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Circulating levels of vitamin D vitamin D receptor polymorphisms and colorectal adenoma: a meta-analysis

机译:维生素D维生素D受体多态性和结直肠腺瘤的循环水平:荟萃分析

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摘要

Growing evidence suggests an elevated risk for colorectal neoplasia among individuals with low levels of vitamin D, the biological actions of which are mediated by the vitamin D receptor (VDR). To investigate the association among vitamin D status, VDR polymorphisms (FokI, and BsmI), and colorectal adenoma, we conducted a meta-analysis of nine studies of circulating levels of 25-hydroxyvitamin D (25(OH)D) and five studies of FokI or BsmI polymorphisms in relation to colorectal adenomas. Study-specific relative risks (RRs) and 95% confidence intervals (CIs) were pooled using a random-effects model. A total of 3398 colorectal adenomas for 25(OH)D and 1754 colorectal adenomas for VDR were included in the meta-analysis. We identified a significant inverse association between colorectal adenoma (combined RR, 0.93; 95% CI, 0.87-0.98 per 10 ng/mL increase in 25(OH)D levels). When we examined FokI and BsmI polymorphisms in the meta-analysis, we found no association for either FokI (combined RR, 1.00; 95% CI, 0.95-1.06) or BsmI (combined RR, 0.99; 95% CI, 0.93-1.05) in the additive model. These data suggest an inverse association between circulating 25(OH)D levels and colorectal adenoma risk.
机译:越来越多的证据表明,维生素D水平低的个体中结直肠肿瘤的风险升高,而维生素D的生物活性是由维生素D受体(VDR)介导的。为了研究维生素D状态,VDR多态性(FokI和BsmI)与结直肠腺瘤之间的关联,我们对9种循环水平的25-羟基维生素D(25(OH)D)的研究进行了荟萃分析,对5种维生素D的研究进行了荟萃分析。与结直肠腺瘤有关的FokI或BsmI多态性。使用随机效应模型汇总研究特定的相对风险(RRs)和95%置信区间(CIs)。荟萃分析共包括25(OH)D的3398例结肠直肠腺瘤和VDR的1754例结肠直肠腺瘤。我们发现大肠腺瘤之间存在显着的负相关性(25(OH)D水平每升高10 ng / mL,总RR,0.93; 95%CI,0.87-0.98)。当我们在荟萃分析中检查FokI和BsmI多态性时,发现与FokI(合并RR,1.00; 95%CI,0.95-1.06)或BsmI(合并RR,0.99; 95%CI,0.93-1.05)均没有关联。在加性模型中。这些数据表明循环25(OH)D水平与结直肠腺瘤风险之间呈负相关。

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