نتایج جستجو برای: brain ischemia

تعداد نتایج: 541296  

Background & Aims: According to the recent studies, fullerene nanoparticles have a potent scavenging property for free radicals in biological environments. Since reactive oxygen species (ROS) is a fundamental mechanism of brain damage in stroke, we aimed to evaluate the neuroprotective effects of fullerene nanoparticles on ischemia-induced brain injuries in experimental model of stroke...

دارابی, شمسی, محمدی, محمدتقی, نوروززاده, علی,

Background and purpose: Overproduction of free radicals after brain ischemia exacerbates brain infarction and edema specifically during early reperfusion. The scavenging property of water-soluble fullerene derivatives is proven, so, the aim of this study was to evaluate the effects of fullerenol nanoparticles on brain infarction and edema, especially oxidative damages during reperfusion in an e...

Journal: :iranian biomedical journal 0
حمداله پناهپور hamdollah panahpour غلامعباس دهقانی gholam abbas dehghani

background: central renin angiotensin system has an important role on the cerebral microcirculation and metabolism. our previous work showed that inhibition of angiotensin converting enzyme (ace) activity prior to induction of ischemia protected the brain from severe ischemia/reperfusion (i/r) injuries. this study evaluated the impacts of post-ischemic inhibition of ace, enalapril, on brain inf...

Journal: Journal of Herbal Drugs 2014
Khadijeh Ghasemzadeh-Dehkordi Maryam Rafieirad,

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 oral ad...

Objective(s): Glutamate is the most widespread neurotransmitter in the central nervous system and has several functions as a neuromodulator in the brain although in pathological conditions like ischemia it is excessively released causing cell death. Under physiological conditions, glutamate is rapidly scavenged from the synaptic cleft by excitatory amino-acid transport...

Journal: :Biomolecules 2021

The cerebral endothelium is an active interface between blood and the central nervous system. In addition to being a physical barrier brain, also actively regulates metabolic homeostasis, vascular tone permeability, coagulation, movement of immune cells. Being part blood–brain barrier, endothelial cells brain have specialized morphology, physiology, phenotypes due their unique microenvironment....

Gholam Abbas Dehghani, Hamdollah Panahpour,

Background: Central renin angiotensin system has an important role on the cerebral microcirculation and metabolism. Our previous work showed that inhibition of angiotensin converting enzyme (ACE) activity prior to induction of ischemia protected the brain from severe ischemia/reperfusion (I/R) injuries. This study evaluated the impacts of post-ischemic inhibition of ACE, enalapril, on brain inf...

Journal: :physiology and pharmacology 0
hamdollah panahpour ali akbar nekooeian gholam abbas dehghani medicinal & natural products chemistry research center, shiraz university of medical sciences, shiraz, iran

introduction: development of brain edema following focal cerebral ischemia exacerbates primary ischemic injury. blood brain barrier (bbb) opening is an important part of edema named as vasogenic brain edema. in this study, quantitative alterations of bbb permeability is experimentally evaluated using transient focal cerebral ischemia in the rat. methods: two groups of male rats (ischemic and sh...

Journal: Journal of Herbal Drugs 2014
Khadijeh Ghasemzadeh-Dehkordi Maryam Rafieirad,

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 oral ad...

اسدی, مجید, بیگدلی, محمد رضا, ربیعی, زهرا,

Background and Objective: Stroke is the third most common cause of death in industrialized countries after cardiovascular diseases and cancer. Despite numerous defenses, the brain is vulnerable to oxidative stress resulting from ischemia and reperfusion. Due to the relationship between olive oil consumption and low cardiovascular mortality and morbidity, this study was accomplished to investiga...

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