Surfactant proteins SP-B and SP-C and their precursors in bronchoalveolar lavages from children with acute and chronic inflammatory airway disease
2008

Surfactant Proteins in Children's Lung Diseases

Sample size: 64 publication Evidence: moderate

Author Information

Author(s): Oliver Tafel, Philipp Latzin, Karl Paul, Tobias Winter, Markus Woischnik, Matthias Griese

Primary Institution: Children's Hospital of Ludwig Maximilian University, Munich, Germany

Hypothesis

The study investigates the levels and forms of surfactant proteins SP-B and SP-C in children with various inflammatory airway diseases.

Conclusion

The concentration or molecular form of SP-B and SP-C is not altered in bronchoalveolar lavage of children with different acute and chronic inflammatory lung diseases.

Supporting Evidence

  • SP-B was detected in all patients, while SP-C was found in all but three children.
  • No significant differences in SP-B and SP-C levels were observed between the patient groups.
  • SP-B was mainly present as a dimer, while SP-C was found as a monomer.

Takeaway

This study looked at special proteins in the lungs of sick children and found that these proteins didn't change even when the children were very sick.

Methodology

1D-electrophoresis and Western blotting were used to analyze bronchoalveolar lavage fluid from children with various lung diseases.

Limitations

The study did not separate lavage samples into large and small surfactant aggregates due to material shortages.

Participant Demographics

Participants included 21 children with cystic fibrosis, 15 with chronic bronchitis, 14 with pneumonia, and 14 healthy controls.

Statistical Information

P-Value

p<0.05

Digital Object Identifier (DOI)

10.1186/1471-2466-8-6

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