Vitamin D is associated with atheroprotective high-density lipoprotein profile in postmenopausal women

被引:50
作者
Kazlauskaite, Rasa [1 ]
Powell, Lynda H. [1 ]
Mandapakala, Chaitanya [1 ]
Cursio, John F. [1 ]
Avery, Elizabeth F. [1 ]
Calvin, James [2 ]
机构
[1] Rush Univ, Med Ctr, Dept Prevent Med, Chicago, IL 60612 USA
[2] Rush Univ, Med Ctr, Cardiol Sect, Chicago, IL 60612 USA
关键词
Cardiovascular risk; High-density lipoprotein cholesterol; Metabolic syndrome; Reverse cholesterol transport; Vitamin D; PARATHYROID-HORMONE LEVELS; 1,25-DIHYDROXYVITAMIN-D LEVELS; SERUM; 25-HYDROXYVITAMIN-D; METABOLIC SYNDROME; ADIPOSE-TISSUE; RISK; PREVALENCE; DISEASE; SIZE;
D O I
10.1016/j.jacl.2010.01.006
中图分类号
R9 [药学];
学科分类号
1007 ;
摘要
BACKGROUND: Low vitamin D has been associated with low levels of high-density lipoprotein (HDL) cholesterol, a marker of coronary risk. Whether atheroprotective HDL particle composition accounts for this association and whether fat affects this association is not known. OBJECTIVE: To explore the association between HDL particle composition and 25-hydroxy vitamin D (25[OH]D) in post-menopausal women. METHODS: Vitamin D levels and lipoprotein composition were assessed in fasting blood samples of apparently healthy women from a diverse Chicago community. Visceral (VAT) and subcutaneous (SAT) abdominal fat area were assessed using computed tomography. Total body fat mass was measured by dual-energy X-ray absorptiometry. RESULTS: We enrolled 78 women (50% black; 50% white), age 48 to 64 years, all of whom were participants in a longitudinal study of fat patterning. They had a mean 25[OH]D of 31 +/- 15 mu g/L, HDL cholesterol 57 +/- 11 mg/dL, and large HDL particle subclass 8.6 +/- 3.4 mu mol/L. In a multivariable-adjusted regression model, each 5 mu g/L higher 25[OH]D predicted 0.57 mu mol/L (95%CI 0.20-0.95) higher large HDL particles, independent of race, season, and total HDL particle concentration. This association was only partially confounded by total body fat mass (0.49, 95%CI 0.10-0.89), SAT (0.50, 95%CI 0.11-0.90), or VAT (0.37, 95%CI 0.01-0.74). Age did not significantly influence the strength of associations. CONCLUSIONS: Higher 25[OH]D levels are associated with large HDL particles. This association is stronger than that of HDL cholesterol and only partially confounded by body fat. Theoretically, vitamin D may protect against cardiovascular risk by promoting formation of large HDL particles, affecting reverse cholesterol transport. (C) 2010 National Lipid Association. All rights reserved.
引用
收藏
页码:113 / 119
页数:7
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