Depression and one carbon metabolic pathway: A study among a mendelian population from North India

Abstract

Depression is multi-factorial in origin and results from intricate mechanisms with no single identifiable risk factor. The present study is a cross-sectional study, conducted among 808 participants aged 30–70 years from a single mendelian, largely vegetarian population from North India. Socio- demographic and depression status were assessed through standard interview schedule among recruited individuals. Chemi- luminescence Immunoassay technique by Immulite®1000 is used to analyse homocysteine, folate and vitamin B12 levels. Of the total studied subjects, 31.1% were found to be having depression with higher rate among females (35.7%) compared to males (24.6%) (p = 0.002). Hyperhomocysteinemia and folate deficiency were found to pose an increased risk for moderate/ severe depression, though not significant. Folate repletion was playing a compensatory role for vitamin B12 deficiency among depressed individuals. MTHFR C677T gene polymorphism was not associated with depression in the present study.