MTHFR 677TT alone and IRF6 820GG together with MTHFR 677CT, but not MTHFR A1298C, are risks for nonsyndromic cleft lip with or without cleft palate in an Indian population.
Infant and parental MTHFR C677T and MTHFR A1298Cgenotypes and haplotypes were not associated with CL(P) risk in the case-control and transmission disequilibrium test analyses.