Variability of glutathione during the menstrual cycledue to estrogen effects on hepatocytes? ScienceDirect Frontiers Endometriosis Is a Cause of Infertility. Does Reactive Oxygen Damage to Gametes and Embryos Play a Key Role in the Pathogenesis of Infertility Caused by Endometriosis? Frontiers Metformin in polycystic ovary syndrome: unraveling multi stage therapeutic mechanisms from puberty to long term health outcomes Hormonal imbalances affect up to 80% of womenand they're one of the most common, yet treatable, causes of infertility. When hormones are out of sync, they can disrupt ovulation, menstrual cycles, and