GNRH1 and polycystic ovary syndrome: An increase in the number of high-quality embryos is related to the cumulative pregnancy rate.[55] Recent proteomic studies identified elevated mitochondrial protein expression in 429 oocytes from GnRH-ant pretreated PCOS patients, providing mechanistic insights into improved 430 embryo competence.[56] However, the present study failed to demonstrate that GnRH-ant pretreatment has an effect on pregnancy outcomes between the 2 groups.