نتایج جستجو برای: reperfusion oxidant

تعداد نتایج: 50938  

2013
Askın Tas Hekimoglu Gulten Toprak Hasan Akkoc Osman Evliyaoglu Selver Ozekinci Ilker Kelle

Renal ischemia-reperfusion (IR) causes remote liver damage. Oxytocin has anti-inflammatory and antioxidant effects. The main purpose of this study was to evaluate the protective function of oxytocin (OT) in remote liver damage triggered by renal IR in rats. Twenty four rats were randomly divided into four different groups, each containing 8 rats. The groups were as follows: (1) Sham operated gr...

Objective(s): Gallic acid (GA), a potent anti-oxidant, plays an important role in reducing diabetic induced cardiac disorders. Therefore, the present investigation was purposed to determine the beneficial effect of GA in cardiac arrhythmias during reperfusion in diabetes induced by alloxan. Materials and Methods: Male Sprague-Dawley rats...

Journal: :Cellular physiology and biochemistry : international journal of experimental cellular physiology, biochemistry, and pharmacology 2017
Nandini D P K Manne Ravikumar Arvapalli Vincent A Graffeo Venkata V K Bandarupalli Tolou Shokuhfar Sweetu Patel Kevin M Rice Gautam Kumar Ginjupalli Eric R Blough

BACKGROUND Hepatic ischemia reperfusion is one the main causes for graft failure following transplantation. Although, the molecular events that lead to hepatic failure following ischemia reperfusion (IR) are diverse and complex, previous studies have shown that excessive formation of reactive oxygen species (ROS) are responsible for hepatic IR injury. Cerium oxide (CeO2) nanoparticles have been...

Journal: :The Journal of clinical investigation 1990
G K Bysani T P Kennedy N Ky N V Rao C A Blaze J R Hoidal

Reactive oxygen species are a major cause of damage occurring in ischemic tissue after reperfusion. During reperfusion transitional metals such as iron are required for reactive oxygen species to mediate their major toxic effects. Xanthine oxidase is an important source of reactive oxygen species during ischemia-reperfusion injury, but not in all organs or species. Because cytochrome P-450 enzy...

2015
Osman Tiryakioglu Kamuran Erkoc Bulent Tunerir Onur Uysal H. Firat Altin Tevfik Gunes Selim Aydin

OBJECTIVE The objective of this study was to examine the effects of iloprost and N-acetylcysteine (NAC) on ischemia-reperfusion (IR) injuries to the gastrocnemius muscle, following the occlusion-reperfusion period in the abdominal aorta of rats. MATERIALS AND METHODS Forty male Sprague-Dawley rats were randomly divided into four equal groups. Group 1: control group. Group 2 (IR): aorta was oc...

Journal: :Indian journal of experimental biology 2007
M Raghavendra Anshuman Trigunayat R K Singh S Mitra R K Goel S B Acharya

Possible effect of an ethanolic root extract of Pongamia pinnata (L) Pierre (P. pinnata) on oxidant-antioxidant status and histopathological changes in acute ischemia-reperfusion injury in the rat forebrain have been investigated. Further, its effect was also assessed on long-term cerebral hypoperfusion-induced changes in anxiety, cognitive and histopathological parameters. Cerebral post-ischem...

2012
Luping Huang Tatiana Belousova Minyi Chen Gabriel DiMattia Dajun Liu David Sheikh-Hamad

Reactive oxygen species, endothelial dysfunction, inflammation, and mitogen-activated protein kinases have important roles in the pathogenesis of ischemia/reperfusion kidney injury. Stanniocalcin-1 (STC1) suppresses superoxide generation in many systems through the induction of mitochondrial uncoupling proteins and blocks the cytokine-induced rise in endothelial permeability. Here we tested whe...

2017
Chie Takasu Nosratola D Vaziri Shiri Li Lourdes Robles Kelly Vo Mizuki Takasu Christine Pham Seyed H Farzaneh Mitsuo Shimada Michael J Stamos Hirohito Ichii

AIM To investigate the hypothesis that treatment with dimethyl fumarate (DMF) may ameliorate liver ischemia/reperfusion injury (I/RI). METHODS Rats were divided into 3 groups: sham, control (CTL), and DMF. DMF (25 mg/kg, twice/d) was orally administered for 2 d before the procedure. The CTL and DMF rats were subjected to ischemia for 1 h and reperfusion for 2 h. The serum alanine aminotransfe...

Journal: :American journal of physiology. Gastrointestinal and liver physiology 2006
Robert B Dorman Christian Wunder Hamida Saba Jennifer L Shoemaker Lee Ann MacMillan-Crow Robert W Brock

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...

Journal: :بینا 0
منصور شهریاری m shahriari ophthalmic research center, shahid beheshti university of medical sciences, tehran, iranدانشگاه علوم پزشکی شهید بهشتی- تهران- ایران نازنین بهناز n behnaz ophthalmic research center, shahid beheshti university of medical sciences, tehran, iranدانشگاه علوم پزشکی شهید بهشتی- تهران- ایران محمدعلی جوادی ma javadi ophthalmic research center, shahid beheshti university of medical sciences, tehran, iranدانشگاه علوم پزشکی شهید بهشتی- تهران- ایران

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...

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