{"id":89643,"date":"2001-02-04T00:00:00","date_gmt":"2001-02-04T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/influencia-del-plasma-seminal-en-la-funcionalidad-de-espermatozoides-ovinos-separacion-de-poblaciones-espermaticas-y-prediccion-de-la-capacidad-fertilizante\/"},"modified":"2001-02-04T00:00:00","modified_gmt":"2001-02-04T00:00:00","slug":"influencia-del-plasma-seminal-en-la-funcionalidad-de-espermatozoides-ovinos-separacion-de-poblaciones-espermaticas-y-prediccion-de-la-capacidad-fertilizante","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/quimica\/influencia-del-plasma-seminal-en-la-funcionalidad-de-espermatozoides-ovinos-separacion-de-poblaciones-espermaticas-y-prediccion-de-la-capacidad-fertilizante\/","title":{"rendered":"Influencia del plasma seminal en la funcionalidad de espermatozoides ovinos. separaci\u00f3n de poblaciones esperm\u00e1ticas y predicci\u00f3n de la capacidad fertilizante"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Rosaura P\u00e9rez P\u00e9 <\/strong><\/h2>\n<p>* la combinaci\u00f3n del m\u00e9todo de swin-up\/dextrano con la aglutinaci\u00f3n producida por la lectina de ricinus communis, permite la selecci\u00f3n de espermatozoides con alta motilidad, viabilidad y heterogeneidad.  * la criopreservaci\u00f3n de espermatozoides ovinos con diluyentes basados en tris y suplementados con una alta cantidad de yema de huevo, reduce significativamente la p\u00e9rdida de calidad esperm\u00e1tica asociada a este proceso. la adici\u00f3n de lactalb\u00famina bovina y vitamina e al diluyente criprotector, incrementa los valores de los par\u00e1metros de calidad en semen congelado\/descongelado.  * las prote\u00ednas del plasma seminal ovino son capaces de revertir y de proteger del da\u00f1o producido por el choque t\u00e9rmico por fr\u00edo sobre la membrana esperm\u00e1tica. La adsorci\u00f3n a la superficie celular restaura la integridad de la membrana da\u00f1ada.  * la inducci\u00f3n de la capacitaci\u00f3n en espermatozoides ovinos aumenta la fosforilaci\u00f3n en residuos de tirosina de prote\u00ednas de la membrana. El choque t\u00e9rmico por fr\u00edo produce un aumento de esta fosforilaci\u00f3n que corresponde, parcialmente, con el patr\u00f3n observado en c\u00e9lulas capacitadas. Las prote\u00ednas del plasma seminal inhiben este aumento de la fosforilaci\u00f3n asociado al cold-shock.  * la participaci\u00f3n en un sistema bif\u00e1sico formado por dextramo, polietilenglilcol y ficoll, y cargado con bromuro pot\u00e1sico, permite la separaci\u00f3n de poblaciones esperm\u00e1ticas enriquecidas en cromosomas x o y con alta variabilidad celular.  * la distribuci\u00f3n en contracorriente con centrifugaci\u00f3n se puede utilizar para estimar la capacidad fertilizante de una muestra seminal, teniendo en cuenta conjuntamente la heterogeneidad del perfil obtenido y la viabilidad celular recuperada tras el proceso.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Influencia del plasma seminal en la funcionalidad de espermatozoides ovinos. separaci\u00f3n de poblaciones esperm\u00e1ticas y predicci\u00f3n de la capacidad fertilizante<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Influencia del plasma seminal en la funcionalidad de espermatozoides ovinos. separaci\u00f3n de poblaciones esperm\u00e1ticas y predicci\u00f3n de la capacidad fertilizante <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Rosaura P\u00e9rez P\u00e9 <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Zaragoza<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 02\/04\/2001<\/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 Mu\u00ed\u00f1o Blanco<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: jos\u00e9 Folch pera <\/li>\n<li>teresa Paramio (vocal)<\/li>\n<li>Antonio L\u00f3pez sebasti\u00e1n (vocal)<\/li>\n<li>\u00c1lvaro Sanchez ferrer (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Rosaura P\u00e9rez P\u00e9 * la combinaci\u00f3n del m\u00e9todo de swin-up\/dextrano con la aglutinaci\u00f3n producida por la lectina [&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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