Single-cell expression analysis of BMP15 and GDF9 in mature oocytes and BMPR2 in cumulus cells of women with polycystic ovary syndrome undergoing controlled ovarian hyperstimulation.

Purpose: To detect expression of bone morphogenetic protein 15 (BMP15) and growth differentiation factor 9 (GDF9) in oocytes, and their receptor type 2 receptor for BMPs (BMPR2) in cumulus cells in women with polycystic ovary syndrome (PCOS) undergoing in vitro fertilization (IVF), and determine if BMPR2, BMP15, and GDF9 expression correlate with hyperandrogenism in FF of PCOS patients.

Methods: Prospective case-control study. Eighteen MII-oocytes and their respective cumulus cells were obtained from 18 patients with PCOS, and 48 MII-oocytes and cumulus cells (CCs) from 35 controls, both subjected to controlled ovarian hyperstimulation (COH), and follicular fluid (FF) was collected from small (10-14 mm) and large (>18 mm) follicles.

[Concentration of steroid hormones in the follicular fluid of mature and immature ovarian follicles of patients with polycystic ovary syndrome submitted to in vitro fertilization].

Purpose: to evaluate the concentration of steroid hormones in follicular fluid (FF) of small (10-14 mm) and large (> 18 mm) follicles of women with polycystic ovary syndrome (PCOS) submitted to controlled ovarian hyperstimulation (COH) and in vitro fertilization (IVF) cycles.

Methods: a case-control study was conducted on 13 infertile women with PCOS (17 cycles) and 31 infertile women due to male factor - Control Group (31 cycles). FF was aspirated individually and divided into four groups: G1 (FF of small follicles of the Control Group), G2 (FF of small follicles of the PCOS group), G3 (FF of large follicles of the Control Group) and G4 (FF of large follicles of the PCOS group).