UCP1 and UCP3 Expression Is Associated with Lipid and Carbohydrate Oxidation and Body Composition.

Background/objective: Uncoupling proteins (UCPs) are located in the inner membrane of mitochondria. These proteins participate in thermogenesis and energy expenditure. This study aimed to evaluate how UCP1 and UCP3 expression influences substrate oxidation and elicits possible changes in body composition in patients submitted to bariatric surgery.