Abstract
Modern environmental conditions dramatically increased the level of radical forming processes in the body. Heat exposure stimulates the generation of reactive oxygen species inducing peroxidation of lipids as a result of the development of hypoxia. In experimental conditions the possibility to correct free radical lipid oxidation of rats’ organism membranes was studied with the oral introduction of the phytoadaptogens that contain the complex of natural antioxidants. The animals were divided into 5 groups and each of them had 30 rats: intact animals (1) which were held in standard conditions of vivarium; the control group (2) in which rats were exposed to heat during forty-five minutes daily; the experimental groups (3, 4, 5) in which before the effects of heat animals had a daily oral intake of the extracts of Eleutherococcus, Rhodiola, liquorice in a dose of 1 ml/kg. It was found out that in the liver tissue of experimental animals a daily heat exposure during forty-five minutes contributes to the increase of lipid hydroperoxides level (by 34-41%), of diene conjugate (by 45-50%), and of malonic dialdehyde (by 62-74%) against the decrease of antioxidant system activity in the liver of intact animals. The introduction of phytoadaptogens to rats in the conditions of heat exposure contributes to the reliable decrease in the liver of lipid hydroperoxides by 22-28%, of diene conjugates by 22-32%, and of malonic dialdehyde by 30-37% in comparison with the rats of the control group. While analyzing the effect of the phytoadaptogens on the activity of the components of antioxidant system it was shown that the level of ceruloplasmin in the liver of animals was reliably higher by 68-82%, of vitamin E by 42-65% in comparison with the same parameters of the rats of the control group. So, the application of phytoadaptogens in the conditions of long heat exposure of the organism of animals under experiment leads to the stabilization of the processes of peroxidation against the increase of antioxidant system activity.
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