Relation between erythrocyte reduced glutathione and glutamate concentrations in Korean Jindo dogs [Canis familiaris] with erythrocytes possessing hereditary high activity of Na-K-ATPase and a high concentration of potassium
1999
Yamato, O. (Hokkaido Univ., Sapporo (Japan)) | Lee, K.W. | Change, H.S. | Tajima, M. | Maede, Y.
The concentrations of sodium, potassium, reduced glutathione (GSH) and free amino acids and Na-K-ATPase activity in erythrocytes were examined in 35 purebred Jindo dogs in Korea. The incidence of Jindo dogs with a high potassium concentration and high activity of Na-K-ATPase in erythrocytes (HK phenotype) was 25.7%. The erythrocyte GSH concentration in HK Jindo dogs varied widely, from 2.45 to 12.38 mmol/l of RBCs, and was positively correlated with the erythrocyte glutamate concentration. These results indicate that HK Jindo dogs have normal to very high levels of erythrocyte GSH, which might result from the varying quantity of Na-dependent glutamate influx in the erythrocytes
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