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Artículo

Bacterial biofilm evidence in nasal polyposis

Zernotti, Mario Emilio; Angel Villegas, NataliaIcon ; Roques Revol, M.; Baena Cagnani, C. E.; Arce Miranda, Julio EduardoIcon ; Paredes, M. E.; Albesa, Inés; Paraje, María GabrielaIcon
Fecha de publicación: 12/2009
Editorial: Sociedad Española de Alergología e Inmunología Clínica
Revista: Journal Of Investigational Allergology And Clinical Immunology
ISSN: 1018-9068
e-ISSN: 1698-0808
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Reumatología

Resumen

The pathogeny of chronic rhinosinusitis with nasal polyposis (CRS/NP) has not been elucidated. Bacterial exotoxins have beenimplicated in many infl ammatory chronic diseases, such as chronic otitis, chronic tonsillitis, cholesteatomas, and more recently CRS/NP. Wepropose that the bacteria in CRS/NP are not only present in a planktonic state, but also occur in microbial communities as biofi lms.Objective: To determine and characterize the presence of biofi lms in CRS/NP.Methods: We performed a prospective study in 12 patients undergoing endoscopic sinus surgery for nasal polyposis. Ten patients withoutCRS/NP who underwent septoplasty were included as a control group. Tissue samples were obtained from the inferior turbinate mucosae.The bacteria were isolated and typifi ed and the material was examined in vitro using a spectrophotometer, and in vivo using opticalmicroscopy and confocal scanning laser microscopy.Results: Moderate to high in vitro biofi lm-forming capacity was detected in 9 out of 12 patients with CRS/NP (mean [SD] optical densityvalues of between 0.284 [0.017] and 3.337 [0.029]). The microorganisms isolated were Staphylococcus (5 patients), Streptococcus viridans,Pseudomonas aeruginosa, Enterococcus faecalis and Streptococcus viridans/Corynebacterium. Biofi lms were demonstrated in vivo in 2 patientsand no biofi lm structures were evident in any of the controls.Conclusion: This study demonstrates the presence of bacterial biofi lms in patients with CRS/NP. This chronic infl ammatory factor mightcontribute to nasal mucosa damage, increased infl ammatory cells in tissue, and the subsequent hyperplasic process
Palabras clave: Biofilms , Nasal Polylosis , Chronic Rhinosinusitis , Confocal Scanning Laser Microscopy
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/27305
URL: http://www.jiaci.org/summary/vol20-issue5-num623
Colecciones
Articulos(IMBIV)
Articulos de INST.MULTIDISCIPL.DE BIOLOGIA VEGETAL (P)
Citación
Zernotti, Mario Emilio; Angel Villegas, Natalia; Roques Revol, M.; Baena Cagnani, C. E.; Arce Miranda, Julio Eduardo; et al.; Bacterial biofilm evidence in nasal polyposis; Sociedad Española de Alergología e Inmunología Clínica; Journal Of Investigational Allergology And Clinical Immunology; 20; 5; 12-2009; 380-385
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