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Lobar Brain Bleeds Carried 3.49x Dementia Risk in NLP Stroke-Subtype Study

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A 2026 Scottish health-system preprint used natural language processing of CT and MRI reports to subtype stroke and found that lobar intracerebral hemorrhage carried a higher dementia risk beyond 6 months, aHR 3.49 vs matched controls.1 The method reduced unspecified stroke coding from 26.1% to 3.4%, making location-specific prognosis easier to see. Research Highlights Lobar …

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fMRI Low-Frequency Oscillation Tracked Nicotine Dependence and Arousal

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A 2026 multi-cohort fMRI study found that a signal often treated as physiological noise tracked nicotine dependence, cue-induced craving, abstinence, and stimulant effects.1 During cigarette cue exposure, systemic low-frequency oscillation amplitude correlated with nicotine dependence at r = −0.32, p = .009. Research Highlights Dependence tracked cue-period physiology: In 64 smokers, higher average sLFO amplitude …

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Eye Movement Biomarkers Separated Anxiety from Controls With AUC 0.82

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A 327-person eye-tracking study found that anxiety disorders carried a hyper-scanning and hyper-pursuit signature, separating anxiety patients from healthy controls with AUC 0.82.1 The same eye-movement data separated anxiety from depression poorly, so the result is better read as a behavioral arousal marker than as a ready diagnostic test. Research Highlights Anxiety vs controls separated …

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GLP-1 Stroke Review Finds Prevention Signal, No Acute Neuroprotection Proof

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A 2026 review concluded that GLP-1 receptor agonists have plausible stroke biology and modest prevention signals, but current human evidence does not support routine use as acute ischemic stroke neuroprotection.1 The useful clinical split is prevention in cardiometabolic patients vs. acute brain-rescue treatment after stroke onset. Research Highlights Acute neuroprotection is not established: the 2026 …

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Lower Uric Acid Predicted Depression in Prodromal Parkinson’s Disease

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A 5-year PPMI cohort analysis found that lower serum uric acid independently predicted incident depression in prodromal Parkinson’s disease (HR = 0.776; 95% CI 0.619-0.974; P = 0.029).1 The signal sits beside a lower-p-value non-motor symptom predictor: higher MDS-UPDRS Part I scores also predicted depression (HR = 1.177; 95% CI 1.093-1.267; P < 0.001). Research ...

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Lateral Septal PACAP Increased Stress Hormones and Anxiety Behavior

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A 2026 rat study found that activating PACAP signaling in the lateral septum amplified stress-hormone release and anxiety-like behavior, while blocking endogenous PACAP receptors produced an anxiolytic pattern.1 The result makes the lateral septum look less like a passive relay and more like a stress-reactivity node in the PACAP pathway. Research Highlights Stress hormones rose: …

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Trichostatin A for Alzheimer’s: 8 Core Genes, Unstable Binding

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A 2026 PLOS One computational study linked Trichostatin A to 949 predicted targets and 8 machine-learning-selected Alzheimer’s disease core genes, but 100 ns molecular dynamics simulations suggested the compound did not stably bind those candidate proteins.1 That makes the result more useful as an epigenetic network hypothesis than as evidence for a near-term Alzheimer’s drug. …

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