{"id":34579,"date":"1998-01-01T00:00:00","date_gmt":"1998-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/regulacion-del-eje-somatotropo-a-largo-plazo\/"},"modified":"1998-01-01T00:00:00","modified_gmt":"1998-01-01T00:00:00","slug":"regulacion-del-eje-somatotropo-a-largo-plazo","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-de-la-vida\/regulacion-del-eje-somatotropo-a-largo-plazo\/","title":{"rendered":"Regulacion del eje somatotropo a largo plazo."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Angel Perez Romero <\/strong><\/h2>\n<p>Es bien conocido que la ghrh estimula y la somatostatina (ss) inhibe la secreci\u00f3n de gh en la hip\u00f3fisis, pero esto es v\u00e1lido fundamentalmente a corto plazo. Siendo el crecimiento un proceso que dura meses en el animal de experimentaci\u00f3n y a\u00f1os en el hombre, nos interesa saber como es realmente la regulaci\u00f3n del eje somatotropo, responsable del control de dicho proceso, a largo plazo.  para ello se estudi\u00f3 el efecto de la administraci\u00f3n de ghrh y ss durante varias semanas en dos modelos experimentales: la rata y el cordero. La administraci\u00f3n de ghrh durante una semana no modific\u00f3 ninguno de los componentes hormonales del eje somatotropo de la rata macho. La rata hembra normal sin embargo si pareci\u00f3 responder mejor. El tratamiento con ghrh de forma cont\u00ednua durante 3 semanas activ\u00f3 la s\u00edntesis y secreci\u00f3n de gh, circunstancia que no se produjo tras la administraci\u00f3n puls\u00e1til del p\u00e9ptido. En ning\u00fan caso se alter\u00f3 la din\u00e1mica de crecimiento. La ss revirti\u00f3 el efecto de la ghrh cuando ambos p\u00e9ptidos se administraron conjuntamente. En el cordero, el tratamiento con inyecciones de ghrh activ\u00f3 la s\u00edntesis y secreci\u00f3n de gh, lo que no ocurri\u00f3 tras la administraci\u00f3n de ghrh de forma cont\u00ednua. En este animal, la acci\u00f3n de la ghrh parece ser predominante sobre la de la ss en la hip\u00f3fisis. Por otro lado, tambi\u00e9n se investig\u00f3 la administraci\u00f3n local de ghrh en altas dosis en tejidos extrahipofisarios, encontr\u00e1ndose que dicho p\u00e9ptido hipotal\u00e1mico es capaz de inducir la producci\u00f3n de gh en la gl\u00e1ndula submaxilar del rat\u00f3n.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Regulacion del eje somatotropo a largo plazo.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Regulacion del eje somatotropo a largo plazo. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Angel Perez Romero <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Complutense de Madrid<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1998<\/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>Carmen Arizanavarreta Ruiz<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Mar\u00eda  Monica De La Fuente Del Rey <\/li>\n<li>Jes\u00fas Devesa M\u00fagica (vocal)<\/li>\n<li>Asuncion Lopez-calderon Barreda (vocal)<\/li>\n<li>Enrique Aguilar Benitez De Lugo (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Angel Perez Romero Es bien conocido que la ghrh estimula y la somatostatina (ss) inhibe la secreci\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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