Antioxidant Dynamics: Free Radicals, Redox Homeostasis, and Cellular Defense Mechanisms

In aerobic organisms, the mitochondrial electron transport system (ETS) couples nutrient oxidation to oxidative phosphorylation, yielding cellular ATP. However, during this electrochemical flux, approximately 1% to 2% of total molecular oxygen undergoes premature univalent reduction due to electron leakage at…


