نتایج جستجو برای: ischemia reperfusion oxidant

تعداد نتایج: 108814  

Journal: :nephro-urology monthly 0
mohammed elshiekh department of physiology, faculty of medicine, tehran university of medical sciences, international campus, tehran, ir iran mehri kadkhodaee department of physiology, faculty of medicine, tehran university of medical sciences, tehran, ir iran; department of physiology, school of medicine, tehran university of medical sciences, p. o. box: 1417613151, tehran, ir iran. tel: +98-2188259862, fax: +98-2166419484 behjat seifi department of physiology, faculty of medicine, tehran university of medical sciences, tehran, ir iran mina ranjbaran department of physiology, faculty of medicine, tehran university of medical sciences, tehran, ir iran parisa ahghari department of physiology, faculty of medicine, hamedan university of medical sciences, hamedan, ir iran

conclusions pretreatment with epo and application of ipc significantly ameliorated the renal injury induced by bilateral renal ir. however, both treatments attenuated renal dysfunction and oxidative stress in kidney tissues. there were no significant differences between pretreatment with epo or application of ipc. materials and methods twenty four male wistar rats were allocated into four exper...

Journal: :Acta cirurgica brasileira 2015
Devrim Tuglu Ercan Yuvanc Erdal Yilmaz Isin Yazici Gencay Pinar Atasoy Ucler Kisa Ertan Batislam

PURPOSE To investigate the protective effect of dexmedetomidine (Dex) on testicular damage induced by ischemia-reperfusion injury in rats. METHODS Sham group underwent left scrotal exploration only (group 1). The ischemia-reperfusion only group underwent left testicular torsion and detorsion (group 2). The ischemia-reperfusion plus Dex group underwent left testicular torsion, received 50 µg/k...

2015
Buin Adams Rudo F Mapanga M Faadiel Essop

BACKGROUND Acute hyperglycemia co-presenting with myocardial infarction (in diabetic and non-diabetic individuals) is often associated with a poor prognosis. Although acute hyperglycemia induces oxidative stress that can lead to dysregulation of the ubiquitin-proteasome system (UPS), it is unclear whether increased/decreased UPS is detrimental with ischemia-reperfusion under such conditions. As...

a:4:{s:9:"Objective";s:335:"There is some evidence that shows Matricaria chamomile (MC) plays an important role in ischemia-reperfusion. In the present study, a rat model of torsion/detorsion to investigate the effect of hydroalcoholic extract of MC on testis tissue damage was used. In adult rat testis, the oxidative stress (OS) induced by ischemia-reperfusion.";s:19:"MaterialsAndMethods";s:913...

Journal: :acta medica iranica 0
majid taati department of pathobiology, school of veterinary medicine, lorestan university, khorramabad, iran. mehrnoush moghadasi department of physiology, school of medicine, lorestan university of medical sciences, khoramabad, iran. omid dezfoulian department of pathobiology, school of veterinary medicine, lorestan university, khorramabad, iran. peyman asadian department of pathobiology, school of veterinary medicine, lorestan university, khorramabad, iran. and research associate at ontario veterinary college, university of guelph, canada.

ischemia-reperfusion injury is a possible cause of testicular damage and infertility after testicular torsion and detorsion. the purpose of this study was to evaluate the effect of ghrelin on testicular ischemia-reperfusion damage. a total of 30 adult male rats were selected for the study and divided randomly into 3 groups, each containing 10 rats. animals in the testicular torsion and ghrelin ...

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)...

Journal: :Cardiovascular research 1997
W Yasmin K D Strynadka R Schulz

OBJECTIVE The acute release of radicals upon reperfusion following myocardial ischemia may include both nitric oxide (NO) and superoxide anion (O2-.). The generation of peroxynitrite (ONOO-) from these radicals may contribute to ischemia-reperfusion injury. Our objective was to measure the generation of ONOO- during reperfusion of isolated hearts subjected to ischemia and to determine the effec...

Journal: :American journal of physiology. Gastrointestinal and liver physiology 2007
Tadashi Hasegawa Yoshiya Ito Jayanthika Wijeweera Jie Liu Ernst Malle Anwar Farhood Robert S McCuskey Hartmut Jaeschke

Steatosis is a major risk factor for complications after liver surgery. Since neutrophil cytotoxicity is critical for ischemia-reperfusion injury in normal livers, the aim of the present study was to evaluate whether an exaggerated inflammatory response could cause the increased injury in steatotic livers. In C57Bl/6 mice, 60 min of warm hepatic ischemia triggered a gradual increase in hepatic ...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1999
X L Ma F Gao G L Liu B L Lopez T A Christopher J M Fukuto D A Wink M Feelisch

Recent experimental evidence suggests that reactive nitrogen oxide species can contribute significantly to postischemic myocardial injury. The aim of the present study was to evaluate the role of two reactive nitrogen oxide species, nitroxyl (NO(-)) and nitric oxide (NO(.)), in myocardial ischemia and reperfusion injury. Rabbits were subjected to 45 min of regional myocardial ischemia followed ...

Journal: :Journal of leukocyte biology 1992
H Jaeschke A P Bautista Z Spolarics J J Spitzer

Kupffer cells and polymorphonuclear leukocytes (PMNs) contribute to the severe reperfusion injury of the liver after ischemia at different time points. The objective of this study was to identify the cellular source(s) of reactive oxygen formation during the PMN-induced injury phase. Kupffer cells and PMNs were isolated from the liver after 45 min of ischemia and 5 h or 24 h of reperfusion usin...

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