中国组织工程研究 ›› 2022, Vol. 26 ›› Issue (35): 5652-5657.doi: 10.12307/2022.942

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

X射线引导建立大鼠椎间盘退变模型

黄  帆1,邸安琪2,丘明旺1,黄楚渝1,李晓惠1,赵思怡1,范志勇1,吴  山1   

  1. 1广州中医药大学第二临床医学院,广东省广州市  510405;2广州中医药大学第一临床医学院,广东省广州市  510405
  • 收稿日期:2021-12-28 接受日期:2022-02-16 出版日期:2022-12-18 发布日期:2022-05-17
  • 通讯作者: 范志勇,副主任医师,硕士生导师,广州中医药大学第二临床医学院,广东省广州市 510405 吴山,博士,主任医师,博士生导师,博士后合作导师,广州中医药大学第二临床医学院,广东省广州市 510405
  • 作者简介:黄帆,男,1997年生,广东省揭阳市人,汉族,广州中医药大学第二临床医学院在读硕士,主要从事岭南林氏正骨推拿的临床和研究工作。
  • 基金资助:
    国家自然科学基金(81874511),项目负责人:吴山;2019年国家级大学生创新创业训练项目(2019105720014),项目负责人:赵思怡

Establishing a rat model of intervertebral disc degeneration using X-ray guidance

Huang Fan1, Di Anqi2, Qiu Mingwang1, Huang Chuyu1, Li Xiaohui1, Zhao Siyi1, Fan Zhiyong1, Wu Shan1   

  1. 1The Second Clinical College, Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong Province, China; 2The First Clinical College, Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong Province, China
  • Received:2021-12-28 Accepted:2022-02-16 Online:2022-12-18 Published:2022-05-17
  • Contact: Fan Zhiyong, Associate chief physician, Master’s supervisor, The Second Clinical College, Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong Province, China Wu Shan, MD, Chief physician, Doctoral supervisor, The Second Clinical College, Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong Province, China
  • About author:Huang Fan, Master candidate, The Second Clinical College, Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong Province, China
  • Supported by:
    the National Natural Science Foundation of China, No. 81874511 (to WS); 2019 National Innovation and Entrepreneurship Training Program for College Students, No. 2019105720014 (to ZSY)

摘要:

文题释义:
椎间盘退变:是指由于年龄增长,椎间盘失去水分和出现纤维性变而变形,加之椎间盘自身可能缺乏血供或劳损不稳定,发生退行性变。
X射线:是一种频率极高、波长极短、能量很大的电磁波,频率范围30 PHz-300 EHz,其具有穿透性,但人体组织间有密度和厚度的差异,当X射线透过人体不同组织时被吸收的程度不同,经过显像处理后即可得到不同的影像。

背景:目前国内外对于椎间盘退变的造模方法较多,但存在定位不精准问题。
目的:对比X射线引导下与非X射线引导下建立大鼠椎间盘退变模型的效果。
方法:取9只成年SD大鼠,按照随机数字表法分3组,每组3只,空白组不进行任何操作;对照组手动定位尾椎Co6/7椎间盘,用注射器针头进行垂直穿刺,并均匀缓慢注入无水乙醇,建立椎间盘退变模型;实验组在X射线辅助下定位尾椎Co6/7椎间盘,用注射器针头进行垂直穿刺,并均匀缓慢注入无水乙醇,建立椎间盘退变模型。术后 1周,分别进行 MRI及苏木精-伊红染色观察。
结果与结论:①MRI检查:空白组大鼠Co6/7椎间盘髓核呈高信号,纤维环、终板呈低信号,两者界限清晰;对照组大鼠Co6/7椎间盘髓核信号降低,可见约一半髓核高信号椎间盘;实验组大鼠Co6/7椎间盘髓核信号完全消失;②苏木精-伊红染色:空白组椎间盘髓核完整,可见大量脊索细胞,纤维环排列有序,与髓核分界清晰;对照组髓核完整,可见较多脊索细胞,部分纤维环破裂;实验组髓核破裂,可见稀少脊索细胞,纤维环出现明显分层裂隙;③结果提示:在X射线引导下穿刺大鼠椎间盘可成功建立大鼠椎间盘退变模型,该操作精准方便、模型退变明显,可作为研究椎间盘退变模型的参考。

https://orcid.org/0000-0002-9195-7718 (黄帆)

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

关键词: X射线, 大鼠, 椎间盘退变, 动物模型, 穿刺

Abstract: BACKGROUND: Currently, there are many modeling methods for intervertebral disc degeneration; however, inaccurate positioning is still a problem.
OBJECTIVE: To compare the degree of degeneration of rat disc models by X-ray guided puncture and non-X-ray guided puncture.  
METHODS: Nine Sprague-Dawley rats were randomly divided into three groups (n=3 per group): experimental group, control group and blank group. The blank group did not receive any operations. In the control group, the caudal vertebrae Co6/7 were manually positioned and punctured vertically with a syringe needle. Anhydrous ethanol was uniformly and slowly injected via the syringe needle to establish the intervertebral disc degeneration model. In the experimental group, the X-rays were used to locate the caudal vertebrae Co6 /7 that were then punctured vertically with a syringe needle, and anhydrous ethanol was uniformly and slowly injected to establish the intervertebral disc degeneration model. MRI and hematoxylin-eosin staining were conducted at 1 week after operation.  
RESULTS AND CONCLUSION: MRI detection: In the blank group, the Co6/7 intervertebral disc nucleus pulposus showed high signal intensity, while the annulus fibrosus and endplate showed low signal intensity, with a distinct boundary between them. In the control group, the Co6/7 intervertebral disc nucleus pulposus showed decreased signal intensity, and about half of the intervertebral discs with the high signal in the nucleus pulposus were seen. In the experimental group, the signal of the nucleus pulposus of the Co6/7 intervertebral disc of the rats disappeared completely. Hematoxylin-eosin staining: The nucleus pulposus of the intervertebral disc in the blank group was intact, there were a large number of notochord cells, and the annulus fibrosus was arranged in an orderly manner and had a clear boundary with the nucleus pulposus. In the control group, the nucleus pulposus was intact, many notochord cells were seen, and part of the annulus fibrosus was ruptured. In the experimental group, the nucleus pulposus was ruptured, few notochord cells were observed, and there were obvious stratified fissures in the annulus fibrosus. To conclude, X-ray guided puncture of the rat intervertebral disc could successfully establish a rat model of intervertebral disc degeneration. The model had obvious degeneration, and the operation was accurate and convenient, which can be used as a reference for the study of intervertebral disc degeneration model. 

Key words: X-ray, rat, intervertebral disc degeneration, animal model, puncture

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