Article
Gene-gene interaction between the cystathionine beta-synthase 31 base pair variable number of tandem repeats and the methylenetetrahydrofolate reductase 677C > T polymorphism on homocysteine levels and risk for neural tube defects.
Molecular genetics and metabolism - 1 Mar 2003
Afman Lydia A, Lievers Karin J A, Kluijtmans Leo A J, Trijbels Frans J M, Blom Henk J
Abstract excerpt
INTRODUCTION: Most studies showed that mothers of children with NTD have elevated homocysteine levels pointing to a disturbed homocysteine metabolism as a risk factor for NTD. Folate lowers homocysteine levels by remethylation of homocysteine to methionine. Homocysteine can be irreversibly converted to cystathionine by the vitamin B6-dependent enzyme CBS. Recently, our group showed that a 31 bp VNTR in the CBS...
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