responsibility to grasp and explain not only patients' values and conditions but also ML outputs. This allows us to distinguish between 'hermeneutic burden' and 'hermeneutic responsibility' and emphasise that explanation in medicine is not an incidental task but part of a clinician's professional role, particularly on 'interpretive' and 'deliberative' models. The paper thus argues that viewing explanation as a hermeneutic responsibility linked to patient autonomy clarifies the ethical significance of XAI in terms of both the grounds and scope of clinicians' responsibilities. At its core, the ethical challenge raised by XAI in clinical practice concerns not only the burdens it may impose on clinicians but also the evolution of clinicians' traditional interpretive duties in the novel context of ML-mediated care.

RevDate: 2026-07-23

Jellinger KA (2026)

Psychiatric disorders in amyotrophic lateral sclerosis: a short note.

Journal of neural transmission (Vienna, Austria : 1996) [Epub ahead of print].

Traditionally, amyotrophic lateral sclerosis (ALS) has been defined as a rapidly progressive neurodegenerative disorder that affects the large motor neurons of the brain and spinal cord. The assumption that ALS is a pure motor disorder has been increasingly challenged by accumulating evidence about an association between ALS and psychiatric disorders. They often precede the onset of motor symptoms or psychoses; hallucinations and schizophrenia may occur as concomitant changes. These non-motor disorders have a close relationship with disease onset or may be related to a larger framework of neuronal network disruptions in motor neuron disorders. The link between ALS and schizophrenia was supported by substantial genetic correlations associating the C9orf72 gene expansion with psychiatric disorders. The genetic correlation between ALS and schizophrenia was estimated to be 14.3% with frequent polygenic risk scores. Increased psychotic symptoms in C9orf72 carriers correlate with atrophy in a distributed cortical and subcortical network that includes multiple cerebral regions. ALS kindreds often present higher rates of psychiatric illnesses, and early schizophrenia is significantly associated with the development of ALS. Further studies should attempt to delineate the risk of psychiatric disorders in C9orf72 kindreds to aid in clinical decision making and genetic counseling, through collaborations between neurology and psychiatry.

RevDate: 2026-07-21
CmpDate: 2026-07-21

Rosenfeld J, Abrahams S, McHutchinson C, et al (2026)

Utility of patient subgrouping in ALS clinical trials: a World Federation of Neurology white paper.

Amyotrophic lateral sclerosis & frontotemporal degeneration, 27(5-6):493-500.

The heterogeneity among the amyotrophic lateral sclerosis (ALS)/MND patient population is well recognized but not well understood. Such heterogeneity may represent a significant confound in our current and prior clinical trials as certain subgroups of patients might have a selective response (or resistance) to a novel therapeutic. The basis on which to segregate the patient population is, however, unclear. The ALS/MND Committee of the World Federation of Neurology (WFN) convened a symposium to discuss various strategies that might be considered for separating (stratifying) the population to further study. The results of that conference are presented here as a white paper, reflecting current understanding of several of the various criteria that could be implemented to divide the patient population as presented and discussed at that meeting. Consideration of grouping patients based on phenotype, cognitive involvement, imaging, or electrophysiology is presented here.

RevDate: 2026-07-21
CmpDate: 2026-07-21

Meyer T, Ticozzi N, Weber M, et al (2026)

ALS motor phenotypes: a revised 'OPM' classification.

Amyotrophic lateral sclerosis & frontotemporal degeneration, 27(5-6):540-552.

BACKGROUND: Defining motor phenotypes in amyotrophic lateral sclerosis (ALS) is important for individualized care and optimal therapeutic trial design. The "ALS-OPM" classification is based on the onset region (O), the propagation of motor symptoms (P), and the degree of clinical upper (UMN) and/or lower (LMN) motor neuron dysfunction (M).

METHODS: An international ALS expert focus group was held in September 2025, followed by a consensus process through which revisions of the OPM classification were finalized.

RESULTS: Onset (O1-4) identifies first motor symptoms as relating to the head (O1), distal/proximal arm (O2d/p), respiratory/axial trunk (O3r/a), or distal/proximal leg (O4d/p). Onset symptoms are defined by weakness or slowed, poorly coordinated voluntary movements in the muscles of the head, arm, trunk, or leg, including dysarthria, dysphagia, dysphonia, dyspnea, and axial instability. Propagation (P1(n)) or absence of propagation (P0(n)) of motor symptoms from the onset region to another body region are designated, where n denotes the number of months from onset to propagation or assessment. The degree of UMN dysfunction (slowed, poorly coordinated voluntary movements, hyperreflexia and/or spastic muscle tone, emotional lability) and/or LMN dysfunction (weakness with associated muscle atrophy) is classified as follows: balanced UMN and LMN dysfunction (M0); dominant (M1d) or pure UMN dysfunction (M1p); dominant (M2d) or pure LMN dysfunction (M2p); and dissociated UMN/LMN dysfunction (M3), in which the arms and legs predominantly show LMN and UMN involvement, respectively.

CONCLUSION: The revised ALS-OPM classification aims to make it routine, practical and feasible to capture phenotype in clinical practice and therapeutic trials.

