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母乳是婴儿最理想的天然食品,不仅营养丰富、易于消化吸收,而且母乳中含有丰富的免疫物质,可增加婴儿的抵抗力,减少感染性疾病的发生。此外,母乳喂养对母亲也有不少好处。如此说来,是否每个婴儿都可吃母乳呢?现代医学研究发现,患以下三种疾病的孩子是不宜用母乳喂养的。苯丙酮尿症这是一种比较常见的氨基酸代谢异常的遗传性代谢缺陷病。患这种病的孩子应绝对禁止吃母乳,这是因为母乳中含有大量的苯丙氨酸,而患儿体内由于先天缺乏苯丙氨酸羟化酶,吃母乳后母乳中的苯丙氨酸就不能正常代谢为酪氨酸,只能转变为苯丙酮酸。大量苯丙氨酸及其代谢产物酮酸潴留在血液及脑脊液内,抑制多种酶的功能,造成婴儿神经系统的损害,其临床表现主要为智力低下,此外,患儿毛发金黄,皮肤白晰,虹膜色浅,像
Breast milk is the ideal natural baby food, not only nutritious, easy to digest and absorb, and breast milk is rich in immune substances, can increase the infant’s resistance and reduce the incidence of infectious diseases. In addition, breastfeeding also has many benefits for mothers. So, is every baby having breast milk? Modern medical research found that children with the following three diseases should not be breastfeeding. Phenylketonuria This is a common genetic abnormalities of amino acid metabolism of metabolic defects. Children suffering from this disease should be absolutely forbidden to eat breast milk, because breast milk contains a lot of phenylalanine, and children due to the inherent lack of phenylalanine hydroxylase, breast milk after eating milk in the phenylalanine It can not be normal metabolism of tyrosine, can only be converted to phenylpyruvate. A large number of phenylalanine and its metabolite keto acid retention in the blood and cerebrospinal fluid, inhibit the function of a variety of enzymes, resulting in infantile nervous system damage, the clinical manifestations of mainly mental retardation, in addition, children with golden hair, white skin Iris light color, like