夜间接触人工光会改变内皮功能中的超射线节奏
Journal of vascular research
|August 10, 2025
概括
夜间的人工光 (ALAN) 扰乱了小鼠的超日节律,影响了血管放松. 这些对生理学至关重要的生物节奏被ALAN暴露所废除,突出了其有害的健康影响.
科学领域:
- 时间生物学 时间生物学
- 生理学 生理学 生理学
- 心血管研究研究心血管研究
背景情况:
- 循环时钟调节生理和行为,与光同步.
- 夜间的人工光 (ALAN) 破坏这些生物节奏,影响健康.
- 超日节律比昼夜节律更频繁,但人们对其理解较少.
研究的目的:
- 研究长期ALAN暴露对心血管功能的影响.
- 在隔离的大动脉组织中识别和描述超射频节律.
- 为了确定ALAN暴露是否会影响这些超日节律.
主要方法:
- 在受控光照条件下研究了分离的小鼠大动脉组织.
- 测量了内皮依赖放松以评估血管功能.
- 小鼠被暴露在黑暗的夜晚或夜晚有人工光 (ALAN).
主要成果:
- 在黑夜的小鼠中检测到在肌肉蛋白受体依赖的大动脉放松中的超日节律.
- 这些超射线图案显示出雄性和雌性小鼠之间的反相关系.
- 艾伦暴露消除了两性中超射线节律模式.
结论:
- 暴露于ALAN可以显著扰乱生理超日节律.
- 这种干扰会影响内皮细胞依赖的血管功能.
- 艾伦对生物定时和心血管健康构成潜在威胁.
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