{"id":81951,"date":"2023-06-16T09:48:39","date_gmt":"2023-06-16T14:48:39","guid":{"rendered":"https:\/\/thecitizenfortheworld.com\/?p=81951"},"modified":"2023-06-16T09:48:39","modified_gmt":"2023-06-16T14:48:39","slug":"cientificos-crearon-embriones-humanos-sinteticos-por-primera-vez","status":"publish","type":"post","link":"https:\/\/thecitizenfortheworld.com\/?p=81951","title":{"rendered":"Cient\u00edficos crearon embriones humanos sint\u00e9ticos por primera vez"},"content":{"rendered":"

Los embriones creados se encuentran en la fase m\u00e1s temprana de desarrollo humano, por ende, no tiene ni coraz\u00f3n, ni cerebro.<\/p>\n

 <\/p>\n

Un equipo de cient\u00edficos de\u00a0Estados Unidos\u00a0<\/b>y\u00a0Reino Unido<\/b>\u00a0crearon por primera vez\u00a0embriones humanos sint\u00e9ticos\u00a0<\/b>utilizando\u00a0c\u00e9lulas madre<\/b>, sin necesidad de tener\u00a0\u00f3vulos\u00a0<\/b>ni\u00a0espermatozoides<\/b>, as\u00ed lo afirma el medio brit\u00e1nico\u00a0The Guardian.<\/i><\/p>\n

De acuerdo con los cient\u00edficos, este avance ayudar\u00e1 a comprender las\u00a0enfermedades gen\u00e9ticas\u00a0<\/b>o las causas de los\u00a0abortos espont\u00e1neos<\/b>. Sin embargo, por el momento, los embriones se asemejan a los de las primeras etapas del desarrollo humano. No tienen un coraz\u00f3n que late ni los comienzos de un cerebro, pero incluyen c\u00e9lulas que formar\u00edan la placenta, el saco vitelino y el propio embri\u00f3n.<\/p>\n

\u201cLa idea es que si realmente modelas el desarrollo embrionario humano normal utilizando c\u00e9lulas madre, puedes obtener una gran cantidad de informaci\u00f3n sobre c\u00f3mo comenzamos el desarrollo, lo que puede ir mal, sin tener que usar embriones en su fase temprana para la investigaci\u00f3n\u201d, afirm\u00f3 Robin Lovell-Badge, jefe de biolog\u00eda de c\u00e9lulas madre y gen\u00e9tica del desarrollo en el Instituto Francis Crick de Londres.<\/p>\n

Hasta ahora no se espera que, a corto plazo, estos embriones sint\u00e9ticos sean empleados cl\u00ednicamente. Adem\u00e1s, ser\u00eda ilegal implantarlos en el \u00fatero de una paciente. Tampoco est\u00e1 claro todav\u00eda si estas estructuras tienen el potencial de continuar madurando m\u00e1s all\u00e1 de las fases m\u00e1s tempranas de desarrollo.<\/p>\n

Los investigadores esperan que estos modelos de embriones den informaci\u00f3n sobre la \u201ccaja negra\u201d del desarrollo humano, el periodo posterior a los 14 d\u00edas despu\u00e9s de la fecundaci\u00f3n, que es el l\u00edmite acordado para que los cient\u00edficos cultiven y estudien en un laboratorio.<\/p>\n

Los embriones sint\u00e9ticos est\u00e1n confinados en tubos de ensayo, pues ser\u00eda ilegal implantar uno en un\u00a0\u00fatero<\/b>. Adem\u00e1s, investigaciones anteriores, hechos con c\u00e9lulas madre de ratones y monos, han demostrado que, incluso cuando los cient\u00edficos han intentado implantarlos, no sobreviven, probablemente porque a\u00fan no se ha descubierto c\u00f3mo replicar completamente las condiciones del\u00a0embarazo<\/b>.<\/p>\n

