{"id":30824,"date":"2018-03-09T09:24:37","date_gmt":"2018-03-09T09:24:37","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/efecto-de-la-edad-en-las-anomala%c2%adas-cromosomicas-del-espermatozoide-humano\/"},"modified":"2018-03-09T09:24:37","modified_gmt":"2018-03-09T09:24:37","slug":"efecto-de-la-edad-en-las-anomala%c2%adas-cromosomicas-del-espermatozoide-humano","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/efecto-de-la-edad-en-las-anomala%c2%adas-cromosomicas-del-espermatozoide-humano\/","title":{"rendered":"Efecto de la edad en las anomal\u00edas cromos\u00f3micas del espermatozoide humano"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Mercedes Bosch Gonz\u00e1lez <\/strong><\/h2>\n<p>El objetivo primordial de \u00e9ste estudio de tesis doctoral fue intentar hallar si exist\u00eda una asociaci\u00f3n, en espermatozoide humano en relaci\u00f3n con la edad del individuo, respecto de:  1,- la incidencia de diploid\u00eda, disom\u00eda para los cromosomas sexuales, y disom\u00eda para los cromosomas 6, 9 y 21.  2,- la incidencia de anomal\u00edas estructurales del cromosoma 9.  3,- el ratio sexual en espermatozoides normales y portadores de una anomal\u00eda num\u00e9rica para los cromosomas 6, 9 y 21 \u00f3 para cualquier anomal\u00eda estructural del cromosoma 9.  se emple\u00f3 la t\u00e9cnica de hibridaci\u00f3n in situ fluorescente (fish) simult\u00e1neamente, con sondas de dna espec\u00edficas para la regi\u00f3n subtelom\u00e9rica 9q (9qter), las regiones centrom\u00e9ricas para los cromosomas 6, 9, 21 y x, y una sonda para la regi\u00f3n sat\u00e9lite iii del brazo largo del cromosoma y, en muestras de semen procedente de 18 individuos normales sin historial de exposici\u00f3n a mut\u00e1genos o drogas, de edades comprendidas entre los 24 y los 74 a\u00f1os (media = 48,8 a\u00f1os). Se analizaron un total de 384.141 espermatozoides, contabilizando un m\u00ednimo de 10.000 espermatozoides por cada donante.  nuestros resultados indican un incremento lineal significativo del nivel de diploid\u00eda (p=0.002), de la frecuencia de todas las duplicciones y deleciones para las regiones centrom\u00e9rica y subtelom\u00e9rica del cromosoma 9 (p=0.002), de la disom\u00eda 9 (p=0.0001), y una significaci\u00f3n marginal de la frecuencia conjunta del total de disom\u00eda de los cromosomas sexuales (p=0.055), en relaci\u00f3n con la edad. No se observ\u00f3 ning\u00fan incremento para las disom\u00edas xx, yy, xy, 6 \u00f3 21.  se detect\u00f3 heterogeneidad interindividual en las frecuencias, pero el test estad\u00edstico utilizado nos permiti\u00f3 minimizar \u00e9ste efecto, eliminando toda la sobredispersi\u00f3n atribuible a la edad, para poder analizar la relaci\u00f3n de la frecuencia de anomal\u00edas cromos\u00f3micas con \u00e9ste par\u00e1metro.  el porcentaje de incremento para cada per\u00edodo de 1<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Efecto de la edad en las anomal\u00edas cromos\u00f3micas del espermatozoide humano<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Efecto de la edad en las anomal\u00edas cromos\u00f3micas del espermatozoide humano <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Mercedes Bosch Gonz\u00e1lez <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Aut\u00f3noma de barcelona<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 17\/06\/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>Cristina Templado Meseguer<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: francesca Vidal dom\u00ednguez <\/li>\n<li>miriam Guitart feliubadal\u00f3 (vocal)<\/li>\n<li> Martorell riera m. rosa (vocal)<\/li>\n<li>lLuis Bassas arnau (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Mercedes Bosch Gonz\u00e1lez El objetivo primordial de \u00e9ste estudio de tesis doctoral fue intentar hallar si exist\u00eda [&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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