Mental Disorders

Genes Associated with Depression

A genome-wide association meta-analysis identified 44 independent and significant loci associated with major depression. The analysis was based in 135,458 cases and 344,901 controls. Lower educational attainment and higher body mass were putatively causal, whereas major depression and schizophrenia reflected a partly shared biological etiology. All humans carry lesser or greater numbers of genetic risk factors for major depression. These findings help refine the basis of major depression and imply that a continuous measure of risk underlies the clinical phenotype. Previous study with twins suggests that genetics explains about 40% of depression, with the rest being driven by other biological factors and life experiences. Source: https://www.nature.com/

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