Voprosy meditsinskoi khimii (ISSN 0042-8809)

Intensity of glycolysis and energy metabolism in erythrocytes in experimental hypervitaminosis A

   
Kriukova L.V., Grozina A.A., Kamaeva S.I.
PubMed Id: 138257
Year: 1976 vol: 22  issue:5  pages: 640-642
Abstract: Administration of 60,000 i.e. of vitamin A into rats within three weeks caused an increase in amount of reticulocytes, in the rate of glucose utilization and in formation of lactic acid by erythrocytes. The activity of glycolytic enzymes was intensified. The activity of hexokinase was increased by 84.6%, activities of aldolase and phosphohexoisomerase were increased by 34%. But in the erythrocytes content of AMP, ADP and ATP was unaltered, probably due to activation of total and Na+, K+-dependent ATPase. The harmful effect of an excess of the vitamin A was manifested in an increased content of Na+ in erythrocytes and also in decreased stability of the cells to acid hemolytics.
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Reference: Kriukova L.V., Grozina A.A., Kamaeva S.I., Intensity of glycolysis and energy metabolism in erythrocytes in experimental hypervitaminosis A, Voprosy meditsinskoi khimii, 1976, vol: 22(5), 640-642.
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