{"id":34227,"date":"1998-01-01T00:00:00","date_gmt":"1998-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/estudio-mediante-tecnicas-de-biologia-molecular-de-aislamientos-clinicos-de-helicobacter-pylori-de-diferentes-regiones-de-espana\/"},"modified":"1998-01-01T00:00:00","modified_gmt":"1998-01-01T00:00:00","slug":"estudio-mediante-tecnicas-de-biologia-molecular-de-aislamientos-clinicos-de-helicobacter-pylori-de-diferentes-regiones-de-espana","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-medicas\/estudio-mediante-tecnicas-de-biologia-molecular-de-aislamientos-clinicos-de-helicobacter-pylori-de-diferentes-regiones-de-espana\/","title":{"rendered":"Estudio mediante tecnicas de biolog\u00eda molecular de aislamientos clinicos de helicobacter pylori de diferentes regiones de espa\u00f1a."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Teresa Alarc\u00f3n Cavero <\/strong><\/h2>\n<p>Helicobacter pylori es un bacilo gram negativo asociado a la producci\u00f3n de patolog\u00eda gastroduodenal como gastritis, \u00falcera g\u00e1strica y duodenal y c\u00e1ncer g\u00e1strico. El microorganismo posee diferentes caracteres de virulencia como las enzimas ureasa, catalasa, factores de adherencia (gen icea y hpaa) y factores relacionados con la producci\u00f3n de citotoxinas (gen caga y vaca). El tratamiento de la infecci\u00f3n consiste en la combinaci\u00f3n de antimicrobianos y agentes que act\u00faan modificando el ph g\u00e1strico. El objetivo de este trabajo fue estudiar diferentes caracter\u00edsticas de aislamientos cl\u00ednicos de h.  pylori procedentes de distintas regiones de espa\u00f1a (ibiza, Madrid, almer\u00eda y avil\u00e9s). Se determin\u00f3 la sensibilidad de las cepas frente a metronidazol, amoxicilina, claritromicina y tetraciclina. En un n\u00famero de cepas resistentes a claritromicina se estudi\u00f3, mediante reacci\u00f3n en cadena de la polimerasa (rcp) y posterior digesti\u00f3n enzim\u00e1tica, el mecanismo de resistencia frente al macr\u00f3lido. Por otro lado se realiz\u00f3 la detecci\u00f3n de los genes de virulencia caga, vaca, hpaa e icea mediante t\u00e9cnicas de biolog\u00eda molecular. No se encontr\u00f3 ninguna cepa resistente a amoxicilina ni a tetraciclina y las tasas de resistencia a claritromicina y metronidazol fueron superiores en la regi\u00f3n de Madrid, probablemente por el tipo de poblaci\u00f3n estudiada. El gen caga se detect\u00f3 en un alto porcentaje en todas las regiones y no se correlacion\u00f3 con la producci\u00f3n de \u00falcera. El alelo sl del gen vaca fue el m\u00e1s predominante en todas las regiones. En cuanto a los genes icea y hpaa las cepas de ibiza fueron las que menor diversidad ofrecieron y no se encontr\u00f3 relaci\u00f3n entre la producci\u00f3n de una patolog\u00eda con la existencia de un patr\u00f3n determinado.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Estudio mediante tecnicas de biolog\u00eda molecular de aislamientos clinicos de helicobacter pylori de diferentes regiones de espa\u00f1a.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Estudio mediante tecnicas de biolog\u00eda molecular de aislamientos clinicos de helicobacter pylori de diferentes regiones de espa\u00f1a. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Teresa Alarc\u00f3n Cavero <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Complutense de Madrid<\/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>Teresa Alarc\u00f3n Cavero<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Jose Prieto Prieto <\/li>\n<li>Francisco Soriano Garc\u00eda (vocal)<\/li>\n<li>\u00e1ngela G\u00f3mez Alf\u00e9rez (vocal)<\/li>\n<li> Sanz Moreno Juan  Carlos (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Teresa Alarc\u00f3n Cavero Helicobacter pylori es un bacilo gram negativo asociado a la producci\u00f3n de patolog\u00eda gastroduodenal [&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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