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Exenatide affects circulating cardiovascular risk biomarkers independently of changes in body composition
Mathijs C Bunck1, Michaela Diamant, Bjorn Eliasson
1Department of Internal Medicine, Section of Endocrinology, Diabetes Center, VU University Medical Center, Amsterdam, the Netherlands. mcmbunck@vumc.nl
Objective:
To study the effect of exenatide on body composition and circulating cardiovascular risk biomarkers.
Research Design And Methods:
Metformin-treated patients with type 2 diabetes (N = 69) were randomized to exenatide or insulin glargine and treated for 1 year. Body composition was evaluated by dual-energy X-ray absorptiometry. Additionally, body weight, waist circumference, and cardiovascular biomarkers were measured.
Results:
Treatment with exenatide for 1 year significantly reduced body weight, waist circumference, and total body and trunkal fat mass by 6, 5, 11, and 13%, respectively. In addition, exenatide increased total adiponectin by 12% and reduced high-sensitivity C-reactive protein by 61%. Insulin glargine significantly reduced endothelin-1 by 7%. These changes were statistically independent of the change in total body fat mass and body weight.
Conclusions:
Exenatide treatment for 1 year reduced body fat mass and improved the profile of circulating biomarkers of cardiovascular risk. No significant changes were seen with insulin glargine except a trend for reduced endothelin-1 levels.
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