结合黑激素和明亮的光疗法减轻中枢神经系统氧气毒性后,白天到晚上的过渡
Mirit Eynan1, Rica-Rina Rabinovich1, Yehuda M Danino1,2
1Israel Naval Medical Institute, IDF Medical Corps, Haifa, Israel.
Chronobiology international
|February 9, 2026
概括
夜间活动增加了潜水员中致命的中枢神经系统氧毒性 (CNS-OT) 的风险. 联合光和黑激素疗法可以通过减少夜间沙鼠的海马特异性标记物来保护中枢神经系统-OT.
科学领域:
- 海洋生物学 海洋生物学
- 神经科学是一个神经科学.
- 潜水生理学 潜水生理学
背景情况:
- 闭环氧气复制器 (CCR) 潜水带有致命的中枢神经系统氧毒性 (CNS-OT) 的风险.
- 室内住房引起的夜间活动模式,加剧了白天脂肪沙鼠 (Psammomys obesus) 中枢神经关节的风险.
研究的目的:
- 为了评估在沙鼠转向夜间活动中对中枢神经系统-OT的保护策略.
- 调查光疗和黑激素对中枢神经关节阻力和相关生物标志物的影响.
主要方法:
- 建立了五组沙鼠:一个白天 (室外) 和四个夜间 (室内) 组,接受了不同的治疗 (对照,光,黑激素,联合光+黑激素).
- 动物经历了3周的住房,随后进行了尿液6 - 硫胺 (6-SMT) 水平评估.
- 随后的高压氧 (HBO) 暴露测量了对中枢神经系统-OT的延迟,并分析了海马的nNOS和尼托氨酸 (NT) 水平.
主要成果:
- 与日间活动相比,室内住房和夜间活动显著缩短了中枢神经系统-关节的延迟时间.
- 结合光和黑激素治疗延长了中枢神经关节的延迟时间,达到与白天活动的老鼠相似的水平.
- 这种保护作用与结合治疗组中海马内nNOS和NT水平显著降低相关.
结论:
- 夜间活动增加了对中枢神经系统-OT的敏感性.
- 结合明亮光疗法和黑激素治疗,在夜间活动的沙鼠中提供了对中枢神经系统的保护.
- 降低海马的nNOS和NT水平可能会调解这种保护作用,这表明对中枢神经系统-关节的潜在治疗策略.
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