Background: The relation between methylenetetrahydrofolate reductase)MTHFR(polymorphisms and the risk of developing Chronic lymphocytic leukemia (CLL) is not still clear, while there are reports about the association of C677T and A1298C polymorphisms with developing CLL, there are other reports that rolled out the association of MTHFR polymorphisms with developing CLL. Therefore herein we carried out this meta-analysis to clear the association of polymorphisms with the risk of CLL.
Methods: A comprehensive search was performed through PubMed, Scopus and Embase from inception to Aug 2020. Odds ratios (OR) with their corresponding 95% confidence intervals (CI) for five possible genetic models were calculated. Heterogeneity was evaluated using the Cochran Q test and the I2 statistic.
Results: Totals of 1290 cases and 1887 controls for the C677T polymorphism and 1117 cases and 1256 controls for the A1298C polymorphism were included in our analysis. Analyzing the C677T and A1298C polymorphisms genotypes showed an association between polymorphism at A1298C under Allelic model and the risk of CLL (OR = 1.12, 95% CI = 1.01-1.25), however there was no association between polymorphism at C677T and risk of CLL.
Conclusion: The risk of developing CLL might be associated with polymorphism at A1298C under allelic model and not associated with polymorphisms at C677T, However, further studies considering other factors such as age, gender, ethnicity, gene-gene interaction and environmental condition are needed to clear the true association of polymorphisms with CLL.
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| http://dx.doi.org/10.18502/ijph.v50i1.5074 | DOI Listing |
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