{"id":71172,"date":"2004-11-11T00:00:00","date_gmt":"2004-11-11T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/receptores-de-melatonina-en-el-anuro-rama-perezi-caracterizacion-localizacion-regulacion-por-factores-ambientales-y-ontogenia\/"},"modified":"2004-11-11T00:00:00","modified_gmt":"2004-11-11T00:00:00","slug":"receptores-de-melatonina-en-el-anuro-rama-perezi-caracterizacion-localizacion-regulacion-por-factores-ambientales-y-ontogenia","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-de-la-vida\/receptores-de-melatonina-en-el-anuro-rama-perezi-caracterizacion-localizacion-regulacion-por-factores-ambientales-y-ontogenia\/","title":{"rendered":"Receptores de melatonina en el anuro rama perezi: caracterizaci\u00f3n, localizaci\u00f3n, regulaci\u00f3n por factores ambientales y ontogenia."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Esther Isorna Alonso <\/strong><\/h2>\n<p>El estudio de los receptores de melatonina es b\u00e1sico para entender c\u00f3mo esta hormona ejerce sus efectos. En los \u00faltimos a\u00f1os se ha desarrollado el estudio en vertebrados mam\u00edferos, sin embargo en otros grupos de vertebrados, los  i trabajossobrereceptoresde melatornnason escasos.El objetivogeneralde la presentetesisdoctoral,fue e! Estudio de los receptoresde melatoninaen el anfibio anuro rana perezi,comouna aproximaci\u00f3na la comprensi\u00f3nde d\u00f3nde  y c\u00f3mo act\u00faa esta hormona.  mediante ensayos de radioligando, hemos caracterizado un \u00fanico sitio de uni\u00f3n a melatornna en la retina y el enc\u00e9falo de rana perezi, que cumple todos los requisitos para ser considerado un aut\u00e9ntico receptor del tipo mel 1.  la distribuci\u00f3n de los sitios de uni\u00f3n a melatonina estudiada con autorradiografias, es muy aj.Dpliaen todo en enc\u00e9falo de rana perezi. Estos resultados apoyan la hip\u00f3tesis de que la melatonina puede actuar como un  neuromodulador en todo el cerebro, aunque su efecto principalmente es en v\u00edas relacionadas con la integraci\u00f3n de la infonnaci\u00f3n visual y en n\u00facleos diencef\u00e1licoshipotal\u00e1micos,donde probablementeejerce una funci\u00f3n como  regulador endocrino. Adem\u00e1s, hemos clonado un fragmento de! Receptor mella a partir del techo \u00f3tico de rana perezi, que nos ha permitido localizar su expresi\u00f3n a \u00c2\u00a1\u00favel central en el telenc\u00e9falo, techo \u00f3ptico e hipot\u00e1lamo. la  expresi\u00f3n m\u00e1s importante se encuentra a rnvelde techo \u00f3ptico y en el hipot\u00e1laj.Do,reforzando los resultados obterndos en las autorradiografias y la idea del importante papel que la melatonina ejerce a nivel central modulando la  sensibilidad visual, as\u00ed como funciones neuroendocrinas mediante su acci\u00f3n en el hipot\u00e1lamo.  tambi\u00e9n los tejidos perif\u00e9ricos de r. Perezi, poseen receptores de melatonina pero con m\u00e1s baja densidad, indicando que en rana perezi, la melatonina ejerce sus acciones adem\u00e1s de a nivel central a rnvel perif\u00e9rico. En el enc\u00e9<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Receptores de melatonina en el anuro rama perezi: caracterizaci\u00f3n, localizaci\u00f3n, regulaci\u00f3n por factores ambientales y ontogenia.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Receptores de melatonina en el anuro rama perezi: caracterizaci\u00f3n, localizaci\u00f3n, regulaci\u00f3n por factores ambientales y ontogenia. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Esther Isorna Alonso <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Complutense de Madrid<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 11\/11\/2004<\/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> Alonso G\u00f3mez Angel Luis<\/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>Jos\u00e9 Antonio Mu\u00f1oz cueto (vocal)<\/li>\n<li>jack Falcon (vocal)<\/li>\n<li> Miguez miramonte Jes\u00fas Manuel (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Esther Isorna Alonso El estudio de los receptores de melatonina es b\u00e1sico para entender c\u00f3mo esta hormona 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