RevDate: 2026-07-21
CmpDate: 2026-07-21

Kiernan MC, Genge A, Grosskreutz J, et al (2026)

The World Federation of Neurology Specialty Group in ALS/MND: toward strategic partnership and new frontiers.

Amyotrophic lateral sclerosis & frontotemporal degeneration, 27(5-6):501-503.

A memorandum of understanding was recently established between the World Federation of Neurology Specialty Group and the International Alliance of ALS/MND Associations. This new strategic partnership brings together leading clinicians and researchers with national and regional organizations dedicated to supporting ALS patients, their families, and caregivers. The purpose of partnership is to strengthen global coordination in research, education, advocacy, and clinical care for people living with MND. The agreement outlines shared priorities, including promoting equitable access to diagnosis and treatment, supporting capacity building in low- and middle-income regions, and facilitating the exchange of scientific knowledge and best practice. Both parties commit to joint initiatives such as international meetings, guideline development, clinical trials and data-sharing efforts that advance understanding of disease mechanisms and therapeutic approaches. Together, these organizations represent the scientific and human dimensions of the ALS challenge. Through partnership, the WFN Specialty Group and the International Alliance aim to accelerate progress toward improved outcomes and, ultimately, effective treatments for MND worldwide.

RevDate: 2026-07-22

Pattnaik PP, Prusty SK, Pati S, et al (2026)

Exploring shared genetic pathways and gene interplay in major neurodegenerative diseases: a comprehensive review.

Gene, 1010:150318 pii:S0378-1119(26)00328-8 [Epub ahead of print].

Neurodegenerative diseases are progressive disorders that involve the loss and dysfunction of neurons. Alzheimer's disease, Parkinson's disease, Amyotrophic lateral sclerosis, Huntington's disease, Frontotemporal dementia are examples of diseases. While different clinically, these disorders have a common genetic, molecular and cellular basis. This review examines the common genetic pathways, along with the interactions between genes of major neurodegenerative diseases, with a focus on the key genes, such as APOE, SNCA, MAPT, TARDBP, LRRK2 and HTT. The common pathogenic mechanisms considered to play a major role in disease progression include protein misfolding and aggregation, mitochondrial dysfunction, oxidative stress, neuroinflammation, diminished autophagy, and impaired lysosomal function, as well as synaptic degeneration. The review also emphasizes the role of systems biology strategies, such as genome-wide association studies, transcriptomics, proteomics, metabolomics, interactome analysis, and multi-omics integration, to unveiling complex molecular networks in neurodegeneration. Furthermore, the emerging biomarker strategies and therapeutic strategies targeting convergence signaling pathways including NF-κB, PI3K-Akt-mTOR, MAPK and Wnt/β-catenin are summarized. The common genetic basis and the cross-connecting molecular mechanisms of the various neurodegenerative diseases could help in the discovery of new biomarkers and pan-therapeutic targets. Further advances in molecular genetics, computational biology and precision medicine are needed to enhance early detection and the creation of effective disease-modifying treatments.

RevDate: 2026-07-21

Sahin U, EN Firat-Karalar (2026)

The centrosome-cilium-centriolar satellite axis in neurodegenerative diseases.

EMBO reports [Epub ahead of print].

Neurodegenerative diseases (NDDs), including Alzheimer's disease, Parkinson's disease, Huntington's disease, amyotrophic lateral sclerosis, and hereditary ataxias, remain major global health challenges with limited therapeutic options. Although clinically and genetically diverse, these diseases share extensively studied cellular and molecular hallmarks, including protein aggregation, impaired proteostasis, cytoskeletal abnormalities, altered energy metabolism, nucleic acid damage, and chronic inflammation. Emerging evidence indicates that dysfunction of the centrosome-cilium-satellite axis intersects with these established pathways in disease- and cell type-specific contexts. This axis, composed of centrosomes, primary cilia, and centriolar satellites, coordinates cytoskeletal organization, ciliary signaling, trafficking, proteostasis, and stress responses and acquires specialized functions in neurons that support polarity, connectivity, and long-term maintenance. In this review, we outline the structure, function, and neuronal specializations of the centrosome-cilium-satellite axis, then examine how its dysfunction has been reported in neurodegenerative disease models. We also discuss centriolar satellites as regulators of centrosome and cilium biology whose disease-specific roles in classical NDDs remain comparatively underexplored, with insights from Huntington's disease and schizophrenia. Finally, we discuss therapeutic strategies aimed at restoring axis structure and dynamics, modulating ciliary signaling, and correcting disease-linked genetic or transcript-level defects, emphasizing mechanism-based approaches that require validation in disease-relevant models. Together, the centrosome-cilium-satellite axis provides an emerging framework for understanding context-dependent organelle dysfunction in neuronal vulnerability and neurodegeneration.

RevDate: 2026-07-21
CmpDate: 2026-07-21

Essa SM, Khosa NA, Kakar A, et al (2026)

Unraveling the Potential of Stem Cell Therapy in Motor Neuron Disease: A Narrative Review.

CNS & neurological disorders drug targets, 25(6):403-415.

