bentollhoda esmailee

Diabetes is a metabolic disease that is associated with heart injury. It has been shown that exercise training and resveratrol can improve the cardiac structure and function of diabetic subjects. The aim of the present study was to examine the effect of aerobic training along with resveratrol on gene expression of AMPK and MAFbx on cardiac tissue of diabetic experimental model.

In this experimental study, 40 males Wistar rats were randomly were divided into 5 groups: control (CN), diabetes (DM), diabetes-Resveratrol (RDM), diabetes-aerobic exercise (TDM), diabetes-aerobic exercise-Resveratrol (RTDM).Training groups have performed a running program on the treadmill for 8 weeks. Resveratrol (20 mg/kg) was injected subcutaneously 8 weeks for RDM and TRDM groups. 48 hours after the last training session, rats were anesthetized. Changes in the expression of AMPK and MAFbx myocardial genes were quantified using real-time PCR methods.

The results of the present study showed a reduction in AMPK expression (P < 0.001) and an increase in MAFbx (P < 0.001) in cardiomyocytes in DM groups compared to CN group.
AMPK expression was significantly increased in TRDM group compared to DM (p=0.009), RDM (p=0.011) and TDM (p=0.043) groups. MAFbx expression of cardiomyocytes in RDM (p=0.012), TDM (p<0.001) and TRDM (p<0.001) groups had significantly reduction compared to DM group. Also, MAFbx expression was significantly reduction in TRDM groups compared to RDM (p=0.041) groups.

 Long-term aerobic exercise, with and without resveratrol consumption it may cause to reduce the genomic indicators of atrophy and increase myocardial hypertrophy in diabetic rats.

IntroductionThe aim of the present study was to examine the effect of aerobic training along with resveratrol on cardiac expression of FOXO3a and MuRF1 in diabetic male rats.Materials and MethodsForty Wistar male rats were randomly classified into Control-Normal (CN), Diabetes Mellitus (DM), Resveratrol-Diabetes Mellitus (RDM), Training-Diabetes Mellitus (TDM) and Training-Resveratrol-Diabetes Mellitus (TRDM) groups. Training groups have performed a running program on a motor-driven treadmill for eight weeks. Resveratrol (20 mg/kg) was injected into the RDM and TRDM groups. Forty-eight hours after the last training session, rats were sacrificed; hearts were excised and immediately frozen in liquid nitrogen and stored at -80 °C for measuring the indexes. Statistical analysis was performed using a one-way analysis of variance, and significance was accepted at p ≤ 0.05.ResultsThe results of this study showed a reduction in the expression of FOXO3a (p=0.0001) and MuRF1 (p=0.0001) cardiomyocytes in  the TDM group compared to the DM group. The expression of FOXO3a (p=0.045) and MuRF1 (p=0.037) in the RDM group was significantly decreased in comparison to the DM group. Also, the expression of FOXO3a (p=0.026) and MuRF1 (p=0.007) cardiomyocytes in the TRDM groups also had a significant decrease compared to the DM group.ConclusionOur findings show that an aerobic training with and without resveratrol maybe inhibits atrophic biomarkers of cardiomyocytes in diabetic male rats.