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The Effect of Regular Moderate Exercise on miRNA-192 Expression Changes in Kidney of Streptozotocin-Induced Diabetic Male Rats.

PURPOSE
The purpose of this study was to investigate the regular moderate exercise effect on the miR-192 expression changes in kidney of Streptozotocin- induced diabetic rats.


METHODS
Forty adult male Wistar rats were divided into four groups of 10, including Sedentary Control group, Healthy 60 days Exercise group, diabetic group and Diabetic 60 days Exercise. Diabetes was induced by injection of 60 mg/kg Streptozotocin and after 48 hour blood glucose levels higher than 250 mg/dl were included to diabetic rats. After 48 hour of induction diabetes, exercise protocol was begun. Animals performed 5 days of consecutive treadmill exercise (60 min/day) with 22 m/min speeds for 60 days. Kidney of the rats has removed and MicroRNA was extracted from kidney using miRCURY(TM) RNA isolation kit.


RESULTS
Exercise upregulated miR-192 expression level significantly in the kidney of diabetic rats in comparison to healthy group. There is not any significant change in miR-192 expression in diabetic 60 days exercise compared to control group.


CONCLUSION
These results may indicate that exercise can help to prevent the progression of diabetic nephropathy.