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Rev. bras. mastologia ; 23(4): 113-116, out-dez 2013. tab
Article in Portuguese | LILACS-Express | LILACS | ID: lil-783159

ABSTRACT

Objetivo: Investigar a frequência do polimorfismo C3435T no gene MDR1 e sua associação com câncer de mama (CM) em mulheres de MT. Método: O estudo tem desenho epidemioló- gico descritivo e observacional do tipo caso-controle. Analisou-se o genótipo do polimorfismo C3435T no gene MDR1 a partir de sangue periférico; foram comparadas 201 pacientes com 177 controles. As pacientes foram mulheres portadoras de CM, as controles foram mulheres não portadoras de CM comprovado por exame clínico e mamografia. Os dados foram coletados por meio de entrevista com as mulheres, coleta de sangue para genotipagem e coleta de dados de prontuários médicos das pacientes. O projeto teve aprovação do Comitê de Ética em Pesquisa. Resultados: O polimorfismo C3435T no gene MDR1 teve distribuição semelhante entre as pacientes e as controles, sem diferença estatisticamente significativa entre as amostras. Conclusões: A frequência do polimorfismo C3435T do gene MDR1 é semelhante à encontrada na literatura. Não foi encontrada diferença estatisticamente significativa na frequência dos genótipos do polimorfismo C3435T no gene MDR1 entre as pacientes com CM e as controles. O polimorfismo também não apresentou associação com fatores prognósticos para o CM.


Objective: To investigate the frequency of the C3435T polymorphism in the MDR1 gene and its association with breast cancer (BC) in women of MT. Method: The study is descriptive and observational epidemiological case-control design. We analyzed the genotype of the C3435T polymorphism in the MDR1 gene in peripheral blood were compared in 201 patients with 177 controls. Patients were women with breast cancer, the controls were not women with BC confirmed by clinical examination and mammography. Data were collected through interviews with women, blood was collected for genotyping and data collection from medical records of patients. The project was approved by the Research Ethics Committee. Results: The C3435T polymorphism in the MDR1 gene had similar distribution between patients and controls with no statistically significant difference between samples. Conclusions: The frequency of C3435T polymorphism of MDR1 gene is similar to that found in the literature. We found no statistically significant difference in genotype frequency of C3435T polymorphism in the MDR1 gene among patients with BC and controls. The polymorphism also showed no association with prognosis for BC factors.

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