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2014, Número S1

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Rev Med Inst Mex Seguro Soc 2014; 52 (S1)


Genética de la obesidad infantil

Peralta-Romero JJ, Gómez-Zamudio JH, Estrada-Velasco B, Karam-Araujo R, Cruz-Lópeza M

Idioma: Español
Referencias bibliográficas: 73
Paginas: 78-87
Archivo PDF: 180.59 Kb.


RESUMEN

La obesidad es uno de los principales problemas de salud a nivel mundial. Las cifras de sobrepeso y obesidad a edades tempranas han alcanzado niveles alarmantes y ubican a nuestro país en el primer lugar de obesidad infantil. En el desarrollo de la obesidad participan dos grandes factores, uno genético y otro ambiental. Desde la perspectiva de las alteraciones ambientales, tanto el sobrepeso como la obesidad resultan del desequilibrio en el balance energético: las personas ingieren mayor cantidad de energía de la que gastan. A pesar de que las personas vivan en el mismo ambiente obesógeno, no todos desarrollan obesidad; para que esto ocurra, se requiere de los factores genéticos. Esta revisión se enfoca en la descripción de las principales metodologías para la búsqueda de marcadores genéticos, así como los principales loci en genes candidatos, cuyos polimorfi smos de un solo nucleótido (SNP, por sus siglas en inglés) se encuentran asociados con la obesidad y sus comorbilidades en la población infantil, de lo cual resalta la asociación de estos genes en la población mexicana. El conocimiento de los marcadores genéticos asociados a la obesidad ayudará a comprender los mecanismos moleculares y fi siológicos, el fondo genético y las modifi caciones en el índice de masa corporal en la población mexicana. Esta información es de gran utilidad para el planteamiento de nuevas hipótesis en la búsqueda de nuevos biomarcadores que puedan ser utilizados de una manera predictiva y preventiva, así como para el desarrollo de nuevas estrategias terapéuticas.


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