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 …
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, …
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 …
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 …
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. …
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 …
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: …
TL;DR: A 2026 medRxiv preprint from the ENIGMA Addiction Working Group used structural MRI from 2,782 people with substance use disorder (SUD) and 1,951 controls and reported that addiction-related brain differences followed cortical network hubs and neurotransmitter receptor maps. Key Findings 4,733-person MRI sample: Researchers compared 2,782 people with SUD against 1,951 controls across 51 …
TL;DR: A 2026 systematic review and meta-analysis posted as a medRxiv preprint found that mindfulness-based programs were linked to a small improvement in executive function, meaning inhibition, working memory, and flexible thinking, across 13 youth trials. Key Findings 13 trials were included: The meta-analysis pooled randomized and quasi-randomized trials in 1,560 children and adolescents aged …
TL;DR: A 2026 rat and cell study in Journal of Materials Science: Materials in Medicine reported that an engineered VIN nanosystem shifted microglia toward an anti-inflammatory state and reduced ischemic-stroke infarct measures in MCAO rats. Key Findings CXCR4 increased 1.75-fold: Fe3O4 nanoparticle induction raised CXCR4 expression in bone-marrow mesenchymal stem cell membranes. A151 loading reached …
