نتایج جستجو برای: focal cerebral ischemia

تعداد نتایج: 300824  

2016
M. Aslani

BACKGROUND AND OBJECTIVE: Stroke is the third main cause of mortality and the most important origin of disability in the world. Atorvastatin has been shown to have strong anti-inflammatory and antioxidant effects on various pathological conditions. This study aimed to investigate the possible protective effects of atorvastatin on neuronal injury and damage in an experimental model of focal cere...

Journal: :Stroke 2001
H Yanamoto I Nagata Y Niitsu Z Zhang J H Xue N Sakai H Kikuchi

BACKGROUND AND PURPOSE The efficacy of hypothermic intervention for permanent focal ischemia has yet to be clarified. This study investigated the effect of a prolonged moderate or mild hypothermia on permanent focal ischemia in rats. METHODS Two permanent focal ischemia models in male Sprague-Dawley rats were used. Moderate (30 degrees C, in experiment 1) or mild (33 degrees C, in experiment ...

Introduction: Based on our previous findings, the treatment of stem cells alone or in combination with thyroid hormone (T3) and mild exercise could effectively reduce the risk of stroke damage in young mice. However, it is unclear whether this treatment is effective in aged or middle-aged mice. Therefore, this study designed to assess whether combination of Bone Marrow Stromal Cells (BMSCs) wit...

2012
Fengguo Zhai Xiuping Zhang Yue Guan Xudong Yang Yang Li Gaochen Song Lixin Guan

Rat models of focal cerebral ischemia/reperfusion injury were established by occlusion of the middle cerebral artery. Microarray analysis showed that 24 hours after cerebral ischemia, there were nine up-regulated and 27 down-regulated microRNA genes in cortical tissue. Bioinformatic analysis showed that bcl-2 was the target gene of microRNA-384-5p and microRNA-494, and caspase-3 was the target ...

Journal: :Molecular medicine reports 2012
Aimei Zhang Lunan Liang Huanfu Niu Peng Xu Yongnan Hao

The aim of this study was to determine the effects of VEGF treatment on focal cerebral ischemia in rats. Rats were administered PBS or VEGF at concentrations of 10, 20 or 30 µg/ml. The effects of VEGF on the rat infarct volume and neurological deficits were investigated. Transmission electron microscopy was used to observe the ultrastructure of th...

Journal: :International Journal of Experimental Diabesity Research 2003
Mark Britton Jose Rafols Sarah Alousi Joseph C. Dunbar

Apoptosis and neural degeneration are characteristics of cerebral ischemia and brain damage. Diabetes is associated with worsening of brain damage following ischemic events. In this study, the authors characterize the influence of focal cerebral ischemia, induced by middle cerebral artery occlusion, on 2 indexes of apoptosis, TUNEL (terminal deoxynucleotidyl transferase-mediated deoxyuridine 5-...

Background and Objectives: In the early stages of brain ischemia, the production of free radicals increases. Salvia officinalis is a rich source of antioxidant compounds. Therefore, in this study the effects of hydroalcoholic extract of Salvia officinalis on blood -brain barrier permeability and neurological deficits have been studied. Materials and Methods: In this experimental study 35 m...

Journal: :Molecules 2012
Lihua Qian Minzhe Shen Hao Tang Yuping Tang Li Zhang Yifan Fu Qianping Shi Nian-Guang Li

Scutellarein, the main metabolite of scutellarin in vivo, has relatively better solubility, bioavailability and bio-activity than scutellarin. However, compared with scutellarin, it is very difficult to obtain scutellarein from Nature. Therefore, the present study focused on establishing an efficient route for the synthesis of scutellarein by hydrolyzing scutellarin. Neurological deficit score ...

2018
Juan Liu Kun-Shan Zhang Bin Hu Si-Guang Li Qing Li Yu-Ping Luo Yang Wang Zhi-Feng Deng

Although extensive studies have identified large number of microRNAs (miRNAs) and long noncoding RNAs (lncRNAs) in ischemic stroke, the RNA regulation network response to focal ischemia remains poorly understood. In this study, we simultaneously interrogate the expression profiles of lncRNAs, miRNAs, and mRNAs changes during focal ischemia induced by transient middle cerebral artery occlusion. ...

Journal: :Stroke 1992
E H Lo G K Steinberg

BACKGROUND AND PURPOSE Mild hypothermia has been shown to ameliorate neuronal damage due to cerebral ischemia. In our study, the influence of mild-to-moderate hypothermia was examined in a rabbit model of focal cerebral ischemia. METHODS After 4 hours of permanent ischemia induced by occlusion of the anterior and middle cerebral and internal carotid arteries, somatosensory evoked potentials a...

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