Neurodegenerative Disorders

Parkinson’s Prevention Review Highlights Exercise, Diet, Toxins, and Rehabilitation

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Parkinson's Prevention Review Highlights Exercise, Diet, Toxins, and Rehabilitation

TL;DR: A 2026 narrative review in Neurological Research and Practice argued that Parkinson’s prevention is most actionable through physical activity, Mediterranean-style diet patterns, toxin reduction, earlier prodromal detection, and better rehabilitation after diagnosis. Key Findings Fastest-growing neurological disorder: The review described Parkinson’s disease as the fastest-growing neurological disorder worldwide. 6.2 to 11.8 million cases: A …

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Poly-GR Increased Ferroptosis Vulnerability in C9orf72-ALS Cells

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Poly-GR Increased Ferroptosis Vulnerability in C9orf72-ALS Cells

TL;DR: A 2026 study in Cell & Bioscience found that poly-GR, a toxic repeat protein linked to C9orf72-ALS, pushed motor neuron-like cells toward ferroptosis by raising lipid peroxidation and ferrous iron while weakening the Nrf2/Slc7a11 antioxidant pathway. Key Findings GR50 model: Researchers expressed EGFP-GR50, a 50-repeat glycine-arginine poly-GR construct, in NSC-34 motor neuron-like cells. Ferroptosis …

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AI-Guided Variable Levodopa Feasible in 5 Parkinson’s Patients

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AI-Guided Variable Levodopa Feasible in 5 Parkinson's Patients

TL;DR: A 2026 open-label feasibility trial in IBRO Neuroscience Reports tested an AI-guided variable levodopa schedule in 5 people with Parkinson’s disease and found 4 patients improved on UPDRS, but the study was far too small and uncontrolled to prove efficacy. Key Findings Feasibility sample: The single-center trial enrolled 5 people with Parkinson’s disease after …

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Two-Dose Intranasal NSC-EV Therapy Reduced Aged Hippocampal Inflammation in Mice

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Two-Dose Intranasal NSC-EV Therapy Reduced Aged Hippocampal Inflammation in Mice

TL;DR: A 2026 mouse study in Journal of Extracellular Vesicles found that two intranasal doses of hiPSC-NSC-EVs reduced inflammatory pathway markers in the aged hippocampus and were associated with better memory performance. Key Findings Two-dose nasal treatment: Late middle-aged 18-month-old male and female C57BL/6J mice received two intranasal doses of hiPSC-NSC-EVs before assessment in old …

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Neurogenic Orthostatic Hypotension Was Underdiagnosed and Disabling in MSA Survey

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Neurogenic Orthostatic Hypotension Was Underdiagnosed and Disabling in MSA Survey

TL;DR: A 2026 preprint in medRxiv surveyed people with multiple system atrophy and found that neurogenic orthostatic hypotension was often underdiagnosed, rarely fully controlled, and strongly tied to daily function and caregiver burden. Key Findings 259 MSA respondents: The survey analyzed 259 people with self-reported multiple system atrophy, with mean age 64.38 years and 44% …

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iSupport-Malaysia Dementia Caregiver Platform Scored Above Usability Benchmark

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iSupport-Malaysia Dementia Caregiver Platform Scored Above Usability Benchmark

TL;DR: A 2026 preprint posted on medRxiv found that iSupport-Malaysia, a culturally adapted multimedia dementia-caregiver platform, scored above the usual usability benchmark and was viewed as culturally appropriate by caregivers and healthcare professionals. Key Findings Four-phase adaptation: The WHO iSupport dementia program was translated into Bahasa Malaysia, culturally adapted, and rebuilt as multimedia e-learning. 23 …

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Inhaled CBD Reduced IDO and cGAS Neuroinflammation Signals in Alzheimer Mice

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Inhaled CBD Reduced IDO and cGAS Neuroinflammation Signals in Alzheimer Mice

TL;DR: A 2025 mouse study in eNeuro reported that inhaled cannabidiol reduced IDO and cGAS pathway activity and lowered pro-inflammatory cytokines in male 5XFAD Alzheimer’s model mice. Key Findings 5XFAD model: The study used male 5XFAD transgenic mice, a common amyloid-heavy Alzheimer’s disease model. Inhaled CBD: Cannabidiol was administered by inhalation rather than by oral …

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Glial Mitochondrial Transfer Protected Sensory Neurons From Neuropathy

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Glial Mitochondrial Transfer Protected Sensory Neurons From Neuropathy

TL;DR: A 2026 Nature study found that satellite glial cells can transfer mitochondria to sensory neurons, and blocking that transfer in mice promoted nerve degeneration and neuropathic pain. Key Findings 83.3% transfer: In mouse co-cultures, 83.3% of dorsal root ganglion neurons received mitochondria from satellite glial cells. 31.3% TNT-positive: Visible tunnelling nanotubes were seen in …

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Amyloid, Tau, and Neurodegeneration Axes Mapped Alzheimer’s Heterogeneity

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Amyloid, Tau, and Neurodegeneration Axes Mapped Alzheimer's Heterogeneity

TL;DR: A 2026 preprint in medRxiv used amyloid positron-emission tomography, tau molecular imaging, and structural MRI to build individualized Alzheimer’s disease biomarker axes from ADNI and validate them in OASIS. Key Findings 12,430 ADNI images: The pipeline harmonized longitudinal amyloid-beta and tau positron-emission tomography images plus T1 MRI gray matter images from ADNI. 4,958 OASIS …

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Leigh Syndrome Organoid Drug Screen Identified Talarozole and Sertaconazole

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Leigh Syndrome Organoid Drug Screen Identified Talarozole and Sertaconazole

TL;DR: A 2026 study in Nature Communications used deep learning, yeast screening, and human brain organoids to identify talarozole and sertaconazole as preclinical candidates that rescued several SURF1-related Leigh syndrome cell and organoid phenotypes. Key Findings 2,250-drug yeast screen: Researchers screened a repurposable-drug library in a yeast model carrying a SURF1-homologue defect and selected top …

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