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
Grandjean P
中科院分区:
医学1区
文献类型:
--
作者:
Dalgård C;Petersen MS;Weihe P;Grandjean P

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维生素D缺乏被认为是2型糖尿病的一个危险因素,因此北纬地区的老年人可能特别危险。通过25-羟基维生素D3 [25(OH)D3]的血清浓度评估668名70-74岁法罗群岛居民(占合格人口的64%)的维生素D状态。我们通过既往病史、空腹血浆葡萄糖浓度和/或糖化血红蛋白(HbA1c)来确定2型糖尿病的患病率。我们观察到70例(11%)新发2型糖尿病患者,而88例(13%)以前被诊断过。在调整BMI、性别、多氯联苯暴露、血清甘油三酯浓度、血清高密度脂蛋白浓度、吸烟状况和采血月份后,维生素D水平<50 nmol/L的人患新诊断的2型糖尿病的风险增加了一倍。此外,与协变量无关,血清25(OH)D3浓度越高,HbA1c浓度越低。在老年人中,充足的维生素D可以预防2型糖尿病。由于这项研究是横断面的,需要进行干预研究来阐明维生素D是否可以用来预防2型糖尿病的发展。
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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