中国组织工程研究 ›› 2019, Vol. 23 ›› Issue (7): 1073-1077.doi: 10.3969/j.issn.2095-4344.1058

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

构建不同脊髓损伤节段模型大鼠下肢功能恢复的评价

魏卫兵1,周祥兴1,周宾宾2,李奕军1,邹旨龙1,杨  辉1   

  1. (1广西中医药大学,广西壮族自治区南宁市  530001;2广西中医药大学第一附属医院,广西壮族自治区南宁市  530001)
  • 收稿日期:2018-10-07 出版日期:2019-03-08 发布日期:2019-03-08
  • 通讯作者: 周宾宾,教授,主任医师,广西中医药大学第一附属医院,广西壮族自治区南宁市 530001
  • 作者简介:魏卫兵,男,1989年生,江西省丰城市人,汉族,广西中医药大学在读硕士,主要从事颈椎病的诊治与研究的工作。 并列第一作者:周祥兴,男,1989年生,汉族,广西中医药大学在读硕士,主要从事骨关节损伤与疾病。 并列第一作者:李奕军,男,1990年生,汉族,广西中医药大学在读硕士,主要从事中西医结合脊柱外科诊治。
  • 基金资助:

    国家自然科学基金面上项目(84160746),项目负责人:周宾宾

Evaluation of lower limb function in rat models of spinal cord injury at different segments

Wei Weibing1, Zhou Xiangxing1, Zhou Binbin2, Li Yijun1, Zou Zhilong1, Yang Hui1   

  1. (1Guangxi University of Chinese Medicine, Nanning 530001, Guangxi Zhuang Autonomous Region, China; 2the First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning 530001, Guangxi Zhuang Autonomous Region, China)
  • Received:2018-10-07 Online:2019-03-08 Published:2019-03-08
  • Contact: Zhou Binbin, Professor, Chief physician, the First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning 530001, Guangxi Zhuang Autonomous Region, China
  • About author:Wei Weibing, Master candidate, Guangxi University of Chinese Medicine, Nanning 530001, Guangxi Zhuang Autonomous Region, China Zhou Xiangxing, Master candidate, Guangxi University of Chinese Medicine, Nanning 530001, Guangxi Zhuang Autonomous Region, China Li Yijun, Master candidate, Guangxi University of Chinese Medicine, Nanning 530001, Guangxi Zhuang Autonomous Region, China Wei Weibing, Zhou Xiangxing and Li Yijun contributed equally to this work.
  • Supported by:

    the National Natural Science Foundation of China (General Program), No. 84160746 (to ZBB)

摘要:

文章快速阅读:

文题释义:
钳夹法脊髓损伤模型的建立:暴露椎板直至椎弓根,修整椎板边界并清晰显露硬膜两侧缘,止血满意后持微型血管夹,以其钝性端从硬脊膜与其前方的椎体见穿过至对侧,其后瞬间释放微型血管夹,夹持20 s后松开血管夹,此时可见钳夹处硬脊膜有一明显血肿痕迹,证明造模成功。
脊髓损伤大鼠的应用:实验动物选择的首要原则是其生物学特性是否接近人类。大白鼠具有临床相似度高的特点,同时其成本低,易获取且具备基因被改造的潜能,是目前作为脊髓损伤动物模型最理想的选择。
摘要
背景:
研究脊髓损伤的病理生理、解剖结构等的改变,需要建立一个理想的动物模型,在选好一种损伤方式的同时选择一段安全有效的脊髓同样至关重要。
目的:观察不同脊髓损伤节段对下肢功能恢复情况的影响。
方法:将72只SD大鼠随机等分为6组:T8组、T9组、T10组、T11组、T12组及假手术组。T8组、T9组、T10组、T11组、T12组采用微型血管夹闭法分别夹闭T8,T9,T10,T11,T12脊髓,建立脊髓损伤模型。假手术组仅切除椎板暴露硬脊膜。
结果与结论:①T8组、T9组、T10组、T11组和T12组大鼠随着造模后时间的延长,爬网格实验踏空次数减少;②与假手术组相比,T8组、T9组、T10组、T11组和T12组大鼠的BBB评分明显降低。在损伤后第2-4周时,T9组、T10组和T11组大鼠的BBB评分高于T8组和T12组,且其中T10组大鼠的BBB评分高于T9组和T11组;③提示T10是脊髓损伤后下肢功能恢复最好的节段。

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
ORCID: 0000-0002-9109-9928(魏卫兵)

关键词: 脊髓损伤, 大鼠, 损伤节段, 下肢功能, BBB评分, 爬网格实验, 组织构建, 动物模型

Abstract:

BACKGROUND: An ideal animal model is essential for studies on the pathophysiologic and anatomical structures. Therefore, selecting injury method and a safe and effective segment of spinal cord is critical.
OBJECTIVE: To explore the effects of different spinal cord injury segments on the recovery of lower extremity function.
METHODS: Rat models of spinal cord injury at different segments were established. Seventy-two Sprague-Dawley rats were randomly divided into six groups: T8, T9, T10, T11, T12 and sham operation (laminectomy and spinal meninge exposure) groups. The rats in the T8, T9, T10, T11, T12 groups were used for establishing rat models of spinal cord injury by clipping the corresponding spinal cord segments using a microvessel clamp.
RESULTS AND CONCLUSION: In the climbing grid experiment, the number of rats stepping on the air in each group decreased with time. Compared with the sham operation group, the Basso, Beattie, and Bresnahan scores in each group were significantly decreased. At 2-4 weeks after injury, the Basso, Beattie, and Bresnahan scores in the T9, T10 and T11 groups were higher than those in the T8 and T12 groups, and the scores in the T10 group were higher than those in the T9 and T11 groups. In summary, T10 group showed the best recovery of lower limb function after spinal cord injury.

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

Key words: Spinal Cord Injuries, Models, Animal, Tissue Engineering

中图分类号: