RT Journal Article SR Electronic T1 Pneumoproteinaemia: a new perspective in the assessment of lung disorders JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 801 OP 803 DO 10.1183/09031936.98.11040801 VO 11 IS 4 A1 C Hermans A1 A Bernard YR 1998 UL http://erj.ersjournals.com/content/11/4/801.abstract AB Here we make the hypothesis that the determination of the concentration of lung specific secretory proteins in serum or pneumoproteinaemia could be used in the evaluation of lung disorders with a similar utility as proteinuria in kidney diseases involving the glomeruli. Human and experimental data indicate that comparable structural and functional features govern the passage of proteins across the lung epithelium/blood barrier and the glomerular filter. The concentrations in serum of some lung-specific secretory proteins, such as the bronchiolar Clara cell 16 kDa protein (CC16) and alveolar surfactant-associated proteins A and B (SP-A and SP-B, respectively), might be used to assess the integrity of the bronchoalveolar/blood barrier known to be disrupted in many lung disorders. In addition, if this barrier is intact or slightly compromised, these proteins might serve as peripheral markers to detect changes in secretory epithelial cells in the lung.