从碘与地方性克汀病的流行病学和临床资料来看,在妊娠早期纠正缺碘可以有效地预防缺碘母亲生产克汀病婴儿,并能促进其中枢神经系统发声。近年来的动物实验表明:在胚胎早期,特别是在甲状牌功能出现以前,碘似乎对中枢神经系统的正常发育起着重要的作用,严重缺碘饮食喂养后所生出的羔羊,其脑发育比甲状腺切除后的羔羊还 From the epidemiological and clinical data of iodine and endemic cretinism, correcting iodine deficiency early in pregnancy can effectively prevent iodine-deficient mothers from producing cretinism and promote their central nervous system vocalization. In recent years, animal experiments show that iodine appears to play an important role in the normal development of the central nervous system in the early embryo, especially before the appearance of the A-shaped card. The lambs born after severe iodine deficiency diet have brain development Than after the thyroid resection of the lamb also