Active smoking in stable COPD subjects significantly increased eosinophil accumulation in the distal airspaces, but not in sputum or peripheral blood. Our findings support the need to investigate this cell-type as a potential driver of COPD symptomatology and progression.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5758424PMC
http://dx.doi.org/10.1016/j.jaci.2017.07.039DOI Listing

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