LHCGR and polycystic ovary syndrome: In addition, the luteinising hormone chorionic gonadotropin receptor (Lhcgr) gene was enriched in four signalling pathways, including neuroactive ligand-receptor interaction, the calcium signalling pathway, the cAMP signalling pathway, and ovarian steroidogenesis, suggesting that Lhcgr is an important target gene of Leo in the treatment of PCOS mice.