Results: As the decreasing score of the oocyte, the maturation rate, fertilization rate, cleavage rate and the quality of embryos decreased, meanwhile the apoptosis rate of granulose cells increased.

• 结果：随着卵母细胞评分的降低，卵子的成熟率、受精率、卵裂率及优质胚胎率均下降，而颗粒细胞的凋亡率升高。