In:
Diabetes Care, American Diabetes Association, Vol. 35, No. 5 ( 2012-05-01), p. 1133-1138
Abstract:
Low vitamin D status is common among healthy black and white adolescents residing at southern U.S. latitudes with a year-round sunny climate. Thus we aimed to study the relationships between circulating 25-hydroxyvitamin D [25(OH)D] and cardiometabolic risk factors in this population. RESEARCH DESIGN AND METHODS 25(OH)D concentrations were measured with liquid chromatography tandem mass spectroscopy in 701 girls and boys (14–18 years old, 54% blacks, 49% females). Cardiometabolic risk was indexed by adipokines, inflammatory markers, fasting glucose, homeostatic model assessment-insulin resistance (HOMA-IR), lipid profile, and blood pressure (BP). RESULTS Controlling for age, sex, race, sexual maturation, season, physical activity, and percent body fat, 25(OH)D concentrations were significantly correlated with adiponectin (r = 0.06, P = 0.05), leptin (r = −0.32, P & lt; 0.01), fibrinogen (r = −0.05, P = 0.03), glucose (r = −0.16, P = 0.02), HOMA-IR (r = −0.17, P & lt; 0.01), HDL cholesterol (r = 0.14, P = 0.02), systolic BP (r = −0.10, P = 0.02), and diastolic BP (r = −0.21, P & lt; 0.01). When 25(OH)D concentrations were stratified into increasing tertiles, there were significant linear upward trends for adiponectin (P = 0.01) and HDL cholesterol (P = 0.04), but significant linear down trends for glucose (P & lt; 0.01), HOMA-IR (P & lt; 0.01), and systolic BP (P & lt; 0.01), after adjusting for the above covariates. CONCLUSIONS Circulating 25(OH)D concentrations are associated with various adverse cardiometabolic risk factors, independent of adiposity. Clinical trials addressing the effects of vitamin D supplementation on cardiometabolic risk are warranted in adolescents irrespective of their geographical regions.
Type of Medium:
Online Resource
ISSN:
0149-5992
,
1935-5548
Language:
English
Publisher:
American Diabetes Association
Publication Date:
2012
detail.hit.zdb_id:
1490520-6
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