The Effect of Eight- Week High-Intensity Interval Training on the Expression of Cardiac Angiostatin and Focal adhesion Kinase Proteins at Left Ventricle in Diabetic Rats

Diabetes can increase cardiovascular disease by altering the equilibrium between angiogenic stimulants and inhibitors of angiogenesis. In this study, we investigated the effect of High-Intensity Interval Training (HIIT) on angiostatin and focal adhesion kinase (FAK-1) in left ventricle cardiomyocytes in diabetic rats.

In this experimental study, 24 male Wistar rats were randomly divided into three equal groups (n=8): Control-Normal (C), Diabetes (D), and Diabetes-training (D+T). Diabetes was induced by the injection of streptozotocin in male rats. The Training group has performed a HIIT program on a motor-driven treadmill for eight weeks. At the end of eight weeks-- heart tissue samples were collected. Data were analyzed using ANOVA and Tukey post hoc at P<0.05.

The results showed that induction of diabetes increased the expression of angiostatin (P=0.006), and serum glucose (P=0.001) and decreased FAK-1 (P=0.001). HIIT significantly reduced the level of angiostatin (P=0.006) and glucose (P=0.001) in diabetic rats. There was also a significant increase in FAK-1 in the D+T group (P=0.001).

HIIT decreased the protein expression of angiostatin and glucose and increased FAK-1 in cardiomyocytes. HIIT seems to reduce the vascular complications of diabetes in rats by altering these parameters that affect angiogenesis and blood glucose.