A Review of Nanoparticles in Treatment of Myocardiac Ischemic-Reperfusion Injury
Abstract
Myocardial ischemia-reperfusion injury is a kind of pathologic physiology, clinical refers to, when myocardial or coronary artery in patients with partial completeness of acute obstruction, and leads to ischemia after a period of time, restore blood supply, at this time although the myocardium and coronary ischemia returned to normal perfusion, but they are so tissue level by damage, seriously affecting the prognosis of patients with myocardial infarction. Studies have proved that the injury caused by reperfusion is even more serious than that caused by ischemia itself. The mechanisms leading to myocardial ischemia-reperfusion injury mainly include :(1) calcium overload due to recovery of oxygen supply; (2) cardiac ultrastructural changes; (3) lipid peroxidation; (4) leukocyte infiltration; (5) Increase of free radical reactive oxygen species. Different approaches have been used clinically to reduce ischemia-reperfusion injury, including medication, pretreatment and post-treatment. In recent years, the targeting ability of nano-agents has been used to make drugs highly concentrated at the injury site, thus improving the therapeutic effect of drugs for ischemic-reperfusion injury. This emerging medication method has gradually entered the field of vision of experimental researchers and doctors. This review summarizes the successful development of nanoparticles for the treatment of myocardial ischemia-reperfusion injury.
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