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Effect of remote ischemic postconditioning on an intracerebral hemorrhage stroke model in rats

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机构: [1]Institute of Hypoxia Medicine, Xuanwu Hospital, Capital Medical University, Beijing, China, [2]Department of Neurology, LuHe Hospital, Beijing, China, [3]Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, USA, [4]Cerebrovascular Diseases Research Institute,Xuanwu Hospital, Capital Medical University, Beijing, China [5]Department of Neurosurgery,Xuanwu Hospital, Capital Medical University, Beijing, China [6]Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
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关键词: Acute stroke Blood brain barrier Brain infarction Edema Brain ICH

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Background and purpose: While recent studies suggest that remote ischemic postconditioning (RIP) therapy may be of benefit to patients with acute ischemic stroke, RIP's effects on intracerebral hemorrhage (ICH) still remains unclear. In the present study, the use of RIP in a rat model ICH was investigated to elucidate any potential beneficial or detrimental effects as determined by motor testing, blood brain barrier integrity, and brain water content, as well as aquaporin-4 (AQP-4) and matrix metalloproteinase-9 (MMP-9) expression. Methods: ICH was induced in Sprague-Dawley rats and they were randomized into either a control (n=24) or RIP treatment (n=24) group. RIP was performed by repetitive, brief occlusion and release of the bilateral femoral arteries. Functional outcome in each group was assessed by neurologic deficits on vibrissae-elicited forelimb placing test and a 12-point outcome scale. At 72 hours, brain blood volume, water content, blood-brain barrier (BBB) permeability, and protein expression of AQP-4 and MMP-9 were determined. Results: This collagenase model yielded well-defined striatal hematomas. Vibrissae-elicited forelimb placement was significantly (P<0.01) affected by ICH. However, there was no significant difference between the RIP and control groups at either 24 or 72 hours. A 12-point neurological deficit score also failed to differentiate between the RIP and control. There were no significant differences between the two groups in cerebral blood volumes, brain water content, Evans blue extravasations, and expressions of AQP-4 and MMP-9. Conclusions: Although RIP did not show a beneficial effect in our ICH model, treatment with RIP did not exacerbate ICH.

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出版当年[2011]版:
大类 | 4 区 医学
小类 | 4 区 临床神经病学 4 区 神经科学
最新[2023]版:
大类 | 4 区 医学
小类 | 4 区 临床神经病学 4 区 神经科学
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出版当年[2010]版:
Q3 CLINICAL NEUROLOGY Q4 NEUROSCIENCES
最新[2023]版:
Q3 CLINICAL NEUROLOGY Q4 NEUROSCIENCES

影响因子: 最新[2023版] 最新五年平均 出版当年[2010版] 出版当年五年平均 出版前一年[2009版] 出版后一年[2011版]

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第一作者机构: [1]Institute of Hypoxia Medicine, Xuanwu Hospital, Capital Medical University, Beijing, China, [2]Department of Neurology, LuHe Hospital, Beijing, China,
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通讯机构: [*1]Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Chang Chun Road 45, Beijing 100053, China.
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