{"id":37751,"date":"1998-01-01T00:00:00","date_gmt":"1998-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/efectos-de-la-criptorquidia-espontanea-abdominal-sobre-la-calidad-espermatica-y-la-estructura-testicular-de-machos-porcinos-postpuberales\/"},"modified":"1998-01-01T00:00:00","modified_gmt":"1998-01-01T00:00:00","slug":"efectos-de-la-criptorquidia-espontanea-abdominal-sobre-la-calidad-espermatica-y-la-estructura-testicular-de-machos-porcinos-postpuberales","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-de-la-vida\/efectos-de-la-criptorquidia-espontanea-abdominal-sobre-la-calidad-espermatica-y-la-estructura-testicular-de-machos-porcinos-postpuberales\/","title":{"rendered":"Efectos de la criptorquidia espontanea abdominal sobre la calidad espermatica y la estructura testicular de machos porcinos postpuberales."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Elisabet Pinart Nadal <\/strong><\/h2>\n<p>Para este estudio se utilizaron machos porcinos sanos (grupo control), machos porcinos con criptorquidia abdominal y unilateral y machos porcinos con criptorquidia bilateral.  en los machos criptorqu\u00eddicos unilaterales se observa, a partir del estudio de la calidad esperm\u00e1tica de los eyaculados, una reducci\u00f3n significativa del volumen total del eyaculado, de la concentraci\u00f3n esperm\u00e1tica y de la motilidad esperm\u00e1tica; la vitalidad y la morfolog\u00eda esperm\u00e1tica no difiere de los machos sanos. A pesar que la frecuencia de espermatozoides aberrantes es similar a la de los machos sanos, se observa un incremento de la frecuencia de espermatozoides con anomal\u00edas primarias y un cambio en los tipos y las frecuencias de las anomal\u00edas primarias y secundarias presentes en el eyaculado de los machos criptorqu\u00eddicos unilaterales. Estas alteraciones se atribuyen a la falta de producci\u00f3n esperm\u00e1tica del test\u00edculo abdominal y al efecto delet\u00e9reo que \u00e9ste produce sobre la actividad del test\u00edculo y el epid\u00eddimo escrotales. La criptorqu\u00eddia espont\u00e1nea abdominal y bilateral provoca la esterilidad de los machos porcinos adultos.  a nivel testicular, la criptorquidia unilateral y bilateral determina importantes alteraciones en la estructura y la ultraestructura de los test\u00edculos abdominales. As\u00ed, se observa una reducci\u00f3n importante del peso y el volumen testiculares y una reducci\u00f3n significativa del di\u00e1metro de los tubos semin\u00edferos, que se manifiesta asociada a alteraciones ultraestructurales en las c\u00e9lulas de sertoli, la regresi\u00f3n de la poblaci\u00f3n de c\u00e9lulas germinales y el engrosamiento de la l\u00e1mina propia; en el tejido intersticial, m\u00e1s desarrollado, destaca la regresi\u00f3n de la poblaci\u00f3n de las c\u00e9lulas de leydig, las cu\u00e1les presentan una morfolog\u00eda at\u00edpica.  estas alteraciones se deben a anomal\u00edas en el proceso de maduraci\u00f3n prepuberal de las c\u00e9lulas de sertoli, las c\u00e9lulas de leydig y las c\u00e9lulas peritubula<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Efectos de la criptorquidia espontanea abdominal sobre la calidad espermatica y la estructura testicular de machos porcinos postpuberales.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Efectos de la criptorquidia espontanea abdominal sobre la calidad espermatica y la estructura testicular de machos porcinos postpuberales. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Elisabet Pinart Nadal <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Girona<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1998<\/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>Sergi Bonet Marull<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Jos\u00e9 Egozcue Cuixart <\/li>\n<li>Gregorio Garc\u00eda Herdugo (vocal)<\/li>\n<li>Merce Durfort Coll (vocal)<\/li>\n<li>Margarida Casadevall Mas\u00f3 (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Elisabet Pinart Nadal Para este estudio se utilizaron machos porcinos sanos (grupo control), machos porcinos con criptorquidia [&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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