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Relationship between blood and bronchial submucosal eosinophilia and reticular basement membrane thickening in chronic obstructive pulmonary disease.


ABSTRACT: A sputum eosinophilia is observed in 10-40% of COPD subjects. The blood eosinophil count is a biomarker of sputum eosinophilia, but whether it is associated with bronchial submucosal eosinophils is unclear. In 20 COPD subjects and 21 controls we assessed the number of bronchial submucosal eosinophils and reticular basement membrane thickening and found these were positively correlated with the blood eosinophil percentage. In COPD, blood eosinophils are a good biomarker of bronchial eosinophilia and remodelling.

SUBMITTER: Eltboli O 

PROVIDER: S-EPMC4833195 | biostudies-literature | 2015 May

REPOSITORIES: biostudies-literature

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Relationship between blood and bronchial submucosal eosinophilia and reticular basement membrane thickening in chronic obstructive pulmonary disease.

Eltboli Osama O   Mistry Vijay V   Barker Bethan B   Brightling Chris E CE  

Respirology (Carlton, Vic.) 20150127 4


A sputum eosinophilia is observed in 10-40% of COPD subjects. The blood eosinophil count is a biomarker of sputum eosinophilia, but whether it is associated with bronchial submucosal eosinophils is unclear. In 20 COPD subjects and 21 controls we assessed the number of bronchial submucosal eosinophils and reticular basement membrane thickening and found these were positively correlated with the blood eosinophil percentage. In COPD, blood eosinophils are a good biomarker of bronchial eosinophilia  ...[more]

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