نتایج جستجو برای: reperfusion

تعداد نتایج: 36564  

ابوالحسنی, فرید, اسدی آملی, فهیمه, سبحانی, علیقلی, غلامی, محمد رضا, پاسبخش, پریچهر, کریم فر, محمد حسن,

Background and Objective: Ischemia plays a major role in development of pathological changes in various neuropathies. Reperfusion amplifies physiological and pathological abnormalities in ischemic nerves. In this research, we studied ischemic-reperfusion (IR) injury of sciatic nerve up to 14 days of reperfusion. Materials & Methods: IR was produced by ligation and release of nooses around suppl...

Bahadori MH Ghasemnezhad R, Mohammad Ghasemi F

Background: The aim of this study was to investigate the short term protective effect of oxytocin on testicular ischemia reperfusion injury immediately after detorsion in a rat model. Materials and Methods: Twenty adult rats were randomly divided into four groups: Control, Ischemia- Reperfusion (IR), Oxytocin and IR+ Oxytocin. Testicular ischemia was achieved by torsion of the left testis 720° ...

Introduction: Cerebral ischemia-reperfusion causes complex pathological mechanisms that lead to tissue damage, such as neuronal apoptosis. Usnic acid is a secondary metabolite of lichen and has various biological properties including antioxidant and anti-inflammatory activities. This study aimed to investigate the neuroprotective effects of usnic acid on apoptotic cell death and apoptotic-relat...

Journal: :journal of reproduction and infertility 0

background: testicular torsion and detorsion causes reperfusion injury which damages the testicular tissue and affects the quality of sperm. deterioration in the quality of sperm worldwide is the recent scenario and one of its reasons is testicular ischemic/ reperfusion (ir) injury. therefore the present study aims at producing new drugs for the treatment of testicular ir injury. methods: 42 an...

Journal: : 2021

Redox balance maintaining is a prerequisite for normal cardiomyocytes metabolism. Reperfusion injury of the heart characterized by an explosive increase in ROS generation, cell membranes damage, dysfunction proteins, development muscle contracture etc. It was shown that hydrogen sulfide (H2S) and precursor its synthesis amino acid L-cysteine provided cardioprotective effect against ischemiarepe...

Asefeh Fekri, Fatemeh Safari, Gholamreza Bayat, Mahdi Foruzande moghadam, Seyyed Hosein Moshtaghioun, Shahnaz Shekarforoush, Sohrab Hajizadeh,

Introduction: Reactive oxygen species (ROS) have been suggested to play an important role in the myocardial damage induced by ischemia – reperfusion. One element believed to be activated by ROS and to contribute to the reduction of ROS production, is the uncoupling protein-2 (UCP2). The objective of this investigation was to explore the effect of myocardial ischemia reperfusion on cardiac UC...

Journal: :The Annals of Thoracic Surgery 2021

BackgroundMolecular hydrogen (H2) has protective effects against ischemia-reperfusion injury in various organs. Because they are easier to transport and safer use than inhaled H2, H2-rich solutions suitable for organ preservation. In this study, we examined the of an solution lung preservation a canine left transplantation (LTx) model.MethodsTen beagles underwent orthotopic LTx after 23 hours c...

Journal: :physiology and pharmacology 0
khalil pourkhalili department of physiology, school of medical sciences, tarbiat modares university sohrab hajizadeh department of physiology, school of medical sciences, tarbiat modares university ali khoshbaten chemical injuries research center, baqiyatallah university of medical sciences taki tiraihi department of anatomy, school of medical sciences, tarbiat modares university

abstract introduction: resent studies have been shown beneficial effects of hyperoxia pretreatment against ischemia-reperfusion injury in different organs. the aim of the present study was to investigate early and late effects of normobaric hyperoxia (≥95% o2) pretreatment on ischemia-reperfusion injuries in isolated rat hearts. methods: following 60 and 180 minutes of hyperoxia, rat hearts wer...

Journal: :Journal of Biosciences and Medicines 2021

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...

Journal: :physiology and pharmacology 0
fatemeh safari department of physiology, tarbiat modares university, tehran, iran sohrab hajiadeh department of physiology, tarbiat modares university, tehran, iran seyed hosein moshtaghion yazd cardiovascular research center, shahid sadoughi university of medical sciences, yazd, iran mehdi forouzandeh moghadam department of biotechnology, tarbiat modares university, tehran, iran shahnaz shekarforoush islamic azad university, arsanjan branch, fars, iran gholamreza bayat department of physiology, tarbiat modares university, tehran, iran

introduction: nicotinamide adenine dinucleotide phosphate (nadph) oxidase-2 (nox2) is one of the predominant sources of ros production during myocardial ischemia-reperfusion and can be induced by angiotensin ii. the evidence suggests that pharmacological blockers of renin-angiotensin system can exert direct tissue effects independent of their ability to regulate blood pressure. the mechanism(s)...

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