中国组织工程研究 ›› 2014, Vol. 18 ›› Issue (2): 225-230.doi: 10.3969/j.issn.2095-4344.2014.02.011

• 组织构建实验造模 experimental modeling in tissue construction • 上一篇    下一篇

改良线栓法制作SD大鼠局灶性脑缺血再灌注模型

孙念霞1,高维娟1, 2,易忠良1   

  1. 1承德医学院病理生理学教研室,河北省承德市 067000;2河北化工医药职业技术学院,河北省石家庄市 050026
  • 收稿日期:2013-10-14 出版日期:2014-01-08 发布日期:2014-01-08
  • 通讯作者: 高维娟,博士,教授,硕士生导师,承德医学院病理生理学教研室,河北省承德市 067000;河北化工医药职业技术学院,河北省石家庄市 050026
  • 作者简介:孙念霞,女,1986年生,山东省菏泽市人,汉族,承德医学院在读硕士,主要从事脑缺血再灌注发生机制研究。
  • 基金资助:

    河北省科技支撑计划资助项目(13272504D)

Improved suture occlusion method to prepare focal cerebral ischemia reperfusion models in Sprague-Dawley rats

Sun Nian-xia1, Gao Wei-juan1, 2, Yi Zhong-liang1   

  1. 1Department of Pathophysiology, Chengde Medical University, Chengde 067000, Hebei Province, China; 2Hebei Chemical and Pharmaceutical College, Shijiazhuang 050026, Hebei Province, China
  • Received:2013-10-14 Online:2014-01-08 Published:2014-01-08
  • Contact: Gao Wei-juan, M.D., Professor, Master’s supervisor, Department of Pathophysiology, Chengde Medical University, Chengde 067000, Hebei Province, China; Hebei Chemical and Pharmaceutical College, Shijiazhuang 050026, Hebei Province, China
  • About author:Sun Nian-xia, Studying for master’s degree, Department of Pathophysiology, Chengde Medical University, Chengde 067000, Hebei Province, China snx1985@163.com
  • Supported by:

    the Scientific Supportive Plan of Hebei Province, No. 13272504D

摘要:

背景:线栓法是制作局灶性脑缺血再灌注模型的常用方法,防治大出血和顺利插线是其造模成功的关键和研究热点。
目的:对Longa线栓法进行改良,以期有效防治术中大出血和提高造模成功率。
方法:制备模型时颈外动脉两断端除了手术线结扎外,线结外端用电刀夹闭;插线时借助弯镊的力量使鱼线沿血管前内侧壁(翼腭动脉分叉处颈内动脉血管的方向)前行。术后进行大鼠行为评分,计算脑梗死体积和光镜下观察组织病理学变化。
结果与结论:电刀夹闭后的血管从横切面上的“圆”形变成“一”字形,线结不易脱落,有效防治术中大出血。借助弯镊的力量,可使插线成功率明显提高。模型大鼠脑梗死体积均明显增加,脑组织病理损伤加重。结果可见改良线栓法制作SD大鼠局灶性脑缺血再灌注模型,可有效防止线结脱落,提高插线成功率,模型制备成功。



中国组织工程研究
杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程


全文链接:

关键词: 组织构建, 组织工程, 组织构建实验造模, 线栓法, SD大鼠, 颈外动脉, 局灶性脑缺血再灌注, 动物模型

Abstract:

BACKGROUND: During the progress of focal cerebral ischemia-reperfusion in rat with transient suture occlusion, bleeding combating and the line being plugged into the cerebral middle artery smoothly are important for successful modeling and research focus.
OBJECTIVE: To improve Longa suture occlusion method for focal cerebral ischemia reperfusion model in Sprague-Dawley rats in order to establish a simple surgical procedure with low rate of intraoperative bleeding and high rate of successful models.
METHODS: The two ends of the external carotid artery were clipped with electric knife, in addition to ligation of surgery lines intraoperatively; with the help of pincett, a fishing line was plugged into the carotid artery along the anteriomedialis artery wall (the direction of the internal carotid artery from the pterygopalatine arterial bifurcation). Postoperative behavior scores in rats, infarct volume calculation and histopathological evaluation under optical microscope were done.
RESULTS AND CONCLUSION: Transverse sections of the external carotid artery were changed from a “O” shape to a “-” shape after being clipped with electric knife. Subsequently, line nodes were not easy to fall off any more, effectively preventing intraoperative bleeding. With the power of pincett, the rate of plugging the fishing line into artery was significantly increased. Rat’s neurological score and infarct volumes were significantly increased, and brain tissue pathological injury worsened. The modified suture occlusion method for focal cerebral ischemia reperfusion models effectively prevented line nodes off, successfully increased the rate of suture occlusion and models in Sprague-Dawley rats were developed successfully.



中国组织工程研究
杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程


全文链接:

Key words: models, animal, reperfusion injury, carotid artery, external, rats, Sprague-Dawley

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