Journal
PSYCHOSOMATIC MEDICINE
Volume 65, Issue 3, Pages 490-497Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/01.PSY.0000041545.52924.82
Keywords
depression; metabolic syndrome; twins; cardiovascular disease; diabetes; cholesterol
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Objective: To determine the extent to which depressive symptoms are associated with metabolic risk factors and whether genetic or environmental factors account for this association. Method: Twin structural equation modeling was employed to estimate genetic and environmental contributions to the covariation of depressive symptoms, as indexed by the Centers for Epidemiological Studies-Depression Scale, and common variance among blood pressure, body mass index, waist-to-hip ratio, and serum triglycerides and glucose among 87 monozygotic and 86 dizygotic male twin pairs who participated in the NHLBI twin study. Results: Depressive symptoms were associated with individual components of the metabolic syndrome and common variance among the risk factors. Twin structural equation modeling indicated that the associations were attributable to environmental (nongenetic) factors. Conclusions: These results support the hypothesis that depressive symptoms may increase risk for a pattern of physiological risk consistent with the metabolic syndrome.
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