BAX and polycystic ovary syndrome: In addition, the qRT-PCR, Western blot and EdU assay results showed that the ratio of Bcl-2/Bax and EdU-positive cells were significantly lower in the blank + miR-155 inhibitor group than in the blank group (Fig. 7J–L); in contrast, the ratio of Bcl-2/Bax and EdU-positive cells were significantly higher in the PCOS + miR-155 mimic group than in the PCOS group (Fig. 7J–L).