[THE INFLUENCE OF NANODISPERSE CERIUM DIOXIDE ON ONTOGENETIC CHANGES OF ANTIOXIDANT SYSTEM IN THE MUCOSA OF THE...

It was established that with age the content of lipid peroxidation products increased in the mucosa of the stomach: Diene conjugates by 30%, products which react to thiobarbituric acid by 285% and Schif bases by 181%. Nanodisperse cerium dioxide (NCD) reduced the content of lipid peroxidation in the gastric mucosa in old rats: Diene conjugates by 43 %, products which react to thiobarbituric acid by 51% and Schif bases by 44% relative to the control group of rats given age. Similarly, it was established that the content of Diene conjugates increased by 40%, products which react to thiobarbituric acid by 114% and Schif bases by 132% in the mucosa of the colon of old rats. NDC significant reduced the content of products which react to thiobarbituric acid by 69% and Schyf basics by 132%. In the stomach superoxide dismutase (by 43%) and catalase activity (by 24%) decreases with age, while in the colon superoxide dismutase activity increases (by 43%). In the colon NCD significant decreased superoxide dismutase (by 34%) and catalase activity (by 21%) relative to controls. Thus, the NDC restores lipid peroxidation in the gastric mucosa and colon, in which develops oxidative stress with age.