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...

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...

SUDDEN CARDIAC ARREST IS THE most common lethal consequence of cardiovascular disease. Even if return of spontaneous circulation (ROSC) from cardiac arrest is achieved, approximately 60% of patients will not survive to hospital discharge. The high mortality is attributed to the postcardiac arrest syndrome, which involves global ischemiareperfusion injury, myocardial stunning, and anoxic brain i...

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...

Purpose: To evaluate the protective effect, effective time window, and mechanism of protection sevoflurane post-conditioning late on heart muscle ischemiareperfusion (I/R) lesion in isolated rat heart.Methods: Langendorff perfusion model was established Sprague-Dawley (SD) rats. After 15 min stabilization, rats were assigned to 10 groups, based treatments given: control group (TTC), I/R group, ...