2001, Número 4
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Rev Salud Publica Nutr 2001; 2 (4)
Evaluación clínica, bioquímica y molecular de una familia con recurrencia de defectos del tubo neural
Martínez VRT, Rojas MA, Sánchez HJG, Hernández TU, Delgado EI, Ortíz LR
Idioma: Español
Referencias bibliográficas: 41
Paginas:
Archivo PDF: 275.75 Kb.
RESUMEN
Se presenta una familia originaria del sur de Nuevo León con recurrencia de defectos del tubo neural (DTN) cuyos productos sobrevivientes se han logrado después del tratamiento pre-concepcional con folato. Después de las evaluaciones clínicas, bioquímicas y moleculares, se encuentra que los miembros presentan heterocigocidad para la mutación MTHFR 677T y que la madre y la hija son heterocigotas compuestas 677C/677T–1298A/1298C. Los niveles de folatos intraeritrocitarios y plasmáticos son normales y sólo el padre presenta niveles levemente incrementados de homocisteinemia. Estos resultados sugieren una interacción entre factores genéticos y nutricionales previamente implicados en la patogénesis de los DTN que podrían estar asociados adicionalmente a la recurrencia de este cuadro malformativo.
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