Sputum Basophils and Asthma Diagnosis: Dawn of a New Era?

Abstract

More than 40 years ago, Kimura et al. discovered that basophils are enriched in sputum samples of asthma patients (1). Since then, various scientific approaches have attempted to elucidate the role of basophils in the pathophysiology of asthma. The scarcity of basophils and technical limitations of earlier studies have made it difficult to increase our understanding how basophils affect the disease course in asthma.

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