Folate and vitamin B-12 in idiopathic male infertility
Although methylenetetrahydrofolate reductase, a folate enzyme gene, has been associated with idiopathic male infertility, few studies have examined other folate-related metabolites and genes. We investigated whether idiopathic male infertility is associated with variants in folate, vitamin B-12 (B12) and total homocysteine (tHcy)-related genes and measured these metabolites in blood. We conducted