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α1-抗胰蛋白酶缺乏症中的气道疾病。

Airway disease in alpha-1 antitrypsin deficiency.

机构信息

Division of Pulmonary and Critical Care Medicine, Department of Medicine, Medical University of South Carolina, Charleston, South Carolina 29425-6300, USA.

出版信息

COPD. 2013 Mar;10 Suppl 1:68-73. doi: 10.3109/15412555.2013.764404.

Abstract

Although less well appreciated than pulmonary emphysema, inflammation of the airways is an early and important finding in alpha-1 antitrypsin deficiency (AATD). The spectrum of clinical presentations of airways disease includes cough and wheezing that is frequently diagnosed as asthma. Study of the airways inflammation in sputum or the proximal airways usually reveals neutrophilic inflammation. Although there is significant phenotypic variation, tubular airways dilation consistent with bronchiectasis is a common finding in areas of panlobular emphysema in severely deficient AATD. Other phenotypes of varicose and saccular bronchiectasis have been described. Since AAT may impact the course of bacterial, mycobacterial and viral clearance, future studies of the airway microbiota will inform whether airway pathogens are responsible for some pulmonary AATD phenotypes. Whether airways disease improves with AAT augmentation therapy remains unknown.

摘要

虽然不如肺气肿那么受关注,但气道炎症是α-1 抗胰蛋白酶缺乏症(AATD)的早期重要发现。气道疾病的临床表现范围包括经常被诊断为哮喘的咳嗽和喘息。对痰或近端气道的气道炎症研究通常显示中性粒细胞炎症。尽管存在显著的表型变异,但在严重缺乏 AATD 的全小叶肺气肿区域中,管状气道扩张与支气管扩张一致是常见的发现。已经描述了其他形式的静脉曲张和囊状支气管扩张。由于 AAT 可能影响细菌、分枝杆菌和病毒清除的过程,因此对气道微生物组的未来研究将说明气道病原体是否是某些肺部 AATD 表型的原因。气道疾病是否会随着 AAT 增强治疗而改善仍不清楚。

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