在一项随机试验中,抗氧化剂尾酒对60天俯卧床休息引起的眼科变化的影响
Marc Kermorgant1, Fanny Varenne2, Anne Pavy-Le Traon3
1UMR INSERM U1297, Institute of Cardiovascular and Metabolic Diseases (I2MC), 31432 Toulouse, France.
Life (Basel, Switzerland)
|January 8, 2025
概括
宇航员可能会在太空中经历神经眼科变化. 这项研究发现,头向下的床上休息增加了视神经外直径,表明潜在的内压力变化,抗氧化剂的影响最小.
科学领域:
- 太空医学 太空医学
- 眼科医生 眼科 眼科
- 神经科学是一个神经科学.
背景情况:
- 长时间暴露在微重力中可能会导致神经眼科变化.
- 这些变化背后的确切机制尚未完全理解.
- 目前正在探索对策,以减轻微重力的不良影响.
研究的目的:
- 为了评估60天头下卧床休息 (HDBR) 的神经眼科影响.
- 调查抗氧化尾酒作为对抗HDBR诱导变化的对策的有效性.
主要方法:
- 20名健康的男性接受了60天的HDBR,分为对照组和抗氧化剂组.
- 眼科评估包括光谱域光学连贯性断层扫描 (SD-OCT) 以检测视网膜厚度.
- 测量了视神经外直径 (ONSD) 和眼内压力 (IOP).
主要成果:
- 中央视网膜厚度 (CRT) 在HDBR后呈现下降趋势.
- 视神经外直径 (ONSD) 在HDBR后显著增加.
- 眼内压力 (IOP) 倾向于下降,而抗氧化尾酒的效果有限.
结论:
- 60天的HDBR诱导了显著的神经眼科变化,特别是增加了ONSD.
- 抗氧化剂补充表明对这些变化的保护作用很小.
- 需要进一步的研究来理解和抵消太空飞行引起的视力障碍.
关键词:
作为对策,采取了反制措施.头向下的床上休息器眼内压力 眼内压力在微重力环境中,微重力视神经外直径的视神经外.光学连贯性断层扫描 (optical coherence tomography) 是一种光学连贯性断层扫描技术.更多相关视频
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