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活性氧物种是否会损害或保护心脏在缺血和再输血时? 对实验和临床数据的分析
Leonid N Maslov1, Natalia V Naryzhnaya1, Maria Sirotina1
1Cardiology Research Institute, Tomsk National Research Medical Center, the Russian Academy of Sciences, Tomsk, Tomsk Region 634012, Russia.
Journal of biomedical research
|July 28, 2023
概括
反应性氧物种 (ROS) 在心脏缺血-再输液损伤中起着保护作用,这与之前的看法相反. 有证据表明,ROS可能会保护心脏,挑战抗氧化剂的有效性,仅针对自由基.
科学领域:
- 心血管研究研究心血管研究
- 氧化压力生物学 氧化压力生物学
背景情况:
- 反应性氧物种 (ROS) 在心脏缺血-再输液 (I/R) 损伤中的作用受到争议.
- 重灌显著增加了心脏中自由基的产生.
- 抗氧化剂显示出缓解心脏I/R损伤的潜力.
研究的目的:
- 研究I/R损伤中抗氧化剂心脏保护的真正机制.
- 为了确定抗氧化作用是否仅仅依赖于降低ROS水平.
- 探索ROS在心脏I/R中的潜在保护作用.
主要方法:
- 对ROS和心脏I / R.R.现有文献的审查.
- 分析涉及抗氧化剂和N-2-mercaptopropionyl glycine的实验数据.
- 对NADPH氧化酶淘汰研究结果的检查.
主要成果:
- 抗氧化剂在I/R损伤中的有效性可能涉及超出自由基清除的相互作用.
- 高剂量的抗氧化剂表明了多方面的作用机制.
- 缺血预调的心脏保护作用被特定的抗氧化剂或NADPH氧化酶淘汰消除.
结论:
- 反应性氧物种 (ROS) 可能积极保护心脏免受I/R损伤.
- ROS的保护作用挑战了心脏I / R中抗氧化剂的传统观点.
- 需要进一步的研究来阐明ROS和心脏保护之间的复杂相互作用.
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