使用同步辐射X射线微计算机断层扫描进行肌肉结构评估,用于患有脑缺血的小鼠
Subok Kim1, Sanghun Jang2, Onseok Lee3,4
1Department of Software Convergence, Graduate School, Soonchunhyang University, 22, Soonchunhyang-ro, 31538, Asan City, Chungnam, Republic of Korea.
Scientific reports
|November 5, 2024
概括
脑卒中会导致肌肉损伤,影响平衡和行走. 这项研究使用了X射线微型CT来评估脑卒中后鼠的肌肉变化,揭示了显著的肌肉纤维损伤和结构变化.
科学领域:
- 生物医学工程 生物医学工程
- 神经科学是一个神经科学.
- 肌肉生理学 肌肉生理学
背景情况:
- 下肢肌肉对于平衡和行走至关重要.
- 脑卒中可以诱导肌肉缩和,使恢复复杂化.
- 在中风后量化早期肌肉损伤仍然是一个挑战.
研究的目的:
- 为了评估缺血性中风引起的肌肌肉损伤在 gerbils.
- 为了比较中风后7天和14天的肌肉结构变化.
- 评估同步辐射X射线微型计算机断层扫描 (SR-μCT) 对肌肉损伤评估的实用性.
主要方法:
- 犬经历了缺血性中风,分析了 (左) 和非 (右) 肌肉.
- 在高分辨率成像中采用了同步辐射X射线微型计算机断层扫描 (SR-μCT).
- 单体肌肉被细分为量化细胞外空间/矩阵和纤维区域,计算肌肉纤维与细胞外空间/矩阵的比率.
主要成果:
- 与对照人群相比,在中风后14天的麻的左侧肌肉中观察到显著的肌肉纤维对细胞外空间/矩阵比率损伤.
- 14天后,左侧和右侧的肌肉面积显著不同.
- 关键的束膜参数 (表面积,厚度,笔纹角) 在14天后,与对照人群相比,的肌肉呈现出显著差异.
结论:
- SR-μCT是评估中风后详细肌肉结构变化的宝贵工具.
- 脑卒中引起的会导致肌肉构成和结构的显著变化.
- 这些发现支持使用动物模型通过监测肌肉恢复来改善中枢神经系统康复策略.
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