The Effect of an Aerobic Exercise on MTNR1B Gene Expression, Insulin and Glucose Levels in Pancreas of Induced Diabetic Rat with Streptozotocin-Nicotinamide
DOI:
https://doi.org/10.22100/jkh.v11i3.1416Keywords:
MTNR1B expression, Aerobic training, Rat with type II diabetes, Glucose level and insulin levelAbstract
Introduction: Type 2 diabetes is a chronic disease with warning increasing rate in the world. Although type 2 diabetes is a multifactorial disease, it has been recently found that the incidence of type 2 diabetes is associated with MTNR1B gene and the growth of its expression increases the risk of type 2 diabetes. The objective of this study was to evaluate the effect of 12-week aerobic exercise on MTNR1B gene expression, glucose and fasting insulin in male Wistar rats with type 2 diabetes.
Methods: This fundamental study with experimental approach. included 30 male Wistar rats with weight of 220±20 gram. Sampls were kept under standard conditions: temperature of 22 ± 3° centigrade, 45% humidity and consecutive 12-hour periods of light and darkness. The rats were divided into three groups. Infusion of diabetes was conducted by Nicotinamide and streptozotocin solution.Training program was held on 5 days a week for 12 weeks with a gradual increasing of speed (18 to 26 meters per minute) and time (10 to 55 minutes) by running on a treadmill. Glucose level, insulin level and gene expression were measured by enzyme glucose oxidase colorimetric method, enzyme-linked immunosorbent assay, and Real-time polymerase chain reaction. All statistical analyses were performed by software SPSS, version16.
Results: Training programme led to a significant reduction in fasting glucose levels in aerobic diabetic group compared to the control diabetic group (P<0.05). Serum insulin levels in the diabetic aerobic group was more than diabetic control group, but this difference was not statistically significant (P≥0.05). On the other hand, the implementation of aerobic exercise MTNR1B in pancreas gene expression decreased 39 percent in the diabetic control group in comparison with diabetic control group (P<0.05).
Conclusion: The results showed that 12-week aerobic exercise led to a significant reduction in blood glucose and in gene expression MTNR1B in pancreatic tissue compared to the diabetic control group.
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