Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/105183
Title: Insulin-like growth factor binding protein-1 is independently affected by ethnicity, insulin sensitivity, and leptin in healthy, glucose-tolerant young men
Authors: Liew, C.F.
Wise, S.D.
Yeo, K.P. 
Lee, K.O.
Issue Date: Mar-2005
Citation: Liew, C.F., Wise, S.D., Yeo, K.P., Lee, K.O. (2005-03). Insulin-like growth factor binding protein-1 is independently affected by ethnicity, insulin sensitivity, and leptin in healthy, glucose-tolerant young men. Journal of Clinical Endocrinology and Metabolism 90 (3) : 1483-1488. ScholarBank@NUS Repository.
Abstract: We examined the relationships among IGF binding protein (IGFBP)-1, insulin sensitivity, and leptin in different ethnic groups (Asian Indians, Chinese, and Caucasians) using the euglycemic hyperinsulinemic clamp. Ten healthy, young and nondiabetic subjects of each ethnic group, matched for body mass index, age, and physical activity were studied. A euglycemic clamp was performed on all subjects. IGFBP-1, insulin, and leptin were measured after fasting and during the clamp. Fasting IGFBP-1 concentration was highest in Chinese (P = 0.027). Asian Indians had the lowest insulin sensitivity index (P = 0.006). The ratio of insulin to IGFBP-1 at fasting and throughout the euglycemic clamp was higher in Asian Indians. Fasting IGFBP-1 had a strong negative correlation with fasting leptin levels (r = -0.715, P = 0.001). Multiple linear regression demonstrated that fasting insulin, leptin, ethnicity, and insulin sensitivity were significant predictors for fasting IGFBP-1. IGFBP-1 is independently determined by ethnicity, insulin sensitivity, and leptin in glucose-tolerant men. The presence of relative insulin resistance and low fasting IGFBP-1 levels in Asian Indians may contribute to their higher risk of developing diabetes and cardiovascular disease. Copyright © 2005 by The Endocrine Society.
Source Title: Journal of Clinical Endocrinology and Metabolism
URI: http://scholarbank.nus.edu.sg/handle/10635/105183
ISSN: 0021972X
Appears in Collections:Staff Publications

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