新近的工作提示在妊娠前后给母亲补充维生素可以促进胚胎神经管封闭。较早的一篇报告证明分娩神经管缺陷婴儿的母亲,在头三个月维生素C与叶酸水平明显地低于无缺陷婴儿的母亲。但是,所有神经管缺陷母亲红细胞叶酸水平低下,这些总是不能和低 Recent work suggests that supplementing mothers with vitamins before and after pregnancy can promote embryonic neural tube closure. An earlier report demonstrated that mothers of childbirths with neural tube defects had significantly lower levels of vitamin C and folic acid in the first trimester than mothers of non-defective infants. However, all neural tube defects in mothers with low levels of erythrocyte folate can not always be associated with low