New Insights into the Role of Oxidative Stress Mechanisms in the Pathophysiology and Treatment of Multiple Sclerosis

Table 2

The types of antioxidants. The types of antioxidants depend on molecular structure. The table lists the most important barrier antioxidant enzymes and other compounds and ions which are not enzymes.

Enzymes oxidants [16, 29, 41–44]	Nonenzymatic antioxidants [13]
	Low molecular weight antioxidants	Antioxidant elements
CAT; GPx; GR; SOD; Paraoxonase; Arylesterase; GSTs; NQO1; Peroxiredoxin-3; Thioredoxin-2, 6; FeOx; δ-ALA-D	Uric acid; Vitamin C; Vitamin D; Vitamin E; Glutathione; Coenzyme Q; B-Carotene; AU	Ions: Cu, Fe, Zn, Mn

CAT: catalase, GPx: glutathione peroxidase, GR: glutathione reductase, SOD: superoxide dismutase, GSTs: glutathione-S-transferases, NQO1: NAD(P)H:quinone oxidoreductase 1, FeOx: ferroxidase, δ-ALA-D: δ aminolevulinate dehydratase, and AU: uric acid.