Chronic obstructive pulmonary disease(COPD)is a complex and heterogeneous disease characterized by airway inflammation.Airway inflammation dominated by eosinophils(EOS)has attracted increasing attention in the occurrence and development of COPD.EOS type COPD is a special population in a large number of COPD patients.In recent years,there have been many studies on EOS type COPD,involving type 2 immune response,COPD progression and the use of glucocorticoids.This article reviews the above relationships.It is helpful to further understand EOS type COPD and provide help for the clinical diagnosis and treatment of COPD.
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