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- W2009319731 abstract "Las metaloproteinasas de matriz (MMP) son un conjunto de endopeptidasas implicadas en la degradación de la matriz extracelular, que podrían explicar los cambios histológicos característicos de la poliposis nasal. El objetivo de este estudio consiste en determinar la implicación de MMP-2 y MMP-9 en la rinosinusitis crónica con poliposis nasal. Para ello, se tomaron muestras de 15 pacientes afectados de poliposis nasal y muestras de 15 controles intervenidos de turbinoplastia. Las muestras se procesaron para análisis de la expresión de ambas MMP mediante Western blot, y para determinación de su actividad enzimática mediante cimografía. Los resultados mostraron un incremento de la actividad y de la expresión de MMP-9, pero no de MMP-2, en las muestras procedentes de pacientes afectados de poliposis nasal en comparación con los controles. Estos resultados apoyarían la implicación de la MMP-9 en la remodelación tisular característica de esta enfermedad. Matrix metalloproteinases (MMP) are a family of endopeptidases involved in extracellular matrix degradation and which could potentially explain specific histological changes in nasal polyposis. The aim of this study is to determine whether MMP-2 and 9 are involved in chronic rhinosinusitis with polyposis. Specimens were collected from 15 patients affected by nasal polyposis and 15 control patients (with turbinoplasty performed). Specimens were processed for determination of protein expression levels by Western-blot and for determination of their enzymatic activity by zymography for both MMPs. Results showed a higher expression and activity of MMP-9 but not of MMP-2 in specimens from patients with polyposis when compared with controls. These results support the involvement of MMP-9 in the tissue remodelling characteristic of this disease." @default.
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- W2009319731 date "2008-11-01" @default.
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- W2009319731 title "Aumento de expresión y actividad de MMP-9 en rinosinusitis crónica con poliposis nasal" @default.
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- W2009319731 doi "https://doi.org/10.1016/s0001-6519(08)75116-1" @default.
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