A 76-person Nature Communications fMRI study found that people with major depressive disorder spent a higher share of time in a model-derived State 3 than healthy controls, 27.63 vs. 25.65, p(FDR) = 0.035, and State 3 occupancy correlated with QIDS depression severity, r2 = 0.268, p(FDR) = 0.008.1 The result points to altered brain-state transitions …
A 5-year PPMI cohort analysis found that lower serum uric acid independently predicted incident depression in prodromal Parkinson’s disease (HR = 0.776; 95% CI 0.619-0.974; P = 0.029).1 The signal sits beside a lower-p-value non-motor symptom predictor: higher MDS-UPDRS Part I scores also predicted depression (HR = 1.177; 95% CI 1.093-1.267; P < 0.001). Research ...
Sexual fantasies are not distributed randomly, but the pattern is subtler than popular personality stereotypes imply. In 5,225 adults, conscientiousness and agreeableness tracked lower fantasy frequency, while negative emotionality—especially the depression facet—tracked higher fantasy frequency across multiple fantasy domains.1 Research Highlights 5,225-person sample: Cannoot et al. analyzed adults with mean age 58.30 years; 56.5% were …
A 2026 analysis linked emotional disorders in heart failure to poorer cardiovascular health, oral-health burden, and oral microbiome dysbiosis, but the strongest mediation signal came from oral health rather than systemic immune-inflammation index.1 In fully adjusted NHANES models, emotional disorders were associated with lower Life’s Essential 8 cardiovascular health, OR 0.39, while self-rated oral health …
A 2026 Generation Scotland study linked traumatic physical injury to diagnosis-stratified blood methylation differences in 4,308 people.1 The clearest recurrent-depression signal pointed toward oxytocin signaling and synaptic-plasticity pathways, but the result is still exploratory pathway evidence rather than a blood test for depression or PTSD. Research Highlights Recurrent depression carried the strongest phenotype signal: traumatic …
A 2026 preclinical study found that 25C-NBF, a selective 5-HT2A psychedelic phenethylamine, increased plasticity-related markers and produced rapid antidepressant-like effects in male rodents, while showing no detected reward or reinforcement signal in the models tested. Research Highlights 25C-NBF was preclinical: Nadal-Gratacos et al. tested cells, male mice, and male rats, not patients with depression.1 5-HT2A …
A 2025 Journal of the American Chemical Society study identified 4 unusual Morganella morganii phospholipids that activated TLR2/TLR1 immune receptors and induced inflammatory cytokines, especially IL-6.1 The finding does not prove that one gut bacterium causes depression, but it gives the microbiome-depression field something it often lacks: a named molecule and a receptor pathway. Research …