objective(s):global cerebral ischemia-reperfusion injury causes loss of pyramidal cells in ca1 region of hippocampus. in this study, we investigated the possible neuroprotective effects of the ethanol extract of cyperus rotundus (eecr) on a model of global transient ischemia in rat, by evaluating the pathophysiology of the hippocampal tissue and spatial memory. materials and methods: treatment ...

Renal ischemia-reperfusion directly affects glomerular and tubular epithelium. Oxygen free radicals have a significant part in the pathophysiology of renal ischemia-reperfusion injury. The present study aimed to identify the effects of 3-week zinc, melatonin, and zinc + melato- nin supplementation on malondialdehyde (MDA) levels in tissue and plasma and glutathione levels (GSH) in erythrocytes ...

background: the role of renin angiotensin system (ras) in ischemic/reperfusion (i/r) injuries is not fully elucidated. furthermore, it is not clear whether inhibition of ras by angiotensin-converting enzyme (ace) inhibitors has beneficial effects in terms of protecting the brain from i/r injuries. in this study enalapril is used as an ace inhibitor to evaluate the role of ras in i/r injuries in...

global cerebral ischemia (gci) and reperfusion induced apoptosis that lead to cell injury and death. the bax and bcl-2 are pro-apoptotic and anti-apoptotic genes, respectively. these genes belong to the b-cell lymphoma-2 (bcl-2) family.in this study; we assessed the effect of pentoxifylline drug on bax/bcl2 gene dosage expression changes following   ischemic reperfusion injury in kidney. in thi...

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/AIMS Mesenteric ischemia/reperfusion injury induces a systemic response and releases harmful substances that may affect distant organs such as the lung, liver and kidney. We designed this study to determine if curcumin has protective effects against mesenteric ischemia/reperfusion injury and mesenteric ischemia/reperfusion-induced intestinal and distant organ injury. METHODS Forty ...

Ischemia is defined as cell death caused by insufficient perfusion of the tissue due to reduction in arterial or venous blood flow, depletion of cellular energy storages, and accumulation of toxic metabolites. The positive effects of controlled reperfusion are known and are used clinically. But the positive effects of controlled reperfusion on ovarian tissue have not been seen in the literature...

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...

Objective: The aim of this study was to investigate the potentially deleterious effect in vivo high-fructose feeding rats on ex hemodynamic recovery and infarct size isolated rat hearts subjected low-flow ischemia reperfusion.
 Methods: After Sprague-Dawley male with a (n=9), high-glucose (n=9) or standard diet for four weeks, were extirpated perfused Krebs-Henseleit solution 15 min; there...

To investigate the expression of autophagy markers brain cells and effect propofol on during myocardial ischemia-reperfusion in type 2 diabetic rats. 36 healthy male Sprague Dawley rats were randomly divided into 6 groups, each group, fed with high-sugar high-fat diet for 8 w intraperitoneal injection streptozotocin to prepare rat model diabetes. The groups are: sham operation ischemia reperfus...