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胚泡植入需滋养层与子宫内膜粘附。一般细胞粘附与细胞表面电荷电负性有关,是细胞表面的糖蛋白层部分-糖盏决定的。以前一直认为大多数哺乳动物的胚泡植入不伴有宫内膜糖盏的肉眼改变。最近,有人电镜发现啮齿动物宫内膜在植入前发生糖盏厚度及带阴电荷物质减少。光镜下猪宫内膜亦有类似改变。导致本文再检验人胚泡粘附需要宫内膜糖盏变化的假说。在无扩颈和无麻醉情况下,用Randall刮匙自14名正常妇女(4~5个周期间)取宫内膜活检68
Blastocyst implantation requires trophoblast adhesion to the endometrium. General cell adhesion and cell surface charge negatively related to the cell surface glycoprotein layer - sugar caulis determined. It has been previously thought that most mammalian blastocysts are not associated with macroscopic changes in endometrial saccades. Recently, it was found by electron microscopy of rodent endometrium before the occurrence of sugar calyx thickness and negative charge material reduction. Pig endometrium under the light of a similar change. The hypothesis that endometrial saccharin changes in this paper is needed to test the adhesion of human blastocysts. Endometrial biopsy 68 was taken from 14 normal women (4 to 5 weeks) with a Randall curette in the absence of any enlargement or anesthesia