Neuroscience

CBD Psychiatric Claims Need Standardized Products and Safety Monitoring

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CBD Psychiatric Claims Need Standardized Products and Safety Monitoring

TL;DR: A 2026 paper in Neuropsychopharmacology argued that cannabidiol (CBD), a non-intoxicating cannabis compound, has plausible psychiatric and neurological uses, but clinical claims need standardized products, exposure tracking, and safety monitoring before retail CBD can be treated like medicine. Key Findings Epilepsy evidence is strongest: Approved prescription CBD has the clearest support in rare pediatric …

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Catecholamine GPCR Ligand Selectivity Was Swapped by Small Residue Sets

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Catecholamine GPCR Ligand Selectivity Was Swapped by Small Residue Sets

TL;DR: A 2026 Nature Communications study found that small sets of amino-acid changes could swap ligand preference between beta2 adrenergic and D1 dopamine receptors, showing that receptor selectivity depends on both the binding pocket and surrounding structural interfaces. Key Findings 120 receptor mutants: Researchers tested 120 engineered catecholamine receptor mutants across beta2 adrenergic and D1 …

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Bumetanide Study Captured Sensory-Reactivity Changes in Neurodevelopmental Disorders

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Bumetanide Study Captured Sensory-Reactivity Changes in Neurodevelopmental Disorders

TL;DR: A 2026 preprint in medRxiv found that a parent-cocreated sensory-reactivity outcome set captured anxiety, mood, sleep, fatigue, cognition, and peer-relationship changes during bumetanide treatment in children and adolescents with neurodevelopmental disorders, but the unmasked design means the results should not be treated as definitive drug efficacy evidence. Key Findings Treatment cohort: 113 children and …

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Brain Tumor MRI Classifier Hit 99.29% Accuracy in One Dataset

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Brain Tumor MRI Classifier Hit 99.29% Accuracy in One Dataset

TL;DR: A 2026 Scientific Reports study reported that machine learning models classified brain tumor MRI images across four categories with high internal accuracy, led by a convolutional neural network at 99.29% on a single public dataset. Key Findings 7,023 MRI images: Researchers trained and tested models on 7,023 brain MRI images from a publicly available …

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Anxious Depression Showed Distinct Whole-Brain fMRI Patterns

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Anxious Depression Showed Distinct Whole-Brain fMRI Patterns

TL;DR: A 2026 meta-analysis in Dialogues in Clinical Neuroscience pooled whole-brain functional MRI studies and found that anxious major depressive disorder (anxious MDD, depression with prominent anxiety symptoms) showed different brain-activity patterns from both non-anxious MDD and healthy controls. Key Findings 11 studies were included: The meta-analysis covered 829 anxious MDD patients, 681 MDD patients, …

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Amyloid PET Became Central to Alzheimer’s Antibody Eligibility

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Amyloid PET Became Central to Alzheimer’s Antibody Eligibility

TL;DR: A 2026 narrative review in the Japanese Journal of Radiology reported that Alzheimer’s brain positron emission tomography (PET) imaging has shifted from supportive diagnosis toward treatment selection because amyloid PET is now central to confirming eligibility for anti-amyloid antibody therapy. Key Findings Three PET roles: The review separated FDG-PET, amyloid PET, and tau PET …

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Amitriptyline Pollution Disrupted Male Guppy Spatial Learning

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Amitriptyline Pollution Disrupted Male Guppy Spatial Learning

TL;DR: A 2026 study in Environmental Science & Technology found that male guppies exposed for 11 days to environmentally relevant amitriptyline, a tricyclic antidepressant detected in waterways, made more spatial-learning errors in a maze while females were largely unaffected. Key Findings 170-fish learning test: Researchers tested wild-caught male and female guppies across 12 maze trials …

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AI-Assisted Bayesian Inference Found Gamma-Secretase Alzheimer Pathways

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AI-Assisted Bayesian Inference Found Gamma-Secretase Alzheimer Pathways

TL;DR: A 2026 medRxiv preprint applied ChatGPT-4o-assisted Bayesian-frequentist hybrid inference to Alzheimer’s single-nucleus RNA-seq data and identified gamma-secretase and HP1 transcription pathways that a no-evidence frequentist setting did not recover. Key Findings 427 ROSMAP samples: The application used postmortem prefrontal cortex single-nucleus RNA-seq data from 427 Religious Orders Study and Memory and Aging Project samples. …

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Adolescent Trauma Disrupted Parent-Cued Fear Extinction in fMRI Study

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Adolescent Trauma Disrupted Parent-Cued Fear Extinction in fMRI Study

TL;DR: A 2026 study in Biological Psychiatry: Global Open Science found that trauma-exposed adolescents, especially those with higher posttraumatic stress symptoms, showed disrupted parent-cued fear extinction across skin-conductance, behavioral-learning, and functional MRI (fMRI) measures. Key Findings 87 dyads entered the extinction task: The analysis included typically developing adolescents and trauma-exposed adolescents with lower or higher …

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Fasting Activated ADIOL-Kynurenine Pathway to Improve Worm Healthspan

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Fasting Activated ADIOL-Kynurenine Pathway to Improve Worm Healthspan

TL;DR: A 2026 study in Aging Cell found that fasting and caloric restriction activated ADIOL, a steroid hormone, through an NHR-91-kynurenic acid pathway that improved several healthspan measures in worms without extending lifespan. Key Findings ADIOL was the central hormone: 5-androstene-3beta,17beta-diol (ADIOL) linked nutrient restriction to healthier function in C. elegans worms. NHR-91 was required: …

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