Dissertation (Ph.D.)--University of South Florida, 2008. / Includes vita. Includes bibliographical references. Also available online.

Diss. (sammanfattning) Stockholm : Karolinska institutet, 2007. / Härtill 4 uppsatser.

Thesis (M.Sc.). / Written for the Dept. of Epidemiology, Biostatistics and Occupational Health. Title from title page of PDF (viewed 2008/07/30). Includes bibliographical references.

Thesis (Ph. D.)--University of Washington, 2008. / Vita. Includes bibliographical references (leaves 186-207).

Thesis (M.S.)--West Virginia University, 2005. / Title from document title page. Document formatted into pages; contains viii, 59 p. : ill. (some col.). Vita. Includes abstract. Includes bibliographical references (p. 33-38).

Thesis (M.S.)--University of Louisville, 1997. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.

Thesis (M.S.)--University of Louisville, 1997. / Includes bibliographical references.

Thesis (Ph. D.)--University of Oklahoma. / Bibliography: leaves 168-181.

Made available in DSpace on 2014-06-11T19:28:03Z (GMT). No. of bitstreams: 0 Previous issue date: 2002-02-26Bitstream added on 2014-06-13T19:36:31Z : No. of bitstreams: 1 holzhausen_m_me_arafo.pdf: 303699 bytes, checksum: dbc30244f92a6542f0734a6ffd556f90 (MD5) / Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) / Os metabólitos do AA exercem um reconhecido papel na patogênese da doença periodontal. O objetivo deste trabalho foi avaliar o efeito do celecoxib, um inibidor seletivo da enzima cicloxigenase-2 (COX-2), sobre o desenvolvimento de doença periodontal induzida por ligadura em ratos. Após a colocação de ligadura de algodão ao redor dos primeiros molares inferiores direitos, 180 ratos Holtzman foram aleatoriamente subdivididos em 3 grupos experimentais com 60 animais cada, os quais receberam diariamente dose oral de celecoxib 10 mg ou 20 mg/ kg de peso corporal (grupos Ce1 e Ce2, respectivamente) ou, dose oral de 10ml/kg de NaCl a 0,9% (grupo Controle). Aos 3, 5, 10, 18 e 30 dias após o início do experimento, 12 animais de cada grupo experimental foram sacrificados. O tratamento com celecoxib, em ambas as concentrações, reduziu significantemente (p<0.05) a perda óssea alveolar radiográfica aos 5 dias e, diminuiu a intensidade da reabsorção óssea, observada histologicamente, aos 30 dias. Ainda, o celecoxib atrasou o início e, diminui a magnitude, do processo inflamatório agudo. Estes resultados demonstram que a inibição seletiva da COX-2 com o celecoxib, pode interferir com a resposta do tecido periodontal frente à presença de ligadura em ratos. / Arachidonic acid metabolites have a recognized role in the pathogenesis of periodontal disease. The purpose of this study was to evaluate the effect of a selective cyclooxygenase-2 (COX-2) inhibitor, celecoxib, on the progression of periodontal disease in a ligature-induced periodontitis model in rats. After ligature placement in the mandibular right first molars, 180, 6-week-old Holtzman rats were ramdomly assigned to one of the following groups of treatment that consisted in a daily oral dose of 10mg/kg body weight of celecoxib (Ce1), 20mg/kg body weight of celecoxib (Ce2) or 10ml/kg of 0,9%NaCl (Control). At 3, 5, 10, 18 and 30 days later, 12 animals of each group were sacrificed. Treatment with celecoxib significantly (p < 0.05) decreased the radiographic bone loss at 5 days of experiment and, decreased the bone loss activity, histologically observed at 30 days. In addition, celecoxib was shown to delay the onset and to suppress the magnitude of the acute inflammatory process. These results show that selective cyclooxygenase-2 (COX-2) inhibition with celecoxib, can interfer with the periodontal tissue response to ligature placement in rats.

Thesis--University of Oklahoma. / Bibliography: leaves 159-175.