title: Relationship between the pentose phosphate shunt and methemoglobin reductase activity in human erythrocytes: Effect of aging on methemoglobin reductase activity.
abstract: The increase in methemoglobin reductase activity in human erythrocytes upon incubation with inosine, phosphate, pyruvate occurs only in the presence of methylene blue. No difference in activity of the methemoglobin reductases was observed between enzyme extracts of fresh cells and aged cells.
mesh_terms: D042966:Cytochrome-B(5) Reductase / Q000097:blood*; D004905:Erythrocyte Aging; D004912:Erythrocytes / Q000201:enzymology*; D006801:Humans; D007700:Kinetics; D009243:NAD; D009247:NADH, NADPH Oxidoreductases / Q000097:blood*; D009249:NADP; D010428:Pentosephosphates / Q000097:blood*
chemical_list: D010428:Pentosephosphates; D009243:NAD; D009249:NADP; D009247:NADH, NADPH Oxidoreductases; D042966:Cytochrome-B(5) Reductase