{"id":139955,"date":"2026-01-12T17:50:21","date_gmt":"2026-01-12T17:50:21","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/papel-del-higado-en-el-flujo-intertisular-de-nitrogeno-durante-la-lactancia-estudios-in-vivo-e-in-vitro\/"},"modified":"2026-01-12T17:50:21","modified_gmt":"2026-01-12T17:50:21","slug":"papel-del-higado-en-el-flujo-intertisular-de-nitrogeno-durante-la-lactancia-estudios-in-vivo-e-in-vitro","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/quimica\/papel-del-higado-en-el-flujo-intertisular-de-nitrogeno-durante-la-lactancia-estudios-in-vivo-e-in-vitro\/","title":{"rendered":"Papel del higado en el flujo intertisular de nitrogeno durante la lactancia: estudios \u00abin vivo\u00bb e \u00abin vitro\u00bb"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Jose Garcia De La Asuncion <\/strong><\/h2>\n<p>Hemos demostrado \u00abin vivo\u00bb que el catabolismo de los aminoacidos esta disminuido durante la lactancia y que la disponibilidad hepatica de aminoacidos esta aumentada aunque la captacion de aminoacidos no aumento; confirmandose que existe un mecanismo de \u00abahorro\u00bb en la degradacion de aminoacidos durante la lactancia. Estudios \u00abin vitro\u00bb, con cultivos primarios de hepatocitos, demuestran que la velocidad de transporte de aminoacidos a traves de la membrana plasmatica durante la lactancia esta disminuida. Estos valores se correlacionen con una disminucion del cociente vmax\/km y una mayor actividad en los sistemas de transporte hepatico de aminoacidos a y l.  la adicion de prolactina al medio de cultivo de hepatocitos disminuye la velocidad de transporte del acido z-aminoisobutirico en las ratas virgenes, pero no afecta a la velocidad de transporte de la l-leucina. El transporte de acido z-aminoisobutirico en hepatocitos en cultivo es mayor en las ratas lactantes que tienen inhibida su secrecion de prolactina que en las ratas lactantes normales. Esto nos demuestra que la prolactina actua como una se\u00f1al en la relacion reciproca entre el higado y la glandula mamaria en el metabolismo de los aminoacidos.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Papel del higado en el flujo intertisular de nitrogeno durante la lactancia: estudios \u00abin vivo\u00bb e \u00abin vitro\u00bb<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Papel del higado en el flujo intertisular de nitrogeno durante la lactancia: estudios \u00abin vivo\u00bb e \u00abin vitro\u00bb <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Jose Garcia De La Asuncion <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Universitat de val\u00e9ncia (estudi general)<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1992<\/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>Juan Vi\u00f1a Ribes<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Jos\u00e9 Cabo Soler <\/li>\n<li>Eduardo Arilla Ferreiro (vocal)<\/li>\n<li>Jos\u00e9 Mar\u00eda Medina Jimenez (vocal)<\/li>\n<li>Manuel Palac\u00edn Prieto (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Jose Garcia De La Asuncion Hemos demostrado \u00abin vivo\u00bb que el catabolismo de los aminoacidos esta disminuido [&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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