Motor neuron disorders (MNDs), including ALS, are deadly neurodegenerative conditions that cause progressive motor neuron degeneration. With neuroprotection and the potential for neuron regeneration employing MSCs, ESCs, iPSCs, and NSCs, stem cell treatment presents a viable alternative to current medicines, which only control a limited number of symptoms. Following PRISMA criteria, this narrative review methodically screened 1248 records from the Cochrane, Web of Science, PubMed, and Scopus databases. Following a thorough screening process, 22 studies, including preclinical models and 19 clinical trials, were analysed to assess the therapeutic mechanisms, safety, and efficacy of stem cell therapies for MNDs. Mesenchymal stem cell (MSC) therapy has shown a promising safety profile and possible therapeutic efficacy in ALS, with no substantial transplant-related toxicity noted. ALS functional rating scale-revised (ALSFRS-R) scores and forced vital capacity (FVC) assessments from clinical trials, such as those evaluating autologous bone marrow-derived MSCs, demonstrated stabilisation in ALS development. Studies have also emphasised as to how immunomodulation and neurotrophic factors play a part in MSC-based therapies. Recent data indicate that repeated intrathecal MSC injection could extend the duration of therapeutic advantages. Clinical trials have shown safety and early efficacy signals for motor neurons produced from embryonic stem cells (ESCs), especially using AstroRx®. This suggests that ESCs could be a viable option for regenerative medicine. Nonetheless, issues, like host integration and differentiation optimisation, still exist. Although clinical translation is still in its early stages, induced pluripotent stem cells (iPSCs) and their derivatives provide disease modelling and patient-specific therapeutic applications. Stem cell therapy holds promise for treating MND, with MSCs leading the way in current trials. It is necessary to enhance ESC- and iPSC-based techniques to tackle integration issues. To ensure long-term safety and efficacy, therapies must be developed using standardised protocols, patient stratification, optimised delivery, and large-scale studies.

RevDate: 2026-07-18

Barrera-Chamorro L, Gonzalez-de la Rosa T, Arzalluz-Luque J, et al (2026)

Sustainable next-generation prebiotics for brain health: microbiota-gut-brain axis in neurodegenerative and demyelinating diseases.

Critical reviews in food science and nutrition [Epub ahead of print].

Neurodegenerative and neuroinflammatory diseases, including Alzheimer's disease, Parkinson's disease, amyotrophic lateral sclerosis, and multiple sclerosis, are increasingly associated with disruption of the microbiota-gut-brain axis. Common alterations include reduced beneficial microbial taxa, impaired short-chain fatty acid production, intestinal and blood-brain barrier dysfunction, and sustained inflammatory responses. These findings support the development of microbiota-targeted dietary interventions. This review summarizes current evidence on polyphenols, bioactive peptides, and pectin-derived oligosaccharides (POS) as prebiotic or prebiotic-like compounds with potential activity through the microbiota-gut-brain axis. Particular attention is given to structure-function relationships, host-microbe interactions, and the sustainable recovery of these compounds from food by-products. Preclinical studies suggest that these bioactives may reduce microglial activation, improve mitochondrial function, strengthen intestinal and blood-brain barrier integrity, and enhance cognitive or motor performance. Early clinical studies also indicate possible benefits on mood, selected cognitive outcomes, metabolic regulation, and inflammatory biomarkers, although evidence remains limited. Microbiota-derived metabolites from polyphenols, such as urolithins, together with glycomacropeptide and POS, appear to be key mediators. However, clinical validation in major neurodegenerative diseases remains fragmented. Standardized formulations, mechanistic trials, harmonized endpoints, and precision-nutrition strategies are required to confirm their therapeutic potential.

RevDate: 2026-07-20
CmpDate: 2026-07-20

Zheng Y, Bhalala OG, Chin KS, et al (2026)

Use of blood-based neurofilament light chain as an endpoint in clinical trials of neurodegenerative conditions: a scoping review.

Journal of neurology, 273(8):.

INTRODUCTION: Neurofilament light chain (NfL) is a structural axonal protein measurable in CSF and blood, increasingly investigated as a biomarker of neuroaxonal injury in clinical and research contexts. This review aims to explore the use of blood-based NfL as an endpoint in clinical trials of neurodegenerative conditions.

METHOD: A database search of MEDLINE and EMBASE was conducted to identify interventional clinical trials and/or related post hoc analyses for neurodegenerative diseases, published between 2013 and 2024 that reported the use of serum or plasma NfL as an endpoint. Additional studies from reference lists of included trials were manually considered for inclusion where relevant. Data were charted descriptively by disease type and summarised.

RESULTS: 49 studies were included, 29 in multiple sclerosis (MS), eight in amyotrophic lateral sclerosis (ALS), six in Alzheimer's disease (AD), and six in other diseases. Across studies, reductions in NfL often paralleled improvements in primary efficacy outcomes, supporting its use as a biomarker of disease activity and treatment response. However, several studies demonstrated a lack of concordance between change in NfL and in clinical outcomes, some of which may be related to the non-disease-modifying mechanisms of the interventions studied. This necessitates careful consideration when applying blood-based NfL as a biomarker endpoint for studies involving such interventions.