Los cient\u00edficos dicen que no est\u00e1 claro si la barrera para un desarrollo m\u00e1s avanzado es solo t\u00e9cnica o tiene una causa biol\u00f3gica. \u201cEso es muy dif\u00edcil de responder. Ser\u00e1 dif\u00edcil saber si hay un problema intr\u00ednseco con ellos o si es solo t\u00e9cnico\u201d, agreg\u00f3 Lovell-Badge.<\/p>\n

\n
\n
La creaci\u00f3n de estos embriones ha despertado diferentes opiniones. Para James Briscoe, director asociado de investigaci\u00f3n del Instituto Francis Crick, \u201ca diferencia de los embriones humanos procedentes de la fecundaci\u00f3n in vitro (FIV), donde existe un marco jur\u00eddico establecido, en la actualidad no existe una normativa clara que regule los modelos de embriones humanos derivados de c\u00e9lulas madre\u201d.<\/div>\n<\/div>\n<\/div>\n
<\/div>\n
Lovell- Badge reconoci\u00f3 que el avance preocupa a las personas, y afirm\u00f3 que, si en un futuro, la intenci\u00f3n es que estos modelos se parezcan mucho a los embriones normales, deben ser tratados de la misma manera por la ley.<\/div>\n
\n

La investigaci\u00f3n no ha sido publicada en ninguna revista cient\u00edfica, pero seg\u00fan la Dra. Magdalena Zernicka-Goetz, esta ya fue aceptada. El trabaj\u00f3 fue expuesto en la\u00a0Sociedad Internacional de Investigaci\u00f3n con C\u00e9lulas Madre<\/b> en Boston, por Zernicka-Goetz, catedr\u00e1tica de Biolog\u00eda e Ingenier\u00eda Biol\u00f3gica en CalTech y la Universidad de Cambridge.<\/p>\n

\u201cQueda mucho trabajo por hacer para determinar las similitudes y diferencias entre los embriones sint\u00e9ticos y los embriones que se forman a partir de la uni\u00f3n de un \u00f3vulo y un espermatozoide\u201d, dijo Roger Sturmey, investigador principal de Salud Materna y Fetal de la Universidad de Manchester (Reino Unido) a CNN.<\/p>\n

(Con informaci\u00f3n de El Espectador<\/em>)<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Los embriones creados se encuentran en la fase m\u00e1s temprana de desarrollo humano, por ende, no tiene ni coraz\u00f3n, ni cerebro.   Un equipo de cient\u00edficos de\u00a0Estados Unidos\u00a0y\u00a0Reino Unido\u00a0crearon por primera vez\u00a0embriones humanos sint\u00e9ticos\u00a0utilizando\u00a0c\u00e9lulas madre, sin necesidad de tener\u00a0\u00f3vulos\u00a0ni\u00a0espermatozoides, as\u00ed lo afirma el medio brit\u00e1nico\u00a0The Guardian. De acuerdo con los cient\u00edficos, este avance ayudar\u00e1 a […]<\/p>\n","protected":false},"author":1,"featured_media":81952,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_mi_skip_tracking":false},"categories":[6],"tags":[],"yoast_head":"\nCient\u00edficos crearon embriones humanos sint\u00e9ticos por primera vez - The citizen for the world<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/thecitizenfortheworld.com\/?p=81951\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cient\u00edficos crearon embriones humanos sint\u00e9ticos por primera vez - The citizen for the world\" \/>\n<meta property=\"og:description\" content=\"Los embriones creados se encuentran en la fase m\u00e1s temprana de desarrollo humano, por ende, no tiene ni coraz\u00f3n, ni cerebro.   Un equipo de cient\u00edficos de\u00a0Estados Unidos\u00a0y\u00a0Reino Unido\u00a0crearon por primera vez\u00a0embriones humanos sint\u00e9ticos\u00a0utilizando\u00a0c\u00e9lulas madre, sin necesidad de tener\u00a0\u00f3vulos\u00a0ni\u00a0espermatozoides, as\u00ed lo afirma el medio brit\u00e1nico\u00a0The Guardian. 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