摘要:La fluorosis dental (FD) es la hipomineralización del esmalte dental causada por el aumento de la porosidad, cuya severidad se debe a una ingesta excesiva de flúor (F) con relación dosis-respuesta durante el desarrollo del esmalte. El objetivo del trabajo fue determinar la correlación de los polimorfismos rs810687 y rs411717 del gen colágeno tipo 1 alfa 2 ( COL1A2 ) con FD en niños mexicanos de 10 a 12 años, utilizando el Índice de Dean para establecer el grado de FD y PCR-HRM para la genotipificación de los polimorfismos. Se incluyeron 100 niños de 10.9 ± 0.78 años; las frecuencias alélicas y genotípicas encontradas fueron: G = 52.5%, A = 47.5%, G/G = 27.5%, G/A = 49.8%, A/A = 22.5%, C = 63.3%, T = 36.5%, C/C = 40.3%, C/T = 46.3%, T/T = 13.3% de los polimorfismos rs810687 y rs411717, respectivamente, con un coeficiente de correlación de Pearson r = – 0.017 ( p > 0.05) con FD. Los resultados mostraron que no existía correlación entre la FD y la presencia de los polimorfismos rs810687 y rs411717 del gen COL1A2.
其他摘要:Dental fluorosis (FD, for its achronym in spanish) is the hypomineralization of dental enamel caused by increased porosity, severity is due to an excessive intake of fluoride with a dose-response relationship during enamel development. The objective of this study was to determine correlation of rs810687 and rs411717 polymorphisms of ( colageno tipo 1 alfa 2 ) COL1A2 gene with FD in Mexican children aged 10 to 12 years, using Dean Index to estab- lish degree of FD and PCR-HRM for polymorphisms genotyping. We included 100 children of 10.9 ± 0.78 years; Allele and genotype frequencies found were: G = 52.5%, A = 47.5%, G/G = 27.5%, G/A = 49.8%, A/A = 22.5%, C = 63.3%, T = 36.5%, C/C = 40.3%, C/T = 46.3%, T/T = 13.3% of rs810687 and rs411717 polymorphisms respectively; with a Pearson corre- lation coefficient r = – 0.017 ( p > 0.05) with FD. Results showed that there was no correlation between FD and presence of rs810687 and rs411717 polymorphisms of the COL1A2 gene.