Neutrophil-activating peptide-2 in patients with pulmonary edema from congestive heart failure or ARDS
| Autor: | Michael A. Matthay, A. B. Cohen, Jeanine P. Wiener-Kronish, M. D. Stevens, M. A. L. Atkinson, T. R. Martin, G. Mullenbach, E. J. Miller, R. J. Maunder |
|---|---|
| Rok vydání: | 1993 |
| Předmět: |
Pulmonary and Respiratory Medicine
ARDS medicine.medical_specialty Physiology Radioimmunoassay Pulmonary Edema Gastroenterology Platelet degranulation Physiology (medical) Internal medicine Edema Macrophages Alveolar medicine Humans Protein Precursors Cells Cultured Chromatography High Pressure Liquid Heart Failure Respiratory Distress Syndrome Lung medicine.diagnostic_test business.industry Respiratory disease Cell Biology respiratory system beta-Thromboglobulin Pulmonary edema medicine.disease respiratory tract diseases Bronchoalveolar lavage medicine.anatomical_structure Heart failure Immunology medicine.symptom Peptides business Bronchoalveolar Lavage Fluid human activities circulatory and respiratory physiology |
| Zdroj: | American Journal of Physiology-Lung Cellular and Molecular Physiology. 264:L490-L495 |
| ISSN: | 1522-1504 1040-0605 |
| DOI: | 10.1152/ajplung.1993.264.5.l490 |
| Popis: | We carried out studies to determine whether the neutrophil-activation peptide-2 (NAP-2) plays a role in the recruitment and/or degranulation of neutrophils into the lungs of patients with the adult respiratory distress syndrome (ARDS) or congestive heart failure (CHF). NAP-2 precursors plus NAP-2 (beta-thromboglobulin-like antigen) were measured in lung fluids and plasmas with a radioimmunoassay, and NAP-2 was separated from its precursors by high-performance liquid chromatography. Pulmonary edema fluids (PEFs) from patients with CHF contained higher concentrations of the beta-thromboglobulin-like antigen than PEFs from patients with ARDS, and bronchoalveolar lavage fluids (BALs) from patients with ARDS contained higher concentrations of beta-thromboglobulin-like antigen than BALs from normal subjects. beta-Thromboglobulin-like antigen concentration was 4.1-fold greater in PEFs from patients with CHF than in their plasmas. Chemotactically active NAP-2 was also demonstrated in PEFs but not in plasmas from patients with CHF and ARDS. These data suggest that significant platelet degranulation occurred into the lungs of the patients with CHF and that NAP-2 and other platelet constituents may contribute to fluid formation in patients with CHF. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|