神经血管分离与缺血中风后缺血核心以外区域的微循环功能障碍有关
Christian Staehr1,2, John T Giblin2, Eugenio Gutiérrez-Jiménez3
1Department of Biomedicine Aarhus University Aarhus Denmark.
Journal of the American Heart Association
|May 26, 2023
概括
脑卒中可能导致毛细血管周细胞收缩和流量停滞,导致神经血管合受损. 这种毛细血管功能障碍可能解释了无用的再通道化,并建议用于中风恢复的新治疗点.
科学领域:
- 神经科学是一个神经科学.
- 血管生物学 血管生物学
- 脑卒中研究 脑卒中研究
背景情况:
- 正常的大脑功能依赖于与代谢需求相匹配的血管供应.
- 神经血管合障碍,或无法增加血液流向活跃的大脑区域,可能导致中风后的不良结果,即使成功进行了血管再通道 (无效再通道).
研究的目的:
- 为了研究毛细血管细胞和血液流动动力学在中风后神经血管合受损的作用.
- 为了探索背后的机制,徒劳的重化.
主要方法:
- 在小鼠中,使用光血栓症诱导前部中脑动脉封闭.
- 通过光学连贯断层扫描和激光光斑对比成像来评估大脑输液和神经血管合.
- 毛细血管周细胞收缩和毛细血管血流停滞在周围缺血组织中得到量化.
主要成果:
- 动脉封闭导致了显著的毛细血管血流减少和毛细血管皮质收缩在周边缺血皮质.
- 剩余的透毛细血管表现出增加的流量停滞.
- 神经血管合对胡须刺激的反应在周围缺血性感官皮质中减少.
结论:
- 脑卒中引起的动脉封闭导致毛细血管周细胞收缩和流量停滞.
- 这种毛细血管功能障碍与神经血管脱有关.
- 由于毛细血管功能障碍而导致的神经血管合障碍可能是导致无用的再道化的一个关键机制,突出了潜在的治疗点.
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