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| Título: | Inflammatory related changes in lung tissue mechanics after bleomycin-induced lung injury |
Autor: | Serrano-Mollar, Anna CSIC ORCID; Romero, Pablo V. | Palabras clave: | Hysteresivity Myeloperoxidase Hydroxyproline Elastin Bleomycin |
Fecha de publicación: | 1-feb-2008 | Editor: | Elsevier | Citación: | Respiratory Physiology and Neurobiology 160(2): 196-203 (2008) | Resumen: | The impact of lung remodelling in respiratory mechanics has been widely studied in bleomycin-induced lung injury. However, little is known regarding the relationship between the amount of lung inflammation and pulmonary tissue mechanics. For this purpose, rats were intratracheally instilled with bleomycin (n = 29) or saline (n = 8) and sacrificed at 3, 7, or 15 days. Forced oscillatory mechanics as well as indices of remodelling (elastic fibre content and hydroxyproline) and inflammation (myeloperoxidase content, total cell count, alveolar wall thickness, and lung water content) were studied in lung tissue strips. Tissue resistance increased significantly at day 15, while hysteresivity was significantly higher in bleomycin group compared to control at all time points. Elastic fibres, hydroxyproline and myeloperoxidase contents augmented after bleomycin at days 7 and 15. Tissue resistance and hysteresivity were significantly correlated with myeloperoxidase, elastic fibre and lung water content. In conclusion, inflammatory structural changes and elastogenesis are the main determinants for hysteretic changes in this 2-week bleomycin-induced lung injury model. | Descripción: | et al. | Versión del editor: | http://dx.doi.org/10.1016/j.resp.2007.09.012 | URI: | http://hdl.handle.net/10261/37366 | DOI: | 10.1016/j.resp.2007.09.012 | ISSN: | 1569-9048 | E-ISSN: | 1878-1519 |
| Aparece en las colecciones: | (IIBB) Artículos |
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