[Lipid peroxidation in the immobilization stress of different duration]

It was demonstrated in experiments on rats, that increase of immobilization stress duration causes more prolonged activation of lipid peroxidation, however significant differences of both malonic dialdehyde and acylhydroperoxides content were not established in early period after stress in rats, which were exposed to the immobilization of different duration. It was shown, that increase of superoxiddismutase activity is observed in early period of 3-hour and 6-hour stress, but it was decreased in 12-hour immobilization. Catalase activity was decreased in 6-hour and 12-hour stress. These results confirm the literature data about dependence between the expression of stress manifestations and the strength and duration of stress factor action.