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An Integrated Stroke Model with a Consistent Penumbra for the Assessment of Neuroprotective Interventions

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单位: [1]Natl Cerebral & Cardiovasc Res Ctr, Lab Neurol & Neurosurg, Suita, Osaka 5658565, Japan [2]Natl Cerebral & Cardiovasc Ctr, Dept Neurosurg, Suita, Osaka, Japan [3]Natl Cerebral & Cardiovasc Ctr, Integrated Stroke Imaging Ctr, Suita, Osaka, Japan [4]Osaka Univ, Grad Sch Med, Dept Cardiovasc Sci, Div Surg Med, Suita, Osaka, Japan [5]Rakuwa Kai Otowa Hosp, Res Lab, Kyoto, Japan [6]China Japan Friendship Hosp, Dept Neurosurg, Beijing, Peoples R China [7]Baoding 1 Hosp, Dept Neurosurg, Baoding, Peoples R China
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关键词: Animal model Ischemic stroke 3-vessel occlusion Surgical procedures Preclinical study

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Background/Aim: A longer period of vessel occlusion reduces the coefficient of variation of the infarct lesion size ['infarct variation coefficient' (IVC)]due to a gradual expansion of the lesion within a limited territory defined by the vascular anatomy, but it increases the mortality rate. A crucial issue in the induction of experimental focal cerebral ischemia has been to achieve a low IVC value and a low mortality rate. We attempted to improve IVC and mortality using the 3-vessel occlusion model. Methods: We introduced a new, trans-temporal fascia approach to expose the zygomatic arch, in which the fascia of the temporal muscle is cut and retracted dorsally together with the facial nerve and the vein en bloc. Results/Conclusion: The approach avoided traumatic venous bleeding around the zygomatic arch. We established a bloodless model of focal ischemia that can produce a consistent degree of reduction in the regional cerebral blood flow within the ischemic penumbra. The model, charac-terized by a 15-min ischemia, an IVC of 15-21%, and low mortality after ischemia, is expected to produce reliable preclinical evidence in the assessment of neuroprotective interventions for ischemic stroke. The entire procedure is presented in the online supplementary video (C) 2013 S. Karger AG, Basel

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出版当年[2013]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[2025]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[2012]版:
Q3 CLINICAL NEUROLOGY Q4 NEUROSCIENCES
最新[2023]版:
Q3 CLINICAL NEUROLOGY Q3 NEUROSCIENCES

影响因子: 最新[2023版] 最新五年平均[2021-2025] 出版当年[2012版] 出版当年五年平均[2008-2012] 出版前一年[2011版] 出版后一年[2013版]

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第一作者单位: [1]Natl Cerebral & Cardiovasc Res Ctr, Lab Neurol & Neurosurg, Suita, Osaka 5658565, Japan [2]Natl Cerebral & Cardiovasc Ctr, Dept Neurosurg, Suita, Osaka, Japan [6]China Japan Friendship Hosp, Dept Neurosurg, Beijing, Peoples R China
通讯作者:
通讯机构: [1]Natl Cerebral & Cardiovasc Res Ctr, Lab Neurol & Neurosurg, Suita, Osaka 5658565, Japan [4]Osaka Univ, Grad Sch Med, Dept Cardiovasc Sci, Div Surg Med, Suita, Osaka, Japan [*1]Natl Cerebral & Cardiovasc Res Ctr, Lab Neurol & Neurosurg, 5-7-1 Fujishiro Dai, Suita, Osaka 5658565, Japan
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