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TL;DR: A 2026 mouse preprint in bioRxiv found that psilocybin reduced firing in somatostatin (SST) interneurons, inhibitory cortical cells that gate dendritic input, while increasing parvalbumin (PV) interneuron firing in the medial frontal cortex. Key Finding…
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TL;DR: A 2026 systematic review and exploratory network meta-analysis of 5 randomized trials in Neurological Sciences found dose-specific ON-medication motor improvements, measured while usual Parkinson’s drugs were active, for some GLP-1 receptor agonists, gl…
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TL;DR: A 2026 systematic review and meta-analysis in Neuropsychopharmacology found that dopamine D2-like receptor activation suppressed glucose-stimulated insulin secretion (GSIS), insulin release after high glucose, in animal pancreatic cells, suggesting one…
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TL;DR: A 2026 mouse and rat study in Molecular Psychiatry reported that 25C-NBF, a selective serotonin 2A receptor agonist from the 2C-X phenethylamine series, produced rapid antidepressant-like effects, increased dendritic spines and Bdnf expression in the pr…
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TL;DR: A 2026 cross-sectional study in PLOS One found that euthymic bipolar disorder patients with early systematic antidepressant treatment had higher negative affect and higher attentional, non-planning, and total impulsivity scores than matched patients wit…
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TL;DR: A 2026 mouse study in Psychopharmacology found that repeated dexamethasone, a synthetic glucocorticoid steroid, disrupted light-phase sleep and increased orexin-neuron activity, a wake-promoting hypothalamic signal, during sleep-to-wake transitions. Key…
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TL;DR: A 2026 systematic review in Journal of Clinical Sleep Medicine found that cognitive behavioral therapy for insomnia (CBT-I), a structured behavioral sleep treatment, plus sleep medication improved chronic insomnia more than medication alone, but adding…
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TL;DR: A 2026 randomized phase 2 trial in Nature Medicine found that three targeted drugs added to radiotherapy did not improve overall survival for children with diffuse intrinsic pontine glioma (DIPG), a lethal brainstem tumor, although everolimus caused few…
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TL;DR: A 2025 study in Neurochemistry International from Kindai University showed that oral arginine, a naturally occurring amino acid, blocked the formation of toxic amyloid-beta aggregates in lab tests and reduced amyloid pathology in two well-established mo…
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TL;DR: A 2026 study in JAMA Network Open analyzed Medicare claims for adults 66+ from 2008 to 2021 and found that cognition-altering medications — antipsychotics, benzodiazepines, hypnotics, anticholinergics — were disproportionately initiated in emergency roo…
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