CHANGES OF THE PROOXIDANT-ANTIOXIDANT SYSTEM ACTIVITY IN THE EARLY PERIOD OF POLYTRAUMA DEVELOPMENT AND PENTOXIFYLLINE CORRECTION
Introduction. Trauma is one of the causes of oxidative stress. Membrane stabilizing, tread, anti-calcium, antianginal and anti-aggregant properties of xanthines, in particular pentoxifylline, along with other inherent pharmacodynamic effects, can prevent the formation of irreversible pathological changes in various organs and tissues.
The aim of the study – to determine the peculiarities of the changes of the prooxidant-antioxidant system in the early period of polytrauma development and the effectiveness of using pentoxifylline.
Research Methods. Experiments were conducted on white, non-breeding, sexually mature male rats. The content of malondialdehyde and lipid hydroperoxides was determined in the liver tissue and blood plasma. The level of catalase and ceruloplasmin activity in the liver and blood plasma were determined. For the purpose of correction, pentoxifylline was used. The drug was injected intraperitoneally once a day in the form of 2 % aqueous solution at a dose of 25 mg/kg for 7 days.
Results and Discussion. The use of pentoxifylline in experimental animals with a model of polytrauma led to a decrease in the concentration of lipid hydroperoxides and malonic dialdehyde in the blood plasma already from the 1st day of the study. The introduction of pentoxifylline caused a significant decrease in the content of lipid hydroperoxides and malondialdehyde in the liver of animals during the entire observation period. A statistically significant decrease in plasma catalase activity was noted in the first and third days of the experiment. Its increase in liver tissue was observed from the 3rd day of the study. No statistically significant effect on the level of ceruloplasmin in the liver and plasma after administration of pentoxifylline was detected.
Conclusion. Under the conditions of experimental polytrauma and introduction of pentoxifylline in the form of 2 % aqueous solution at a dose of 25 mg/kg within 7 days, the decrease in the activity of the prooxidant system and a significant increase in the activity of catalase in liver parenchyma were observed.
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