نتایج جستجو برای: brain ischemia tolerance

تعداد نتایج: 663523  

Journal: :razavi international journal of medicine 0
shamsi darabi department of physiology and biophysics, faculty of medicine, baqiyatallah university of medical sciences, tehran, iran mohammad taghi mohammadi department of physiology and biophysics, faculty of medicine, baqiyatallah university of medical sciences, tehran, iran; associate professor of physiology, department of physiology and biophysics, faculty of medicine, baqiyatallah university of medical sciences, tehran, iran. tel: ++98-2182483419 zeinab sadat sobhani department of physiology and biophysics, faculty of medicine, baqiyatallah university of medical sciences, tehran, iran

conclusions our findings indicate that fullerenol nanoparticles decrease the brain infarction through enhancement of the sod activity during cerebral ischemia-reperfusion injury. results occlusion of mca induced considerable infarction and lesion in ischemic hemispheres of control ischemic rats (527 ± 59 mm3) in accompany with a decrease in the glutathione content (45%), and sod activity (29%) ...

Journal: :journal of herbal drugs (an international journal on medicinal herbs) 2014
maryam rafieirad khadijeh ghasemzadeh-dehkordi

background & aim: free radicals are produced in ischemic processes. nerve damage caused by free radicals may play a role in neurological diseases and antioxidants are protective activity. ellagic acid is a polyphenol compound with antioxidant properties which is found in fruits like pomegranate, blackberry, and all types of mulberry. this study aimed to evaluate the effect of 14 days of ora...

Kazem Parivar Mehdi Rezayat, Mehrdad Hashemi, Reza Mahdian Soyar Sari,

Ischemia-reperfusion injury is the tissue damage caused when blood supply returns to the tissue after a period of ischemia or lack of oxygen. Ischemia-reperfusion brain injury initiates an inflammatory response involving the expression of adhesion molecules and cytokines. Twenty–four male Wistar rats (250-300 g body wt) were used in this study. The animals were divided into four groups of 6 rat...

Kazem Parivar Mehdi Rezayat, Mehrdad Hashemi, Reza Mahdian Soyar Sari,

Ischemia-reperfusion injury is the tissue damage caused when blood supply returns to the tissue after a period of ischemia or lack of oxygen. Ischemia-reperfusion brain injury initiates an inflammatory response involving the expression of adhesion molecules and cytokines. Twenty–four male Wistar rats (250-300 g body wt) were used in this study. The animals were divided into four groups of 6 rat...

Journal: : 2022

The high prevalence of stroke worldwide requires a revision the modern doctrine management patients with cerebrovascular disease. It is obvious that only aggressive modification risk factors for vascular pathology does not guarantee prevention acute accident, which an intermediate or final stage In this regard, use neuroprotectors, including vinpocetine, can increase tolerance brain tissue to h...

Journal: :Stroke 2004
Holly L Rosenzweig Nikola S Lessov David C Henshall Manabu Minami Roger P Simon Mary P Stenzel-Poore

BACKGROUND AND PURPOSE Tolerance to ischemic brain injury is induced by several preconditioning stimuli, including lipopolysaccharide (LPS). A small dose of LPS given systemically confers ischemic protection in the brain, a process that appears to involve activation of an inflammatory response before ischemia. We postulated that LPS preconditioning modulates the cellular inflammatory response a...

Introduction: Arterial hypertension is one of the causes of stroke, and as one of the vasculotoxic conditions intensifies ischemic stroke complications. The aim of the present study was to analyze the effects of short-term cerebral hypertension on ischemia/reperfusion injury and pathogenesis of ischemic stroke. Methods: The experiments were performed on three groups of rats (N=36) Sham, cont...

Journal: :iranian journal of medical sciences 0
hamdolah panahpour department of physiology and pharmacology, school of medicine, ardabil university of medical sciences, ardabil, iran ali akbar nekooeia department of pharmacology, school of medicine, shiraz university of medical sciences, shiraz. iran gholam abbas dehghani department of physiology, school of medicine, shiraz university of medical sciences, shiraz, iran

background: stroke is the third leading cause of invalidism and death in industrialized countries. there are conflicting reports about the effects of angiotensin ii on ischemia-reperfusion brain injuries and most data have come from chronic hypertensive rats. in this study, hypotensive and non-hypotensive doses of candesartan were used to investigate the effects of angiotensin ii at1 receptor b...

2010
Feng Zhang Yi Wu Jie Jia Qing-Chuan Guo Yong-Shan Hu

Electroacupuncture, the integration of traditional Chinese acupuncture and modern electrotherapy, has been used for clinical treatment of cerebral ischemic disease in both eastern and western countries; however, the mechanism underlying its effects is still unknown. It is well known that excessive glutamate results in neuronal excitotoxicity after ischemic stroke. Previous studies have indicate...

Journal: :Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism 2002
Michiko Nakamura Kazuhiko Nakakimura Mishiya Matsumoto Takefumi Sakabe

Two types of ischemic tolerance in the brain, rapid and delayed, have been reported in terms of the interval between the conditioning and test insults. Although many reports showed that delayed-phase neuroprotection evoked by preconditioning is evident after 1 week or longer, there have been a few investigations about rapidly induced tolerance, and the reported neuroprotective effects become am...

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