The myocardial injury that occurs following a period of ischaemia and reperfusion is well recognised and the underlying mechanisms have been extensively investigated in healthy myocardial tissues; however, the influence of the risk factors associated with cardiovascular diseases on ischaemia/reperfusion injury remains unclear. In this article, the present knowledge on how clinical pathologies s...

BACKGROUND Several clinical studies have demonstrated that levels of adiponectin are significantly reduced in patients with type 2 diabetes and that adiponectin levels are inversely related to the risk of myocardial ischemia. The present study was designed to determine the mechanism by which adiponectin exerts its protective effects against myocardial ischemia/reperfusion. METHODS AND RESULTS...

Acute myocardial infarction (AMI) is the leading cause of death, morbidity, and health costs worldwide. In AMI, a sudden blockage blood flow causes ischemia cell death. Reperfusion after has paradoxical effects may exacerbate injury, process known as ischemic reperfusion injury. this work we evaluated lipidome isolated rat hearts, maintained in controlled perfusion (CT), undergoing global (ISC)...

OBJECTIVE The most important step in the treatment of ST elevation myocardial infarction is to sustain myocardial blood supply as soon as possible. The two main treatment methods used today to provide myocardial reperfusion are thrombolytic therapy and percutaneous coronary intervention. In our study, reperfusion arrhythmias were investigated as if they are indicators of coronary artery patency...

We measured changes in basal release of nitric oxide and its effect on polymorphonuclear leukocyte (PMN) adherence to endothelial cells (ECs) in a feline model of myocardial ischemia (90 minutes) and reperfusion. Basal release of nitric oxide from the left anterior descending coronary artery (LAD) after myocardial ischemia/reperfusion and from the control left circumflex coronary artery (LCX) w...

Clinical studies have reported that the incidence and severity of myocardial infarction is significantly greater in diabetics compared with nondiabetics after correction for all other risk factors. The majority of studies investigating the pathophysiology of myocardial ischemia-reperfusion injury have focused on otherwise healthy animals. At present, there is a paucity of experimental investiga...

Both the incidence of acute ST-segment–elevation myocardial infarction (STEMI) and the mortality from STEMI have decreased over the last 3 decades. However, despite the success of reperfusion therapy by primary percutaneous coronary intervention (PCI) or thrombolysis, STEMI is still of significant concern. Although door-to-balloon time for primary PCI has declined, mortality has not, possibly b...

BACKGROUND Interaction of CD11/CD18 located on neutrophil membranes with its endothelial counter-receptor, intercellular adhesion molecule-1, plays a major role in polymorphonuclear leukocyte (PMN)-mediated endothelial dysfunction and myocardial injury associated with ischemia and reperfusion. However, PMN-derived L-selectin, which is thought to play an early role in PMN rolling along the vascu...

Despite prompt reperfusion by primary percutaneous coronary intervention (PPCI), the mortality and morbidity of patients presenting with an acute ST-segment elevation myocardial infarction (STEMI) remain significant with 9% death and 10% heart failure at 1 year. In these patients, one important neglected therapeutic target is 'myocardial reperfusion injury', a term given to the cardiomyocyte de...

BACKGROUND The aim of this study was to evaluate the cardio-protective roles of glaucocalyxin A (GLA) in myocardial ischemia-reperfusion injury and to explore the underlying mechanism. MATERIAL AND METHODS Myocardial ischemia-reperfusion in wild-type C57BL/6J mice was induced by transient ligation of the left anterior descending artery. GLA or vehicle (solvent) was administrated intraperitoneal...