Skip Navigation LinksHome > December 2013 - Volume 62 - Issue 6 > Balance of Nitric Oxide and Reactive Oxygen Species in Myoca...
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Journal of Cardiovascular Pharmacology:
doi: 10.1097/FJC.0b013e3182a50c45
Review Article

Balance of Nitric Oxide and Reactive Oxygen Species in Myocardial Reperfusion Injury and Protection

Folino, Anna PhD*; Losano, Gianni MD; Rastaldo, Raffaella PhD*

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Abstract: Depending on their concentrations, both nitric oxide (NO) and reactive oxygen species (ROS) take part either in myocardial ischemia reperfusion injury or in protection by ischemic and pharmacological preconditioning (Ipre) and postconditioning (Ipost). At the beginning of reperfusion, a transient release of NO is promptly scavenged by ROS to form the highly toxic peroxynitrite, which is responsible for a further increase of ROS through endothelial nitric oxide synthase uncoupling. The protective role of NO has suggested the use of NO donors to mimic Ipre and Ipost. However, NO donors have not always given the expected protection, possibly because they are responsible for the production of different amounts of ROS that depend on the amount of released NO. This review is focused on the role of the balance of NO and ROS in myocardial injury and its prevention by Ipre and Ipost and after the use of NO donors given with or without antioxidant compounds to mimic Ipre and Ipost.

© 2013 by Lippincott Williams & Wilkins.

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