对于患有COPD,喘和ACO的患者,neopterin:与内皮和肺功能相关
Yangli Liu1, Fengjia Chen1, Zhimin Zeng1
1Division of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Sun Yat-sen University, Province Guangdong, Guangzhou, 510080, PR China.
Respiratory research
|April 18, 2024
概括
新素 (NP) 与慢性呼吸道疾病 (如COPD和喘) 中的内皮功能障碍和肺功能降低有关. 高水平的NP可能会在低氧条件下通过氧化应激恶化内皮功能障碍.
科学领域:
- 肺部医学 肺部医学
- 心血管医学 心血管医学
- 生物化学 生物化学
背景情况:
- 内皮功能障碍在COPD和喘中很常见,但在喘-COPD重叠 (ACO) 中没有研究过.
- 素三酸盐代谢物Neopterin (NP) 是一种潜在的心血管风险生物标志物.
- 研究NP在COPD,喘和ACO中的内皮功能障碍和肺功能中的作用至关重要.
研究的目的:
- 为了检查Neopterin (NP) 水平与内皮功能障碍之间的关联.
- 评估NP与COPD,喘和ACO患者肺功能受损之间的关系.
- 在低氧条件下探索NP对内皮细胞的体外影响.
主要方法:
- 预计招募77名受试者,包括健康对照组和患有COPD,喘和ACO的患者.
- 评估肺功能 (FEV1),内皮功能 (PWV,口),以及血NP水平.
- 在低氧环境中对NP对内皮细胞 (EC) 的影响进行体外评估,测量活性氧物种 (ROS) 和线粒体膜潜力 (ΔΨm).
主要成果:
- 与对照组相比,COPD和ACO患者的内皮功能明显受损.
- FEV1与PWV呈负相关性,与口炎呈正相关性.
- 在所有慢性呼吸道疾病组中,NP水平升高,COPD最高,其次是喘,然后是ACO.
- 血NP水平与FEV1负相关,与PWV正相关.
- 在体外,高NP水平剂量依赖于增加ROS和降低ΔΨm在低氧下EC.
结论:
- 新素 (NP) 与慢性呼吸道疾病的严重程度有关,并导致内皮功能障碍.
- 升高的NP水平可能会通过降氧时EC中氧化应激增加促进内皮功能障碍.
- 在慢性呼吸道疾病中,NP为内皮功能障碍提供了一个潜在的新生物标志物和治疗点.
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