摘 要: 【目的】 探讨IVF-ET周期中单原核(1PN)胚胎形态学及继续体外培养潜能,指导其临床利用价值?【方法】 对受精后16 ~ 18 h观察到的486个1PN胚胎进行体外培养,观察其原核大小?极体及卵裂情况;通过囊胚序贯培养法将其中374个1PN胚胎培养至囊胚期,观察囊胚形成情况?【结果】 374个1PN胚胎共形成囊胚179个(47.86%),其中优质囊胚41个(22.91%)?行囊胚培养的374个1PN胚胎原核直径为(27.64 ± 3.30)μm,大于未达囊胚培养标准的81个胚胎的(26 ...
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