60分钟后氧化应激反应动力学在不同 (1.4ATA和2.5ATA) 的高压氧化暴露下
Clément Leveque1,2, Simona Mrakic Sposta3, Sigrid Theunissen1
1Environmental, Occupational, Aging (Integrative) Physiology Laboratory, Haute Ecole Bruxelles-Brabant (HE2B), 1160 Brussels, Belgium.
International journal of molecular sciences
|August 12, 2023
概括
高压氧疗法 (HBOT) 在轻度和高压下同样增加活性氧物种 (ROS) 和抗氧化剂反应. 然而,炎症反应与高压氧剂量成比例增加.
科学领域:
- 身体生理学 身体生理学
- 生物化学 生物化学
- 治疗方法 治疗方法
背景情况:
- 高压氧疗法 (HBOT) 涉及在增加的大气压力下呼吸纯氧.
- 在不同HBOT压力下产生活性氧物种 (ROS) 的精确动力学尚不清楚.
- 了解这些反应对于优化HBOT治疗潜力至关重要.
研究的目的:
- 为了研究1.4和2.5绝对大气 (ATA) 的HBOT的代谢和炎症反应.
- 评估高压氧化过氧对氧化应激和抗氧化能力的剂量依赖性影响.
- 评估HBOT对炎症标志物的影响.
主要方法:
- 14名健康受试者接受了1小时的1.4 ATA和2.5 ATA的高压氧化反应.
- 血液样本在暴露前收集,并在暴露后的30分钟,2,24小时和48小时收集.
- 试验包括ROS产量,氧化代谢物 (NOx),异质,超氧化解突变酶 (SOD),催化酶 (CAT),谷氨 (GSH),介素-6,新素和肌素.
主要成果:
- 1.4 ATA 和 2.5 ATA HBOT 两种疗法都显著增加了 ROS 生产和抗氧化反应 (SOD,CAT,GSH).
- 这些氧化和抗氧化反应在两种压力水平上都相似.
- 炎症标志物 (互白素-6,新素) 和免疫调节与HBOT压力 (剂量) 相比例地增加.
结论:
- 在轻度和高压下短期的HBOT会引起类似的氧化应激和抗氧化防御的增加.
- HBOT的炎症和免疫调节作用是剂量依赖的.
- 需要进一步的研究来确定最佳的HBOT剂量和恢复时间,以获得治疗效益.
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