Percentage of undergoing germinal vesical breakdown and PB1 extrusion in cumulus-oocyte complex groups was higher than that in denuded oocyte groups(P<0.05).
卵丘-卵母细胞复合物各组的卵母细胞生殖泡破裂发生率和第一极体排除率明显高于裸卵各组（P<0.05）。
Cumulus cells play an important role in the intracellular GSH synthesis in oocyte.
卵丘细胞对卵母细胞内的谷胱甘肽合成起重要作用。
Cumulus cells play an important role in the intracellular GSH synthesis in oocyte.
卵丘细胞对卵母细胞内的谷胱甘肽合成起重要作用。
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