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诱导唾液中的超细颗粒作为肺炎和功能状态的生物标志物:一个横截面研究
1Clalit Medical Services, Tel Aviv District, Tel Aviv, Israel 2 Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
The Israel Medical Association journal : IMAJ
|August 16, 2023
概括
唾液中的超细颗粒 (UFP) 可能作为肺炎的生物标志物. 混合颗粒细胞性炎症 (MGI) 呈现出明显的UFP特征,可能表明eosinophilic和neutrophilic炎症之间的相互作用,并与肺功能减弱有关.
科学领域:
- 环境健康 环境健康
- 肺部病理学 肺部病理学
- 生物标志物发现发现
背景情况:
- 暴露于环境颗粒物 (PM),特别是超细颗粒 (UFPs < 100 nm),与增加呼吸道和心血管疾病相关.
- 吸入颗粒的环境监测是评估人类PM暴露的主要方法.
研究的目的:
- 评估测量UFPs直接在诱导 (IS) 中作为肺炎和功能障碍的生物标志物的实用性.
- 为了研究UFP的形状,与唾液中的不同炎症表型有关.
主要方法:
- 121名患有呼吸道症状的患者接受了诱导液 (IS) 测试.
- 在IS样本中测量了细胞差异计数和UFP含量.
- 将UFP含量与各种炎症表型进行了比较:eosinophilic (EI),neutrophilic (NI) 和混合颗粒细胞炎症 (MGI),并与肺功能测试 (PFT) 相关联.
主要成果:
- 患有MGI的患者表现出明显的IS-UFP概况,与EI,NI或正常对照相比,UFP百分比最高.
- 在MGI患者的IS-UFP档案中观察到EI和NI之间的相互作用效应.
- 减少的PFT参数 (FEF25-75,FEV1) 与特定的IS-UFP特征相关 (更高的平均尺寸,更低的度/百分比).
结论:
- 这项研究是首次报告MGI中独特的IS-UFP概况,表明它是一种独特的炎症表型.
- IS-UFP概况与肺功能障碍相关,表明作为生物标志物的潜力.
- 需要进一步的研究来确定IS-UFP含量与肺炎/损伤之间的因果关系.
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