MentalHealthDaily

NOS3 TT Variant Linked to 1.72x Cognitive Risk in First-Episode Depression

by GLOOM

A 2026 cross-sectional study of 519 older adults with first-episode depression found that the NOS3 rs1799983 TT genotype was independently associated with cognitive impairment, adjusted OR 1.720 (95% CI 1.027-2.882).1 The result is strongest as a vascular-inflammation clue, not as a ready clinical genetic test. Research Highlights TT genotype carried the headline signal: in multivariable …

Genetics of Major Depression vs. Symptom Scales (PHQ-9 & CIDI-SF) (2023 Study)

by GLOOM

Major Depressive Disorder (MDD) presents a significant challenge in mental health, with its complex genetic and symptomatic landscape. Recent research focusing on the UK Biobank data has compared the genetic underpinnings of MDD symptoms assessed by the PHQ-9 and CIDI-SF tools. This comparison has highlighted significant differences in their genetic correlations and implications for understanding …