{"id":1654,"date":"1994-01-01T00:00:00","date_gmt":"1994-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/1994\/01\/01\/regulacion-del-transportador-de-nucleosidos-por-proteinas-kinasas-en-celulas-cromafines-de-medula-adrenal-bovina\/"},"modified":"1994-01-01T00:00:00","modified_gmt":"1994-01-01T00:00:00","slug":"regulacion-del-transportador-de-nucleosidos-por-proteinas-kinasas-en-celulas-cromafines-de-medula-adrenal-bovina","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/quimica\/regulacion-del-transportador-de-nucleosidos-por-proteinas-kinasas-en-celulas-cromafines-de-medula-adrenal-bovina\/","title":{"rendered":"Regulacion del transportador de nucleosidos por proteinas kinasas en celulas cromafines de medula adrenal bovina."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Raquel Perez Sen <\/strong><\/h2>\n<p>El transporte de adenosina en celulas cromafines de la medula adrenal esta regulado por un amplio conjunto de se\u00f1ales extra e intracelulares. Los secretagogos, los agonistas p2y y la bradiquinina, inhibian el transporte de adenosina de manera muy significativa, que se reflejaba en una disminucion de la vmax del transporte, sin cambios aparentes en la afinidad (km). Estos efectos estaban mediados por un aumento en el ca2+ citosolico y la activacion de la proteina kinasa c. La activacion de la proteina kinasa a tambien inhibia el transporte de adenosina. Por el contrario, la estimulacion de los receptores de adenosina a2b, que activaban una proteina fosfatasa, soluble, aumentaban el transporte de adenosina. La activacion o inhibicion del transporte iba paralela a un aumento o disminucion en el numero de transportadores a nivel de la membrana plasmatica. Estos resultados sugieren que el transportador de adenosina esta controlado por procesos de fosforilacion-defosforilacion a traves de proteinas kinasas y fosfatasas. En cambio, el transporte de adenosina en celulas endoteliales de la medula adrenal no esta regulado por ninguna de las se\u00f1ales intra o extracelulares que son de relevancia fisiologica en estas celulas.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Regulacion del transportador de nucleosidos por proteinas kinasas en celulas cromafines de medula adrenal bovina.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Regulacion del transportador de nucleosidos por proteinas kinasas en celulas cromafines de medula adrenal bovina. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Raquel Perez Sen <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Complutense de Madrid<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1994<\/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>Mar\u00eda  Teresa Miras Portugal<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Manuel Roman Benito De Las Heras <\/li>\n<li>Manuel Palac\u00edn Prieto (vocal)<\/li>\n<li>Cecilio Gimenez Martin (vocal)<\/li>\n<li>Manuel Ros Perez (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Raquel Perez Sen El transporte de adenosina en celulas cromafines de la medula adrenal esta regulado por [&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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