The investigation of Krebs cycle state in kidney homogenates of August rats subjected to oral intoxication with oil solution of yellow phosphorus in a dose of 0.3 mg/kg, has shown that under conditions of balanced nutrition the activity of NAD-dependent isocitrate dehydrogenase, succinate dehydrogenase and accumulation of the substrate fund of the cycle decreased 3.5-fold as compared to the control. The addition of polyunsaturated fatty acids to the ration produced a positive effect on Krebs cycle state: dehydrogenase activity was not significantly changed, accumulation of Krebs cycle substrate was two-fold lower. However, this ration did not completely abolish the toxic action of yellow phosphorus on Krebs cycle.
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