Aim: Our aim was to investigate expression level of VEGF in tuba uterine ovarian ischemia-reperfusion (I/R) by immunohistochemical techniques. Material and Methods: 30 Sprague Dawley female rats were categorized into three groups. Sham group: The abdomen opened closed without any treatment. Ischemia (I) 1-hour ischemia allowed create ischemic injury. Ischemia-reperfusion then 3-hour reperfusion...

BACKGROUND AND AIMS Renal ischemia followed by reperfusion causes remote liver injury. This research was planned to investigate whether 3-aminobenzamide (3-AB), has any preventive effect against distant liver injury triggered by renal IR. MATERIALS AND METHODS Twenty four rats were randomly divided into three different groups Each group has 8 rats. The groups were as follows: (1) Sham operate...

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...

BACKGROUND Autophagy is a self-digestion system responsible for maintaining cellular homeostasis and interacts with reactive oxygen species produced during ischemia/reperfusion (I/R). Melatonin (MLT) is a potent and endogenous anti-oxidant that has beneficial effects in liver I/R injury. In this study, we examined the cytoprotective mechanisms of MLT in liver I/R, focusing on autophagic flux an...

tetracyclines are broad spectrum antibiotics which are inexpensive and widely available and have an appropriate safety profile. in addition to antibiotical effects, tetracyclines can inhibit matrix metaloproteinase and collagenase, and subsequently reduce inflammation, angiogenesis, and neovascularization. they have partial neuro-protective, anti-apoptotic and antioxidant properties. given thes...

BACKGROUND Myocardial ischemia and reperfusion lead to impairment of electrolyte balance and, eventually, lethal arrhythmias. The aim of this study was to investigate the effects of pharmacological inhibition of angiotensin-II (Ang-II) production on heart tissue with ischemia-reperfusion damage, arrhythmia, and oxidative stress. MATERIAL AND METHODS Rats were divided into 4 groups: only ischemi...

Oxidative stress occurs in remote liver injury, but the origin of the oxidant generation has yet to be thoroughly delineated. Some reports suggest that the source of the distant oxidative stress originates from the site of initial insult [i.e., xanthine oxidase (XO)]; however, it could also be derived from sources such as phagocytic and/or vascular NAD(P)H oxidase (Nox) enzymes. With a murine m...

OBJECTIVES To differentiate the impact of the beta-blocking and the anti-oxidant activity of carvedilol in maintaining myocardium viability. METHODS Isolated rabbit hearts, subjected to aerobic perfusion, or low-flow ischaemia followed by reperfusion, were treated with two doses of carvedilol, one dose (2.0 microM) with marked negative inotropic effect due to beta-blockage and the other (0.1 ...

BACKGROUND Ischemia-reperfusion (I/R) studies have implicated oxidant stress, the mitochondrial permeability transition pore (mPTP), and poly(ADP-ribose) polymerase (PARP) as contributing factors in myocardial cell death. However, the interdependence of these factors in the intact, blood-perfused heart is not known. We therefore wanted to determine whether oxidant stress, mPTP opening, and PARP...