Genome-wide association study of comorbid depressive syndrome and alcohol dependence.
Edwards AC, Aliev F, Bierut LJ et al.
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Abstract
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Objective: Depression and alcohol dependence (AD) are common psychiatric disorders that often co-occur. Both disorders are genetically influenced, with heritability estimates in the range of 35-60%. In addition, evidence from twin studies suggests that AD and depression are genetically correlated. Herein, we report results from a genome-wide association study of a comorbid phenotype, in which cases meet the Diagnostic and Statistical Manual of Mental Disorders-IV symptom threshold for major depressive symptomatology and the Diagnostic and Statistical Manual of Mental Disorders-IV criteria for AD.
467 European ancestry cases, 407 European ancestry controls
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