CONCLUSION: Blood NfL is a promising biomarker with potential utility as a surrogate endpoint in neurological clinical trials, particularly for diseases with active axonal injury. Further validation, particularly around disease- and intervention-specific interpretation, is needed before blood NfL can be incorporated more routinely as a clinical endpoint.

RevDate: 2026-07-17

Halabian N, Park C, Omoto L, et al (2026)

Focused ultrasound blood brain barrier opening for targeted therapeutics in neurodegenerative diseases.

Biological psychiatry pii:S0006-3223(26)01399-5 [Epub ahead of print].

Therapeutic focused ultrasound (FUS) leverages the non-invasive ultrasonic waves to modify the biological tissue. When administered alongside intravenous microbubbles, low-intensity FUS enables transient, targeted disruption of the blood-brain barrier (BBB), permitting passage of systemically administered therapeutics into the central nervous system (CNS) with high spatial precision. The ability to selectively modulate BBB permeability at the disease site has the potential to substantially expand the number of therapeutics that can be utilized in treating illnesses afflicting the CNS. Herein, we review the current applications of FUS for treating neurodegenerative disorders and diseases, including Alzheimer's disease (AD), Parkinson's disease (PD), and Amyotrophic lateral sclerosis (ALS). We discuss the research developments to date and future directions.

RevDate: 2026-07-16
CmpDate: 2026-07-16

Majumdar S, Samaiya PK, Ahmed S, et al (2026)

Imaging biomarkers in neurodegenerative diseases: advances and challenges.

Frontiers in aging neuroscience, 18:1813588.

Neurodegenerative diseases (NDDs), including Alzheimer's disease (AD), Parkinson's disease (PD), frontotemporal dementia (FTD), and amyotrophic lateral sclerosis (ALS), represent a major global health burden. Imaging biomarkers have emerged as important tools for improving the diagnosis, monitoring, and biological characterization of neurodegenerative diseases. Structural MRI, diffusion tensor imaging (DTI), functional MRI (fMRI), positron emission tomography (PET), hybrid PET/MRI and molecular imaging have transformed our ability to investigate neurodegeneration in vivo non-invasively. This review highlights updated information on how each imaging modality offers a unique window into different disease pathophysiology including regional atrophy, amyloid-β, tau, dopaminergic terminal degeneration, synaptic density (SV2A), and neuroinflammation. We also focused on the translational and evidence supporting biomarkers, appropriate use criteria for amyloid and tau PET imaging, and standardized quantification methods such as the Centiloid scale. The growing role of multimodal fusion, where imaging is increasingly integrated with scalable fluid biomarkers to enable "blood-first" strategies where high-risk patients are selectively referred to advanced imaging, improving feasibility and equity. Despite tremendous progress, there are still issues with their standardization, sensitivity, specificity, and clinical translation. Moreover, the review emphasizes the frontiers of α-synuclein and glial state-specific PET ligands, advanced diffusion models, and dynamic connectivity analysis to support precision medicine and mechanism-based trial design for NDDs.

RevDate: 2026-07-16
CmpDate: 2026-07-16

Hu M, You L, Zhang X, et al (2026)

Experimental evidence of electroacupuncture in ALS mouse models: a systematic review and meta-analysis.

Frontiers in neurology, 17:1780176.

OBJECTIVE: This study aimed to systematically evaluate the therapeutic efficacy of electroacupuncture (EA) in amyotrophic lateral sclerosis (ALS) and to elucidate the underlying neurobiological mechanisms by synthesizing preclinical evidence.

METHODS: According to the PICOS principle, relevant studies were searched in the following databases: PubMed, Web of Science, Embase, Cochrane Library, Scopus, and CNKI. Search terms and strategies were determined based on MeSH terms. The methodological quality of the included studies was assessed using the SYRCLE's Risk of Bias tool and the CAMARADES checklist. Meta-analysis was performed using Stata 15.0 and Rstudio software.

RESULTS: Seventeen studies involving 372 animals were included. The quality scores of the included studies ranged from 5 to 8, with an average score of 7. The meta-analysis of the primary outcome, the rotarod test score, showed a significant improvement in the EA group compared to the control group [SMD = 3.31, 95% CI (2.05, 4.57), Z = 5.151, p < 0.001], indicating that EA can enhance motor function in ALS mice. Regarding secondary outcomes, EA intervention alleviated neuroinflammation, promoted neuronal survival, improved axonal regeneration inhibition, and stabilized RNA metabolism homeostasis. Consequently, it slowed disease progression, improved motor performance, prolonged survival time, and effectively protected motor neurons at the histopathological level (p < 0.05). These findings underscore the potential of EA as a promising multimodal therapeutic strategy for ALS. For the heterogeneity observed in the rotarod test, sensitivity analysis, subgroup analysis, and meta-regression did not identify its source. However, potential publication bias was detected, which might contribute to the heterogeneity. The heterogeneity for other outcome measures might originate from differences in stimulation parameters (e.g., waveform), acupoint selection, or treatment duration.

CONCLUSION: This meta-analysis demonstrates that EA confers significant neuroprotective benefits in preclinical ALS models, primarily through multi-target modulation of key pathological processes such as neuroinflammation, aberrant cell death signaling, and RNA metabolism. These preclinical findings underscore the potential of electroacupuncture as a complementary neuroprotective strategy and warrant further investigation in rigorous clinical trials.

https://www.crd.york.ac.uk/PROSPERO/view/CRD420251229183.

