The effect of melatonin and N-acetylcysteine on the state of the orientation research activity in rats under conditions of the experimental diabetes mellitus

Abstract

An important task of modern medicine is the search and development of drugs that exhibit cerebroprotective properties in patients with type 1 diabetes mellitus.Aim. To study the effects of melatonin and N-acetylcysteine on the orientation research activity and anxiety of rats under conditions of the experimental diabetes mellitus.Materials and methods. Rats with induced diabetes mellitus received N-acetylcysteine (1.5 g/kg), melatonin (10 mg/kg), or their combination for 5 weeks. The “open field” test and “dark-light chamber” were used to study the orientation research activity and anxiety of rats.Results. The introduction of N-acetylcysteine, melatonin, and their combination contributed to an increase in the orientation research activity and a decrease of anxiety in rats with the experimental diabetes mellitus. In animals received pharmacotherapy the horizontal and vertical activity increased, the number acts of defecation and urination decreased in the “open field” test. The time of staying in the dark compartment of the chamber reduced, while the time of staying in the light compartment increased, animals moved and peeped out more often in the “dark-light chamber” test.Conclusions. N-acetylcysteine and melatonin in monotherapy and in combination improve glycemic control and the body weight of rats with the experimental type 1 diabetes mellitus, have a positive effect on the emotional (reduce the anxiety) and vegetative status, preventing disorders of the locomotor and orientation research activity.