Antioxidant defense system enhancement

The antioxidant defense system comprises an array of enzymatic (e.g., superoxide dismutase, catalase, glutathione peroxidase) and non-enzymatic components (e.g., glutathione, vitamins C and E, flavonoids) that protect cells from oxidative damage by neutralizing reactive oxygen species and maintaining redox homeostasis. Enhancement of this system is a therapeutic and preventive strategy for diseases where oxidative stress is implicated, but "antioxidant defense system enhancement" is not a particular target molecule, receptor, or gene—it refers collectively to interventions aimed at improving the overall antioxidant capability of biological tissues. Key caveat: "Antioxidant defense system enhancement" cannot be mapped to a single, canonical molecular target as required by structural bioinformatics or pharmacological ontology. Its improvement involves modulation of numerous genes, proteins, and small molecules within complex biological networks.

Other names

Antioxidant defense systemCellular antioxidant systemOxidative defense system

Scavenging of ROS directly (non-enzymatic antioxidants); Upregulation of endogenous antioxidant enzymes (via Nrf2 pathway activation); Replenishment of cellular glutathione (GSH) pools; Inhibition of ROS production