RevDate: 2026-07-17

Barker-Jones B, Navvuga P, Baji P, et al (2026)

Comparing User-Written Codes for Performing Economic Evaluations in Stata.

PharmacoEconomics [Epub ahead of print].

BACKGROUND: Several user-written Stata codes exist for trial-based economic evaluations, but they lack assessment and guidance. This study aimed to identify and compare publicly available user-written Stata codes for trial-based economic evaluations.

METHODS: A focused literature search of Ovid Medline, SSC Archive, The Stata Journal and Google Scholar was conducted to identify relevant codes to June 2025. Codes were applied to data from two clinical trials, both featuring missing data and covariate adjustment. Codes were compared in terms of their ability to estimate key economic parameters and produce graphical outputs and functionality in handling four common statistical challenges: correlated costs and effects, covariate adjustment, skewed costs and effects, and missing data.

RESULTS: We identified eight codes reported in four publications: codes for assessing health economic agreement (Gallacher et al.), sampling uncertainty for cost-effectiveness analysis (Glick et al.) and codes addressing missing data (Mutubuki et al. and Faria et al.). Gallacher et al.'s codes reported lower incremental quality-adjusted life years (QALYs) and net monetary benefit than Glick's et al.'s codes. Mutubuki et al. and Faria et al.'s codes produced comparable incremental costs and QALYs, though Faria et al. yielded wider confidence intervals in cost estimates.

DISCUSSION: Differences in estimates across statistical approaches show that code choice can influence economic evaluation results. Some codes were better suited for generating basic economic outputs, whereas others provide more comprehensive analyses or address specific statistical challenges including missing data. However, no single code provided all key outputs while addressing the main statistical challenges.

RevDate: 2026-07-17

Hassan MA, Al Amin M, Sweilam SH, et al (2026)

Resveratrol and neuroprotection: modulation of cellular dynamics and signaling networks in neurodegenerative diseases.

Inflammopharmacology [Epub ahead of print].

Progressive loss of neurons, oxidative stress, neuroinflammation, and mitochondrial dysfunction are hallmarks of neurodegenerative diseases (NDs), such as Alzheimer's disease (AD), Parkinson's disease (PD), Huntington's disease (HD), and amyotrophic lateral sclerosis (ALS). Resveratrol, a polyphenolic phytoalexin mainly found in grapes and red wine, is a promising treatment candidate due to its diverse biological effects and neuroprotective properties. This review demonstrates the regulatory effects of resveratrol on cellular signaling pathways linked to NDs and its neuroprotective mechanisms. Resveratrol enhances neuronal survival, boosts mitochondrial biogenesis, and mitigates oxidative stress by affecting key molecular pathways, including SIRT1/AMPK, PI3K/Akt, MAPK, and Nrf2/ARE. The PI3K/Akt and ERK1/2 pathways promote neuronal regeneration by modulating pro-apoptotic and anti-apoptotic factors. Resveratrol inhibits NF-κB, reducing cytokine release and microglial activation, thereby exhibiting anti-inflammatory properties. It improves cognitive function, synaptic plasticity, and neuronal survival. Despite an increasing pharmacological profile, its practical applicability is limited by inadequate bioavailability, rapid metabolism, and restricted brain penetration. This review demonstrates resveratrol's effect on interconnected signaling networks related to neurodegeneration. We critically compare evidence from preclinical and clinical studies, demonstrating both therapeutic potential and translational limitations. Emerging nanotechnology-based delivery strategies are demonstrated to overcome bioavailability and blood-brain barrier penetration challenges. These insights provide a translational perspective for the future development of resveratrol-based interventions in NDs.

RevDate: 2026-07-16

Bolsinger MM, Vivek N, Singh J, et al (2026)

Extracellular vesicles as a liquid biopsy for amyotrophic lateral sclerosis: a systematic review and meta-analysis.

Journal of translational medicine pii:10.1186/s12967-026-08562-8 [Epub ahead of print].

Amyotrophic lateral sclerosis (ALS) is a fatal neurodegenerative syndrome diagnosed clinically using standardized criteria, with neuropathological confirmation of motor neuron loss and TDP-43 aggregates in postmortem brain tissue. Extracellular vesicles (EVs) have emerged as potential minimally invasive biomarkers for ALS, but studies vary widely in methodology and reproducibility. We conducted a systematic review and meta-analysis to evaluate the diagnostic potential of EV-associated proteins and RNAs in ALS. Following PRISMA guidelines, we searched PubMed and EMBASE from inception to May 21st, 2026. Forty-one studies met inclusion criteria. Where published summary statistics were available, these were used directly; where they were not, data were reconstructed from figures or obtained from authors and re-analyzed to derive standardized effect sizes and exploratory diagnostic accuracy estimates. Random-effects models were used for continuous outcomes, and diagnostic accuracy was assessed using hierarchical summary ROC and bivariate random-effects models. Publication bias was evaluated using Begg, Egger, and funnel plots. EV-associated TDP-43 was the most frequently studied protein. Meta-analysis of five studies showed a moderate but non-significant increase in EVs from ALS vs. controls (SMD = 1.30) with high heterogeneity (I = 97.8%). Sixteen studies assessing EV-RNA biomarkers showed minimal overlap and limited independent replication. Diagnostic accuracy meta-analysis across 11 studies yielded moderate performance (AUC = 0.839). No publication bias was found across both meta-analyses. EV biomarkers for ALS show biological promise but are limited by methodological variability and insufficient replication. This work highlights the need for standardized protocols, transparent data sharing, and independent validation.

