Association between MTHFR polymorphisms and acute myeloid leukemia risk: A meta-analysis

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Abstract

Previous observational studies investigating the association between methylenetetrahydrofolate reductase (MTHFR) polymorphisms and acute myeloid leukemia risk (AML) have yielded inconsistent results. The aim of this study is to derive a more precise estimation of the association between MTHFR (C677T and A1298C) polymorphisms and acute myeloid leukemia risk. PubMed and Embase databases were systematically searched to identify relevant studies from their inception to August 2013. Odds ratios (ORs) with 95% confidence intervals (CIs) were the metric of choice. Thirteen studies were selected for C677T polymorphism (1838 cases and 5318 controls) and 9 studies (1335 patients and 4295 controls) for A1298C polymorphism. Overall, pooled results showed that C677T polymorphism was not significant associated with AML risk(OR, 0.98-1.04; 95% CI, 0.86-0.92 to 1.09-1.25). Similar results were observed for the A1298C polymorphism and in subgroup analysis. All comparisons revealed no substantial heterogeneity nor did we detect evidence of publication bias. In summary, this meta-analysis provides evidence that MTHFR polymorphisms were not associated with AML risk. Further investigations are needed to offer better insight into the role of these polymorphisms in AML carcinogenesis.

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Qin, Y. T., Zhang, Y., Wu, F., Su, Y., Lu, G. N., & Wang, R. S. (2014). Association between MTHFR polymorphisms and acute myeloid leukemia risk: A meta-analysis. PLoS ONE, 9(2). https://doi.org/10.1371/journal.pone.0088823

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