Ethanolamine Looked Like a Depression Biomarker and Treatment Target TL;DR: In a 380-person cerebrospinal fluid dataset, patients with active major depression had lower ethanolamine levels than controls, those levels rose after electroconvulsive therapy, and parallel rat experiments suggested the molecule may be more than just a marker. Key Findings 380-person cerebrospinal fluid (CSF), the fluid …
Cannabinoids Had Weak Evidence for Mental Disorders TL;DR: A Lancet Psychiatry review of randomized trials found little support for routine cannabinoid treatment in common mental disorders, despite possible weak signals in a few narrower conditions. Key Findings 54 randomized controlled trials were reviewed: The analysis covered 2,477 participants across mental disorders and substance-use disorders. Routine …
Old Autonomy Wounds Made COVID Conspiracies Stickier TL;DR: COVID conspiracy beliefs became stronger when restrictive situations reactivated memories of lost autonomy, suggesting that misinformation can feel persuasive because it repairs an old sense of being controlled. Key Findings 141 Quebec adults linked restriction to later belief: In Study 1, participants read a mask-rule scenario, described …
TL;DR: A 2026 randomized trial in The British Journal of Psychiatry found 6 ketamine infusions improved severe treatment-resistant depression, but curated music added no measurable benefit; higher mystical-experience scores still predicted the next session’s depression outcome. Key Findings MADRS fell 11.8 points by week 4: Scores dropped from 31.5 to 19.7 (d = 1.2, p …
DLPFC-sgACC Circuit Signal Predicted rTMS Remission TL;DR: Before starting rTMS, patients who later remitted from depression showed lower alpha-band connectivity flowing from the DLPFC to the subgenual cingulate — pointing toward a measurable EEG marker that could help select candidates before weeks of treatment are spent. Key Findings Remitters had lower pre-treatment DLPFC-to-sgACC alpha connectivity: …
Mediodorsal Thalamus Activity Restored Belief Updating TL;DR: A Nature Neuroscience mouse study linked a schizophrenia-risk Grin2a mutation to weaker mediodorsal thalamus activity, impaired belief updating, and behavioral rescue when researchers reactivated the thalamus-prefrontal circuit during flexible decision-making in mice. Key Findings Grin2a was the genetic entry point: The mutation affects an NMDA receptor subunit gene …
How Astrocytes Help the Amygdala Store Fear Memories TL;DR: Amygdala astrocytes were not passive support cells: their calcium signals tracked learned fear states and were required for neuronal fear-memory representations in mice. Key Findings In vivo BLA imaging across multiple mouse cohorts: The team combined astrocyte and neuronal calcium imaging, electrophysiology, and circuit manipulations in …
Meat Intake Linked to Lower Dementia Risk in APOE4 Carriers TL;DR: In APOE4 carriers, higher total meat intake tracked with lower observed dementia risk over 15 years, while a higher processed-to-total meat ratio moved in the unfavorable direction. Key Findings 2,157 dementia-free adults: The study used the Swedish National Study on Aging and Care-Kungsholmen cohort …
How Often Trauma-Exposed Kids Develop PTSD Now TL;DR: An updated meta-analysis of 95 studies found that about 1 in 5 trauma-exposed children met DSM-IV PTSD criteria and about 1 in 8 met DSM-5 criteria, with the highest rates in girls and in youth exposed to interpersonal trauma. Key Findings 95 studies over 30 years: The …
Egypt’s 1,530-Person Alzheimer’s Cohort Captures Risks Western Studies Miss TL;DR: A DAC-Egypt cohort enrolled 1,530 adults aged 55 to 98, collected blood from 98%, and captured a rural, low-literacy, metabolically burdened population that most dementia datasets do not represent well. Key Findings Rural Egyptian cohort filled a data gap: The cohort recruited community-dwelling Egyptians aged …
