Níveis séricos de adipocinas e ácidos graxos em pacientes comperiodontite crônica generalizada

• Autor(a) principal: Sete, Manuela Rubim Camara
• Data de Publicação: 2013
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Biblioteca Digital de Teses e Dissertações da UERJ
• Texto Completo: http://www.bdtd.uerj.br/handle/1/14167
• topic: Periodontitis; Adipokines; Leptin; Resistin; Adiponectin; Fatty acids; Periodontite; Adipocinas; Leptina; Resistina; Adiponectina; Ácidos graxos; CNPQ::CIENCIAS DA SAUDE::ODONTOLOGIA

Adipose tissue is a large reservoir of biologically active mediators, such as adipokines. The main ones are leptin, resistin and adiponectin, which are present in inflammatory processes and can be directly linked to periodontal disease. Fatty acids might have a regulatory role on these adipokines. The aim of this study was to compare the concentrations of leptin, resistin and adiponectin and docosahexaenoic acid(DHA), docosapentaenoic acid (DPA), eicosapentaenoic acid(EPA) and arachidonic acid (AA), in the blood of patients with generalized chronic periodontitis and gingivitis. Secondary objective was to evaluate the ratio of these substances in the serum of these patients. Participants were 15 systemically healthy patients with chronic periodontitis (test group, mean age: 45.7 ± 9.4 years) and 15 with gingivitis (control group, mean age 32.1 ± 7.8 years). We recorded medical and periodontal parameters and collected blood samples. Serum concentrations of fatty acids were analyzed by gas chromatography and adipokines were analyzed by multiplex bead immunoassay. Comparisons between variables were analyzed by Mann - Whitney test and correlations using the Spearman test. There was no significant difference between the levels of adipokines between groups. Considering the levels of DHA, DPA, EPA and AA, there was difference significantly higher for the group of patients with periodontitis compared to the group with gingivitis. The ratios res/DHA, res/AA, adipon/DHA, adipon/AA and adipon/DPA were significantly lower for the group periodontitis. There was no correlation between adipokines and clinical parameters analyzed and between levels of adipokines and fatty acids. We conclude that generalized chronic periodontitis differs significantly higher levels of fatty acids when compared to gingivitis. Adipokines, resistin and adiponectin, showed a tendency to lower values in periodontitis. Reasons s results suggest a smaller proportion of adiponectin and resistin in relation to the fatty acids in periodontitis.