RevDate: 2026-07-16

Wang H, Wen R, Parker E, et al (2026)

TREM2 in neurodegenerative diseases and acute neurological injuries: mechanisms to targeted therapies.

Cell communication and signaling : CCS pii:10.1186/s12964-026-03083-9 [Epub ahead of print].

Triggering receptor expressed on myeloid cells 2 (TREM2) is a critical myeloid receptor expressed on the surface of central nervous system microglia, capable of integrating signals from lipids, damage-associated molecular patterns, and abnormal protein aggregates to regulate phagocytosis, metabolic adaptation, inflammatory remodeling, and pathology-associated responses. Accumulating evidence indicates that TREM2 is neither uniformly protective nor uniformly pathogenic; rather, its biological effects are highly context-dependent, governed collectively by disease stage, pathological substrates, cellular compartments, and the local microenvironment. By coupling with TYROBP/DAP12 or DAP10, TREM2 actively drives the state remodeling of pathology-associated microglia. It profoundly influences the onset and progression of neurodegenerative diseases, such as Alzheimer's disease (AD), Parkinson's disease (PD), multiple sclerosis (MS), and amyotrophic lateral sclerosis (ALS), as well as acute central nervous system injuries, including ischemic stroke, spinal cord injury (SCI), and traumatic brain injury (TBI). Concurrently, soluble TREM2 (sTREM2) holds significant potential not only as a biomarker but also as a context-dependent effector molecule actively participating in pathological regulation. This review synthesizes current advancements by focusing on four core themes: the structural and signaling logic of the TREM2 axis; its regulation of disease-associated microglia (DAM) remodeling; the cross-disease significance of sTREM2; and the mechanistic basis for the divergent outcomes observed with TREM2-targeted therapies across different experimental models and disease stages. The objective is to elucidate the context-dependent roles of TREM2 by analyzing consensus mechanisms, sources of discrepancy, and translational implications, thereby providing a theoretical framework and strategic direction for more precise TREM2-targeted interventions.

RevDate: 2026-07-14
CmpDate: 2026-07-14

Addington C, Davies N, Howell P, et al (2026)

Lived experiences of cancer care for people living with HIV who are treated for anal cancer: a scoping review.

BMJ open, 16(3):e114180.

OBJECTIVE: This scoping review aims to identify existing evidence on the lived experiences of people living with HIV and treated for anal cancer, and to identify what aspects of health and well-being are addressed in clinical guidance.

DESIGN: A preregistered protocol (Open Science Framework, 2025) guided the review. We followed the Arksey and O'Malley framework, incorporating Levac et al's refinements around stakeholder consultation. Joanna Briggs Institute (JBI) guidance informed eligibility and data for charting, and reporting adhered to Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews guidelines.

DATA SOURCES: Systematic searches were performed across multiple databases, including CINAHL, MEDLINE, PsycINFO and Embase, using EBSCOhost and Ovid, supplemented handsearching reference lists. Two search strategies were used: one for research studies and one for clinical guidelines.

ELIGIBILITY CRITERIA: Sources included people living with HIV treated for anal cancer, capturing lived experiences directly through qualitative studies or indirectly via quantitative patient-reported outcomes and/or health-related quality of life. Guidelines addressing HIV or anal cancer were also included.

DATA CHARTING AND SUMMARIES: Data were charted to capture patient experiences and outcomes on living with and beyond cancer, and how these are addressed in clinical management and guidance, including biomedical, psychosocial, sexual and functional aspects, and patient-reported outcomes.

RESULTS: Of 945 records, three studies and four guidelines met criteria. No study focused exclusively on people living with HIV; findings reflect broader anal cancer populations with HIV-positive subsets. Studies addressed aspects of health-related quality of life which we mapped into physical, psychosocial and sexual domains. Clinical guidance prioritised treatment dosage and survival, with limited attention to broader effects. Stakeholders highlighted that existing research and guidance miss important nuances of lived experience and care needs.

CONCLUSIONS: No identified research solely explored the lived experiences of people living with HIV treated for anal cancer, leaving guidance non-specific and biomedical. The identified domains offer a starting point for future research; however, to inform patient-centred care, stakeholders emphasised the need to understand how living with HIV and anal cancer shapes health needs.

RevDate: 2026-07-13
CmpDate: 2026-07-14

Dongre S, Soni N, B Bissa (2026)

Role of ESCRT pathway and autophagy in neurodegenerative diseases.

International review of neurobiology, 187:1-16.

