|
Sign In to gain access to subscriptions and/or personal tools.
|
Rosiglitazone Reduces the Evolution of Experimental Periodontitis in the Rat
R. Di Paola1,
E. Mazzon1,
D. Maiere1,
D. Zito1,
D. Britti2,
M. De Majo3,
T. Genovese1 and
S. Cuzzocrea1,*
1 Department of Clinical and Experimental Medicine and Pharmacology, Torre Biologica, Policlinico Universitario, Via C. Valeria, Gazzi, 98100 Messina, Italy;
2 Department of Clinical Veterinary Science, University of Teramo, Italy; and
3 Department of Clinical Veterinary Medicine and Pharmacology University of Messina, Italy
Correspondence: * corresponding author, salvator{at}unime.it
The peroxisome proliferator-activated receptor- (PPAR- ) receptor appears to play a pivotal role in the regulation of cellular proliferation and inflammation. Recent evidence also suggests that rosiglitazone, a PPAR- agonist, reduces acute and chronic inflammation. We hypothesized that rosiglitazone would attenuate periodontal inflammation. In the present study, we investigated the effects of rosiglitazone in a rat model of ligature-induced periodontitis. At day 8, ligation significantly induced an increase in neutrophil infiltration, as well as of gingivomucosal tissue expression of iNOS, nitrotyrosine formation, and poly (ADP-ribose) polymerase activation. Ligation significantly increased Evans blue extravasation in gingivomucosal tissue and alveolar bone destruction. Intraperitoneal injection of rosiglitazone (10 mg/kg 10% DMSO daily for 8 days) significantly decreased all of the parameters of inflammation, as described above. Analysis of these data demonstrated that rosiglitazone exerted an anti-inflammatory role during experimental periodontitis, and was able to ameliorate the tissue damage associated with ligature-induced periodontitis.
Key Words: rosiglitazone peroxisome proliferator-activated receptor- ligand alveolar bone loss reactive oxygen species periodontal diseases
Journal of Dental Research, Vol. 85, No. 2,
156-161 (2006)
DOI: 10.1177/154405910608500208

CiteULike Complore Connotea Del.icio.us Digg Reddit Technorati Twitter What's this?
|
|