BACKGROUND Levels of MBCK can be increased in patients with skeletal muscle injury or renal failure in the absence of myocardial injury, causing diagnostic confusion. This study was designed to determine whether measurement of cardiac troponin I (cTnI), a myocardial regulatory protein with comparable sensitivity to MBCK, has sufficient specificity to clarify the etiology of MBCK elevations in p...

Background. Levels of MBCK can be increased in patients with skeletal muscle injury or renal failure in the absence of myocardial injury, causing diagnostic confusion. This study was designed to determine whether measurement of cardiac troponin I (cTnI), a myocardial regulatory protein with comparable sensitivity to MBCK, has sufficient specificity to clarify the etiology ofMBCK elevations in p...

BACKGROUND Although remote ischemic conditioning (RIC) by transient limb ischemia in percutaneous coronary intervention (PCI) and coronary artery bypass grafting (CABG) has shown favorable effects on myocardial (ischemia-reperfusion) injury, recent trials provide inconsistent results. The aim of the present study was to assess the effect of RIC in PCI or CABG. METHODS AND RESULTS  Medline/Emb...

Background CMR is the imaging modality of choice to quantify myocardial injury in studies of cardioprotection. Remote ischemic conditioning (RIC), using transient limb ischemia and reperfusion, is a novel therapeutic intervention, which can protect the heart against acute ischemiareperfusion injury (IRI). Whether RIC can reduce myocardial infarct (MI) size, and improve myocardial salvage in ST-...

background: calcium overload and free radical mediated damage in the mitochondria is the most important pathological changes associated with myocardial ischemic-reperfusion injury. the verapamil post-treatment has been previously reported to prevent reperfusion-induced myocardial injury but functional recovery may be delayed due to the drug's inherent direct myocardial depression effect. in the...

Background Cocaine abuse is associated with an increased risk for coronary artery disease and myocardial infarction. However, there is a paucity of data on myocardial injury in asymptomatic cocaine abusers. T1 mapping cardiovascular magnetic resonance (CMR) has the ability to quantify diffuse alterations in myocardial tissue composition by assessing the extracellular volume fraction (ECV). This...

Peroxisome proliferator-activated receptor α (PPARα) is highly expressed in heart, but its metabolic regulation effect in rats with myocardial ischemia/reperfusion injury is still a controversy. In this study, the cardioprotective effect of PPARα activation in rats with myocardial ischemia/reperfusion injury and its relevant mechanism was investigated. Adult male Wistar rats were pretreated wit...

BACKGROUND To identify patients at risk for postoperative myocardial injury and death, measuring cardiac troponin routinely after noncardiac surgery has been suggested. Such monitoring was implemented in our hospital. The aim of this study was to determine the predictive value of postoperative myocardial injury, as measured by troponin elevation, on 30-day mortality after noncardiac surgery. ...

BACKGROUND In vitro evidence suggests that the p38 mitogen-activated protein kinase (p38 MAPK) plays a crucial role in PMN activation and inflammatory cytokine production. However, the effect of p38 MAPK on myocardial reperfusion injury, a pathologic condition involving a typical inflammatory response, has not been fully examined. In the present study, we investigated the effect of SB 239063, a...

Background—Inflammation plays a key role in the pathophysiology of myocardial ischemia/reperfusion (I/R) injury; however, the mechanism by which myocardial I/R induces inflammation remains unclear. Recent evidence indicates that a sterile inflammatory response triggered by tissue damage is mediated through a multiple-protein complex called the inflammasome. Therefore, we hypothesized that the i...