相关实验视频
Updated: May 11, 2026
08:03
An In Vitro Organ Culture Model of the Murine Intervertebral Disc
Published on: April 11, 2017
10.2K
鼠和大鼠的慢性宫不稳定:一个可重复的模型来模拟人类椎间盘退化
Kewu Tu1, Junhao Tan2, Guanhai Zeng3
1Department of Spinal Surgery, Shaoguan First People's Hospital, Affiliated Hospital of Shaoguan University, Shaoguan, Guangdong, China.
PeerJ
|December 15, 2025
概括
一种新的宫不稳定的小鼠模型有效地复制了慢性椎间盘退化 (IVDD),显示了渐进的变化,并为IVDD研究提供了一个平台.
科学领域:
- 生物医学工程 生物医学工程
- 整形外科 整形外科 整形外科
- 再生医学是一种再生医学.
背景情况:
- 慢性腰部疼痛是与椎间盘退化 (IVDD) 相关的全球主要残疾.
- 现有的动物模型很难模仿人类IVDD的慢性,渐进性质.
研究的目的:
- 开发一个新的小鼠模型的椎脊椎不稳定.
- 为了准确地复制人类看到的渐进性椎间盘退化 (IVDD).
主要方法:
- 在老鼠和小鼠中,通过双边宫膜切除和脊椎过程切除诱导慢性脊椎间的不稳定.
- 在手术后4,8和12周使用MRI,组织学 (H&E,Safranin O),免疫光和西斑的纵向评估.
主要成果:
- 核磁共振扫描显示了宫水平C4/5,C5/6,C6/7的渐进性退化,在4-8周达到顶峰.
- 组织学证实了细胞损失,蛋白质甘氨酸枯竭和结构失调.
- 生物化学分析显示原II/aggrecan减少,原I增加,氧化应激升高,矩阵金属蛋白酶,衰老和炎症标志物.
结论:
- 开发的宫不稳定模型准确地模仿了人类IVDD的进展.
- 这种模型最大限度地减少了神经损伤和动物的压力,提供了一个可复制的平台.
- 它适用于研究IVDD的发病性和评估治疗干预措施.
相关概念视频
01:27Degenerative Disc Disease I: Introduction
Degenerative disc disease is a chronic condition in which intervertebral discs gradually lose structure and function. It is not infectious or autoimmune; rather, it results from age-related biochemical and mechanical changes, influenced by genetic, metabolic, and environmental factors.Structure and Function of DiscsThe spine contains 23 intervertebral discs that absorb load, distribute forces, maintain spacing, and allow flexibility. Each disc consists of a nucleus pulposus, a gel-like core...
01:23Degenerative Disc Disease ll: Pathophysiology
The symptoms of degenerative disc disease arise from a combination of mechanical compression, vascular compromise, and biochemical inflammation, which together disrupt nerve function and produce pain.Mechanical CompressionDisc degeneration reduces height and elasticity, predisposing to herniation of the nucleus pulposus, a major cause of radicular pain. Herniations may be protrusion (bulging with intact annulus), extrusion (nucleus extends beyond disc but remains connected), or sequestration...