Document Type : Research Paper
PhD Student of Health in Disaster and Emergency Situations, Kerman University of Medical Sciences, Kerman, Iran
MSc in Exercise Physiology, University of Tehran, Tehran, Iran
Associate Professor, Department of Exercise Physiology, University of Tehran, Tehran, Iran
. MSc in injuries and corrective exercises, University of Tehran, Tehran, Iran
Mir-210 is pro-angiogenic micro-RNA in endothelial cells that improves angiogenesis process by suppressing (EphrinA3) and increasing the migration of some gene and protein targets (VEGF). In this study, 12 male rats (age: 8 weeks, mean weight: 180±20 g) were selected and randomly divided into control (n=6) and exercise (n=6) groups. High intensity interval training was performed for 4 weeks, 5 days a week including 3 high intervals (4 minutes at 90-100% of VO2max) and 3 low intervals (2 minutes at 50-60% VO2max). Gene expression was calculated by Real time-PCR technique and 2-∆∆CT. Independent t test was used to determine the significance of variables between the groups.The results showed that high intensity interval training significantly changed the increase of gene expression of Mir-210 and VEGF (P=0.005) (P=0.003). Also, the decrease in gene expression of EphrinA3 receptor in the exercise group was significant compared with the control group (P=0.000). Generally, perhaps due to hypoxiawhich happened along with high intensity interval training, increased gene expression of Mir-210 and VEGF improved the pro-angiogenic function of endothelial cells and this adaptation increased angiogenesis in rats.