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Risk Of Insulin Resistance Increases With Fat Build-Up On Chest And Upper Back, HIV Study Shows

Upper trunk fat -- deposits of fat on the chest and back -- is associated with an increased risk of insulin resistance, a condition that is a precursor of type 2 diabetes, according to a study led by researchers at the San Francisco VA Medical Center (SFVAMC).

It is the first time such an association has been demonstrated, say the researchers.

The association was equally strong in both HIV infected subjects and HIV negative control subjects in the Study of Fat Redistribution and Metabolic Change in HIV Infection (FRAM), a national long-term longitudinal study of HIV infected people taking modern antiretroviral therapy and HIV negative controls.

The presence of visceral fat, which is located between and around the internal organs, was also associated with an increased risk of insulin resistance in both populations. The researchers found that each type of fat contributes independently to insulin resistance whether or not the other type is present.

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