VOPROSY MEDITSINSKOI KHIMII (ISSN 0042-8809)

Changes in the ATPase activity of the brain and erythrocytes in hypoxia

   
Govorova L.V., Aleksandrova E.A., Teplov S.I.
PubMed Id: 123382
Year: 1975  Volume: 21  Issue: 1  Pages: 23-26
An effect of hypoxic hypoxia on the total, Mg2+-dependent and Na-K-dependent ATPase activities was studied in rat brain and erythrocytes. In brain tissue under effect of 15 min hypoxia a distinct decrease in all the ATPase activities was observed; the activity of Na-K-dependent ATPase decreased especially distinctly (by 32% of the initial level). Within 90 min of hypoxia the enzymatic activity was partially restored but did not reach the initial level. In erythrocytes 15 min hypoxia was also accompanied by a significant decrease in Na-K-dependent ATPase activity (30.5% of the initial level). But within 90 min the enzymatic activity was distinctly increased (up to 196.4%). Mg2+-dependent ATP-ase was more resistant to oxygen deficiency, Variations in the enzymatic activity were less distinct, although they showed the same pattern as those of the Na-K-dependent ATPase.
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Govorova, L. V., Aleksandrova, E. A., Teplov, S. I. (1975). Changes in the ATPase activity of the brain and erythrocytes in hypoxia. Voprosy meditsinskoi khimii, 21(1), 23-26.
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