Comparative Biochemistry and Physiology Part B: Comparative Biochemistry 1992-12-01

Effects of phenol compounds, glutathione analogues and a diuretic drug on glutathione S-transferase, glutathione reductase and glutathione peroxidase from canine erythrocytes.

M Kurata, M Suzuki, K Takeda

文献索引：Comp. Biochem. Physiol.,. B. 103(4) , 863-7, (1992)

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摘要

1. Phenol compounds (ellagic acid, quercetin and purpurogallin), glutathione analogues (S-hexylglutathione and S-octylglutathione) and a diuretic drug (ethacrynic acid) were compared for their inhibitory effects on glutathione S-transferase (GST), glutathione reductase (GR) and glutathione peroxidase (GSH-Px) in the canine erythrocytes. 2. All these compounds inhibited GST activity; quercetin was found to be the most potent inhibitor. 3. Ellagic acid, purpurogallin, quercetin and ethacrynic acid inhibited GR activity; S-hexylglutathione and S-octylglutathione had no effect on GR and GSH-Px activities. 4. Quercetin and purpurogallin inhibited GST non-competitively toward glutathione, whereas ellagic acid showed a competitive inhibition. Ellagic acid and purpurogallin inhibited GR non-competitively toward oxidized glutathione.

相关化合物

  • S-辛基谷胱甘肽

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