Neurodegenerative diseases are characterized by progressive neuronal dysfunction and loss resulting from impaired proteostasis and vesicular trafficking. Neurons are particularly vulnerable to these processes due to their post-mitotic nature and complex architecture. Autophagy and the endolysosomal system constitute the primary degradative pathways responsible for maintaining neuronal homeostasis. However, increasing evidence indicates that their effective function critically depends on coordination with the endosomal sorting complexes required for transport (ESCRT). Beyond their canonical role in multivesicular body biogenesis and membrane scission, ESCRT components are now recognized as essential regulators of autophagosome closure, amphisome formation, autophagosome-lysosome fusion, and endolysosomal membrane repair. Disruption of this ESCRT-autophagy interface has emerged as a common pathological feature across major neurodegenerative disorders, including Alzheimer's disease, Parkinson's disease, and amyotrophic lateral sclerosis/frontotemporal dementia. This review synthesizes evidence from genetic, biochemical, and neuropathological studies to highlight shared molecular nodes, such as ESCRT-III components, the VPS4 ATPase, the adaptor protein ALIX, and late endosomal regulators, including Rab7, that couple membrane remodeling to autophagic flux. Failure of these regulatory checkpoints destabilizes endolysosomal integrity, arrests autophagic maturation, and promotes the accumulation of toxic protein species, thereby driving progressive neuronal degeneration. By framing neurodegeneration through the lens of ESCRT-autophagy coupling failure, this review provides a unified mechanistic perspective that links diverse pathogenic proteins to shared cellular vulnerabilities and identifies ESCRT-mediated membrane dynamics as a critical determinant of neuronal survival.

RevDate: 2026-07-14
CmpDate: 2026-07-14

Akpa B (2026)

The role of radiologic assessment in evaluating and monitoring respiratory function in amyotrophic lateral sclerosis (ALS) patients: a narrative review.

Journal of thoracic disease, 18(6):672.

BACKGROUND AND OBJECTIVE: Respiratory failure is the primary cause of mortality in amyotrophic lateral sclerosis (ALS), usually caused by progressive neuromuscular respiratory weakness. Standard pulmonary function tests (PFTs) such as maximal inspiratory pressure (MIP), maximal expiratory pressure (MEP), and both supine and upright forced vital capacity (FVC) are crucial for objective measurements of diaphragmatic weakness but have limitations, including dependence on the patient's performance and the inability to detect early, subclinical diaphragmatic impairment or be used effectively in patients with bulbar symptoms. Radiological assessments, particularly dynamic imaging, have emerged as potential objective tools for evaluating respiratory function. This review comprehensively summarizes findings on the use of diaphragmatic ultrasound (DUS), dynamic chest magnetic resonance imaging (MRI) and deep learning (DL)-based chest computed tomography (CT) for assessing lung function in ALS patients.

METHODS: Key radiological metrics include diaphragm thickness (DT), thickening fraction during inspiration, real-time diaphragmatic excursion, lung diameter changes and changes in pulmonary length and area. These measures have been compared with conventional PFTs in various studies to validate their use for diagnostic accuracy, particularly in early stages of disease.

KEY CONTENT AND FINDINGS: DUS is a non-invasive, widely available tool that strongly correlates with PFT measurements, especially FVC, MIP, and sniff nasal inspiratory pressure (SNIP). Dynamic measures, such as excursion and velocity, appear more sensitive to early dysfunction than thickness alone. Chest dynamic MRI has also shown significant correlations with spirometric parameters. Small cohort studies indicate that dynamic chest MRI is a superior, sensitive tool for detecting early respiratory impairment in asymptomatic patients with normal spirometry.

CONCLUSIONS: Radiological assessments, primarily DUS, DL-based chest CT and dynamic MRI, offer valuable, objective, and non-invasive methods for monitoring respiratory muscle strength in ALS. These techniques serve as complementary tools to traditional PFTs, particularly in selected clinical scenarios such ALS patients with early disease, bulbar involvement and unable to perform PFTs. Further longitudinal research with larger cohorts is needed to standardize protocols and validate their role as early parameters to guide the timely initiation of supportive interventions like non-invasive ventilation (NIV).

RevDate: 2026-07-14
CmpDate: 2026-07-15

Rangappa N, Upadhyay R, Lakshman N, et al (2026)

Small molecular therapeutic targets for neurodegenerative diseases.

Advances in protein chemistry and structural biology, 153:135-167.

Neurodegenerative diseases such as Alzheimer's, Parkinson's, Huntington's, and amyotrophic lateral sclerosis disease are characterized by progressive neuronal loss, protein aggregation, and synaptic dysfunction. These diseases share common pathological mechanisms including oxidative stress, mitochondrial impairment, chronic neuroinflammation, protein misfolding, and epigenetic dysregulation. Current therapies offer only symptomatic relief and fail to halt disease progression. Recent advances in transcriptomics and proteomics have enabled the identification of shared molecular pathways and druggable targets across multiple neurodegenerative diseases. The key targets, such as BDNF-TrkB, TREM2, SIRT1, PINK1-Parkin, GSK-3β, NLRP3, and mTOR have shown promise in preclinical models, offering opportunities for broad-spectrum therapeutic development. Importantly, blood-brain barrier disruption and neuroinflammatory crosstalk exacerbate disease pathology and hinder drug delivery. Innovative strategies involving nanocarriers, gene therapy, and epigenetic modulation are emerging to overcome these barriers. This review highlights the convergence of disease mechanisms, discusses common molecular signatures and therapeutic vulnerabilities, and explores novel small molecular interventions targeting shared pathways mainly in AD and PD. A deeper understanding of aging-associated molecular dysfunction is essential to design sustainable, disease-modifying therapeutics with cross-disease relevance.

