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MTR polymorphic variant A2756G and retinoblastoma risk in Brazilian children. | LitMetric

AI Article Synopsis

Article Abstract

Background: Polymorphisms in the genes of folate and methionine metabolism enzymes have been associated with some forms of cancer by affecting DNA synthesis, repair, and methylation.

Procedure: A case-control study of 72 retinoblastoma cases and 98 cancer-free children controls was performed to investigate whether the polymorphisms of the methylenetetrahydrofolate reductase (MTHFR C677T and A1298C), methionine synthase (MTR A2756G), carrier of reduced folate 1 (RFC-1 A80G) and thymidylate synthase (TYMS 2R > 3R) altered the risk for retinoblastoma.

Results: MTR A2756G AG plus GG genotype frequencies were higher in patients than in controls (45% vs. 26%, P = 0.03). Individual carriers of the variant allele G had a 2.02 (95% CI: 1.05-3.92)-fold increased risk for retinoblastoma. In contrast, no association was observed with respect to MTHFR C677T and A1298C, RFC A80G, and TYMS polymorphisms.

Conclusions: This study presents evidence for an association between the MTR A2756G polymorphism and retinoblastoma susceptibility in a Northeast population from Brazil.

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Source
http://dx.doi.org/10.1002/pbc.22472DOI Listing

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