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[Early manifestations of the effect of Salmonella endotoxin on the antioxidizing enzyme systems of the liver and intestines in the rat].

A study was made of the effect of salmonellosis endotoxin (SE) on the activity of glutathione transferase (GT), glutathione peroxidase (GP-GTB and GP-H2O2), glutathione reductase (GR) and superoxide dismutase (SOD) in cytosols of the rat jejunal mucosa and liver. The activity of all the test enzymes of both the small intestine and liver was marked by drastic changes at the early stages of SE action. Thus, the activity of SOD and GP-H2O2 in the liver decreased after 30 min or 1 h of endotoxin action, respectively. In the jejunal mucosa, the activity of GP-H2O2 and SOD dropped after 4 h of SE action. GT in the jejunum remained unchanged, whereas in the liver, it was activated. The activity of GR and GP-GTB in the liver and jejunum was dissimilar. The causes and consequences of the abnormalities of the antioxidant enzymatic system and the role they play in the pathogenesis of salmonellosis intoxication are discussed.