The Effect of Combination of Continuous Exercise and Resveratrol Supplementation on Foxo-1 and Atrogin-1 Gene Expression in Cardiomyocytes of Diabetic Male Wistar Rats

Expression of FoxO transcription factors whould increase during certain forms of atrophy. In a dephosphorylated state, FoxOs participate in ubiquitin-mediated proteasomal degradation through the transcriptional activation of E3-ubiquitin ligases such as MAFbx/atrogin-1. Therefore, the study aimed to determine the effect of combination of continuous exercise and resveratrol supplementation on foxo-1 and Atrogin-1 gene expression in the left ventricular tissue of male Wistar rats.

In this study, 25 male Wistar rats with 180-250 g weight were randomly classified into 5 groups, including healthy control (n=5), diabetic control (n=5), diabetic resveratrol (n=5), diabetic-continuous exercise (n=5), and resveratrol+ continuous exercise+ diabetes (n=5). After inducing diabetes by intraperitoneal injection of streptozotocin, animals in expremental groups were carried out an 8-week exercise program on a treadmill with 60-75% Vo2max. One-way ANOVA and Tukey test with statistical level (P<0.05) was used to compare the differences between groups.

The results showed that gene expression of Atrodin-1 were significantly markedly in the ARDM group compared to the DM group (P= 0.02) but the gene expression of foxo-1 only was significantly changed (P= 0.001) in ARDM group to compared with the other groups (P>0.05).

It seems that the Foxo1 gene expression fluctuations along with the significant decrease in the expression of the atherogen-1 gene can be improving the diabetic heart as a non-pharmacological method.