阻塞性睡眠呼吸暂停引起的高血压与肠道增加和神经炎症有关
Sriram Ayyaswamy1, Huanan Shi1, Bojun Zhang2
1Department of Integrative Physiology Baylor College of Medicine Houston TX USA.
Journal of the American Heart Association
|June 1, 2023
概括
阻塞性睡眠呼吸暂停 (OSA) 导致肠道炎症和免疫细胞变化,导致神经炎症和高血压. 中和介素-17a降低了OSA大鼠的血压和炎症.
科学领域:
- 免疫学 免疫学 免疫学
- 胃肠病学 胃肠病学
- 心血管科学 心血管科学
背景情况:
- 阻塞性睡眠呼吸暂停 (OSA) 是高血压的已知危险因素.
- OSA与肠道失调有关,这会导致血压升高.
- 连接肠道失调与高血压的确切机制尚未完全理解.
研究的目的:
- 调查OSA诱导的肠道炎症导致神经炎症和高血压的假设.
- 探索特定免疫细胞和信号通路在这个过程中的作用.
主要方法:
- 阻塞性睡眠呼吸暂停 (OSA) 在雄性大鼠中被诱导.
- 在各种组织 (大动脉,大脑,肠道,淋巴细胞器官) 中使用流细胞计分析了淋巴细胞群.
- 评估了中和互白素-17a (IL-17a) 对免疫细胞和血压的影响.
- 追踪肠道衍生淋巴细胞的迁移模式.
主要成果:
- 在OSA大鼠中,肠道和大脑中的T调节细胞减少,T辅助细胞17 (TH17) 增加.
- 在OSA大鼠中,对IL-17a的中和显著降低了血压,并调节了T细胞种群.
- 在OSA大鼠中,来自肠道的T细胞 (TH1,TH2,TH17) 对大脑的迁移增加.
结论:
- 通过IL-17a信号传递,OSA在肠道和大脑中触发了一种促炎反应.
- 肠道失生症可能会在肠道和大脑中引发炎症.
- 针对肠道失调症可能是减少与OSA相关的神经炎症和高血压的治疗策略.
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