{"id":82142,"date":"2000-01-01T00:00:00","date_gmt":"2000-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/cryptosporidium-en-organismos-acuaticos-y-factores-ambientales-que-influyen-en-la-viabilidad-ooquistica\/"},"modified":"2000-01-01T00:00:00","modified_gmt":"2000-01-01T00:00:00","slug":"cryptosporidium-en-organismos-acuaticos-y-factores-ambientales-que-influyen-en-la-viabilidad-ooquistica","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-de-la-vida\/cryptosporidium-en-organismos-acuaticos-y-factores-ambientales-que-influyen-en-la-viabilidad-ooquistica\/","title":{"rendered":"Cryptosporidium en organismos acuaticos y factores ambientales que influyen  en la viabilidad ooquistica."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Francisco Freire Santos <\/strong><\/h2>\n<p>Se valor\u00f3 la influencia de la salinidad, la temperatura y el tiempo, sobre la viabilidad, evaluada in vivo (bioensayo en rat\u00f3n) e in vitro (t\u00e9cnicas de desenquistamiento y de inclusi\u00f3n\/exclusi\u00f3n de colorantes vitales fluorog\u00e9nicos), de los ooquistes de cryptosporidium parvum en suspensiones acuosas, empleando un dise\u00f1o experimental 2&#215;3 de primer orden. La interpretaci\u00f3n estad\u00edstica de los resultados obtenidos demostr\u00f3 que, en el intervalo de valores estudiado (establecido teniendo en cuenta los valores habituales en el medio h\u00eddrico), la salinidad, el tiempo y la interacci\u00f3n salinidad-tiempo, son los factores m\u00e1s influyentes sobre la viabilidad e infectividad ooqu\u00edsticas. Teniendo en cuenta la baja dosis m\u00ednima infectante y la susceptibilidad de los hospedadores inmunocomprometidos, el hecho de que al menos un 20% de los ooquistes permanezcan viables y potencialmente infectantes, incluso en las condiciones m\u00e1s desfavorables de nuestro estudio, evidencia el alto riesgo que para la sanidad humana y animal representa la presencia de ooquistes de c. Parvum en aguas superficiales.  la detecci\u00f3n de formas compatibles con ooquistes (tama\u00f1o y caracter\u00edsticas de tinci\u00f3n similares) en el contenido intestinal de trucha com\u00fan (salmo trutta) sugiere que la infecci\u00f3n natural puede presentarse en estos hospedadores, sin descartar la posibilidad de que tan solo act\u00faen como veh\u00edculos de transporte y diseminaci\u00f3n en el ambiente. Paralelamente, se intent\u00f3 implantar la infecci\u00f3n con ooquistes de c. Parvum de origen bovino e infectantes para ratones lactantes en ejemplares de trucha arco iris (oncorhynchus mykiss) de un a\u00f1o de edad inoculadas por v\u00eda oral. La observaci\u00f3n microsc\u00f3pica de cortes histol\u00f3gicos realizados a nivel del est\u00f3mago y ciegos pil\u00f3ricos demostraron en el citoplasma de las c\u00e9lulas epiteliales, la presencia de unas estructuras bien delimitadas por un halo transparente, de 5-7 um de tama\u00f1o, en cuyo<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Cryptosporidium en organismos acuaticos y factores ambientales que influyen  en la viabilidad ooquistica.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Cryptosporidium en organismos acuaticos y factores ambientales que influyen  en la viabilidad ooquistica. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Francisco Freire Santos <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Santiago de compostela<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/2000<\/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> Ares Maz\u00e1s M. Elvira<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal:  Cordero del campillo Miguel <\/li>\n<li>caridad Sanchez acedo (vocal)<\/li>\n<li>florencio Mart\u00ednez ubeira (vocal)<\/li>\n<li>diego Carlos Guevara benitez (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Francisco Freire Santos Se valor\u00f3 la influencia de la salinidad, la temperatura y el tiempo, sobre la [&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 center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"categories":[35,11243,977,226],"tags":[21265,7594,666,3525,2683,174900],"class_list":["post-82142","post","type-post","status-publish","format-standard","hentry","category-ciencias-de-la-vida","category-protozoologia","category-santiago-de-compostela","category-zoologia","tag-ares-mazas-m-elvira","tag-caridad-sanchez-acedo","tag-cordero-del-campillo-miguel","tag-diego-carlos-guevara-benitez","tag-florencio-Martinez-ubeira","tag-francisco-freire-santos"],"_links":{"self":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/82142","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/comments?post=82142"}],"version-history":[{"count":0,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/82142\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/media?parent=82142"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/categories?post=82142"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/tags?post=82142"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}