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Perinatal Depression in Ethiopia: 22.49% Pooled Umbrella Prevalence

MHD featured image for perinatal depression prevalence in Ethiopia.

An Ethiopian umbrella review estimated perinatal depressive symptoms at 22.49% across 8 systematic reviews and meta-analyses. Antenatal and postnatal rates were similar, so the burden spans the whole perinatal window rather than clustering only after delivery.1 Research Highlights Overall pooled prevalence was 22.49%: Necho et al. combined 8 Ethiopian systematic reviews and meta-analyses covering 28 …

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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 …

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ALS Anxiety: 18% State, 14% Trait in 433 Patients

MHD featured image for anxiety and depression in amyotrophic lateral sclerosis.

In 433 non-demented amyotrophic lateral sclerosis (ALS) patients, clinically significant anxiety was present in 18.2% for state anxiety and 13.9% for trait anxiety. The strongest predictor was not motor severity, cognition, or caregiver-rated behavior; it was depression, especially cognitive-affective depression symptoms.1 Research Highlights ALS anxiety was measurable but not universal: Aiello et al. found clinically …

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Chronic Stress Increased Mouse D1 and D2 Dopamine Receptors

Stylized striatal dopamine receptor map in a mouse stress model, highlighting widespread D1 receptor binding increases and selective D2 changes after chronic mild stress.

Chronic stress is a candidate mechanism for both depression and addiction risk. A 2026 mouse study found that 28 days of unpredictable chronic mild stress increased striatal dopamine D1 receptor binding by 22–48% across nearly every region examined, plus more selective D2 receptor increases — pointing to a stress-driven shift in reward signaling that may …

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Apple Cider Vinegar for Psychotropic Weight Gain: 11 Cases

MHD featured image for apple cider vinegar capsules, psychotropic weight gain, metabolic side effects, and gut microbiome changes.

An 11-person case series tested delayed-release apple cider vinegar capsules in young adults who had gained weight while taking psychotropic medications, and metabolic markers carried more signal than weight loss. Research Highlights Feasibility was the strongest result: 11 of 12 enrolled participants completed the study, 10 of 11 completers missed 5 or fewer doses, and …

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Whole-Body Hyperthermia for Depression: IL-6 Heat Genes

Whole-body hyperthermia looks less like generic relaxation and more like a timed biological stressor: in a small depression substudy, a single session was followed by early Hamilton Depression Rating Scale improvement, heat-shock gene activation, and immune-process enrichment that included interleukin 6 production. Research Highlights Depression scores improved early: in the 18-person RNA sequencing substudy, whole-body …

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Cholestatic Liver Injury Alters Thalamus Fatigue Genes

MHD featured image for cholestatic liver disease, thalamus changes, fatigue, and TNF signaling.

A 2026 mouse study linked cholestatic liver injury to smaller thalamic volume than control injury-free mice, broad thalamus gene-expression changes, and partial pathway rescue after systemic tumor necrosis factor neutralization. Research Highlights Thalamic volume decreased: bile duct ligation (BDL; a mouse model of obstructive cholestatic liver injury) reduced thalamic volume vs. sham surgery by magnetic …

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