Study links depression to accumulation of visceral fatApril 29th, 2009 - 2:51 pm ICT by ANI
Washington, Apr 29 (ANI): In a new study, Rush University Medical Center scientists have shown that depression is linked with the accumulation of visceral fat - the kind of fat packed between internal organs at the waistline.
Visceral fat has long been known to increase the risk of cardiovascular disease and diabetes.
The latest study will be published in the May issue of Psychosomatic Medicine.
“Our results suggest that central adiposity - which is commonly called belly fat - is an important pathway by which depression contributes to the risk for cardiovascular disease and diabetes,” said Lynda Powell, PhD, chairperson of the Department of Preventive Medicine at Rush and the study’s principal investigator.
“In our study, depressive symptoms were clearly related to deposits of visceral fat, which is the type of fat involved in disease,” the expert added.
The study included 409 middle-aged women, about half African-American and half Caucasian, who were participating in the Women in the South Side Health Project (WISH) in Chicago, a longitudinal study of the menopausal transition. Depressive symptoms were assessed using a common screening test, and visceral fat measured with a CT scan. Although waist size is often used as a proxy for the amount of visceral fat, it is an inaccurate measure because it includes subcutaneous fat, or fat deposited just beneath the skin.
The researchers found a strong correlation between depression and visceral fat, particularly among overweight and obese women. The results were the same even when the analysis adjusted for other variables that might explain the accumulation of visceral fat, such as the level of physical activity. The study found no association between depressive symptoms and subcutaneous fat.
The findings were the same for both black and white women.
Powell speculated that depression triggers the accumulation of visceral fat by means of certain chemical changes in the body - like the production of cortisol and inflammatory compounds - but said that more research is needed to pinpoint the exact mechanism. (ANI)
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Tags: black and white women, center scientists, central adiposity, chemical changes, depressive symptoms, health project, inaccurate measure, internal organs, lynda powell, menopausal transition, middle aged women, obese women, preventive medicine, psychosomatic medicine, risk of cardiovascular disease, rush university, screening test, side health, university medical center, waist size