Figure 2.

Diagrammatic explanation of the melatonin regulated anti-oxidative system and scavenging of reactive oxygen species. This diagram is a conclusion of various studies mentioned in Table 3. Abbreviations – ASA, ascorbate; APX, ascorbate peroxidase; CAT, catalase; DHA, dehydroascorbate; DHAR, dehydroascorbate reductase; GPX, glutathione peroxidase; GSH, glutathione; GSSG, oxidative glutathione; GR, glutathione reductase; H₂O₂, hydrogen peroxide; MDHA, monodehydroascorbate; MDHAR, monodehydroascorbate reductase; NADPH, reduced nicotinamide adenine dinucleotide phosphate; NADP, nicotinamide adenine dinucleotide phosphate; O₂^.-, superoxide anion; POD, peroxidase; SOD, superoxide dismutase.