Abstract
The 677C-->T allele in the 5,10-methylenetetrahydrofolate reductase (MTHFR) gene has been implicated in the etiology of nonsyndromic cleft lip and palate (CL/P). This study involved a family-based association study of the MTHFR polymorphism. We examined 181 patients with CL/P of central European descent and their parents for this variant. The transmission disequilibrium test (TDT) did not confirm an association between the MTHFR 677C-->T polymorphism and nonsyndromic CL/P as previously suggested (p = .36). When comparing the offspring of mothers with periconceptional use of folate to those without, no statistically significant differences were found (p = .708). Our data suggest that the MTHFR 677C-->T polymorphism does not make a major contribution to the occurrence of CL/P among central Europeans.
Published Version
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