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Published in: Journal of Cardiovascular Translational Research 6/2018

01-12-2018 | Original Article

Aerobic Exercise Prevents Insulin Resistance Through the Regulation of miR-492/Resistin Axis in Aortic Endothelium

Authors: Ying Cai, Kang-Ling Xie, Fan Zheng, Sui-Xin Liu

Published in: Journal of Cardiovascular Translational Research | Issue 6/2018

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Abstract

Previously, we found that miR-492 delayed the progression of atherosclerosis (AS) by acting as an up-stream regulator of resistin. Therefore, we hypothesized that the anti-atherogenic effects of exercise are related to miR-492-mediated downregulation of resistin and repair of endothelial injury. In this study, we investigated the effects of the miR-492/resistin axis on improving endothelial injury in ApoE−/− mice (ApoE-deficient/knockout in C57BL/6 mice) through swimming exercises. Our results showed that the severity of AS and insulin resistance (IR) in these mice were significantly reduced by swimming exercises. In addition, miR-492 expression in the aortic endothelium of ApoE−/− mice was decreased, in addition to increased levels of resistin. Interestingly, swimming exercises increased miR-492 expression while decreasing that of resistin. Taken together, swimming exercises delayed the progression of AS, possibly by upregulating miR-492 and downregulating resistin in aortic endothelium. Therefore, exercises modulated glucose and lipid metabolism, alleviated endothelial IR, and repaired endothelial injury.
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Metadata
Title
Aerobic Exercise Prevents Insulin Resistance Through the Regulation of miR-492/Resistin Axis in Aortic Endothelium
Authors
Ying Cai
Kang-Ling Xie
Fan Zheng
Sui-Xin Liu
Publication date
01-12-2018
Publisher
Springer US
Published in
Journal of Cardiovascular Translational Research / Issue 6/2018
Print ISSN: 1937-5387
Electronic ISSN: 1937-5395
DOI
https://doi.org/10.1007/s12265-018-9828-7

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