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在有或没有COPD的吸烟者中,血液中的乙氨基酸和小呼吸道乙氨基酸之间的关联

Tomoki Maetani¹, Naoya Tanabe¹, Atsuyasu Sato¹

¹Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan.

ERJ open research

|October 23, 2023

概括

血中乙氨基酸细胞的数量可能表明吸烟者,包括COPD患者的小呼吸道炎症. 这一发现有助于澄清这种人群中血液中乙氨基基和呼吸道乙氨基性炎症之间的联系.

科学领域:

肺部病理学肺部病理学
病理学病理学病理学
免疫学免疫学免疫学

背景情况:

在一些COPD患者和高风险吸烟者中观察到气道异性炎症.
血中乙酸细胞计数对于定义乙酸性COPD及其与呼吸道炎症的相关性是有争议的.

研究的目的:

调查COPD和没有COPD的吸烟者血液中异氨基细胞数量和气道异氨基细胞炎症之间的关联.
确定影响这种关联的潜在混因素.

主要方法:

从吸烟者 (有/没有COPD) 和从不吸烟者的肺组织样本进行了组织学分析.
通过主要基本蛋白质 (MBP) 染色量化,量化了小气道中的埃索诺菲尔透.
血中乙氨基细胞的数量与气道MBP阳性细胞相关,调整为混因素.

主要成果:

与从未吸烟者相比,吸烟者表现出更高的气道MBP阳性细胞.
在有或没有COPD的吸烟者中,在血液中乙氨基基基细胞数和气道MBP阳性细胞之间发现了显著的积极关联.
较高的血中乙氨基酸细胞计数与增加的呼吸道乙氨基酸细胞炎症有关,这与吸烟状态,并发症或吸入性皮质类固醇使用无关.

结论:

血中异氨基酸细胞数似乎是吸烟者的小气道异氨基酸性炎症的可靠指标,不管COPD状态如何.
这一发现支持在吸烟者中使用血中氨基基基水平来控制氨基基基的呼吸道疾病.

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