Vitamin D status in relation to glucose metabolism and type 2 diabetes in septuagenarians.
Vitamin D status in relation to glucose metabolism and type 2 diabetes in septuagenarians.
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DOI:
10.2337/dc10-2084
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发表时间:
2011-06
期刊:
影响因子:
16.2
通讯作者:
Grandjean P
中科院分区:
文献类型:
--
作者:
Dalgård C;Petersen MS;Weihe P;Grandjean P
Vitamin D deficiency is thought to be a risk factor for development of type 2 diabetes, and elderly subjects at northern latitudes may therefore be at particular risk. Vitamin D status was assessed from serum concentrations of 25-hydroxyvitamin D3 [25(OH)D3] in 668 Faroese residents aged 70–74 years (64% of eligible population). We determined type 2 diabetes prevalence from past medical histories, fasting plasma concentrations of glucose, and/or glycosylated hemoglobin (HbA1c). We observed 70 (11%) new type 2 diabetic subjects, whereas 88 (13%) were previously diagnosed. Having vitamin D status <50 nmol/L doubled the risk of newly diagnosed type 2 diabetes after adjustment for BMI, sex, exposure to polychlorinated biphenyls, serum triacylglyceride concentration, serum HDL concentration, smoking status, and month of blood sampling. Furthermore, the HbA1c concentration decreased at higher serum 25(OH)D3 concentrations independent of covariates. In elderly subjects, vitamin D sufficiency may provide protection against type 2 diabetes. Because the study is cross-sectional, intervention studies are needed to elucidate whether vitamin D could be used to prevent development of type 2 diabetes.
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