hit counter

Post-Meal Glucose Genetics Linked to Lacunar Stroke Risk

MHD featured image for post-meal glucose genetics and lacunar stroke risk.

A 2026 medRxiv genetic analysis linked type 2 diabetes and 2-hour postprandial glucose — the blood-sugar rise after an oral glucose challenge — to higher lacunar stroke risk, with a stronger direct signal for post-meal glucose than for HbA1c after adjustment for brain small-vessel imaging markers.1 Research Highlights Lacunar stroke was the clearest endpoint: genetically …

Read more

Football Head Impacts Linked Cortical Slowing to NET and BDNF Maps

MHD featured image for adolescent football head impacts and cortical slowing maps.

A 91-player adolescent football preprint mapped head-impact-related cortical slowing onto brain receptor and gene-expression maps: concussion-related slowing aligned with norepinephrine transporter density, r = 0.43, and alpha-4 beta-2 nicotinic receptor density, r = 0.50, while aligning inversely with dopamine D2, BDNF, and APOE maps.1 The result is a mechanistic clue about where head-impact physiology may …

Read more

Parkinson’s Metabolite Biomarkers Split 3 Patient Groups

MHD featured image for Parkinson's disease metabolite biomarkers and patient metabolic subgroups.

A 2026 Parkinson’s disease study used gene-expression data and genome-scale metabolic modeling to predict patient-level metabolite patterns, then separated 104 patients into 3 metabolic subgroups that were partly reproduced in an independent 81-patient validation dataset. Research Highlights Patient-level modeling found heterogeneity: Abdik et al. predicted secretion tendencies for 802 analyzable metabolites across 104 postmortem substantia …

Read more

GPR30 and Migraine: Estrogen Link Still Lacks Human Trials

MHD featured image for GPR30, estrogen signaling, trigeminal ganglion biology, and migraine.

A 2026 review argued that G protein-coupled receptor 30 may connect estrogen signaling, trigeminal pain pathways, and migraine biology, but migraine-specific human trials of GPR30-targeted drugs are still missing. Research Highlights The migraine rationale is hormone-linked: women have roughly 2 to 3 times the migraine prevalence of men, and 50% to 60% of women with …

Read more

ATP11B-YAP Pathway Improved Memory and Ferroptosis in Aged Mice

MHD featured image for ATP11B-YAP signaling, ferroptosis, mitochondrial dysfunction, and age-related cognitive decline in aged mice.

A 2026 mouse and cell study found that ATP11B loss pushed aged brains toward hippocampal iron accumulation, mitochondrial dysfunction, neuronal ferroptosis, and worse memory behavior than wild-type comparison mice; ATP11B overexpression then improved multiple learning and memory tests in 18-month-old mice. Research Highlights Memory signal: ATP11B-deficient mice performed worse than wild-type mice on Morris water …

Read more

Depression SPECT Study Links Worry to NeuroMark Brain Networks

MHD featured image for NeuroMark SPECT and depression biomarkers.

A 2026 medRxiv preprint used 68 NeuroMark SPECT components to analyze 2,746 psychiatric patient scans and 76 controls, linking depression-related worry/rumination and social disinterest to brain-network patterns.1 This preprint is useful as a large biomarker-generating map, but the clinical-diagnostic claim needs much more caution than the sample size alone suggests. Research Highlights Large clinical SPECT …

Read more