Introduction Ischemic postconditioning is a method that shows evidence of efficacy in minimizing reperfusion injury; however, its effectiveness in preventing injuries in distant organs is still unknown, especially in those who have undergone mesenteric ischemia and reperfusion. Objective To evaluate the effect of ischemic postconditioning in preventing reperfusion injury in the liver of rats ...

BACKGROUND AND PURPOSE Ischemic stroke studies emphasize a difference between reperfusion and recanalization, but predictors of reperfusion have not been elucidated. The aim of this study was to evaluate the relationship between reperfusion and recanalization and identify predictors of reperfusion. MATERIALS AND METHODS From the Dutch Acute Stroke Study, 178 patients were selected with an MCA...

BACKGROUND It is widely accepted that edema occurs early in the ischemic zone and persists in stable form for at least 1 week after myocardial ischemia/reperfusion. However, there are no longitudinal studies covering from very early (minutes) to late (1 week) reperfusion stages confirming this phenomenon. OBJECTIVES This study sought to perform a comprehensive longitudinal imaging and histolo...

The heart is an organ that requires an important energy input to ensure its contractile function. Myocardial ischemia happens when there is a deficiency of blood flow that is responsible for the passage from an aerobic to anaerobic metabolism. Myocardial ischemia results from an imbalance between inputs and the needs of nutrient and oxygen to the myocardium. The restoration of myocardial perfus...

Objective(s): The alteration of glucose transporters is closely related with the pathogenesis of brain edema. We compared neuronal damage/death in the hippocampus between adult and young gerbils following transient cerebral ischemia/reperfusion and changes of glucose transporter-1(GLUT-1)-immunoreactive microvessels in their ischemic hippocampal CA1 region. Materials and Methods: Transient cere...

Ischemic postconditioning refers to several transient reperfusion and ischemia cycles after an ischemic event and before a long duration of reperfusion. The procedure produces neuroprotective effects. The mechanisms underlying these neuroprotective effects are poorly understood. In this study, we found that most neurons in the CA1 region died after 10 minutes of ischemia and is followed by 72 h...

OBJECTIVE Despite cerebral ischemia being a frequent clinical pathologic state, the tolerance of neural tissue to oxygen absence and to reperfusion is controversial. This study aims to evaluate the effects of focal cerebral ischemia/reperfusion, by analyzing the mitochondrial respiration. METHOD Sixty-four adult rats underwent focal cerebral ischemia by middle cerebral artery occlusion, durin...

The protective effect of erythropoietin (EPO) on intestinal ischemic/reperfusion injury has been less studied. Therefore, the aim of the present study was to evaluate whether EPO has protective effects on the intestinal ischemic/reperfusion injury in rabbits. Thirty healthy male New Zealand white rabbits underwent clamping of the superior mesenteric artery for 60 minutes. Then, the animals were...

OBJECTIVES This study was designed to see if ischemic postconditioning could attenuate ischemic reperfusion injury of transplanted lungs recovered from non-heart-beating donors. MATERIALS AND METHODS Forty Sprague-Dawley rats were randomized into 2 groups: the control group and the ischemic postconditioning group, with 10 donor rats paired with 10 recipient rats in each group. Twenty rats und...

Objective: To evaluate low-molecular-weight (LMW) DNA as possible prognostic biomarker in acute ischemic and hemorrhagic stroke. Methods:  LMW DNA samples were isolated from plasma and cerebrospinal fluid by phenol deproteinization, analyzed by gradient polyacrylamide electrophoresis and quantified by spectrophotometry. Results: Two common types of the stroke, ischemic and hemorrhagic, differ...