[Ceruloplasmin, haptoglobin and transferrin levels in bronchial secretions of children with chronic respiratory tract diseases].

Bronchial secretions from 191 children with various respiratory diseases and from 7 healthy controls were tested for concentration of ceruloplasmin, haptoglobin and transferrin. Highest protein levels were observed in children with bronchiectasis and cystic fibrosis. The protein levels were correlated with the intensity of the inflammatory process.