TL;DR: A 2026 mouse study in Cell found that olfactory receptor neurons, the smell-sensing cells in the nose, were arranged in spatial bands that lined up with matching sensory maps in the brain’s olfactory bulb. Key Findings Organized receptor bands: Researchers found that odor receptor neurons were not randomly scattered across the mouse nose; receptor …
TL;DR: A 2026 study in Journal of Exposure Science & Environmental Epidemiology linked prenatal PM2.5 and non-freeway NOx exposure with newborn amino-acid metabolism pathways that also tracked autism spectrum disorder (ASD) diagnosis before age 5. Key Findings 100 newborn blood spots: Researchers analyzed 50 children later diagnosed with ASD and 50 matched controls from Kaiser …
TL;DR: A 2026 Communications Biology study associated maternal SARS-CoV-2 infection during pregnancy with more positive toddler autism-risk screens and newborn immune-protein patterns tied to nicotinamide metabolism, microglial activation, and neutrophil activity. Key Findings Positive M-CHAT-R/F screens, a toddler autism-risk screening result, occurred in 10.1% of 218 SARS-CoV-2-exposed children versus 5.7% of 527 pre-pandemic controls. Earlier …
TL;DR: A 2026 systematic review and meta-analysis in Psychogeriatrics linked loneliness with Alzheimer’s disease and several forms of suicidal behavior, with especially strong shared correlations for hopelessness, insomnia, entrapment, and stress. Key Findings 316 studies reviewed: Researchers found 44 studies on loneliness and Alzheimer’s disease, 261 on loneliness and suicide, and no original study that …
TL;DR: A 2026 real-world cohort study in Journal of Diabetes & Metabolic Disorders linked GLP-1 receptor agonists, drugs targeting a glucose-related metabolic hormone pathway, to a higher hazard of new hypersomnolence, but the absolute risk increase was small. Key Findings 237,986 matched patients: The TriNetX analysis compared 118,993 GLP-1 receptor agonist users with 118,993 matched …
TL;DR: A 2026 study in Cognitive, Affective, & Behavioral Neuroscience found that lower frontal midline theta, an EEG marker of cognitive-control engagement, partly explained why young adults with higher negative emotionality performed worse on a Go/No-Go inhibition task. Key Findings 106 young adults completed EEG testing: U.S. Army National Guard recruits performed a Go/No-Go task …
TL;DR: A 2026 preprint on medRxiv used resting-state functional MRI (fMRI), a brain-connectivity scan taken while people are not doing a task, to divide older adults at Alzheimer’s risk into anxiety biotypes that responded differently to frontal-lobe tDCS stimulation. Key Findings Older-adult tDCS trial: The final sample included 199 older adults, with 99 sham tDCS …
TL;DR: A 2026 Nature Communications paper introduced CAptVE, a fluorescent aptamer method that labels molecular features in mouse brain tissue while preserving ultrastructure for electron-microscopy connectomics. Key Findings Detergent-free labeling: CAptVE used slow off-rate modified aptamers to label brain cells without detergent permeabilization that can disrupt ultrastructure. Three fixation steps: The optimized pipeline balanced fluorescence …
TL;DR: A 2026 randomized trial in Scientific Reports found that adding esketamine to sufentanil patient-controlled analgesia lowered short-term postoperative depression and anxiety scores in elderly colorectal cancer surgery patients, without improving pain scores or increasing adverse events. Key Findings Three randomized groups: 91 older colorectal cancer surgery patients completed follow-up after assignment to sufentanil alone, …
TL;DR: A study in Communications Biology found that environmental enrichment, richer housing with objects, running space, and novelty, reduced early-life-stress-linked visceral pain and depression-like behavior in rats while normalizing a CB1 receptor-sensitive prefrontal-limbic stress circuit. Key Findings Early stress model: Researchers used neonatal colorectal distension (CRD), a controlled early-life gut stressor, in male and female …
