Nutrición y Epigenética: Modificaciones epigenéticas influenciadas por nutrimentos y su impacto en la salud y en el desarrollo de enfermedades
DOI:
https://doi.org/10.70983/hggfy898Palabras clave:
Epigenética , ADN, Histona, Nutrimentos, Enfermedades CrónicasResumen
Introducción: La epigenética estudia modificaciones hereditarias que regulan la expresión génica sin alterar el ADN, como la metilación, modificaciones de histonas y ARN no codificante. Estos mecanismos, influenciados por factores como la alimentación, impactan en el riesgo de enfermedades crónicas. El presente artículo tiene como objetivo ofrecer un panorama actualizado sobre el efecto de nutrientes específicos en los mecanismos epigenéticos y su relación con patologías como cáncer, diabetes y trastornos neurodegenerativos. Comprender esta interacción permitirá diseñar estrategias nutricionales preventivas y terapéuticas. Resultados: Nutrientes como el ácido fólico, metionina, colina, vitamina B12, polifenoles y omega-3 modulan procesos epigenéticos. El metabolismo C1, mediado por folatos, es clave para sintetizar grupos metilo, esenciales en la metilación del ADN; su deficiencia se asocia con hipometilación, defectos del tubo neural y desregulación metabólica. La metionina regula la producción de S-adenosilmetionina (SAM), vinculada a estabilidad genómica, y su restricción moderada reduce el crecimiento tumoral. Compuestos bioactivos (polifenoles, omega-3) inhiben enzimas como DNMT y HDAC, regulan microARN y activan sirtuinas (ej. resveratrol), promoviendo expresión génica protectora. Además, la interacción entre colina y microbiota intestinal influye en la conexión intestino-cerebro y trastornos neuropsiquiátricos. Conclusion: La nutrición influye en mecanismos epigenéticos, modulando la expresión génica y afectando el riesgo de enfermedades crónicas (cáncer, diabetes, etc.). Nutrientes y compuestos bioactivos en dietas equilibradas promueven salud epigenética. La nutrición personalizada, integrando investigación básica y clínica, junto con estrategias sostenibles y multidisciplinarias, optimiza intervenciones adaptadas a necesidades individuales.
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