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怀孕5周雌二醇多少是正常值
更新时间: 2020-11-05 00:00:00  

雌二醇是女性激素中的一项,一般怀孕5周雌二醇是40到100之间。

雌二醇是一种甾体雌激素。有α,β两种类型,α型生理作用强。温特斯坦纳等(Wintersteineretal.1935)曾从妊娠马尿中提取出来,此外也可从妊妇尿、人胎盘、猪卵巢等中获得。雄马的精巢或尿中也存在。因为它有很强的性激素作用,所以认为它或它的酯实际上是卵巢分泌的最重要的性激素。

关键词: 怀孕 多少 正常值

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