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Intron 4 VNTR (4a/b) Polymorphism of the Endothelial Nitric Oxide Synthase Gene Is Associated with Breast Cancer in Mexican Women
Journal of Korean Medical Science ; : 1587-1594, 2013.
Artículo en Inglés | WPRIM | ID: wpr-148472
ABSTRACT
The endothelial nitric oxide synthase (eNOS) gene plays an important role in several biological functions. Polymorphisms of the eNOS gene have been associated with cancer. It has been suggested that the VNTR 4 a/b polymorphism may affect the expression of eNOS and contributes to tumor promotion in the mammary gland. We examined the role of the eNOS4 a/b polymorphism by comparing the genotypes of 281 healthy Mexican women with the genotypes of 429 Mexican women with breast cancer (BC). The observed genotype frequencies for control and BC patients were 0.6% and 0.7% for a/a (polymorphic); 87% and 77% for a/a (wild type); and 12% and 22% for a/b respectively. We found that the odds ratio (OR) was 1.9, with a 95% confidence interval (95%CI) of 1.29-2.95, P = 0.001 for genotypes a/a-a/b, b/c. The association was also evident when comparing the distribution of the a/a-a/b genotypes in patients with high levels of glutamate-oxaloacetate transaminase (SGOT) (OR, 1.93; 95% CI, 1.14-3.28; P = 0.015); undergoing menopause with high levels of SGOT (OR, 2.0; 95% CI, 1.1-3.84); and with high levels of glutamic-pyruvic transaminase (SGPT) (OR, 3.5; 95% CI, 1.56-8.22). The genotypes a/a-a/b are associated with BC susceptibility in the analyzed samples from the Mexican population.
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Texto completo: Disponible Índice: WPRIM (Pacífico Occidental) Asunto principal: Aspartato Aminotransferasas / Neoplasias de la Mama / Predisposición Genética a la Enfermedad / Polimorfismo de Nucleótido Simple / Alanina Transaminasa / Óxido Nítrico Sintasa de Tipo III / Frecuencia de los Genes / Genotipo / México / Óxido Nítrico Límite: Adulto / Femenino / Humanos País/Región como asunto: México Idioma: Inglés Revista: Journal of Korean Medical Science Año: 2013 Tipo del documento: Artículo

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Texto completo: Disponible Índice: WPRIM (Pacífico Occidental) Asunto principal: Aspartato Aminotransferasas / Neoplasias de la Mama / Predisposición Genética a la Enfermedad / Polimorfismo de Nucleótido Simple / Alanina Transaminasa / Óxido Nítrico Sintasa de Tipo III / Frecuencia de los Genes / Genotipo / México / Óxido Nítrico Límite: Adulto / Femenino / Humanos País/Región como asunto: México Idioma: Inglés Revista: Journal of Korean Medical Science Año: 2013 Tipo del documento: Artículo