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首页> 外文期刊>Genetic testing and molecular biomarkers >Association of uridine diphosphate-glucuronosyltransferase 2B gene variants with serum glucuronide levels and prostate cancer risk
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Association of uridine diphosphate-glucuronosyltransferase 2B gene variants with serum glucuronide levels and prostate cancer risk

机译:尿苷协会diphosphate-glucuronosyltransferase 2 b基因变异与血清和葡糖苷酸水平患前列腺癌的风险

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Uridine diphosphate-glucuronosyltransferase 2B (UGT2B) enzymes conjugate testosterone metabolites to enable their excretion in humans. The functional significance of the UGT2B genetic variants has never been described in humans. We evaluated UGT2B variants in relation to plasma androstane-3α,17β-diol-glucuronide (AAG) levels and the prostate cancer risk. Results: AAG levels were measured in sera from 150 controls and compared to the polymorphisms of UGT2B17, UGT2B15, and UGT2B7. Genomic DNA from controls (301) and cases (148) was genotyped for the polymorphisms, and odds ratios (ORs) and 95% confidence intervals (95% CIs) were calculated using unconditional logistic regression analyses. Having two copies of UGT2B17 was associated with higher AAG levels in controls among Whites (p=0.02), but not Blacks (p=0.82). Logistic regression models adjusting for age and race revealed that homozygosity for the G allele of the UGT2B15D85Y polymorphism was directly associated with the prostate cancer risk (OR=2.70, 95% CI=1.28, 5.55). Conclusions: While the small sample size limits inference, our findings suggest that an association between the UGT2B17 copy number variant (CNV) and serum AAG levels in Whites, but unexpectedly not in Blacks. This novel observation suggests that genetic determinants of AAG levels in Blacks are unrelated to the UGT2B17 CNV. This study replicates the results that show an association of UGT215D85Y with an increased prostate cancer risk.
机译:尿苷diphosphate-glucuronosyltransferase 2 b(UGT2B)酶共轭睾酮在人类代谢产物,使其排泄。UGT2B基因的功能意义变异人类从未被描述。评估UGT2B变异与等离子体androstane-3α,17β-diol-glucuronide(亚美大陆煤层气有限公司)的水平患前列腺癌的风险。从150年控制和测量血清吗相比UGT2B17基因的多态性UGT2B15, UGT2B7。(301)和例(148)是基因分型多态性,优势比(ORs)和95%95%置信区间(CIs)计算使用无条件的逻辑回归分析。有两份UGT2B17基因是联系在一起的亚美大陆煤层气有限公司高水平控制白人(p = 0.02),但不是黑人(p = 0.82)。回归模型调整了年龄和种族表明G等位基因的纯合性UGT2B15D85Y多态性是直接的与前列腺癌相关的风险(或= 2.70,95% CI = 1.28, 5.55)。小样本大小限制推断,我们的研究结果表明,一个协会之间的UGT2B17基因拷贝数变异(CNV)和血清亚美大陆煤层气有限公司白人的水平,但意外不是黑人。这部小说的观察表明,遗传在黑人亚美大陆煤层气有限公司水平的决定因素与UGT2B17的CNV无关。复制的结果显示一个协会的UGT215D85Y增加前列腺癌风险。

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