Associação da disfunção temporomandibular com o polimorfismo 102T-C do gene do receptor da serotonina HTR2A

Detalhes bibliográficos
Ano de defesa: 2011
Autor(a) principal: Freitas, Luciana Secches de lattes
Orientador(a): Maniglia, José Victor lattes
Banca de defesa: Fernandes, Ana Regina Chinelato lattes, Marchi, Nely Silvia Aragão de lattes, Molina, Fernando Drimel lattes, Mattos, Luiz Carlos de lattes
Tipo de documento: Tese
Tipo de acesso: Acesso aberto
Idioma: por
Instituição de defesa: Faculdade de Medicina de São José do Rio Preto
Programa de Pós-Graduação: Programa de Pós-Graduação em Ciências da Saúde
Departamento: Medicina Interna; Medicina e Ciências Correlatas
País: BR
Palavras-chave em Português:
Palavras-chave em Inglês:
Área do conhecimento CNPq:
Link de acesso: http://bdtd.famerp.br/handle/tede/188
Resumo: Introduction: Serotonin is an important neurotransmitter in the central nervous system. It has been suggested that serotoninergic dysfunction mediates the pathophysiology of temporomandibular dysfunction (TMD). Polymorphisms in HTR2A gene can alter the number of receptors in the serotoninergic system, causing nociceptive pain and hyperalgesia in the TMD. Objective: The aim of this study is to determine the prevalence of the 102T-C polymorphism of HTR2A in patients with and without TMD. Casuistic and Method: This cross-sectional study examined 100 patients as index cases and 100 persons as controls, of both genders. DNA was extracted from peripheral blood leukocytes, and the site that encompassed the polymorphism was amplified by PCR-RFLP. Results: There were significantly more females among index cases compared with the control group (p<0.05). The CC genotype of the 102T-C polymorphism was more frequent in patients with TMD versus controls (OR: 2.25; CI 95%: 1.13-4.46; p<0.05). Conclusions: The 102T-C polymorphism of HTR2A gene is linked to TMD in the studied population.