交感神经病理在肌肉中暴露,肌肉受益于肌缩性侧面硬化症
Antonio Mazzaro1,2, Veronica Vita1,2, Marco Ronfini2,3
1Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padua, Padua, Italy.
Frontiers in physiology
|May 30, 2023
概括
肌缩性侧面硬化症 (ALS) 损害肌肉中的交感神经元,影响血管和肌肉纤维. 这项研究开发了一种新方案,以揭示ALS患者和小鼠模型中此前被低估的同情性缩.
科学领域:
- 神经科学是一个神经科学.
- 骨肌肉生理学 骨肌肉生理学
- 自主神经系统研究 自主神经系统研究
背景情况:
- 由于分析小神经纤维的技术限制,对肌肉交感内置的了解很少.
- 肌缩侧面硬化症 (ALS) 主要影响运动神经元,但自主功能障碍是常见的,同情神经元 (SN) 经常被认为是被省略和研究不足的.
研究的目的:
- 用结构分析来比较正常与ALS受影响的肌肉中的交感内置.
- 为了研究同情神经元在ALS病理学中的作用.
主要方法:
- 开发和优化了该公司的产品.
- 神经检测协议 神经检测协议
- (NDP) 用于加强对肌肉交感内置的病原学分析.
- 在人体肌肉活检中验证了NDP,以确认血管和肌纤维的高密度SN内化.
- 应用NDP分析SOD1G93A小鼠模型和人类ALS患者的肌肉活检中的同情性内置.
主要成果:
- 不管纤维类型,SNs都密集地化骨肌纤维和血管.
- 鼠类ALS模型表现出显著的SN缩,从疾病的早期开始,随着年龄的增长而恶化.
- 在具有SOD1G93A突变的人类ALS患者肌肉活检中观察到类似的SN退化.
结论:
- 该NDP协议有效地分析了人类和小鼠肌肉的交感内置.
- 交感神经元在ALS中受到损害,这表明它们在这种疾病中并没有幸免.
- 功能障碍的SOD1G93A肌肉会对它们自身的交感内产生负面影响.
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