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Id: biblio-839530
Autor: FUKUSHIMA, Henrique; ALVES, Vanessa Tubero Euzebio; CARVALHO, Verônica Franco de; AMBRÓSIO, Lucas Macedo Batitucci; EICHLER, Rosangela Aparecida dos Santos; CARVALHO, Maria Helena Catelli de; SARAIVA, Luciana; HOLZHAUSEN, Marinella.
Título: PAR-2 expression in the gingival crevicular fluid reflects chronic periodontitis severity
Fonte: Braz. oral res. (Online);31:e16, 2017. tab, graf.
Idioma: en.
Projeto: Sao Paulo State Research Foundation.
Resumo: Abstract Recent studies investigating protease-activated receptor type 2 (PAR-2) suggest an association between the receptor and periodontal inflammation. It is known that gingipain, a bacterial protease secreted by the important periodontopathogen Porphyromonas gingivalis can activate PAR-2. Previous studies by our group found that PAR-2 is overexpressed in the gingival crevicular fluid (GCF) of patients with moderate chronic periodontitis (MP). The present study aimed at evaluating whether PAR-2 expression is associated with chronic periodontitis severity. GCF samples and clinical parameters, including plaque and bleeding on probing indices, probing pocket depth and clinical attachment level, were collected from the control group (n = 19) at baseline, and from MP patients (n = 19) and severe chronic periodontitis (SP) (n = 19) patients before and 6 weeks after periodontal non-surgical treatment. PAR-2 and gingipain messenger RNA (mRNA) in the GCF of 4 periodontal sites per patient were evaluated by Reverse Transcription Polymerase Chain Reaction (RT-qPCR). PAR-2 and gingipain expressions were greater in periodontitis patients than in control group patients. In addition, the SP group presented increased PAR-2 and gingipain mRNA levels, compared with the MP group. Furthermore, periodontal treatment significantly reduced (p <0.05) PAR-2 expression in patients with periodontitis. In conclusion, PAR-2 is associated with chronic periodontitis severity and with gingipain levels in the periodontal pocket, thus suggesting that PAR-2 expression in the GCF reflects the severity of destruction during periodontal infection.
Descritores: Líquido do Sulco Gengival/química
Receptor PAR-2/análise
Periodontite Crônica/patologia
-Valores de Referência
Índice de Gravidade de Doença
Cisteína Endopeptidases/análise
Biomarcadores/análise
Estudos de Casos e Controles
Expressão Gênica
Índice Periodontal
Índice de Placa Dentária
Perda da Inserção Periodontal
Porphyromonas gingivalis
Estatísticas não Paramétricas
Adesinas Bacterianas/análise
Limites: Humanos
Masculino
Feminino
Adulto
Pessoa de Meia-Idade
Responsável: BR1.1 - BIREME



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