Investigation of the effects of swimming exercises in rats given acrylamide

Abstract

Background: Acrylamide is a toxic substance used in industrial and laboratory processes. Acrylamide exposure has a toxic effect on many systems. Protective mechanisms should be developed against the effects caused by acrylamide. Objective: In our study, we investigated whether exercise has a protective effect against the changes that acrylamide will cause in pancreas. Methods: 32 adult Sprague-Dawley male rats were used. Control group was given only saline. Exercise group was applied swimming exercise for 1 hour daily for 4 weeks. Acrylamide group was given 50 mg/kg acrylamide by gavage for 4 weeks. Acrylamide + exercise group was applied 50 mg/kg acrylamide for 4 weeks and swimming exercise for 1 hour daily. After the experiment, fasting blood glucose and oral glucose tolerance test measurements were performed. Then, blood and pancreas samples were taken. Results: Acrylamide exposure caused an increase in fasting blood glucose and oral glucose tolerance, a decrease in insulin levels and oxidative stress in acrylamide group. In exercise group, these values were similar to control group and no significant change was observed in acrylamide + exercise group. While there was an increase in the number of alpha cells in acrylamide group compared to the other groups, here was a decrease in the number of beta cells compared to control group. Conclusion: We can say that acrylamide causes changes in the islets of Langerhans by affecting alpha and beta cell numbers. The protective effect of exercise on beta and alpha cell mass was not statistically significant in the acrylamide + exercise group. When the results were examined, the decrease in oxidative stress and the higher number of beta and alpha cells in the acrylamide + exercise group compared to the acrylamide group suggested that 4 weeks of swimming exercise may have an effect on acrylamide exposure. © 2022 Elsevier Masson SAS