Purpose: To study the effect of dexmedetomidine (Dex) on myocardial ischemia-reperfusion injury (MIRI), and associated mechanism action.Methods: Sixty Sprague-Dawley (SD) rats were assigned to sham, (I/R), Dex, MD groups (methyllycaconitine prior injection with Dex), 15 in each group. Pathological changes tissues determined all groups. Protein expression levels HMGB1, TLR4, NF-κB myeloid differ...

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-...

Introduction: It has been reported that traumas such as transverse abdominal incision before myocardial ischemia result in a significantly decreased infarct size. This phenomenon is named remote preconditioning of trauma. Since small skin burn is one of most common traumas, the effect of this injury on ischemia-induced arrhythmias and infarct size was investigated in a rat model of ischemia-...

Ischemia-reperfusion injury, a common complication during liver surgery where steatotic livers are more prone to the injury, may become more prevalent in the growing obese population. This study characterizes liver morphology toward understanding changes in subcellular function in steatotic livers exposed to ischemiareperfusion injury through quantitative description of fluorescein distribution...

OBJECTIVES Recent studies have revealed that nitric oxide (NO) in concert with lipid peroxidation (LP) may play an important role in pathophysiological mechanism(s) of cerebral ischemia. In addition, hyperglycemia exaggerates the pathological changes during cerebral ischemia. The purpose of this study was to investigate the effects of vitamin E (VE) on LP, NO production, and superoxide dismutas...

Börjesson, Anna, Andreas Norlin, Xiangdong Wang, RolandAndersson, and Hans G. Folkesson. TNF-a stimulates alveolar liquid clearance during intestinal ischemiareperfusion in rats. Am. J. Physiol. Lung Cell. Mol. Physiol. 278: L3–L12, 2000.—Intestinal ischemia-reperfusion commonly occurs in critically ill patients and may lead to the development of remote organ injury, frequently involving the lu...

SEE PAGE 47 A MP-activated protein kinase (AMPK) is a molecular energy sensor that is essential to the stress response in the heart (1). AMPK is activated during energy imbalance, when the ADPor AMP-toATP ratio increases. Because few proteins have adenine nucleotide binding domains, the activation of a protein kinase, which phosphorylates numerous downstream proteins, amplifies the energy stres...

Börjesson, Anna, Andreas Norlin, Xiangdong Wang, RolandAndersson, and Hans G. Folkesson. TNF-a stimulates alveolar liquid clearance during intestinal ischemiareperfusion in rats. Am. J. Physiol. Lung Cell. Mol. Physiol. 278: L3–L12, 2000.—Intestinal ischemia-reperfusion commonly occurs in critically ill patients and may lead to the development of remote organ injury, frequently involving the lu...