{"id":61731,"date":"2007-04-12T00:00:00","date_gmt":"2007-04-12T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/analisis-funcion-y-aplicaciones-biotecnologicas-de-las-protea%c2%adnas-del-plasma-seminal-de-porcino-psp-i-y-psp-ii\/"},"modified":"2007-04-12T00:00:00","modified_gmt":"2007-04-12T00:00:00","slug":"analisis-funcion-y-aplicaciones-biotecnologicas-de-las-protea%c2%adnas-del-plasma-seminal-de-porcino-psp-i-y-psp-ii","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/reproduccion-animal\/analisis-funcion-y-aplicaciones-biotecnologicas-de-las-protea%c2%adnas-del-plasma-seminal-de-porcino-psp-i-y-psp-ii\/","title":{"rendered":"An\u00e1lisis, funci\u00f3n y aplicaciones biotecnol\u00f3gicas de las prote\u00ednas del plasma seminal de porcino psp-i y psp-ii"},"content":{"rendered":"<h2>Tesis doctoral de <strong>  Garcia Hern\u00e1ndez Eva Mar\u00eda <\/strong><\/h2>\n<p>En los \u00faltimos a\u00f1os se han producido grandes avances en el desarrollo de nuevas biotecnolog\u00edas esperm\u00e1ticas. Entre estas t\u00e9cnicas destacan la criopreservaci\u00f3n esperm\u00e1tica y la separaci\u00f3n de espermatozoides x e y mediante citometr\u00eda de flujo. Sin embargo, la aplicaci\u00f3n pr\u00e1ctica en la especia porcina de la separaci\u00f3n esperm\u00e1tica por citoemmetr\u00eda de flujo  presenta ciertas limitaciones.   en el plasma seminal de verraco existe una prote\u00edna denominada heterod\u00edmero psp-i\/psp-ii,  perteneciente a la familia de las espermadhesinas, que in vitro ejerce un efecto protector sobre la funcionalidad esperm\u00e1tica en espermatozoides de verraco altamente diluidos.  Al estudiar en mayor profundidad su mecanismo de acci\u00f3n, se observ\u00f3 que las subunidades psp-i y psp-ii que forman dicho heterod\u00edmero, ejercen diferentes actividades sobre las caracter\u00edsticas funcionales esperm\u00e1ticas. M\u00e1s a\u00fan, la capacidad de proteger a los espermatozoides parece residir en su subunidad psp-ii y, concretamente, en su fracci\u00f3n pept\u00eddica.  por otro lado, cabe destacar que ambas subunidades est\u00e1n expresadas  en diferentes tejidos del tracto genital del verraco. Aunque la gl\u00e1ndula vesical es la pricipal fuente de producci\u00f3n de estas prote\u00ednas, tanto el epitelio semin\u00edfero,  como los segmentos epididimales y la gl\u00e1ndula bulbouretral participan tambi\u00e9n en la expresi\u00f3n de psp-i y psp-ii. se ha visto que el plasma seminal que compone las distintas fracciones en las que se divide el eyaculado del verraco ejerce distintos efectos sobre la funcionalidad de espermatozoides sometidos a elevadas diluciones. La raz\u00f3n de la variabilidad en el efecto que ejerce el plasma seminal sobre estos espermatozoides podr\u00eda estar debida a la variaci\u00f3n en el perfil proteico y concentraci\u00f3n proteica que muestran cada una de las fracciones.  A este respecto, se observ\u00f3 que la concentraci\u00f3n del heterod\u00edmero psp-i\/psp-ii variaba a lo largo de dichas fracciones. con el fin de valorar la posible<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>An\u00e1lisis, funci\u00f3n y aplicaciones biotecnol\u00f3gicas de las prote\u00ednas del plasma seminal de porcino psp-i y psp-ii<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 An\u00e1lisis, funci\u00f3n y aplicaciones biotecnol\u00f3gicas de las prote\u00ednas del plasma seminal de porcino psp-i y psp-ii <\/li>\n<li><strong>Autor:<\/strong>\u00a0  Garcia Hern\u00e1ndez Eva Mar\u00eda <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Murcia<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 04\/12\/2007<\/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>Juan  Mar\u00eda Vazquez Rojas<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal:  Illera Del Portal Mar\u00eda Jos\u00e9 <\/li>\n<li>Jos\u00e9 \u00e1lvaro Cebri\u00e1n P\u00e9rez (vocal)<\/li>\n<li>Luis Anel Rodr\u00edguez (vocal)<\/li>\n<li> Ferreira Dias Gra\u00ed\u00a7a Mar\u00eda  L (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Garcia Hern\u00e1ndez Eva Mar\u00eda En los \u00faltimos a\u00f1os se han producido grandes avances en el desarrollo de [&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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