{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,11]],"date-time":"2026-06-11T16:47:11Z","timestamp":1781196431531,"version":"3.54.1"},"reference-count":0,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[1994,8,1]],"date-time":"1994-08-01T00:00:00Z","timestamp":775699200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Periodontology"],"published-print":{"date-parts":[[1994,8]]},"abstract":"<jats:p>C<jats:sc>ellular and biochemical observations<\/jats:sc> were made of fibroblasts harvested from ligature\u2010induced periodontitis and treated gingivitis areas in four adult female cynomolgus monkeys (<jats:italic>Macaca fascicularis<\/jats:italic>) to define the changes that occur in the early periodontitis lesion. Compared with fibroblasts from the treated sites, fibroblasts from the diseased areas had a significantly higher rate of proliferation, produced about two\u2010thirds the amount of total protein and collagen, and failed to respond to TGF\u2010\u03b2, which normally stimulates extracellular matrix formation in mesenchymal cells. The diseased cells were also deficient in the activity of poly(ADP\u2010ribose) synthetase, an enzyme involved in the repair of DNA breaks such as occur from the insults of Superoxide and other active radicals present in inflamed areas. Although the precise nature of these biochemical defects is not fully elucidated, they may have an important bearing on chronic periodontitis cases with a \u201edownhill\u201d course. <jats:italic>J Periodontol 1994;65:771\u2013775<\/jats:italic>.<\/jats:p>","DOI":"10.1902\/jop.1994.65.8.771","type":"journal-article","created":{"date-parts":[[2012,3,21]],"date-time":"2012-03-21T01:22:04Z","timestamp":1332292924000},"page":"771-775","source":"Crossref","is-referenced-by-count":12,"title":["Alterations of Fibroblast Metabolism in Early Ligature\u2010Induced Periodontitis in the Cynomolgus Monkey"],"prefix":"10.1002","volume":"65","author":[{"given":"M. Zamirul","family":"Hussain","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Q. Perveen","family":"Ghani","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jin\u2010Cai","family":"Zhang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Belma","family":"Enriquez","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christine","family":"Hayashi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"M. Robert","family":"Wirthlin","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[1994,8]]},"container-title":["Journal of Periodontology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/aap.onlinelibrary.wiley.com\/doi\/pdf\/10.1902\/jop.1994.65.8.771","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,19]],"date-time":"2025-10-19T13:47:51Z","timestamp":1760881671000},"score":1,"resource":{"primary":{"URL":"https:\/\/aap.onlinelibrary.wiley.com\/doi\/10.1902\/jop.1994.65.8.771"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1994,8]]},"references-count":0,"journal-issue":{"issue":"8","published-print":{"date-parts":[[1994,8]]}},"alternative-id":["10.1902\/jop.1994.65.8.771"],"URL":"https:\/\/doi.org\/10.1902\/jop.1994.65.8.771","archive":["Portico"],"relation":{},"ISSN":["0022-3492","1943-3670"],"issn-type":[{"value":"0022-3492","type":"print"},{"value":"1943-3670","type":"electronic"}],"subject":[],"published":{"date-parts":[[1994,8]]}}}