实验动物科学 ›› 2013, Vol. 30 ›› Issue (04): 13-17.

• 研究 论著 • 上一篇    下一篇

大鼠脊髓楔型半切空洞模型的建立及评估

  

  1. ( 1. 牡丹江医学院,牡丹江157011) ( 2. 牡丹江医学院红旗医院,牡丹江157011)
  • 出版日期:2013-08-31 发布日期:2014-05-13
  • 基金资助:

    国家自然科学基金项目( No. 81171467) ; 黑龙江省卫生科技计划项目资助( No. 2010 - 241)

Establishment and Evaluation of a Wedged-block-hemisected Injury Model in Rats Spinal Cord

  • Online:2013-08-31 Published:2014-05-13

摘要: 摘要: 目的建立一种新型大鼠脊髓半切模型,为临床脊髓空洞损伤研究提供适宜的动物模型。方法25 只SD 大鼠随机分为脊髓楔型块状半切组( A 组,n = 10) 、假手术组( B 组,n = 10) 和正常对照组( C 组,n = 5) 。术后采用 BBB 运动功能评分、斜板试验、HE 染色和核磁共振( MRI) 检测综合评价脊髓半切模型的稳定性。结果术后A 组 大鼠伤侧后肢BBB 运动功能评分及斜板维持最大角度值显著低于B 组和C 组( P < 0. 05) ,而这些指标在B 组和C 组之间没有明显差异; 术后28 d HE 和MRI 检测显示脊髓损伤区( A 组) 灰质和白质发生明显的形态学改变。结论 通过该方法建立的脊髓半切模型稳定、可靠,适于脊髓空洞性损伤的研究。

关键词: 脊髓楔型半切, 动物模型, 大鼠

Abstract: Abstract: Objective Establishment a novel hemisected spinal cord injury model with rats to supply model for clinical research. Method 25 SD rats were randomly divided into wedged-block hemisected group ( A group,n = 10) ,sham operation group( B group,n = 10) and control group ( C group,n = 5) . After operation,the stability of the model was comprehensive evaluated by grading the scores of Basso-Beattie-Bresnahan ( BBB) , swash plate test, HE staining and MRI assay. Result After operation,the mean scores of BBB in injured hind limb and maximum angle of swash plate in group A were significantly lower than group C and B( P < 0. 05) ,but these parameters without different between B group and C group; 28 days after operation,HE staining and MRI assay shows a significant morphological changes in spinal cord tissue of group A; Conclusion The results suggested that the rat model established by this method with high quality of stability and reliability which suitable to evaluate the spinal cord injury research.

Key words:  wedge-shaped spinal cord hemisection, model, rats

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