精液对子宫内膜蜕膜化及胚胎发育的影响

目的探讨精液成分对子宫内膜蜕膜化及胚胎发育的影响。方法(1)子宫内膜细胞蜕膜化后分别加入人精子及精浆共培养,观察蜕膜化的间质细胞生长情况并测定培养液中泌乳素(PRL)含量。(2)内膜培养8 d后,加入小鼠2-细胞期胚胎继续培养,观察胚胎的发育情况及内膜细胞生长情况。(3)建立假孕鼠模型,观察精液在胚胎移植中的作用。结果(1)精浆组子宫内膜间质细胞蜕膜化程度明显优于精子组和对照组,PRL分泌量有显著性差异(P<0.05),而精子组和对照组无明显差异。(2)精浆能促进8细胞以后的胚胎在子宫内膜细胞上的卵裂、囊胚形成、孵化、粘附和扩展性生长(P<0.05)。(3)胚胎移植过程中精子对植入率没有影响。结论(1)精浆能促进子宫内膜间质细胞蜕膜化,促进PRL的分泌。(2)精浆能促进胚胎在子宫内膜细胞共培养体系中的发育。(3)精浆与精液对囊胚着床作用可能相同,而精子在胚胎植入过程中没有作用。

The effects of semen on human endometrial decidualization and embryo development

Objective: To investigate the roles of semen in the regulation of endometrial stroma decidualization and embryo development Method:(1) Spermatozoa and seminal plasma(SP) isolated from normal men were added respectively to the cultured human stroma cells undergoing decidualization,and the morphological changes of the stroma cells and prolactin (PRL) production were observed.(2) 2-cell mouse embryos were co-cultured with human endometrial cells(with/without spermatozoa or SP) for 8 days to observe the embryo ...