The effect of melatonin on the correlation between the intensity of the accumulation of the oxidative-modified protein content, activity of the antioxidant enzymes and the state of proteoly-sis in the basal nuclei (the nucleus caudatus, globus pallidus, nucleus accumbens, amigdaloid complex) of the brain under the conditions of acute hypoxia has been studied. Under the conditions of acute hypoxia in the basal nuclei an intensification of the protein peroxidation processes is observed, the activity of the antioxidant enzymes decreases, the intensity of the proteolysis increases. The injection of melatonin in a dose of 1 mg per kg of the body mass before the modeling of acute hypoxia results in the decreasing of protein peroxidation, increasing of the antioxidant enzyme activity and normalization of the parameters of proteolysis.
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