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Evaluation of the functions of hindlimb in rabbit graded spinal cord ischemia/reperfusion injury by ethology
Liu Chong1,Shi Jin-shan1,Zhang jian-ping1,Feng ya-ping1,Zhang fang-xiang1,FANG Hua1,2*,Wang Quan-yun2.(1.Department of Anesthesiology Guizhou Provincial People,s Hospital, Guiyang 550002,China;2.Department of Anesthesiology,West China Hospital,Sichuan University,Chengdu 610041,China)
【Abstract】 Objective To make a ischemia/reperfusion injury model of spinal cord and investigate the relationship between time window of spinal cord ischemia/reperfusion injury and extent of function changes of behavior in rabbits. Methods 40 rabbits were equally randomized into the sham-operation group、ischemia for 15 min、30min、45min and 60min group. The spinal cord ischemia-reperfusion model was made by clamping the infrarenal aortic in rabbits. The sensory、motor and reflex functions of spinal cord were evaluated after reperfusion by the Reuters method and neurological functions of hind extremities were scored after reperfusion through the Jacobs and Rivlin method. Results The Reuter’s score during reperfusion from the highest to the lowest in the order was generally ischemia for 60 min group、ischemia for 45 min group、ischemia for 30 min group( andischemia for 15 min group ). The Jacobs and Rivlin score during reperfusion from the highest to the lowest in the order was generally ischemia for ischemia for 30 min group( andischemia for 15 min group ) 、ischemia for 45 min group、60 min group. Conclusions It is a very good model of ischemia-reperfusion injury in spinal cord.Mild , moderate and severe ischemia-reperfusion injury of regional spinal cord ischemia can be simulated by the occlusion of the infrarenal aortic for 30 minutes , 60 minutes and 90 minutes respectively.The motor funtion of rabbit hind limbs was significantly worsened due to prolonging the ischemic time. The time window of spinal cord ischemia-reperfusion injury is limited from 30 to 45 min.
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(1.Affiliated Hospital of Nanjing University of Chinese Medicine,Nanjiang 210029,Jiangsu,China;
2.Nanjing University of Chinese Medicine, Nanjing 210029,Jiangsu,China)
Abstract:Objective:To observe the effect of huayutongluofang on expression of ROS,NOS and iNOS during the reperfusion after middle cerebral artery occlusion in rats. Methods:The cerebral IR rats model were established by middle cerebral artery occlusion.Treated the cerebral IR rats with huayutongluofang,then observing the changes of MDA,SOD,NOS and iNOS in brain tissue. Results:Huayutongluofang could reduce the expression of MDA,iNOS and NOS in brain tissue.While, after huayutongluofang treatment,the SOD level in brain tissue was increased.Conclusions:During the reperfusion after middle cerebral artery occlusion,huayutongluofang can restrain the Lipid Peroxidation,promote removal of oxygen free radicals, compete oxygen-free radical injury. While,runhoukaiyinkeli could reduce the possibility of nerve damage,protect neural cells from injured.省略。
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第8篇:動物行為學研究方法范文
關鍵詞:安宮牛黃丸;缺血性中風;大腦中動脈梗死大鼠模型;細胞因子
中圖分類號:R743 R289.5 文獻標識碼:A 文章編號:1672-1349(2011)06-0710-03The Protective Effect of Angong Niuhuang Pill on Experimental Cerebral Ischemia
Liu Zongtao,Sha Dike,Liu Yuanxin,et al
The Affiliated Hospital of Traditional Chinese Medicine,Xinjiang Medical University (Urumqi 830000)
Abstract:Objective To investigate the protective effect of Angong Niuhuang pill on experimental cerebral ischemia and its mechanism.Methods Rats were randomly divided into five groups:Sham group,model group,Angong Niuhuang pill group,western medicine group,Chinese traditional medicine with western medicine group.The models with focal cerebral ischemia of rat were established by the suture occluded method.Neurology evaluation was studied at 6 h,24 h,48 h and 72 h after middle cerebral artery occlusion(MCAO)and cerebral ischemia.The coefficient of brain and water content in whole brain were examined.The level of serum interleukin 10 (IL-10) in abdominal aorta was detected by enzyme linked in ununosorbent assay.Results Within four days of MCAO,different degrees of motion disturbances were observed in all rats except sham group.The coefficient of brain,the water content of whole brain and the level of serum IL-10 were obviously increased (P
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第9篇:動物行為學研究方法范文
[關鍵詞] 腸易激綜合征;動物模型;建模方法;觀測指標
[中圖分類號] R574 [文獻標識碼] A [文章編號] 1673-7210(2016)09(c)-0047-04
[Abstract] Irritable bowel syndrome (IBS) is a kind of functional bowel disease, and its etiology and pathogenesis has not been fully elucidated. At present, the main treatment principle is still symptomatic therapy. There are a lot of researches on IBS animal model, in which rats and mice are the most commonly animals used. Model construction methods are so many, such as physical and chemical stimulation, psychological stress, drug induced diarrhea, pathogen infection, compound method and others. The observation indexes included general situation, intestinal sensitivity test, intestinal transit function, pathological examination, and the detection of related brain gut peptide. Animal model now proceed only from a certain aspect of pathophysiological mechanism, however the pathogenesis of IBS is complex, inducing factors individual and diversified. So current animal model has limitations to some extent, and need further study. This paper aims to review the research progress on animal model of IBS.
[Key words] Irritable bowel syndrome; Animal model; Model construction methods; Observation indexes
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