{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,17]],"date-time":"2026-01-17T04:36:20Z","timestamp":1768624580931,"version":"3.49.0"},"reference-count":40,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2005,3,7]],"date-time":"2005-03-07T00:00:00Z","timestamp":1110153600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J of Periodontal Research"],"published-print":{"date-parts":[[2005,6]]},"abstract":"<jats:p><jats:bold>Background:\u2002<\/jats:bold> 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.<\/jats:p><jats:p><jats:bold>Methods:\u2002<\/jats:bold> Gingival crevicular fluid samples from patients (<jats:italic>n<\/jats:italic>\u2003=\u200313) were taken from 60 sites initially, and from 51 and 41 sites, respectively, 3 and 6\u2003months after scaling and root planing. Gingival crevicular fluid samples were also taken from healthy subjects (<jats:italic>n<\/jats:italic>\u2003=\u200311, 24 sites). The presence of MMP\u20109 and MMP\u20108 was assessed by zymography and immunowestern blotting, respectively. The actual MMP activity (gelatinase and collagenase) was measured using the fluorogenic substrate assay. TIMP\u20101 and \u20102 levels were measured by immunodot blot.<\/jats:p><jats:p><jats:bold>Results:\u2002<\/jats:bold> The fluorogenic substrate assay determinations showed higher MMP activity in sites with probing depth \u2265\u200a4\u2003mm, with significant reduction post\u2010treatment. Gelatinase activity followed by zymography consisted mainly of MMP\u20109. A different pattern of MMP\u20108 in control and patient sites was found. Controls only showed species of a partially active form (69\u2003kDa), whereas patient sites showed a high frequency of the active form (56\u2003kDa), and in some cases the latent form (85\u2003kDa) was also observed. The active form reduced its frequency in sites with probing depth \u2265\u200a4\u2003mm. TIMP\u20101 and \u20102 levels in patients were significantly lower than in controls, and after treatment the recovery of TIMP\u20101 level similar to control was observed.<\/jats:p><jats:p><jats:bold>Conclusion:\u2002<\/jats:bold> Significant correlations between the severity of the periodontal disease and the actual MMP activity, the active form of MMP\u20108 and the low level of both TIMP\u20101 and TIMP\u20102 were found.<\/jats:p>","DOI":"10.1111\/j.1600-0765.2005.00786.x","type":"journal-article","created":{"date-parts":[[2005,4,22]],"date-time":"2005-04-22T16:00:49Z","timestamp":1114185649000},"page":"199-207","source":"Crossref","is-referenced-by-count":87,"title":["Longitudinal analysis of metalloproteinases, tissue inhibitors of metalloproteinases and clinical parameters in gingival crevicular fluid from periodontitis\u2010affected patients"],"prefix":"10.1111","volume":"40","author":[{"given":"P.","family":"Pozo","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"M. 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