Metabolism - Clinical and Experimental
Volume 52, Issue 3 , Pages 282-289, March 2003

Cholesteryl ester transfer protein and lecithin: Cholesterol acyltransferase activities in hispanic and anglo postmenopausal women: Associations with total and regional body fat☆☆☆

Department of Nutritional Sciences, University of Arizona, Tucson, AZ.

Received 8 January 2002; accepted 24 September 2002.

Current addresses: M.L.F., Department of Nutritional Sciences, College of Agriculture & Natural Resources, University of Connecticut, 3624 Horsebarn Rd Extension, U-17, Storrs, CT 06269-4017; L.A.M., Department of Human Performance and Fitness, University of Massachusetts-Boston, 100 Morrissey Blvd, Boston, MA 02125; D.J.M., Executive Director, Egg Nutrition Center, 1050 17th St, NW, Suite 560, Washington, DC 20036.

Abstract 

Reverse cholesterol transport is one process by which high-density lipoprotein (HDL) cholesterol has been hypothesized to play a role in reducing the risk of coronary heart disease. This study was designed to examine cholesteryl ester transfer protein (CETP) and lecithin:cholesterol acyltransferase (LCAT) activities, 2 modulators of reverse cholesterol transport, in Hispanic and Anglo postmenopausal women. The associations between plasma CETP and LCAT activities and body composition were also examined. Of the 199 subjects, 33% were of Hispanic origin and 47% were undergoing hormone replacement therapy (HRT). Body composition was measured by dual-energy x-ray absorptiometry (DXA) and anthropometry. Plasma CETP activity was higher in Hispanic compared to Anglo women, although the difference was eliminated when data were adjusted for abdominal fat. Hispanic women had lower plasma HDL cholesterol concentrations, higher total cholesterol:HDL cholesterol ratios and triglyceride concentrations, and greater susceptibility of low-density lipoprotein (LDL) particles to oxidation. Hispanic women also had a significantly greater relative deposition of body fat on the trunk and intra-abdominally than did Anglo women, even after adjusting for total body fat. There were no significant ethnic differences in LCAT activity. Plasma CETP and LCAT activities were negatively correlated with HDL cholesterol and positively correlated with total cholesterol, LDL cholesterol, and triglycerides, as well as total and regional body composition variables. In conclusion, results suggest a greater risk for coronary heart disease in Hispanic women compared to Anglo women. Copyright 2003, Elsevier Science (USA). All rights reserved.

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☆ Supported in part by a grant from the Arizona Disease Control Research Commission, Phoenix, AZ (9511) and by NIH Grant No. AR39939. Part of the research upon which this publication is based was performed pursuant to Contract No. N01-WH-3-201115 with the NIH, DHHS.

☆☆ Address reprint requests to Kathryn A. Greaves, PhD, DuPont Protein Technologies, Nutritional Sciences, PO Box 88940, St Louis, MO 63188.

PII: S0026-0495(02)05261-7

doi:10.1053/meta.2003.50045

Metabolism - Clinical and Experimental
Volume 52, Issue 3 , Pages 282-289, March 2003

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