Οξειδωτικά μέσω ενζυματικών αντιδράσεων που περιλαμβάνουν τη γλουταθιονική αναγωγάση. Diagram illustrating the antioxidant systems in a red blood cell. It shows the interactions of reactive oxygen species like superoxide (O?? ) and hydrogen peroxide (H? O? ) with the glutathione system, catalase, and superoxide dismutase (SOD). Chemical pathways detail the reduction of oxidants through enzymatic reactions involving glutathione reductase and glutathione peroxidase. Various molecular structures are shown, highlighting their roles in neutralizing oxidative stress and maintaining cellular homeostasis. Text boxes provide brief descriptions of the processes involved.