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Endogenous antioxidants.
| Endogenous antioxidants | Examples |
|---|---|
| Enzymes | Superoxide dismutase |
| Catalase | |
| Peroxiredoxins | |
| GSH enzyme-linked system | Glutathione peroxidase |
| Glutathione S-transferase | |
| Glutathione reductase | |
| Nonenzymes | Glutathione |
| Cysteine | |
| Thioredoxin | |
| Metal-binding proteins | Ferritin |
| Metallothionein | |
| Ceruloplasmin |
