نتایج جستجو برای: ischemia reperfusion arrhythmia
تعداد نتایج: 112189 فیلتر نتایج به سال:
genesis of ischemia and reperfusion injury in the myocardium. Recent studies have suggested that a massive Ca influx may occur as a consequence of Na –Ca exchange via the sodium–calcium exchanger (NCX) during reperfusion which, in turn, may be caused by an accumulation of Na via the sodium–hydrogen exchanger (NHE) during ischemia. This results in an intracellular Ca overload, the detrimental ef...
postconditioning is a simple and safe strategy for cardioprotection and infarct size limitation. our previous study showed that oxytocin (ot) exerts postconditioning effect on ischemic/reperfused isolated rat heart. the aim of this study was to investigate the involvement of ot receptor, mitochondrial atp-sensitive potassium channel (mkatp), nitric oxide (no) and cyclooxygenase (cox) pathways i...
The Effect of <i>Momordica charantia</i> on Ovarian Ischemia-Reperfusion
Ovarian torsion is one of the gynecological emergencies that affect ovarian tissue integrity and fertility. In this study, we aim to investigate effects Momordica charantia (MC) on injury induced by ischemia-reperfusion. Twenty-four rats were assigned three groups: control group, ischemia-reperfusion (I/R) group IR + MC group. 600 mg/kg extract given via orogastric route. 3-hour ischemia reperf...
objective(s): to evaluate the protective effect of erdosteine, an antiapoptotic and antioxidant agent, on torsion–detorsion evoked histopathological changes in experimental ovarian ischemia-reperfusion (ir) injury. materials and methods: eighteen female wistar albino rats were used in control, ir, and ir+edosteine (ir-e) groups, (n=6 in each). the ir-e group received the erdosteine for seven da...
background renal ischemia reperfusion (ir) contributes to the development of acute renal failure (arf). oxygen free radicals are considered principal components involved in the pathophysiological tissue alterations observed during renal ir. objective in this study, we compared the effects of melatonin (mel) and erythropoietin (epo), which are known antioxidant and anti-inflammatory agents, in i...
anandamide is an endogenous ligand for cannabinoid receptors and has endothelial protective effect against ischemic preconditioning. the purpose of this study was to investigate the effects of cannabinoids on reperfusion injury due to testicular torsion-detorsion (t/d). a total of 36 adult male sprague-dawley rats were divided into 6 groups. testicular ischemia was achieved by twisting the righ...
objective(s): some histopathological alterations take place in the ischemic regions following brain ischemia. recent studies have demonstrated some neuroprotective roles of crocin in different models of experimental cerebral ischemia. here, we investigated the probable neuroprotective effects of crocin on the brain infarction and histopathological changes after transient model of focal cerebral...
Background: Renal ischemia reperfusion injury may occur in a variety of clinical situations, following a transient drop in total or regional blood flow to the kidney. This study was performed to investigate the protective effects of different antioxidants such as vitamin C, vitamin E, hydrocortisone and combination of these agents against experimental renal ischemia-reperfusion injury....
Introduction: Using brief episodes of ischemia and reperfusion (IR) prior to a more sustained IR insult – ischemic preconditioning (IPC) – can reduce IR injury of the heart, brain and many other tissues. The purpose of present study was to investigate the effect of 2min ischemic periods on subsequent rat renal IR injury. Methods: Male rat's renal IR injury was investigated in a right nephrectom...
Ischemic preconditioning suppresses ventricular tachyarrhythmias after myocardial revascularization.
BACKGROUND Ventricular fibrillation (VF) and tachycardia (VT) are the common and potential life-threatening complications after CABG. Ischemic preconditioning (IP) has been proved effective in reducing ischemia reperfusion arrhythmia in animals and humans. Whether IP is effective in suppressing postoperative VF/VT in patients with CABG has not been studied. METHODS AND RESULTS Eighty-six pati...
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