睡眠可以调节血液形成并防止动脉样硬化
Cameron S McAlpine1, Máté G Kiss1,2,3, Sara Rattik1
1Center for Systems Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.
Nature
|February 15, 2019
概括
睡眠障碍通过改变免疫细胞的产生增加了心血管疾病的风险. 这项研究揭示了一个神经免疫轴, 连接睡眠, 血细胞形成和动脉样硬化保护.
科学领域:
- 神经科学
- 免疫学
- 心血管科学
背景情况:
- 睡眠对健康至关重要, 睡眠障碍与心血管疾病有关.
- 睡眠与心血管健康的具体细胞和分子机制尚不清楚.
研究的目的:
- 在小鼠模型中研究睡眠如何调节血液形成,并防止动脉样硬化.
- 确定睡眠对心血管的保护作用所涉及的神经免疫通路.
主要方法:
- 在小鼠中诱导睡眠碎片化.
- 测量了特定免疫细胞 (高Ly-6C单细胞),动脉样损伤大小和神经低分泌素水平.
- 用基因修饰和肌蛋白补充来探索因果关系.
主要成果:
- 在小鼠中,睡眠碎片化增加了高Ly-6C单细胞,并加剧了动脉样硬化.
- 在睡眠碎片化的小鼠中观察到低素水平.
- 调节血造细胞中的低分泌素信号或CSF1水平,改善了睡眠分裂对单细胞和动脉样硬化的影响.
结论:
- 通过神经免疫轴,睡眠调节血液形成并保护对动脉样硬化.
- 这一轴将大脑 (低分泌蛋白) 与免疫系统 (单细胞产生) 和心血管健康联系起来.
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