Association of Serum and Follicular Fluid Leptin Concentrations with Granulosa Cell Phosphorylated Signal Transducer and Activator of Transcription 3 Expression in Fertile Patients with Polycystic Ovarian Syndrome

Abstract

Hyperleptinemia and high FF leptin are important pathologies of PCOS with infertility. Lower levels of p-STAT3 in GCs may be related to ovarian leptin resistance and fecundity in PCOS women. Relatively high serum and FF leptin and low p-STAT3 in GCs may account for decreased fertilization, implantation, and pregnancy rates of in vitro fertilization in PCOS women.