机构:[1]Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China神经外科首都医科大学宣武医院[2]Department of Anesthesiology, Xuanwu Hospital, Capital Medical University, Beijing, China麻醉手术科首都医科大学宣武医院[3]Department of Laboratory Animal Science, Capital Medical University, Beijing, China[4]Radiology Department, Beijing Youan Hospital, Capital Medical University, Beijing, China[5]Wayne State University School of Medicine, Detroit, MI, USA[6]Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China
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 x 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 The microcoil was withdrawn and the middle cerebral artery blood flow was restored.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 MI 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.
基金:
the National Key Basic Research Program (973 Program) of China, (No. 2011CB707804);
Beijing Municipal Science and Technology Project, (No. 2121100005312016).
第一作者机构:[1]Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
通讯作者:
通讯机构:[*1]Department of Neurology, Xuanwu Hospital, Capital Medical University, Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China 100053, Beijing, China
推荐引用方式(GB/T 7714):
Bo Zhao,Guowei Shang,Jian Chen,et al.A more consistent intraluminal rhesus monkey model of ischemic stroke[J].NEURAL REGENERATION RESEARCH.2014,9(23):2087-2094.doi:10.4103/1673-5374.147936.
APA:
Bo Zhao,Guowei Shang,Jian Chen,Xiaokun Geng,Xin Ye...&Xunming Ji.(2014).A more consistent intraluminal rhesus monkey model of ischemic stroke.NEURAL REGENERATION RESEARCH,9,(23)
MLA:
Bo Zhao,et al."A more consistent intraluminal rhesus monkey model of ischemic stroke".NEURAL REGENERATION RESEARCH 9..23(2014):2087-2094