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Alzheimer’s Amyloid Plaques Recruit CD8 T Cells Through Type I Interferon

MHD featured image for Alzheimer's amyloid plaques, CD8 T cells, type I interferon, and CXCL10 signaling.

A 2026 single-cell and spatial-transcriptomics study of 21,156 brain immune cells found that late amyloid disease shifted interferon-driven neuroinflammation from microglia toward plaque-associated CD8 T cells, with T-cell frequency strongly tracking total amyloid deposits (Spearman rho = 0.844, p < 0.0001).1 The result does not turn Alzheimer’s disease into an autoimmune disease, but it makes …

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Multiple Sclerosis Frailty Exercise Improved Fatigue in 6 Weeks

MHD featured image for multimodal exercise, frailty, fatigue, and quality of life in multiple sclerosis.

A 2026 pilot randomized trial in 16 frail adults with multiple sclerosis found that 6 weeks of supervised multimodal exercise was feasible: retention was 87.5%, adherence was 97.2%, no adverse events were recorded, and fatigue and quality-of-life scores moved more than they did with waitlist control.1 Research Highlights Feasibility cleared the prespecified bar: 14 of …

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Dysarthria Speech Biomarker Tracked Severity Across 5 Languages

MHD featured image for dysarthria speech biomarkers, phonological subspace collapse, and cross-language severity tracking.

A 2026 medRxiv preprint found that a training-free speech biomarker tracked dysarthria severity across 890 speakers, 10 corpora, and 5 full-pipeline languages, with all 5 consonant d-prime features showing random-effects correlations with clinical severity (rho = −0.50 to −0.56; all p < 2e−4). Research Highlights Speech-severity signal was broad: Muller et al. evaluated 890 speakers …

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Serum MOG Blood Biomarker Rose During Multiple Sclerosis Relapse

MHD featured image for serum MOG blood biomarker levels and multiple sclerosis relapse activity.

A 2026 medRxiv case-control study found that serum myelin oligodendrocyte glycoprotein was 20.5 pg/ml higher in multiple sclerosis than in healthy donors and 15.3 pg/ml higher during relapse than remission, making it a plausible blood marker of demyelination rather than a replacement for neurofilament light chain. Research Highlights MOG was higher in MS: serum myelin …

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ALS CSF Proteomics Found 399 Candidate Proteins and a 5-Protein Panel

MHD featured image for ALS CSF proteomics and biomarker panels.

A 2026 cerebrospinal-fluid proteomics preprint involving 87 amyotrophic lateral sclerosis (ALS) patients, 89 healthy controls, and 61 neurological controls reported 399 ALS candidate proteins, complement markers that tracked disease stage, and a 5-protein panel that classified ALS vs. healthy controls with ROC AUC 0.95 after the best-known neurodegeneration markers were removed.1 Research Highlights CSF proteomics …

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ALS Entropy Analysis Finds 5-Month Signal Hidden by ALSFRS Scores

MHD featured image for ALS trial endpoints, Shannon entropy, and ALSFRS domain trajectories.

A 2026 PRO-ACT analysis of amyotrophic lateral sclerosis (ALS) trial data found a signal that ordinary ALSFRS total-score slopes cannot even express: Shannon entropy trajectories diverged between pooled active and placebo arms, including a 5-month delay in peak Fine Motor distributional spread for active-arm patients.1 Research Highlights Entropy found an endpoint-level signal: Rodriguez analyzed 7,512 …

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Risperidone in Dementia Raised Stroke-Related Events 4.11x by Week 4

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A 2026 individual participant data meta-analysis of 1,721 dementia trial participants linked risperidone to cerebrovascular adverse events, HR 4.11 (95% CI 1.77 to 9.51), and major cardiovascular adverse events, HR 2.00 (95% CI 1.23 to 3.26).1 The timing signal is the practical warning: median first cerebrovascular event appeared at 4.3 weeks, and median first major …

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