{"id":1388,"date":"2020-11-21T09:16:55","date_gmt":"2020-11-21T15:16:55","guid":{"rendered":"http:\/\/losperiodistas.com.mx\/portal\/?p=1388"},"modified":"2020-11-21T09:16:55","modified_gmt":"2020-11-21T15:16:55","slug":"insertan-genes-humanos-en-fetos-de-tities-y-logran-que-les-aumente-el-cerebro","status":"publish","type":"post","link":"https:\/\/losperiodistas.com.mx\/portal\/insertan-genes-humanos-en-fetos-de-tities-y-logran-que-les-aumente-el-cerebro\/","title":{"rendered":"Insertan genes humanos en fetos de tit\u00edes y logran que les aumente el cerebro"},"content":{"rendered":"\n

Un pol\u00e9mico experimento de laboratorio se centr\u00f3 en la inserci\u00f3n de un gen humano en fetos de tit\u00edes<\/em><\/p>\n\n\n\n

RT<\/p>\n\n\n\n

Cient\u00edficos del Instituto Max Planck de Biolog\u00eda Celular Molecular y Gen\u00e9tica en Dresde (Alemania) junto con colegas del Instituto Central de Animales Experimentales en Kawasaki y la Universidad Keio en Tokio (Jap\u00f3n), realizaron un experimento con fetos de tit\u00edes inyect\u00e1ndoles un gen llamado ARHGAP11B<\/a><\/strong>, que dirige las c\u00e9lulas madre en el cerebro humano, y lograron que sus cerebros aumentaran en tama\u00f1o.<\/p>\n\n\n\n

\u00abDe hecho, descubrimos que el neoc\u00f3rtex del cerebro del tit\u00ed com\u00fan se agrand\u00f3 y la superficie del cerebro se pleg\u00f3\u00bb, dijo, citado por New York Post<\/a>, Michael Heide, autor del estudio, publicado en la revista Science<\/a> este julio y que plantea ciertas cuestiones \u00e9ticas sobre la ingenier\u00eda gen\u00e9tica. Los investigadores revelaron que los cerebros de los fetos pronto desarrollaron neoc\u00f3rtex m\u00e1s grandes y avanzados<\/strong>, un \u00e1rea que en los humanos constituye la mayor parte de la corteza cerebral.<\/p>\n\n\n\n

\"\"\/
Imagen microsc\u00f3pica de una secci\u00f3n a trav\u00e9s de un hemisferio cerebral de un feto de tit\u00ed modificado de 101 d\u00edasMichael Heide et al. \/ MPI-CBG<\/figcaption><\/figure>\n\n\n\n

\u00abLimitamos nuestros an\u00e1lisis a los fetos de tit\u00edes, porque anticipamos que la expresi\u00f3n de este gen humano espec\u00edfico afectar\u00eda el desarrollo del neoc\u00f3rtex en el tit\u00ed. A la luz de las posibles consecuencias imprevisibles<\/strong> con respecto a la funci\u00f3n cerebral posnatal, consideramos que es un requisito previo, y obligatorio desde un punto de vista \u00e9tico, determinar primero los efectos del ARHGAP11B en el desarrollo del neoc\u00f3rtex del tit\u00ed fetal\u00bb, dijo<\/a> el coautor del estudio, Wieland Huttner.<\/p>\n\n\n\n

\"Implantan<\/figure>\n\n\n\n

Implantan genes humanos en el cerebro a unos monos: estos fueron los cambios que sufrieron<\/a><\/p>\n\n\n\n

Como resultado, concluyeron\u00a0que\u00a0el gen ARHGAP11B, espec\u00edfico\u00a0de los humanos,\u00a0pudo haber causado la expansi\u00f3n del neoc\u00f3rtex<\/strong>\u00a0en el curso de la evoluci\u00f3n humana.\u00a0El neoc\u00f3rtex\u00a0humano,\u00a0una fracci\u00f3n del cerebro que juega un papel importante en los procesos del pensamiento, el lenguaje y la percepci\u00f3n, es\u00a0la parte evolutivamente m\u00e1s joven de la corteza cerebral, y en nuestra especie es aproximadamente tres veces m\u00e1s grande que\u00a0el de los chimpanc\u00e9s.<\/p>\n\n\n\n

Fuente: https:\/\/actualidad.rt.com\/actualidad\/374166-insertar-genes-humanos-fetos-tities-cerebro<\/p>\n","protected":false},"excerpt":{"rendered":"

Un pol\u00e9mico experimento de laboratorio se centr\u00f3 en la inserci\u00f3n de un gen humano en fetos de tit\u00edes RT Cient\u00edficos […]<\/p>\n","protected":false},"author":1,"featured_media":1389,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[8],"tags":[],"class_list":["post-1388","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-noticias"],"_links":{"self":[{"href":"https:\/\/losperiodistas.com.mx\/portal\/wp-json\/wp\/v2\/posts\/1388","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/losperiodistas.com.mx\/portal\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/losperiodistas.com.mx\/portal\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/losperiodistas.com.mx\/portal\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/losperiodistas.com.mx\/portal\/wp-json\/wp\/v2\/comments?post=1388"}],"version-history":[{"count":1,"href":"https:\/\/losperiodistas.com.mx\/portal\/wp-json\/wp\/v2\/posts\/1388\/revisions"}],"predecessor-version":[{"id":1390,"href":"https:\/\/losperiodistas.com.mx\/portal\/wp-json\/wp\/v2\/posts\/1388\/revisions\/1390"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/losperiodistas.com.mx\/portal\/wp-json\/wp\/v2\/media\/1389"}],"wp:attachment":[{"href":"https:\/\/losperiodistas.com.mx\/portal\/wp-json\/wp\/v2\/media?parent=1388"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/losperiodistas.com.mx\/portal\/wp-json\/wp\/v2\/categories?post=1388"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/losperiodistas.com.mx\/portal\/wp-json\/wp\/v2\/tags?post=1388"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}