miR-761-hepcidin/Gpx4 pathway contribute to unexplained liver dysfunction in polycystic ovary syndrome by regulating liver iron overload and ferroptosis

The study investigated the mechanisms behind unexplained liver dysfunction in polycystic ovary syndrome (PCOS) patients, focusing on the miR-761-hepcidin/GPX4 pathway. Researchers found that some PCOS patients and animal models exhibited liver damage independent of nonalcoholic fatty liver disease, with increased iron deposition. The study highlighted the downregulation of hepcidin and GPX4, key proteins in ferroptosis, suggesting the significance of iron metabolism in this liver damage. The miR-761-hepcidin/GPX4 axis was shown to affect ferroptosis and iron deposition, influencing liver function in PCOS models. These findings offered a new explanation for liver damage in PCOS and identified a potential therapeutic target.