VOPROSY MEDITSINSKOI KHIMII (ISSN 0042-8809)

Protective effect of arginine in hyperoxia. Activity of cerebral glutaminase and glutamate decarboxylase

   
Krichevskaia A.A., Shugaley V.S., Tsvetnenko E.Z., Ananian A.A.
PubMed Id: 664482
Year: 1978  Volume: 24  Issue: 1  Pages: 42-46
Activity of glutaminase (both phosphate-dependent and phosphate-independent forms of the enzyme) as well as glutamate decarboxylase activity were studied in hyperoxia (6 ati) and under conditions of protection by means of arginine from the effect of hyperoxia. In hyperoxia activity of phosphate-dependent and phosphate-independent forms of glutaminase was decreased by 45% and 51%, respectively. At the same time, glutamate decarboxylase activity was decreased by 32%. Arginine showed a protective effect, delaying the time of oxygen convulsions onset by 2.5-fold. The low activities of glutaminases were maintained but the glutamate decarboxylase activity was increased and even exceeded the control level by 29%. A mechanism of the protective effect of arginine is discussed.
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Krichevskaia, A. A., Shugaley, V. S., Tsvetnenko, E. Z., Ananian, A. A. (1978). Protective effect of arginine in hyperoxia. Activity of cerebral glutaminase and glutamate decarboxylase. Voprosy Meditsinskoi Khimii, 24(1), 42-46.
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