首页> 外文期刊>The Journal of Nutritional Biochemistry >The role of vitamin D receptor gene polymorphisms in the bone mineral density of Greek postmenopausal women with low calcium intake
【24h】

The role of vitamin D receptor gene polymorphisms in the bone mineral density of Greek postmenopausal women with low calcium intake

机译:维生素D受体基因多态性在低钙摄入希腊绝经后妇女骨矿物质密度中的作用

获取原文
获取原文并翻译 | 示例
       

摘要

The aim of this study was to investigate the effect of common vitamin D receptor (VDR) gene polymorphisms on the bone mineral density (BMD) of Greek postmenopausal women. Healthy postmenopausal women (n=578) were recruited for the study. The BMD of the lumbar spine and hip was measured using dual-energy X-ray absorptiometry with the Lunar DPX-MD device. Assessment of dietary calcium intake was performed with multiple 24-h recalls. Genotyping was performed for the Bsml, Taql and Cdx-2 polymorphisms of the VDR gene. The selected polymorphisms were not associated with BMD, osteoporosis or osteoporotic fractures. Stratification by calcium intake revealed that in the low calcium intake group (<680 mg/day), all polymorphisms were associated with the BMD of the lumbar spine (P<.05). After adjustment for potential covariates, Bsml and Taql polymorphisms were associated with the presence of osteoporosis (P<.05), while the presence of the minor A allele of Cdx-2 polymorphism was associated with a lower spine BMD (P=.025). In the higher calcium intake group (>680 mg/day), no significant differences were observed within the genotypes for all polymorphisms. The VDR gene is shown to affect BMD in women with low calcium intake, while its effect is masked in women with higher calcium intake. This result underlines the significance of adequate calcium intake in postmenopausal women, given that it exerts a positive effect on BMD even in the presence of negative genetic predisposition
机译:这项研究的目的是调查常见的维生素D受体(VDR)基因多态性对希腊绝经后妇女的骨矿物质密度(BMD)的影响。招募健康的绝经后妇女(n = 578)进行研究。腰椎和臀部的BMD使用Lunar DPX-MD设备使用双能X射线吸收法测量。通过多次24小时召回来评估饮食中钙的摄入量。对VDR基因的Bsml,Taql和Cdx-2多态性进行基因分型。所选的多态性与BMD,骨质疏松症或骨质疏松性骨折无关。钙摄入量分层显示,在低钙摄入量组(<680 mg /天)中,所有多态性均与腰椎的骨密度有关(P <.05)。调整潜在的协变量后,Bsml和Taql多态性与骨质疏松症的存在有关(P <.05),而Cdx-2多态性的次要A等位基因的存在与较低的脊柱BMD有关(P = .025) 。在高钙摄入组(> 680 mg /天)中,所有多态性的基因型之间均未观察到显着差异。已显示VDR基因会影响钙摄入量低的女性的BMD,而其作用却会被钙摄入量较高的女性掩盖。该结果强调了绝经后妇女摄入足够钙的重要性,因为即使存在遗传易感基因,它对BMD也具有积极作用。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号