LIPE and polycystic ovary syndrome: Additionally, the lncRNA LIPE-AS1 is highly expressed in PCOS follicular fluid EVs and modulates steroid metabolism, granulosa cell proliferation, and apoptosis through the LIPE-AS1/miR-4306/LHCGR axis, contributing to poor oocyte quality and impaired embryo development (Yu et al., 2024).