[1]卫晨,陶国现,唐荣平,等.食蟹猴脑缺血过程中皮层谷氨酸水平动态变化的研究[J].第三军医大学学报,2017,39(17):1728-1733.
 WEI Chen,TAO Guoxian,TANG Rongping,et al.Dynamic changes of glutamate during cerebral ischemia in the cortex of cynomolgus monkeys[J].J Third Mil Med Univ,2017,39(17):1728-1733.
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《第三军医大学学报》[ISSN:1000-5404/CN:51-1095/R]

卷:
39卷
期数:
2017年第17期
页码:
1728-1733
栏目:
基础医学
出版日期:
2017-09-15

文章信息/Info

Title:
Dynamic changes of glutamate during cerebral ischemia in the cortex of cynomolgus monkeys
作者:
卫晨陶国现唐荣平刘国龙张志明岳峰
广西医科大学转化医学研究中心,长寿与老年相关疾病教育部重点实验室;广西南宁灵康赛诺科生物科技有限公司;第三军医大学新桥医院神经外科;405360098 KY USA,Department of Anatomy and Neurobiology, University of Kentucky College of Medicine, Lexington;首都医科大学宣武医院神经生物研究室
Author(s):
WEI Chen TAO Guoxian TANG Rongping LIU Guolong ZHANG Zhiming YUE Feng

Center for Translational Medicine, Key Laboratory of Longevity and Aging-related Disease of Ministry of Education, Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, 530021, China; Wincon Thera Cells Biotechnologies Co. Ltd., Nanning, Guangxi Zhuang Autonomous Region, 530003, China; Department of Neurosurgery, Xinqiao Hospital, Third Military Medical University, Chongqing, 400037, China; Department of Anatomy and Neurobiology, University of Kentucky College of Medicine, Lexington, 405360098, KY, USA; 5Department of Neurobiology, Xuanwu Hospital of Capital Medical University, Beijing, 100053, China

关键词:
脑缺血谷氨酸大脑中动脉食蟹猴
Keywords:
brain ischemia glutamate acid middle cerebral artery cynomolgus monkeys
分类号:
R341.7;R362;R743.31
文献标志码:
A
摘要:

目的    探讨食蟹猴脑缺血过程中皮层细胞外谷氨酸水平动态变化。方法    取3只(7.3±1.5)岁的食蟹猴,将大脑中动脉(middle cerebral artery,MCA)M1段近端夹闭1 h后放开,建立食蟹猴脑缺血性模型,并通过磁共振成像检查(MRI)、神经功能缺损评分评价临床表现。在MCA M1夹闭前、夹闭过程中、夹闭放开后和术后第1、2周于手术同侧大脑皮层运动区同一部位,运用电化学微电极传感器技术检测该部位谷氨酸水平。结果    短期夹闭MCA M1段的食蟹猴大脑皮层运动区谷氨酸水平在MCA M1夹闭过程中较夹闭前上升(P=0.003);夹闭放开后较夹闭过程中的变化差异无统计学意义(P=0877);术后第1周较夹闭放开后下降(P=0.004);术后第2周较术后第1周的变化差异无统计学意义(P=0.085)。结论    脑缺血时可能加速皮层细胞外谷氨酸的释放,再灌注后谷氨酸的释放可能有所减弱或处于动态平衡。

Abstract:

Objective     To explore the dynamic changes of glutamate in the cortex of cynomolgus monkeys during cerebral ischemia. Methods     Proximal M1 segment of middle cerebral artery (MCA) was occluded for 1 h in 3 young cynomolgus monkeys (7.3±1.5 years old) to induce cerebral ischemia. Magnetic resonance imaging and neurologic deficit scoring were used to evaluate the ischemia and observe the manifestations, respectively. Fast Analytical Sensing Technology (FAST) was applied to record the content of cortex glutamate in the same site of ipsilateral primary motor cortex in the periods of pre-, during, and post-occlusion, and at 1 and 2 weeks after surgery. Results         Compared with pre-occlusion, the content of glutamate was increased significantly in the process of occluding in the MCA M1 (P=0.003); No significant difference was observed in the content during occluding and post-occlusion (P=0.877). The content in the first week was decreased obviously as compared with post-occlusion (P=0.004), but it showed no statistical difference with that in the second week (P=0.085). Conclusion     Cerebral ischemia may potentially accelerate the extracellular glutamate release in the cortex, but reperfusion may ameliorate or balance off the glutamate release.

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更新日期/Last Update: 2017-09-04