GMW G NAC C Glutathione, NAC and Vitamin C Dr Kats Weightloss Repurposing Melatonin in dual mode for Wilson disease therapy as a Copper Chelator and an antioxidant agent bioRxiv Melatonin and nitric oxide modulate glutathione content and glutathione reductase activity in sunflower seedling cotyledons accompanying salt stress ScienceDirect Mechanism of Action of Melatonin as a Potential Adjuvant Therapy in Inflammatory Bowel Disease and Colorectal Cancer