{"id":38518,"date":"2018-03-09T09:38:07","date_gmt":"2018-03-09T09:38:07","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/estudio-morfologico-de-la-colitis-ulcerosa-con-microscopia-electronica-de-barrido\/"},"modified":"2018-03-09T09:38:07","modified_gmt":"2018-03-09T09:38:07","slug":"estudio-morfologico-de-la-colitis-ulcerosa-con-microscopia-electronica-de-barrido","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-medicas\/estudio-morfologico-de-la-colitis-ulcerosa-con-microscopia-electronica-de-barrido\/","title":{"rendered":"Estudio morfologico de la colitis ulcerosa con microscopia electronica de barrido."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Jos\u00e9 Luis Lopez Molinos <\/strong><\/h2>\n<p>En la actualidad existe un creciente inter\u00e9s por la enfermedad inflamatoria intestinal cr\u00f3nica (eiic) as\u00ed como por la microscop\u00eda electr\u00f3nica de barrido. La eiic incluye, entre otras enfermedades a la colitis ulcerosa.  en la presente tesis doctoral se realiza un estudio morfoestructural de la colitis ulcerosa mediante microscop\u00eda electr\u00f3nica de barrido sobre espec\u00edmenes de colon, sigma y recto obtenidos por biopsia endosc\u00f3pica.  el material de estudio se compone de muestras control obtenidas de mucosa col\u00f3nica y rectal endosc\u00f3picamente normal, y muestras de colitis ulcerosa activa o en remisi\u00f3n obtenidas de \u00e1reas endosc\u00f3picamente enfermas pero no ulceradas. La metodolog\u00eda para el procesamiento de las muestras consiste, brevemente, en la fijaci\u00f3n con glutaraldeh\u00eddo, postfijaci\u00f3n con tetr\u00f3xido de osmio, deshidrataci\u00f3n, desecaci\u00f3n por punto cr\u00edtico, montaje y metalizaci\u00f3n con oro.  en los controles se aprecia una morfoestructura caracterizada por la presencia mayoritaria de unidades criptales poligonales de 100-150 micras de di\u00e1metro, que muestran en posici\u00f3n central un orificio de 15-25 micras de di\u00e1metro que corresponde a la desembocadura luminal de la cripta de lieberkuhn. Existe una distribuci\u00f3n homog\u00e9nea de c\u00e9lulas caliciformes entre las c\u00e9lulas absortivas. El n\u00famero de c\u00e9lulas caliciformes oscila entre 1 y 4 por cada cuatrocientas micras cuadradas de superficie epitelial.  se tipifican como anomal\u00edas morfoestructurales m\u00e1s frecuentes en la colitis ulcerosa con microscop\u00eda electr\u00f3nica de barrido la presencia de: alteraciones relacionadas con los orificios criptales (disminuci\u00f3n en n\u00famero, aumento de su di\u00e1metro, distribuci\u00f3n irregular y polimorfismo), anormalidad o ausencia de las unidades criptales, y la convexidad apical de las c\u00e9lulas absortivas. Se tipifican como criterios de actividad de colitis ulcerosa la presencia de un n\u00famero disminuido de c\u00e9lulas caliciformes, la distribu<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Estudio morfologico de la colitis ulcerosa con microscopia electronica de barrido.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Estudio morfologico de la colitis ulcerosa con microscopia electronica de barrido. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Jos\u00e9 Luis Lopez Molinos <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Granada<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 24\/07\/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>Antonio Campos Mu\u00f1oz<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: ignacio P\u00e9rez de vargas ferroni <\/li>\n<li>pascual vicente Crespo ferrer (vocal)<\/li>\n<li>joaquin Espin ferra (vocal)<\/li>\n<li>Jos\u00e9 Vilches troya (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Jos\u00e9 Luis Lopez Molinos En la actualidad existe un creciente inter\u00e9s por la enfermedad inflamatoria intestinal cr\u00f3nica [&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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