The effect of free radical processes on the oxidation-phosphorylation activity in the liver of CBA-mice has been studied, using a model of toxic form viral infection. The EPR-spectroscopic and electrochemical methods applied in the study of animals infected with pathogenic form of the influenza virus made it possible to reveal a decrease in the activity of the respiratory chain in mitochondria. This seems likely to be due to accumulation of endogenic nitric oxide in the liver tissue.
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