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Psicofarmacologia (B. Aires) ; 10(60): 24-30, feb. 2010.
Article in Spanish | LILACS | ID: lil-565553

ABSTRACT

Cuando hablamos de epigenética nos referimos a los fenómenos que regulan la expresión génica sin afectar la secuencia del ADN. La epigénesis representa, en definitiva, un mecanismo para el almacenamiento de información. Las consecuencias a largo plazo de las experiencias ambientales tempranas en el desarrollo han sido extensamente exploradas en modelos animales. Estos cambios neuroquímicos y comportamentales se hallan estrechamente vinculados a mecanismos epigenéticos. En este artículo se revisa la evidencia sobre la influencia en el epigenoma de la interacción ambiente-gen y las implicancias de tales efectos epigenéticos sobre la salud mental humana. La comprensión del concepto epigénesis, entonces, nos permite conceptualizar, evaluar, prevenir e intervenir tanto de manera farmacológica como no farmacológica en las enfermedades psiquiátricas e interrumpir la transmisión de ciertas patologías a través de las generaciones.


Epigenetics refers to the phenomena regulating gene expression without affecting the DNA sequence. Epigenetics, therefore, represents a mechanism for the storage of information. The long-term effects of early environmental experiences on development have been widely assessed in animal models. These neurochemical and behavioral changes are closely connected with epigenetic mechanisms. This article provides a review of the evidence concerning the influence of the gene-environment interaction on the epigenome, as well as the implications of such epigenetic effects for human mental health. Understanding the concept of epigenetics, therefore, allows us to conceptualize, evaluate, prevent and to intervene both pharmacologically and not pharmacologically in psychiatric diseases, as well as to stop the transmission of certain pathologies accross generations.


Subject(s)
Humans , Epigenesis, Genetic , Chromatin Assembly and Disassembly/genetics , Gene Expression , Histone Code , Mental Health , Psychiatry , RNA Interference
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