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TL;DR: A 2026 systematic review in The Cochrane Database of Systematic Reviews pooled 17 trials of anti-amyloid monoclonal antibodies (N=20,342 people with mild cognitive impairment or mild Alzheimer’s dementia) and concluded that any effect on memory decline…
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TL;DR: A 2026 Mendelian randomization study in Progress in Neuro-Psychopharmacology & Biological Psychiatry used genetic data to test direction of effect between brain structure and neurodevelopmental conditions, and found that increased surface area in the su…
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TL;DR: A 2024 Gastroenterology study found that intestinal epithelial serotonin reduced anxiety- and depression-like behavior in mice through vagal signaling, while prenatal SSRI exposure in a human cohort predicted infant functional constipation independent o…
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TL;DR: A 2026 mouse study in iScience found that anesthetic emergence slowed sharply below 31.9°C because two hypothalamic thermoregulatory pathways pushed anesthesia in opposite directions: preoptic BDNF neurons deepened anesthesia, while a dorsomedial-hypoth…
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TL;DR: A 2026 medRxiv preprint found that ex-smokers had higher fMRI blood oxygen level dependent (BOLD) responses to high-energy food pictures than adults with obesity or abstinent alcohol dependence, suggesting a brain reward route for post-quitting weight g…
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TL;DR: A 2026 rat study in Neurobiology of Stress found that early-life visceral stress produced adult IBS-like symptoms alongside auditory brainstem sensitization and cochlear protein changes, giving a mechanistic explanation for sound sensitivity reported by…
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TL;DR: A 2025 Molecular Psychiatry study of more than 36,000 people found that higher autism polygenic risk was associated with lower MRI-derived neurite density, a measure of neural-fiber packing, across cortex and white matter in both children and adults. Ke…
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TL;DR: A 2026 systematic review in Translational Psychiatry found that depression brain-stimulation studies repeatedly linked treatment response to subcallosal cingulate connectivity, but inconsistent methods still limit its use as a treatment-selection biomar…
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TL;DR: A 2025 mouse study in Cell mapped a sleep-growth hormone circuit, showing how hypothalamic GHRH and somatostatin neurons coordinate hormone pulses and then feed back onto wakefulness. Key Findings GH rose in REM and NREM: Growth hormone release was enha…
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TL;DR: A 2026 medRxiv preprint found that alpha-synuclein seed-positive Parkinson’s patients had slower ON-medication motor progression, measured while usual Parkinson’s medication was active, and more sustained levodopa responsiveness than matched seed-negati…
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