{"id":9193,"date":"1995-01-01T00:00:00","date_gmt":"1995-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/1995\/01\/01\/metabolismo-intermediario-de-neuronas-astrocitos-y-sinaptosomas-detectado-por-resonancia-magnetica-nuclear-de-carbono-13\/"},"modified":"1995-01-01T00:00:00","modified_gmt":"1995-01-01T00:00:00","slug":"metabolismo-intermediario-de-neuronas-astrocitos-y-sinaptosomas-detectado-por-resonancia-magnetica-nuclear-de-carbono-13","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/quimica\/metabolismo-intermediario-de-neuronas-astrocitos-y-sinaptosomas-detectado-por-resonancia-magnetica-nuclear-de-carbono-13\/","title":{"rendered":"Metabolismo intermediario de neuronas, astrocitos y sinaptosomas detectado por resonancia magnetica nuclear de carbono-13."},"content":{"rendered":"<h2>Tesis doctoral de <strong>  Cruz Fernandez Casta\u00f1eda Fatima <\/strong><\/h2>\n<p>Se ha estudiado cuantitativamente el metabolismo de glucosa y otros sustratos en cultivos primarios de neuronas, astrocitos y preparaciones de sinaptosomas utilizando una combinacion de metodolog\u00edas de 13crmn y modelos matematicos del metabolismo. Se ha puesto un enfasis especial en la caracterizacion del sistema de reciclaje cerebral de piruvato. El consumo de glucosa, expresado en umol\/mg de proteina h, en cultivos primarios de neuronas o astrocitos, es similar al calculado para los compartimentos neuronal y glial en el cerebro intacto. El 65% del metabolismo cerebral de glucosa transcurre en las neuronas, principalmente en las terminaciones nerviosas y el resto en los astrocitos. En experimentos de seleccion de sustratos, las neuronas metabolizan mejor piruvato que glucosa. En neuronas existe una compartimentacion intracelular de glutamato, con un pool silente de este aminoacido que no intercambia marcaje con el ciclo tricarboxilico. El reciclaje de piruvato puede llevarse a cabo en neuronas, astrocitos y sinaptosomas. Los tres sistemas presentan actividad pepck; mientras que tan solo los astrocitos y los sinaptosomas, contienen actividad em. La actividad de estos enzimas es suficiente para mantener una contribucion alta del reciclaje de piruvato en los tres casos, sin embargo, esta ruta es indetectable in situ, sugiriendo la presencia in vivo de mecanismos de control de su actividad.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Metabolismo intermediario de neuronas, astrocitos y sinaptosomas detectado por resonancia magnetica nuclear de carbono-13.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Metabolismo intermediario de neuronas, astrocitos y sinaptosomas detectado por resonancia magnetica nuclear de carbono-13. <\/li>\n<li><strong>Autor:<\/strong>\u00a0  Cruz Fernandez Casta\u00f1eda Fatima <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Alcal\u00e1<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1995<\/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>esteller Cerd\u00e1n Garc\u00eda<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Jorgina Satr\u00fastegui Gil-delgado <\/li>\n<li>Pilar Santisteban Sanz (vocal)<\/li>\n<li>Guillermo Bodega Magro (vocal)<\/li>\n<li>Jaime Gili Planas (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Cruz Fernandez Casta\u00f1eda Fatima Se ha estudiado cuantitativamente el metabolismo de glucosa y otros sustratos en cultivos [&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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