BOP1 and polycystic ovary syndrome: The ovary morphology showed that the number of antral follicles and corpus luteum was lower and the number of cystic follicles was higher in the ovaries of the PCOS mice than in the control group, whereas the abnormalities of follicular development in the PCOS mice treated with LV-BOP1 were attenuated compared with those in the PCOS mice treated with the vector lentivirus (Fig. 2H–K).