{"id":86224,"date":"2018-03-10T00:10:46","date_gmt":"2018-03-10T00:10:46","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/procesos-de-diferenciacion-y-de-muerte-celular-durante-el-desarrollo-del-sistema-visual-del-galapago-leproso-mauremys-leprosa\/"},"modified":"2018-03-10T00:10:46","modified_gmt":"2018-03-10T00:10:46","slug":"procesos-de-diferenciacion-y-de-muerte-celular-durante-el-desarrollo-del-sistema-visual-del-galapago-leproso-mauremys-leprosa","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/biologia-celular\/procesos-de-diferenciacion-y-de-muerte-celular-durante-el-desarrollo-del-sistema-visual-del-galapago-leproso-mauremys-leprosa\/","title":{"rendered":"Procesos de diferenciaci\u00f3n y de muerte celular durante el desarrollo del sistema visual del gal\u00e1pago leproso, mauremys leprosa"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Javier De Francisco Morcillo <\/strong><\/h2>\n<p>El an\u00e1lisis con bromodeoxiuridina y anticuerpo anti-pcna indican que el cese dela proliferaci\u00f3n en la retina sigue gradientes centro-perif\u00e9rico y dorso-ventral. En el estadio 22 no se detecta proliferaci\u00f3n en la regi\u00f3n dorso-central de la retina y en el estadio 24 no se detecta en la periferia. El patr\u00f3n de expresi\u00f3n de islet 1, calbindina, calretinina, gaba, vimentina y gfap indica que la maduraci\u00f3n de la retina sigue gradientes vitreo-escleral, centro-perif\u00e9rico y dorso-ventral. En la mayor\u00eda de los estadios se observa muerte celular en la retina. las caracter\u00edsticas estructurales y el marcaje con la t\u00e9cnica de tunel indican que las c\u00e9lulas degeneran por el proceso de apoptosis. En la capa de c\u00e9lulas ganglionares, la mayor intensidad de muerte tiene lugar entre los estadios 19 y 22, coincidiendo con el periodo de sinaptog\u00e9nesis. En las capas nuclear interna y nuclear externa, la apoptosis muestra una mayor intensidad en el estadio 20. En las capas nucleares, la muerte comienza en la zona central del cuadrante dorso-temporal de la retina y avanza siguiendo sentidos centro-perif\u00e9rico, dorso-ventral y temporo-nasal. Las c\u00e9lulas que degeneran en la retina son fagocitadas mayoritariamente por c\u00e9lulas neuroepiteliales en estadios j\u00f3venes y por c\u00e9lulas de m\u00ed\u00bcller en etapas m\u00e1s avanzadas del desarrollo. La expresi\u00f3n de vimentina y gfap se inicia en el nervio \u00f3ptico en el estadio 17. Posteriormente se extiende al quiasma y finalmente al tracto \u00f3ptico. Tanto en el nervio como en el quiasma la expresi\u00f3n sigue gradientes perif\u00e9rico-central y dorso-ventral. Fibras \u00f3pticas positivas para la prote\u00edna proteolip\u00eddica son detectas por primera vez en el estadio 24. La expresi\u00f3n aparece de forma simult\u00e1nea en las diferentes regiones de la v\u00eda \u00f3ptica.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Procesos de diferenciaci\u00f3n y de muerte celular durante el desarrollo del sistema visual del gal\u00e1pago leproso, mauremys leprosa<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Procesos de diferenciaci\u00f3n y de muerte celular durante el desarrollo del sistema visual del gal\u00e1pago leproso, mauremys leprosa <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Javier De Francisco Morcillo <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Extremadura<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 31\/07\/2000<\/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>Gervasio Mart\u00edn Partido<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Carlos L\u00f3pez Garc\u00eda <\/li>\n<li>pedro Fern\u00e1ndez salguero (vocal)<\/li>\n<li>julio Navascues Martinez (vocal)<\/li>\n<li>domingo Mac\u00edas rodr\u00edguez (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Javier De Francisco Morcillo El an\u00e1lisis con bromodeoxiuridina y anticuerpo anti-pcna indican que el cese dela proliferaci\u00f3n [&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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