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妇女在围受孕期补充叶酸能降低分娩神经管缺陷儿的危险性。妇女的维生素B_(12)(简称B_(12))低于正常其怀神经管缺陷儿的危险性可能也增加。高半胱氨酸向蛋氨酸转化是人体内唯一的同时需要B_(12)和叶酸盐作为辅助因子的反应。那么,高半胱氨酸代谢异常是否
Women during pregnancy to supplement folic acid can reduce the risk of childbirth neural tube defects. Women’s vitamin B_ (12) (referred to as B_ (12)) lower than normal risk of neural tube defects in children may also increase the risk. The conversion of homocysteine to methionine is the only reaction in humans that requires both B 12 and folate as cofactors. So, whether homocysteine metabolism is abnormal or not