{"id":4973,"date":"2011-02-08T22:58:00","date_gmt":"2011-02-08T22:58:00","guid":{"rendered":"http:\/\/www.osatzen.com\/blog-salud-comunidad\/2011\/02\/08\/la-cocaina-produce-cambios-geneticos-en-el-cerebro\/"},"modified":"2021-04-29T17:01:42","modified_gmt":"2021-04-29T15:01:42","slug":"la-cocaina-produce-cambios-geneticos-en","status":"publish","type":"post","link":"https:\/\/www.osatzen.com\/eu\/blogs\/la-cocaina-produce-cambios-geneticos-en\/","title":{"rendered":"LA COCAINA PRODUCE CAMBIOS GENETICOS EN EL CEREBRO"},"content":{"rendered":"<p><a href=\"https:\/\/www.osatzen.com\/blog-salud-comunidad\/wp-content\/uploads\/image-import\/_BxYwR9X1g-M\/TVHLR6CMHhI\/AAAAAAAAAPs\/Y8kIWBBOGPg\/s1600\/www_kinemoions_com.jpg\"><img decoding=\"async\" src=\"http:\/\/osatzen.com\/wp-content\/uploads\/2021\/04\/www_kinemoions_com.jpg\" border=\"0\" alt=\"\"><\/a><br \/>Estos cambios gen\u00e9ticos podr\u00edan influir en los cambios de conducta persistentes que se observan en los adictos a la coca\u00edna <br \/>El consumo frecuente de coca\u00edna desencadena cambios duraderos en genes que se expresan en una regi\u00f3n del cerebro asociada con la recompensa, seg\u00fan un estudio de la Escuela de Medicina del Monte Sina\u00ed en Nueva York (Estados Unidos). El trabajo se publica en la edici\u00f3n digital de la revista Proceedings of the National Academy of Sciences (PNAS).<br \/>Los autores examinaron marcadores gen\u00e9ticos, llamados marcadores de metilaci\u00f3n de histonas o H3K9me3, que son responsables del silenciamiento de la expresi\u00f3n de regiones de ADN entre los genes. Los modelos experimentales expuestos de forma repetida a la coca\u00edna expresaban menos marcadores H3K9me3 que los no expuestos y el efecto persist\u00eda incluso despu\u00e9s de que los se hubieran abstenido de la coca\u00edna durante una semana. <br \/>Despu\u00e9s del consumo de coca\u00edna, sin embargo, el n\u00famero de marcadores descubierto disminu\u00eda y los autores indicaron que algunas de las regiones de ADN anteriormente silentes en el centro de recompensa del cerebro, el n\u00facleo accumbens, se volv\u00edan activas.<br \/>Estos resultados subrayan la necesidad de m\u00e1s investigaciones para determinar si las regiones activadas de ADN influyen en el funcionamiento neuronal del n\u00facleo accumbens y si causan directamente la conducta adictiva.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Estos cambios gen\u00e9ticos podr\u00edan influir en los cambios de conducta persistentes que se observan en los adictos a la coca\u00edna El consumo frecuente de coca\u00edna desencadena cambios duraderos en genes que se expresan en una  [&#8230;]<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_eb_attr":"","footnotes":""},"categories":[353,480,481],"tags":[],"class_list":["post-4973","post","type-post","status-publish","format-standard","hentry","category-blog-salud-y-comunidad","category-cocaina-y-conducta","category-genes"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.3 (Yoast SEO v25.3) - 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