{"id":145313,"date":"1993-01-01T00:00:00","date_gmt":"1993-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/el-desarrollo-cerebral-de-la-rata-estudio-del-factor-de-iniciacion-eif-2\/"},"modified":"1993-01-01T00:00:00","modified_gmt":"1993-01-01T00:00:00","slug":"el-desarrollo-cerebral-de-la-rata-estudio-del-factor-de-iniciacion-eif-2","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/quimica\/el-desarrollo-cerebral-de-la-rata-estudio-del-factor-de-iniciacion-eif-2\/","title":{"rendered":"El desarrollo cerebral de la rata: estudio del factor de iniciacion eif-2."},"content":{"rendered":"<h2>Tesis doctoral de <strong> M\u00aa Elena Mart\u00edn Palma <\/strong><\/h2>\n<p>Los resultados obtenidos se pueden resumir en los siguientes puntos:  1) hemos identificado por primera vez, en el cerebro de ratas lactantes y adultas, actividades eif-2 quinasas y fosfatasas. La actividad eif-2 quinasa basal es muy baja, se activa en presencia del calcio y fosfolipidos y parece ligeramente mayor en animales adultos. La actividad fosfatasa es menor en animales adultos aunque no significativamente.  2) fundamentalmente en cerebro de ratas adultas, hemos caracterizado una proteina denominada b2 que parece estar relacionada con la subunidad b del eif-2. El posible significado fisiologico de esta proteina precisa un estudio mas amplio.  3) la subunidad   del eif-2 no se encuentra fosforilada \u00abin vivo\u00bb, o lo esta en un porcentaje muy bajo. No parece probable que la fosforilacion del eif-2 desempe\u00f1e un papel importante en la disminucion de la sintesis de proteinas durante el desarrollo cerebral.  4) los niveles de eif-2 en la fraccion ribosomal de ratas lactantes son significativamente superiores a los de ratas adultas; por el contrario, los niveles de eif-2 en la fraccion citosolica no varian significativamente. La relacion eif-2\/rna en la fraccion ribosomal se mantiene constante a lo largo del desarrollo del cerebro.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>El desarrollo cerebral de la rata: estudio del factor de iniciacion eif-2.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 El desarrollo cerebral de la rata: estudio del factor de iniciacion eif-2. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 M\u00aa Elena Mart\u00edn Palma <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Aut\u00f3noma de Madrid<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1993<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Matilde Salinas Aracil<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Cecilio Gimenez Martin <\/li>\n<li>Jos\u00e9 Lopez-fando Juan (vocal)<\/li>\n<li>Emilio Herrera Castillon (vocal)<\/li>\n<li>Matilde S\u00e1nchez Ayuso (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de M\u00aa Elena Mart\u00edn Palma Los resultados obtenidos se pueden resumir en los siguientes puntos: 1) hemos identificado [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","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 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