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  • Title: [Impaired glutathione metabolism in hemolytic anemia].
    Author: Kondo T.
    Journal: Rinsho Byori; 1990 Apr; 38(4):355-9. PubMed ID: 2195189.
    Abstract:
    During the delivery of oxygen by erythrocytes, highly reactive oxygen species such as superoxide anion arise. The presence of reactive species damages the cell constituents. Glutathione (GSH) functions to repair cells when they are attacked by oxidative stress. GSH is synthesized in erythrocytes and glutathione disulfide (GSSG) is transported outside the cells to maintain a high GSH/GSSG ratio. The redox cycle of GSH by glutathione reductase and glutathione peroxidase is closely related to G6PD. Hereditary enzyme deficiency related to GSH metabolism, with hemolytic anemia has been reported. G6PD deficiency causes hemolytic anemia due to insufficiency of the redox cycle of GSH. Deficiency of GSH synthesizing enzymes or glutathione reductase also causes hemolysis. Pyrimidine 5'-nucleotidase deficiency causes hemolytic anemia even when there is a high concentration of GSH. Accumulation of nucleotides in red cells causes inhibition of G6PD activity.
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