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Impact and associations of eosinophilic inflammation in COPD: analysis of the AERIS cohort
European Respiratory Journal ( IF 24.3 ) Pub Date : 2017-10-01 , DOI: 10.1183/13993003.00853-2017
Viktoriya L. Kim , Ngaire A. Coombs , Karl J. Staples , Kristoffer K. Ostridge , Nicholas P. Williams , Stephen A. Wootton , Jeanne-Marie Devaster , Emmanuel Aris , Stuart C. Clarke , Andrew C. Tuck , Simon C. Bourne , Tom M.A. Wilkinson

Eosinophilic inflammation in chronic obstructive pulmonary disease (COPD) predicts response to treatment, especially corticosteroids. We studied the nature of eosinophilic inflammation in COPD prospectively to examine the stability of this phenotype and its dynamics across exacerbations, and its associations with clinical phenotype, exacerbations and infection. 127 patients aged 40–85 years with moderate to very severe COPD underwent repeated blood and sputum sampling at stable visits and within 72 h of exacerbation for 1 year. Blood eosinophils ≥2% was prevalent at baseline, and predicted both predominantly raised stable-state eosinophils across the year (area under the curve 0.841, 95% CI 0.755–0.928) and increased risk of eosinophilic inflammation at exacerbation (OR 9.16; p<0.001). Eosinophils ≥2% at exacerbation and eosinophil predominance at stable visits were associated with a lower risk of bacterial presence at exacerbation (OR 0.49; p=0.049 and OR 0.25; p=0.065, respectively). Bacterial infection at exacerbation was highly seasonal (winter versus summer OR 4.74; p=0.011) in predominantly eosinophilic patients. Eosinophilic inflammation is a common and stable phenotype in COPD. Blood eosinophil counts in the stable state can predict the nature of inflammation at future exacerbations, which when combined with an understanding of seasonal variation provides the basis for the development of new treatment paradigms for this important condition. Blood eosinophil levels in COPD predict the nature of inflammation at future exacerbations and may guide therapy http://ow.ly/W10o30dNQiq

中文翻译:

嗜酸性粒细胞炎症对 COPD 的影响和关联:AERIS 队列分析

慢性阻塞性肺疾病 (COPD) 中的嗜酸性粒细胞炎症可预测对治疗的反应,尤其是皮质类固醇。我们前瞻性地研究了 COPD 中嗜酸性粒细胞炎症的性质,以检查这种表型的稳定性及其在恶化过程中的动态,以及它与临床表型、恶化和感染的关联。127 名年龄在 40-85 岁的中度至极重度 COPD 患者在稳定就诊和恶化 72 小时内接受了重复的血液和痰采样,为期 1 年。血液嗜酸性粒细胞≥2% 在基线时普遍存在,并且预测全年稳定状态嗜酸性粒细胞主要升高(曲线下面积 0.841,95% CI 0.755–0.928)和恶化时嗜酸性粒细胞炎症的风险增加(OR 9.16;p< 0.001)。恶化时嗜酸性粒细胞≥2% 和稳定就诊时嗜酸性粒细胞占优势与恶化时细菌存在的风险较低相关(分别为 OR 0.49;p=0.049 和 OR 0.25;p=0.065)。在以嗜酸性粒细胞为主的患者中,急性加重时的细菌感染具有很强的季节性(冬季与夏季 OR 4.74;p=0.011)。嗜酸性粒细胞炎症是 COPD 中常见且稳定的表型。稳定状态下的血液嗜酸性粒细胞计数可以预测未来恶化时炎症的性质,当结合对季节性变化的理解时,为这种重要疾病的新治疗范式的开发提供了基础。COPD 患者的血嗜酸性粒细胞水平可预测未来恶化时炎症的性质,并可指导治疗 http://ow.ly/W10o30dNQiq 分别)。在以嗜酸性粒细胞为主的患者中,急性加重时的细菌感染具有很强的季节性(冬季与夏季 OR 4.74;p=0.011)。嗜酸性粒细胞炎症是 COPD 中常见且稳定的表型。稳定状态下的血液嗜酸性粒细胞计数可以预测未来恶化时炎症的性质,当结合对季节性变化的理解时,为这种重要疾病的新治疗范式的开发提供了基础。COPD 患者的血嗜酸性粒细胞水平可预测未来恶化时炎症的性质,并可指导治疗 http://ow.ly/W10o30dNQiq 分别)。在以嗜酸性粒细胞为主的患者中,急性加重时的细菌感染具有很强的季节性(冬季与夏季 OR 4.74;p=0.011)。嗜酸性粒细胞炎症是 COPD 中常见且稳定的表型。稳定状态下的血液嗜酸性粒细胞计数可以预测未来恶化时炎症的性质,当结合对季节性变化的理解时,为这种重要疾病的新治疗范式的开发提供了基础。COPD 患者的血嗜酸性粒细胞水平可预测未来恶化时炎症的性质,并可指导治疗 http://ow.ly/W10o30dNQiq 稳定状态下的血液嗜酸性粒细胞计数可以预测未来恶化时炎症的性质,当结合对季节性变化的理解时,为这种重要疾病的新治疗范式的开发提供了基础。COPD 患者的血嗜酸性粒细胞水平可预测未来恶化时炎症的性质,并可指导治疗 http://ow.ly/W10o30dNQiq 稳定状态下的血液嗜酸性粒细胞计数可以预测未来恶化时炎症的性质,当结合对季节性变化的理解时,为这种重要疾病的新治疗范式的开发提供了基础。COPD 患者的血嗜酸性粒细胞水平可预测未来恶化时炎症的性质,并可指导治疗 http://ow.ly/W10o30dNQiq
更新日期:2017-10-01
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