RevDate: 2026-07-15
CmpDate: 2026-07-15

Kim Y, YK Jung (2026)

Proteasome Dysfunction and Aggregation-Prone Proteins in Neurodegenerative Diseases: From Mechanisms to Therapeutic Opportunities.

International journal of molecular sciences, 27(13): pii:ijms27135730.

Neurodegenerative diseases are characterized by the accumulation of misfolded and aggregation-prone proteins, reflecting a failure of proteostasis. The ubiquitin-proteasome system (UPS), a major pathway for selective intracellular protein degradation, is essential for maintaining neuronal protein homeostasis. Proteasome dysfunction has been implicated in several major neurodegenerative disorders, including Alzheimer's disease (AD), Parkinson's disease (PD), amyotrophic lateral sclerosis (ALS), and Huntington's disease (HD), although its extent and mechanisms vary across disease contexts. In this review, we examine current evidence for proteasome dysfunction in neurodegeneration and discuss how disease-associated proteins impair proteasome function through direct inhibition, defective substrate processing, and sequestration into protein aggregates. We also address the contribution of oxidative stress, neuroinflammation, and aging to proteasome dysregulation. Finally, we highlight emerging therapeutic strategies aimed at restoring proteasome function, including pharmacological activation, modulation of proteasome assembly and stability, and targeted protein degradation approaches. Understanding the context-dependent nature of proteasome dysfunction will be important for developing effective proteostasis-based therapies.

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RJR Experience and Expertise

Researcher

Robbins holds BS, MS, and PhD degrees in the life sciences. He served as a tenured faculty member in the Zoology and Biological Science departments at Michigan State University. He is currently exploring the intersection between genomics, microbial ecology, and biodiversity — an area that promises to transform our understanding of the biosphere.

Educator

Robbins has extensive experience in college-level education: At MSU he taught introductory biology, genetics, and population genetics. At JHU, he was an instructor for a special course on biological database design. At FHCRC, he team-taught a graduate-level course on the history of genetics. At Bellevue College he taught medical informatics.

Administrator

Robbins has been involved in science administration at both the federal and the institutional levels. At NSF he was a program officer for database activities in the life sciences, at DOE he was a program officer for information infrastructure in the human genome project. At the Fred Hutchinson Cancer Research Center, he served as a vice president for fifteen years.

Technologist

Robbins has been involved with information technology since writing his first Fortran program as a college student. At NSF he was the first program officer for database activities in the life sciences. At JHU he held an appointment in the CS department and served as director of the informatics core for the Genome Data Base. At the FHCRC he was VP for Information Technology.

Publisher

While still at Michigan State, Robbins started his first publishing venture, founding a small company that addressed the short-run publishing needs of instructors in very large undergraduate classes. For more than 20 years, Robbins has been operating The Electronic Scholarly Publishing Project, a web site dedicated to the digital publishing of critical works in science, especially classical genetics.

Speaker

Robbins is well-known for his speaking abilities and is often called upon to provide keynote or plenary addresses at international meetings. For example, in July, 2012, he gave a well-received keynote address at the Global Biodiversity Informatics Congress, sponsored by GBIF and held in Copenhagen. The slides from that talk can be seen HERE.

Facilitator

Robbins is a skilled meeting facilitator. He prefers a participatory approach, with part of the meeting involving dynamic breakout groups, created by the participants in real time: (1) individuals propose breakout groups; (2) everyone signs up for one (or more) groups; (3) the groups with the most interested parties then meet, with reports from each group presented and discussed in a subsequent plenary session.

Designer

Robbins has been engaged with photography and design since the 1960s, when he worked for a professional photography laboratory. He now prefers digital photography and tools for their precision and reproducibility. He designed his first web site more than 20 years ago and he personally designed and implemented this web site. He engages in graphic design as a hobby.

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Amyotrophic Lateral Sclerosis, or ALS, is a rare, incurable neuro-degenerative disease, of unknown etiology. With this disease, both upper (brain) and lower (spinal cord) motor neurons progressively degenerate and die, rendering immobile the muscles that they innervated. For anyone with a need or desire to appreciate what is known about ALS, this book provides a good foundation. R. Robbins

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Collection of publications by R J Robbins

Reprints and preprints of publications, slide presentations, instructional materials, and data compilations written or prepared by Robert Robbins. Most papers deal with computational biology, genome informatics, using information technology to support biomedical research, and related matters.

Research Gate page for R J Robbins

ResearchGate is a social networking site for scientists and researchers to share papers, ask and answer questions, and find collaborators. According to a study by Nature and an article in Times Higher Education , it is the largest academic social network in terms of active users.

Curriculum Vitae for R J Robbins

short personal version

Curriculum Vitae for R J Robbins

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RJR Picks from Around the Web (updated 11 MAY 2018 )