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Authordc.contributor.authorPozo, P. 
Authordc.contributor.authorValenzuela, M. 
Authordc.contributor.authorMelej, C. 
Authordc.contributor.authorZaldívar, M. 
Authordc.contributor.authorPuente, J. 
Authordc.contributor.authorMartínez, B. 
Authordc.contributor.authorGamonal Aravena, Jorge Antonio 
Cita de ítemdc.identifier.citationJournal of Periodontal Research, Volumen 40, Issue 3, 2005, Pages 199-207.
Abstractdc.description.abstractBackground: The aim of this work was to improve the assessment of the periodontal disease status through measurements of extracellular matrix metalloproteinases (MMPs) and their tissular inhibitors (TIMPs) in the gingival crevicular fluid from patients diagnosed with chronic periodontitis. Methods: Gingival crevicular fluid samples from patients (n ¼ 13) were taken from 60 sites initially, and from 51 and 41 sites, respectively, 3 and 6 months after scaling and root planing. Gingival crevicular fluid samples were also taken from healthy subjects (n ¼ 11, 24 sites). The presence of MMP-9 and MMP-8 was assessed by zymography and immunowestern blotting, respectively. The actual MMP activity (gelatinase and collagenase) was measured using the fluorogenic substrate assay. TIMP-1 and -2 levels were measured by immunodot blot. Results: The fluorogenic substrate assay determinations showed higher MMP activity in sites with probing depth ‡ 4 mm, with significant reduction posttreatment. Gelatinase activity followed by zymography consisted mainly of MMP9. A different pattern of MMP-8 in control and patient sites was found. Controls only showed species of a partially active form (69 kDa), whereas patient sites showed a high frequency of the active form (56 kDa), and in some cases the latent form (85 kDa) was also observed. The active form reduced its frequency in sites with probing depth ‡ 4 mm. TIMP-1 and -2 levels in patients were significantly lower than in controls, and after treatment the recovery of TIMP-1 level similar to control was observed. Conclusion: Significant correlations between the severity of the periodontal disease and the actual MMP activity, the active form of MMP-8 and the low level of both TIMP-1 and TIMP-2 were found.
Type of licensedc.rightsAttribution-NonCommercial-NoDerivs 3.0 Chile
Link to Licensedc.rights.uri
Sourcedc.sourceJournal of Periodontal Research
Keywordsdc.subjectGingival crevicular fluid
Keywordsdc.subjectMatrix metalloproteinases
Keywordsdc.subjectTissue inhibitors of metalloproteinases
Títulodc.titleLongitudinal analysis of metalloproteinases, tissue inhibitors of metalloproteinases and clinical parameters in gingival crevicular fluid from periodontitis-affected patients
Document typedc.typeArtículo de revista
Indexationuchile.indexArtículo de publicación SCOPUS

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Attribution-NonCommercial-NoDerivs 3.0 Chile
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 3.0 Chile