{"id":24751,"date":"2018-03-09T09:15:50","date_gmt":"2018-03-09T09:15:50","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/mejora-de-la-obtencion-de-ovocitos-y-su-evaluacion-metabolica-para-los-programas-de-fecundacion-in-vitro-de-la-especie-ovina\/"},"modified":"2018-03-09T09:15:50","modified_gmt":"2018-03-09T09:15:50","slug":"mejora-de-la-obtencion-de-ovocitos-y-su-evaluacion-metabolica-para-los-programas-de-fecundacion-in-vitro-de-la-especie-ovina","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/leon\/mejora-de-la-obtencion-de-ovocitos-y-su-evaluacion-metabolica-para-los-programas-de-fecundacion-in-vitro-de-la-especie-ovina\/","title":{"rendered":"Mejora de la obtenci\u00f3n de ovocitos y su evaluaci\u00f3n metab\u00f3lica para los programas de fecundaci\u00f3n in vitro de la especie ovina"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Cristina Rodr\u00edguez Concha <\/strong><\/h2>\n<p>La producci\u00f3n in vitro de embriones presenta m\u00faltiples ventajas y su \u00e9xito depende en parte de la eficiencia en los m\u00e9todos de obtenci\u00f3n de ovocitos o la mejora de los m\u00e9todos de selecci\u00f3n de ovocitos. Para optimizar las t\u00e9cnicas de obtenci\u00f3n de ovocitos se estudiaron, en postmortem, el dispositivo de aspiraci\u00f3n, la eficacia de la aspiraci\u00f3n selectiva por tama\u00f1o folicular y la capacidad de desarrollo in vitro de ovocitos procedentes de distintos tama\u00f1os de fol\u00edculo.  adem\u00e1s se estudi\u00f3 la eficacia de distintas t\u00e9cnicas de abordaje laparosc\u00f3pico (obtenci\u00f3n in vivo) que variaban en el n\u00famero de punciones abdominales, as\u00ed como la aspiraci\u00f3n selectiva por tama\u00f1o de fol\u00edculo in vivo. Con el bojeto de mejorar la selecci\u00f3n de ovocitos se realiz\u00f3 un estudio morfol\u00f3gico y morfom\u00e9trico de los ovocitos y pruebas de metabolismo celular mediante marcaje con is\u00f3topos radiactivos. El dispositivo de aspiraci\u00f3n que obtiene el mayor n\u00famero de ovocitos de buena calidad respecto a los fol\u00edculos puncionados (40-50%) es de flujos de aspiraci\u00f3n bajos (10-20 ml\/min) y conducciones de grosor fino (1 mm de di\u00e1metro interno), no importando el calibre de la aguja. Los ovocitos de fol\u00edculos mediantos (3-5 mm di\u00e1metro) y grandes (&gt;5 mm di\u00e1metro) tienen mejor calidad morfol\u00f3gica (ovocitos v\u00e1lidos\/100 fol\u00edculos puncionados: 27,42 y 63% para fol\u00edculos peque\u00f1os, medianos y grandes, respectivamente) y tasas de maduraci\u00f3n superiores que los fol\u00edculos de tama\u00f1o peque\u00f1o (75,83 y 86% en fol\u00edculos peque\u00f1os, medianos y grandes, respectivamente).  la t\u00e9cnica ideal seg\u00fan el n\u00famero de punciones abdominales para el acceso laparosc\u00f3pico en funci\u00f3n del n\u00famero de ovocitos respecto a fol\u00edculos reales (45,7%) y de los tiempos de aspiraci\u00f3n por fol\u00edculo (26,2 segundo) es la que utiliza tres punciones. Los valores obtenidos para una, dos y cuatro punciones son 16,9, 36,3 y 38,6% ovocitos respecto a fol\u00edculos presentes en el ovari<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Mejora de la obtenci\u00f3n de ovocitos y su evaluaci\u00f3n metab\u00f3lica para los programas de fecundaci\u00f3n in vitro de la especie ovina<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Mejora de la obtenci\u00f3n de ovocitos y su evaluaci\u00f3n metab\u00f3lica para los programas de fecundaci\u00f3n in vitro de la especie ovina <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Cristina Rodr\u00edguez Concha <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Le\u00f3n<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 15\/07\/2003<\/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> Paz Cabello Paulino De<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: cesar angel Chamorro alvarez <\/li>\n<li>Jos\u00e9 Juli\u00e1n Garde lopez-brea (vocal)<\/li>\n<li>Juan  Mar\u00eda Vazquez rojas (vocal)<\/li>\n<li> Olmedo olmedo Juan  Antonio (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Cristina Rodr\u00edguez Concha La producci\u00f3n in vitro de embriones presenta m\u00faltiples ventajas y su \u00e9xito depende en [&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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