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  • Title: [Activity of the indicator enzymes of liver subcellular structures with the prolonged administration of Valexon].
    Author: Kuz'minskaia UA, Bersan LV, Veremenko LM.
    Journal: Vopr Pitan; 1978; (5):48-51. PubMed ID: 716333.
    Abstract:
    The free and unprecipitated activity of succindehydrogenase and glucose-6-phosphatase, as well as of that of glucose-6-phosphate-dehydrogenase in the rats liver was determined. The animals received for a long time (1--3 and 6 months) a new organophosphorus pesticide valexon (0.0-diethyl thiophosphoryl-oxyiminophenylnitryle acetate) by mouth in doses of 31 mg/kg and 3.1 mg/kg which corresponds to 1/20 and 1/200 LD50. The earliest changes (after 1 month) include: falling activity of hexokinase and a rise in that of glucose-6-phosphatase and succindehydrogenase, pointing to the damage of microsomes and mitochondria supervenes in 1 and 6 months time after introduction, respectively. The role of an early injury of microsomes and of disturbed first stages of glucose metabolism in the mechanism of the valexon action is suggested.
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