Keywords: تزریق داخل سیتوپلاسمیک; APF; aging-promoting factor; CCs; cumulus cells; CGs; cortical granules; COCs; cumulus-oocyte complexes; 6-DMAP; 6-dimethylaminopurine; HATs; histone acetyltransferases; hCG; human chorionic gonadotropin; HDACs; histone deacetylases; IVF; in vitro ferti