Lower airway disease in asthmatics with and without rhinitis.

Lower airway disease in asthmatics with and without rhinitis.
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DOI:
10.1007/s00408-008-9119-1
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发表时间:
2008-11
期刊:
影响因子:
5
通讯作者:
Irvin CG
Irvin CG
中科院分区:
医学3区
文献类型:
--
作者:
Dixon AE;Raymond DM;Suratt BT;Bourassa LM;Irvin CG

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本研究的目的是确定是否哮喘伴和不伴鼻炎代表不同形式的疾病。前瞻性横断面研究。健康对照组、哮喘不伴鼻炎组和哮喘伴鼻炎组。我们比较了三组参与者的肺功能和气道炎症。我们招募了32名参与者:12名正常人,8名哮喘患者,12名鼻炎患者。与鼻炎哮喘患者相比,无鼻炎哮喘患者的气流受限更严重(FEV 1/FVC 60.6 [IQR 22.8] vs 74.8%[IQR 7.8]),诱导痰嗜酸性粒细胞更少(分别为2.8 [IQR 5.8]和9.6 [IQR 23.8])。在研究队列中,痰液白细胞介素6与使用支气管扩张剂后FEV 1测量的肺功能呈负相关(斯皮尔曼相关系数为-0.55,p<0.01)。没有鼻炎的哮喘患者往往有较低的肺功能和较少的嗜酸性粒细胞炎症。这项研究表明,没有鼻炎的哮喘患者代表了一种独特的哮喘表型,其中低肺功能与嗜酸性细胞炎症无关。
The purpose of this study was to determine if asthma with and without rhinitis represent distinct forms of disease. A prospective cross-sectional study. Healthy controls, participants with asthma without rhinitis, and participants with both asthma and rhinitis We compared lung function and airway inflammation between the three groups of participants. We recruited 32 participants: 12 normals, 8 asthmatics without, and 12 with rhinitis. Compared to asthmatics with rhinitis, asthmatics without rhinitis had more severe airflow limitation (FEV1/FVC 60.6 [IQR 22.8] versus 74.8 % [IQR 7.8] and fewer induced sputum eosinophils (2.8 [IQR 5.8] and 9.6 [IQR 23.8], respectively). Sputum interleukin 6 correlated inversely with lung function measured by post-bronchodilator FEV1 in the study cohort (Spearman correlation coefficient −0.55, p<0.01). Asthmatics without rhinitis tend to have lower lung function and less eosinophilic inflammation in the lung. This study suggests that asthmatics without rhinitis represent a distinct phenotype of asthma in which low lung function is dissociated from eosinophilic cellular inflammation.
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