Human reproduction (Oxford, England) · 2003
Gene-gene interaction between fetal MTHFR 677C>T and transcobalamin 776C>G polymorphisms in human spontaneous abortion.
СтатьяПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод в очереди
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Zetterberg Henrik, Zafiropoulos Alexis, Spandidos Demetrios A, Rymo Lars, Blennow Kaj
Аннотация
BACKGROUND: Genetic polymorphisms in the methylenetetrahydrofolate reductase (MTHFR) and transcobalamin (TC) genes influence homocysteine metabolism which in turn may influence the risk of spontaneous abortion. It was hypothesized that there may be a significant interaction between MTHFR and TC genotypes which affects the pathogenesis of spontaneous abortion.
METHODS AND RESULTS: A total of 76 fetal tissue samples from spontaneous abortions between weeks 6 and 20 of pregnancy, and 114 control samples from healthy blood donors were genotyped for the MTHFR 677C>T and 776C>G polymorphisms. Subjects with combined MTHFR 677TT/TC 776GG and combined MTHFR 677TT/TC 776CG genotypes gave an odds ratio for spontaneous abortion of 3.8 (95% confidence interval 1.4-9.9, P = 0.005).
CONCLUSIONS: Embryos that have combined MTHFR 677TT and TC 776CG or 776GG genotypes; genotypes that individually are associated with impaired homocysteine metabolism in adults, are at increased risk for spontaneous abortion compared with embryos that have only one of these genotypes.
METHODS AND RESULTS: A total of 76 fetal tissue samples from spontaneous abortions between weeks 6 and 20 of pregnancy, and 114 control samples from healthy blood donors were genotyped for the MTHFR 677C>T and 776C>G polymorphisms. Subjects with combined MTHFR 677TT/TC 776GG and combined MTHFR 677TT/TC 776CG genotypes gave an odds ratio for spontaneous abortion of 3.8 (95% confidence interval 1.4-9.9, P = 0.005).
CONCLUSIONS: Embryos that have combined MTHFR 677TT and TC 776CG or 776GG genotypes; genotypes that individually are associated with impaired homocysteine metabolism in adults, are at increased risk for spontaneous abortion compared with embryos that have only one of these genotypes.