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哺乳动物的孕卵对放射线和化学物质极度敏感,少量射线即可使孕卵死亡,但未被致死的孕卵,其胎儿发育完全正常,不发生畸形。如孕卵在着床前死亡,母体常常无任何症状,和未妊娠完全一样。人类的孕卵着床前死亡与环境因素有关,是造成不孕症的原因之一,目前已成为重要的研究课题,WHO亦已经进行了认真研究。孕卵不仅对放射线极敏感,对家庭广泛使用的洗涤剂等化学物质亦极敏感,都是诱发死亡的原因,这对妇女来说,是一个严重问题。一、实验研究作者用小白鼠研究了哺乳动物孕卵发育情况,
Mammalian pregnant eggs are extremely sensitive to radiation and chemicals. A small amount of radiation can cause the death of the pregnant egg, but the unfertilized pregnant egg has completely normal fetal development without deformity. If the egg dies before implantation, the mother often has no symptoms and is exactly the same as not pregnant. It is one of the causes of infertility that human beings’ pre-implantation death due to environmental factors has become an important research topic, and the WHO has also conducted serious studies. Pregnant eggs are not only very sensitive to radiation, but also very sensitive to chemical substances such as detergents widely used in the home. All these are the causes of death, which is a serious problem for women. First, the experimental study The author used mice to study the development of mammalian ova,