Dataset Information

The SPO11-C631T gene polymorphism and male infertility risk: a meta-analysis.

ABSTRACT: To evaluate the association between the SPO11 gene C631T polymorphism and the risk of male infertility. We conducted a search on PubMed, Embase, Web of Science, Chinese National Knowledge Infrastructure (CNKI), China biology medical literature database (CBM), VIP, and Chinese literature database (Wan Fang) on 31 March 2016. Odds ratio (OR) and 95% confidence interval (95%CI) were used to assess the strength of associations. A total of five studies including 542 cases and 510 controls were involved in this meta-analysis. The pooled results indicated that the SPO11 gene C631T polymorphism was significantly associated with increased risk of male infertility (TT?+?CT vs. CC: OR?=?4.14, 95%CI?=?2.48-6.89; CT vs. CC: OR?=?4.34, 95%CI?=?2.56-7.34; T vs. C: OR?=?4.35, 95%CI?=?2.58-7.34). Subgroup analysis of different countries proved the relationship between SPO11 gene C631T polymorphism and male infertility risk in Chinese, but not in Iranian peoples. In conclusion, this study suggested that SPO11 gene C631T polymorphism may contribute as a genetic factor susceptible to cause male infertility. Furthermore, more large sample and representative population-based cases and well-matched controls are needed to validate our results.

SUBMITTER: Ren ZJ

PROVIDER: S-EPMC6014381 | biostudies-other | 2017 Nov

REPOSITORIES: biostudies-other

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The SPO11-C631T gene polymorphism and male infertility risk: a meta-analysis.

Ren Zheng-Ju ZJ Ren Peng-Wei PW Yang Bo B Liao Jian J Liu Sheng-Zhuo SZ Fang Kun K Ren Shang-Qing SQ Liu Liang-Ren LR Dong Qiang Q

Renal failure 20170104 1

To evaluate the association between the SPO11 gene C631T polymorphism and the risk of male infertility. We conducted a search on PubMed, Embase, Web of Science, Chinese National Knowledge Infrastructure (CNKI), China biology medical literature database (CBM), VIP, and Chinese literature database (Wan Fang) on 31 March 2016. Odds ratio (OR) and 95% confidence interval (95%CI) were used to assess the strength of associations. A total of five studies including 542 cases and 510 controls were involv ...[more]

PMID: 28050928

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Project description:BackgroundMethylenetetrahydrofolate reductase gene (MTHFR C677T and A1298C) and methionine synthase gene (MS A2756G) polymorphisms have shown an association with male infertility risk in several ethnic populations. Although several studies have evaluated these associations in Chinese populations, their small sample sizes and inconsistent outcomes have prevented strong conclusions. Therefore, the present meta-analysis was performed with published studies to evaluate the associations of the three single nucleotide polymorphisms (SNPs) and male infertility in a Chinese population.MethodsWe conducted a search of PubMed, Embase, Web of Science, Chinese National Knowledge Infrastructure (CNKI), China biology medical literature (CBM), VIP, and Chinese literature (Wan Fang) databases up to May 31, 2016. Odds ratios (ORs) and 95% confidence intervals (95%CIs) were used to assess the strength of associations with a random-effect model or a fixed-effect model based on the heterogeneity analysis results. Sensitivity analysis was used to confirm the reliability and stability of the meta-analysis.ResultsA total of nine studies, including 1,713 cases and 1,104 controls, were included in the meta-analysis. The pooled results indicated that the MTHFR C667T polymorphism was significantly associated with increased risk of male infertility in the Chinese population in the allele model (T vs. C: OR = 1.47, 95%CI = 1.32-1.63), the dominant model (TT + CT vs. CC: OR = 1.51, 95%CI = 1.30-1.77), the additive model (TT vs. CC: OR = 2.08, 95%CI = 1.68-2.58) and the recessive model (TT vs. CT+CC: OR = 1.58, 95%CI = 1.31-1.90), whereas the MTHFR A1298C and MS A2756G polymorphisms were not risk factors. There was no significant heterogeneity in any genotype contrasts among the studies. The sensitivity analysis indicated that the results of this meta-analysis were relatively stable.ConclusionThis study suggests that the MTHFR C667T polymorphism may contribute to the genetic susceptibility to male infertility in the Chinese population, whereas MTHFR A1298C and MS A2756G polymorphisms may be unrelated to male infertility. Studies with larger sample sizes and representative population-based cases and well-matched controls are needed to validate our results.

Dataset Information

The SPO11-C631T gene polymorphism and male infertility risk: a meta-analysis.

Publications

The SPO11-C631T gene polymorphism and male infertility risk: a meta-analysis.

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