A more consistent intraluminal rhesus monkey model of ischemic stroke

查看全文 作　　者：Bo [1]Zhao;Guowei [1]Shang;Jian [1]Chen;Xiaokun [1]Geng;Xin [2]Ye;Guoxun [2]Xu;Ju [3]Wang;Jiasheng [4]Zheng;Hongjun [4]Li;Fauzia [5]Akbary;Shengli [3]Li;Jing [3]Lu;Feng [1]Ling;Xunming [1,6]Ji

机构地区：[1]Department of Neurosurgery, Xuanwu Hospital, Capital Medical University;[2]Department of Anesthesiology, Xuanwu Hospital, Capital Medical University;[3]Department of Laboratory Animal Science, Capital Medical University;[4]Radiology Department, Beijing Youan Hospital, Capital Medical University;[5]Wayne State University School of Medicine;[6]Center of Stroke, Beijing Institute for Brain Disorders

出　　处：《Neural Regeneration Research》索引2014年第9卷第23期,共8页

基　　金：supported by grants from the National Key Basic Research Program(973 Program)of China,No.2011CB707804;Beijing Municipal Science and Technology Project,No.2121100005312016 摘　　要：Endovascular surgery is advantageous in experimentally induced ischemic stroke because it causes fewer cranial traumatic lesions than invasive surgery and can closely mimic the pathophysiology in stroke patients. However, the outcomes are highly variable, which limits the accuracy of evaluations of ischemic stroke studies. In this study, eight healthy adult rhesus monkeys were randomized into two groups with four monkeys in each group: middle cerebral artery occlusion at origin segment(M1) and middle cerebral artery occlusion at M2 segment. The blood flow in the middle cerebral artery was blocked completely for 2 hours using the endovascular microcoil placement technique(1 mm × 10 cm)(undetachable), to establish a model of cerebral ischemia. The microcoil was withdrawn and the middle cerebral artery blood flow was restored. A reversible middle cerebral artery occlusion model was identified by hematoxylin-eosin staining, digital subtraction angiography, magnetic resonance angiography, magnetic resonance imaging, and neurological evaluation. The results showed that the middle cerebral artery occlusion model was successfully established in eight adult healthy rhesus monkeys, and ischemic lesions were apparent in the brain tissue of rhesus monkeys at 24 hours after occlusion. The rhesus monkeys had symptoms of neurological deficits. Compared with the M1 occlusion group, the M2 occlusion group had lower infarction volume and higher neurological scores. These experimental findings indicate that reversible middle cerebral artery occlusion can be produced with the endovascular microcoil technique in rhesus monkeys. The M2 occluded model had less infarction and less neurological impairment, which offers the potential for application in the field of brain injury research. 关键词：脑缺血恒河猴模型中风数字减影血管造影磁共振成像腔内微创手术

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A more consistent intraluminal rhesus monkey model of ischemic stroke

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