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Current Diabetes Reviews

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ISSN (Print): 1573-3998
ISSN (Online): 1875-6417

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Research Article

Swimming Impacts on Pancreatic Inflammatory Cytokines, miR-146a and NF-кB Expression Levels in Type-2 Diabetic Rats

Author(s): Mohammad Reza Alipour, Nasibeh Yousefzade, Fariba Mirzaei Bavil, Roya Naderi and Rafighe Ghiasi*

Volume 16, Issue 8, 2020

Page: [889 - 894] Pages: 6

DOI: 10.2174/1573399815666191115154421

Price: $65

Abstract

Background: Obesity-induced chronic inflammation is a key component in the pathogenesis of insulin resistance and type-2 diabetes.

Objective: This study aimed to evaluate the effect of swimming exercise on pancreatic expression levels of inflammatory cytokines, miR-146a and NF-кB in type-2 diabetic male rats.

Methods: Twenty- eight male Wistar rats were divided into four groups: control (Con), exercise, diabetes and diabetic exercise (n = 7). Diabetes induction performed by the combination of high-fat diet (HFD, 4 weeks) and streptozotocin (35 mg/kg. ip). After induction of diabetes, the rats swam in the exercise groups for 12 weeks. Then, blood and tissue samples were collected.

Results: Our results indicated a significant increase in expression levels of miR-146, NF-κB and inflammatory cytokines (IL-6, TNF-α, and IL-1β) while a significant decrease in pancreatic expression levels of TRAF6 and IRAK1 in diabetic group as compared to the control group. In contrast, swimming exercise resulted in a significant decrease in expression levels of miR-146a, NF-кB and inflammatory cytokines and a significant increase in expression levels of TRAF6 and IRAK1 in the exercise-diabetic group compared to the diabetic group.

Conclusion: Our results indicated a significant increase in expression levels of miR-146, NF-κB and inflammatory cytokines (IL-6, TNF-α, and IL-1β) while a significant decrease in pancreatic expression levels of TRAF6 and IRAK1 in diabetic group as compared to the control group. In contrast, swimming exercise resulted in a significant decrease in expression levels of miR-146a, NF-кB and inflammatory cytokines and a significant increase in expression levels of TRAF6 and IRAK1 in the exercise-diabetic group compared to the diabetic group.

Keywords: Diabetes, inflammatory cytokines, NF-кB, miR-146a, IRAK1, TRAF6.

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