中国组织工程研究

中国组织工程研究 ›› 2011, Vol. 15 ›› Issue (15): 2699-2702.doi: 10.3969/j.issn.1673-8225.2011.15.010

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

经皮纤维环穿刺法建立兔椎间盘退行性变动物模型

万中元1, 2，李  放2，李进珍2, 3，任大江2   

  1. 1解放军第四军医大学，陕西省西安市 710032
    2解放军北京军区总医院全军骨科中心，北京市100700
    3山西医科大学，山西省太原市  030001
  • 收稿日期:2011-01-13 修回日期:2011-03-04 出版日期:2011-04-09 发布日期:2013-11-06
  • 通讯作者: 李放，教授，硕士生导师，解放军北京军区总医院全军骨科中心，北京市100700 FANGL6722@ sina.com
  • 作者简介:万中元★，男，1983年生，内蒙古和林格尔县人，满族，解放军第四军医大学在读硕士，医师，主要从事椎间盘退变组织工程修复研究。 wanzhongyuan@yeah.net

Establishment of rabbit intervertebral disc degeneration models using percutaneous annulus fibrosus puncture

Wan Zhong-yuan1, 2, Li Fang2, Li Jin-zhen2, 3, Ren Da-jiang2   

  1. 1Fourth Military Medical University of Chinese PLA, Xi’an  710032, Shaanxi Province, China
    2Orthopaedic Research Institute, General Hospital of Beijing Military Area Command of Chinese PLA, Beijing  100700, China
    3Shanxi Medical University, Taiyuan  030001, Shanxi Province, China
  • Received:2011-01-13 Revised:2011-03-04 Online:2011-04-09 Published:2013-11-06
  • Contact: Li Fang, Professor, Master’s supervisor, Orthopaedic Research Institute, General Hospital of Beijing Military Area Command of Chinese PLA, Beijing 100700, China FANGL6722@sina. com
  • About author:Wan Zhong-yuan★, Studying for master’s degree, Physician, Fourth Military Medical University of Chinese PLA, Xi’an 710032, Shaanxi Province, China; Orthopaedic Research Institute, General Hospital of Beijing Military Area Command of Chinese PLA, Beijing 100700, China wanzhongyuan@ yeah.net

PDF

447

被引次数

5

摘要：

背景：合适的椎间盘退变动物模型是椎间盘组织工程研究的必要条件，但目前尚缺乏公认的模型制备方法。
目的：采用C形臂辅助下经皮纤维环穿刺法制备兔椎间盘退变动物模型，并评估其可行性。
方法：选定新西兰大白兔L2/3和L3/4椎间盘作为穿刺干预椎间盘，L1/2和L5/6椎间盘作为空白对照组，采用C形臂辅助下经皮穿刺法干预椎间盘。于术后2，4，8，12周各选择2只兔麻醉后拍摄兔腰椎核磁共振影像，处死动物采集椎间盘，进行椎间盘髓核蛋白多糖测定。核磁共振检查观察椎间盘退行性改变，二甲基亚甲蓝染色分光光度法测定髓核中蛋白多糖含量变化。
结果与结论：术后4周穿刺干预椎间盘髓核区域核磁共振信号强度及髓核内蛋白多糖含量同空白对照组相比均下降(P < 0.05)，其后两者呈现逐渐下降趋势。结果证实，C形臂X射线机辅助下经皮纤维环穿刺法可用于椎间盘退变动物模型的制备。

关键词: 经皮纤维环穿刺, 椎间盘退变, 动物模型, 兔, 骨组织工程

Abstract:

BACKGROUND: Although an advisable experimental animal model is necessary for the intervertebral disc tissue engineering, currently, there is not an accepted experimental animal models preparation method.
OBJECTIVE: To detect the feasibility of the establishment of the rabbit intervertebral disc degeneration animal model by means of C-arm-assisted percutaneous annulus fibrosus puncture.
METHODS: L2/3 and L3/4 disc of New Zealand white rabbit were selected as puncture intervention discs, the L1/2, L5/6 disc were selected as blank control, the intervention group discs were treated by percutaneous annulus fibrosus puncture with the aids of C-arm. Two rabbits were anesthetized at 2, 4, 8, and 12 weeks respectively after operation for MRI images. Then the animals were killed, the change of lumbar intervertebral discs was observed by MRI, and nucleus proteoglycan contents were measured by dimethylmethyleneblue (DMMB) dye spectrophotometry.
RESULTS AND CONCLUSION: Signal intensity and proteoglycan content of the nucleus pulposus of the intervention group showed a progressive downtrend at 4 weeks after intervention (P < 0.05), but, by contrast, signal intensity and proteoglycan content of the nucleus pulposus in the control group were gradually decreased. C-arm-assisted percutaneous annulus fibrosus puncture is a feasible method in intervertebral disc degeneration animal model preparation.

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