The Influence of Obese Insulin-Resistance on the Outcome of the Ischemia/Reperfusion Insult to the Heart

Title:The Influence of Obese Insulin-Resistance on the Outcome of the Ischemia/Reperfusion Insult to the Heart

Volume: 25 Issue: 13

Author(s): Krekwit Shinlapawittayatorn, Siriporn C. Chattipakorn and Nipon Chattipakorn*

Affiliation:

• Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200,Thailand

Keywords: Obese insulin-resistance, ischemia/reperfusion, heart, myocardial infarction, ishemic heart disease, obesity.

Abstract: Background: Obese insulin-resistance is one of the most important risk factor for cardiovascular diseases including ischemic heart disease (IHD). Growing evidences suggest that the susceptibility to myocardial ischemia-reperfusion (I/R) injury is increased in an obese insulin-resistance condition. Based on the currently available evidence from human and animal studies, this review mainly focuses on the influence of obese insulinresistance on the outcome of the I/R insult to the heart. Moreover, we have discussed whether improving insulin sensitivity by pharmacological interventions could ameliorate reperfusion induced myocardial injury.

Methods: The electronic database Pubmed was used as the source of selected peerreviewed research articles published in English. Both pre-clinical studies and clinical trials were obtained using obesity, insulin resistance, ischemia-reperfusion injury and myocardial infarction as keywords.

Results: Twenty-seven pre-clinical studies were obtained using obesity, insulin resistance, and cardiac ischemia-reperfusion injury as keywords, and five clinical trials were obtained using obesity, insulin resistance, and myocardial infarction as keywords. The underlying mechanisms responsible for the exacerbation of I/R injury in obese insulinresistance were the main subject of our review.

Conclusion: The findings of this review suggest that the susceptibility to I/R injury is increased in an obese insulin-resistance condition. However, the underlying mechanisms responsible for the exacerbation of I/R injury in obese insulin-resistance have not been fully elucidated, but increased basal oxidative stress, the impairment of anti-oxidant capacities, insulin signaling and pro-survival signaling and increased inflammation, likely play an important role.

Cite this article as:

Shinlapawittayatorn Krekwit , Chattipakorn C. Siriporn and Chattipakorn Nipon *, The Influence of Obese Insulin-Resistance on the Outcome of the Ischemia/Reperfusion Insult to the Heart, Current Medicinal Chemistry 2018; 25 (13) . https://dx.doi.org/10.2174/0929867324666170616105639