The DOI matches its Crossref record; 32 of the 32 references it cites were found in a registry or an index.
Airway Bacterial Load and FEV 1 Decline in Patients with Chronic Obstructive Pulmonary Disease
Abstract
Chronic obstructive pulmonary disease (COPD) is characterized by an accelerated decline in lung function and progressive airway inflammation. Bacteria have been isolated from the lower airway of stable COPD patients, and airway inflammation has been related to bacterial load and type. The relationship between bacterial colonization, airway inflammation, and lung function decline remains uncertain. We studied 30 patients with COPD, mean (SD) FEV1 0.947 (0.329), 34.8% (13.6%) predicted, for 12 months. Sputum collected at recruitment and the end of the study was analyzed for cytokines and for quantitative bacteriology. The decline in FEV1 was 57.6 (137.6) ml year-1. Bacterial growth was identified in all subjects, with an initial count of 107.47(0.91) cfu ml-1 rising to 107.93(0.81) cfu ml-1 at the end of the study (p = 0.019). FEV1 decline was related to this increase in airway bacterial load (r = 0.59, p = 0.001). FEV1 decline was greater in subjects who exhibited a change in the colonizing bacterial type compared with those with persistence of a single bacterial species over the study period (p = 0.017). Higher sputum interleukin (IL-8) was associated with greater declines in FEV1 (p = 0.03). Rising airway bacterial load and species changes are associated with greater airway inflammation and accelerated decline in FEV1. Bacterial colonization in COPD is an important factor in disease progression.
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The immune response to Prevotella bacteria in chronic inflammatory disease
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Guidelines for the management of adult lower respiratory tract infections - Summary
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Airway Inflammation and Bronchial Bacterial Colonization in Chronic Obstructive Pulmonary Disease
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Self-citation
Metadata
- Authors
- Wilkinson, T. M. A., Patel, I. S., Wilks, M., Donaldson, G. C., & Wedzicha, J. A.
- Venue
- American Journal of Respiratory and Critical Care Medicine
- Publisher
- Oxford University Press (OUP)
- Published
- 2003-04-15
- Volume
- 167
- Issue
- 8
- Pages
- 1090-1095
- ISSN
- 1073-449X (ISSN-L)
- 1535-4970
- OpenAlex
- W1907868111
- Cited by
- 370
- References
- 32
- FWCI
- 19.57
- Type
- journal article
- Language
- en
- Open access
- closed
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