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  • Title: Effects of visceral adipose tissue reduction on CVD risk factors independent of weight loss: The Look AHEAD study.
    Author: Sanguankeo A, Lazo M, Upala S, Brancati FL, Bonekamp S, Pownall HJ, Balasubramanyam A, Clark JM, Fatty Liver Subgroup of the Look AHEAD Research Group.
    Journal: Endocr Res; 2017 May; 42(2):86-95. PubMed ID: 27351077.
    Abstract:
    OBJECTIVES: To determine if the reduction of visceral adipose tissue (VAT) volume by lifestyle intervention improved risk factors for cardiovascular disease (CVD) independent of weight loss amount. DESIGN: Ancillary study of randomized-controlled trial. SETTING: Data analysis using multivariable regression models. PARTICIPANTS: Participants of the Look AHEAD (Action for HEAlth in Diabetes) Fatty Liver Ancillary Study. MAIN OUTCOME MEASURES: Correlations between changes in VAT and in CVD risk factors, while adjusting for weight loss and treatment (intensive lifestyle intervention [ILI] vs. diabetes support and education [DSE]). RESULTS: Of 100 participants analyzed, 52% were women, and 36% were black, with a mean age of 61.1 years. In the DSE group, mean weight and VAT changed by 0.1 % (p=0.90) and 4.3% (p=0.39), respectively. In the ILI group, mean weight and VAT decreased by 8.0% (p<0.001) and 7.7% (p=0.01), respectively. Across both groups, mean weight decreased by 3.6% (p<0.001), and mean VAT decreased by 1.2% (p=0.22); the decrease in VAT was correlated with the increase in HDL-cholesterol (HDL-C; R=-0.37; p=0.03). There were no correlations between changes in VAT and blood pressure, triglycerides, LDL-C, glucose, or HbA1c. After adjusting for age, race, gender, baseline metabolic values, fitness, and treatment group, changes in HDL-C were not associated with changes in VAT, while weight changes were independently associated with decrease in glucose, HbA1c, and increase in HDL-C. CONCLUSIONS: VAT reduction was not correlated with improvements of CVD risk factors in a sample of overweight and obese adults with type 2 diabetes after adjusting for weight loss.
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