期刊
JOURNAL OF CLINICAL PERIODONTOLOGY
卷 38, 期 11, 页码 1029-1036出版社
WILEY-BLACKWELL
DOI: 10.1111/j.1600-051X.2011.01780.x
关键词
bone loss; experimental periodontitis; inflammation; Kavain; osteoprotegerin-Fc; receptor activator of nuclear factor-kappa B ligand antagonist; receptor activator of nuclear factor-kappa B-Fc
资金
- NIH/NIDCR [R01 DE014079]
Aim: The purpose of this study was to assess the role of anti-bone resorptive agents and an anti-inflammatory compound in murine Porphyromonas gingivalis (P. gingivalis)-induced periodontitis. Material and Methods: Six randomly assigned groups were administered vehicle (saline, control) (n = 6), P. gingivalis infection only (untreated) (n = 6), human-Fc (n = 4), Kavain (n = 6), OPG-Fc (n = 6) and Receptor activator of nuclear factor-kappa B (RANK)-Fc (n = 6) intraperitoneally at day 0, 3 and 7. Animals were euthanized on day 10 and subjected to comprehensive histomorphometric analysis. To capture the progress of inflammation, serum samples were collected at days 0, 3, 7 and 10 for levels of pro-inflammatory cytokines. Results: Compared with control group, OPG-Fc, RANK-Fc and Kavain treatment showed significant bone loss reduction with OPG-Fc performing better than RANK-Fc or Kavain. Epithelial down-growth showed significant reduction in treatment groups with OPG-Fc performing better than RANK-Fc or Kavain. Finally, Kavain, OPG-Fc and RANK-Fc-treated mice displayed reduced inflammatory cell counts and cytokine expression particularly at day 7 postinfection. Conclusions: RANKL antagonists and Kavain effectively reduced alveolar bone loss in P. gingivalis-induced periodontitis in our mice model. Compared with RANK-Fc, Kavain-treated animals showed milder improvement of bone and connective tissue inflammation. Therapeutic implications in the prevention of periodontal bone loss are discussed.
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