Endocrinol Metab > Volume 21(6); 2006 > Article
Journal of Korean Endocrine Society 2006;21(6):506-514.
DOI: https://doi.org/10.3803/jkes.2006.21.6.506    Published online December 1, 2006.
Effect of Weight Loss on Endothelial Function in Obese Premenopausal Women.
Se Woong Ma, Se Hwa Kim, Hyo Sung Nam, Kee Myoung Jung, Byung Hyun Yu, Yong Ju Lee, Seok O Park, Sung Kil Lim
1Department of Internal Medicine, Gwangmyung Sung-Ae General Hospital, Korea.
2Department of Internal Medicine, Yonsei University College of Medicine, Korea.
Endothelial dysfunction, a pathological feature of obesity, can predict the occurrence of cardiovascular disease. The endothelial function was compared in obese, non-obese, and type 2 diabetic women, and the effect of weight loss on endothelial function in obese premenopausal women was also investigated. METHODS: Twenty type 2 diabetes patients, 35 obese and 20 non-obese non-diabetic subjects were recruited. Both the endothelium-dependent vasodilation (EDV) and endothelium-independent vasodilation (EIV) were measured. The body composition, serum lipid, serum adiponectin and resistin were also measured. Weight loss in obese women was obtained by 6 months of calorific restriction, aerobic exercise and medication (sibutramine or orlistat). RESULTS: EDV was significantly impaired in the type 2 diabetes and obese groups compared to the control group (6.0 +/- 1.3% in diabetes group, 6.7 +/- 3.9% in obese group, 12.4 +/- 4.1% in control group, P < 0.01, respectively). The mean weight loss after 6 months was 8.5 +/- 3.2 kg (P < 0.001) in the obese group. There was a significant increase in EDV after weight loss (from 5.8 +/- 3.5% to 12.3 +/- 3.9%, P < 0.05). There was no change in EIV after weight loss. In addition, weight loss was associated with significant reductions in the levels of high-sensitivity C-reactive protein (hs-CRP) and serum triglyceride (P < 0.05, respectively). However, there were no significant changes in the serum adiponectin and resistin levels after weight loss. CONCLUSIONS: Our data demonstrated that weight loss was associated with improved endothelial function in obese premenopausal women, as assessed by brachial artery EDV and reduced hs-CRP.
Key Words: Adipocytokine, Endothelium-dependent vasodilation, Endothelium-independent vasodilation, Obesity, Weight loss

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