{"id":135431,"date":"1997-01-01T00:00:00","date_gmt":"1997-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/metastasis-hematogenas-en-pulmon-irradiado-estudio-experimental\/"},"modified":"1997-01-01T00:00:00","modified_gmt":"1997-01-01T00:00:00","slug":"metastasis-hematogenas-en-pulmon-irradiado-estudio-experimental","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-medicas\/metastasis-hematogenas-en-pulmon-irradiado-estudio-experimental\/","title":{"rendered":"Metastasis hematogenas en pulmon irradiado. estudio experimental."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Luis Fernando Oton Sanchez <\/strong><\/h2>\n<p>El desarrollo de los tumores en lechos previamente irradiados presenta como caracteristicas diferenciales un retraso en el crecimiento y la posibilidad de inoculacion por dosis menores. Sobre este denominado efecto lecho existe poca informacion cuando la colonia tumoral es una metastasis: algunos trabajos muestran variaciones en el numero cuando la siembra se produce en territorios irradiados, aunque los resultados son controvertidos, en tanto que la documentacion sobre el crecimiento es virtualmente nula.  se llevo a cabo un estudio en el que ratones de la cepa c57 bl\/6 eran sometidosa irradiacion de un solo hemitorax, a dosis de 5 o 15gy por medio de un aparato de terapia superficial a 50 kev. Al cabo de distintos plazos, los animales eran inculados con celulas de melanoma b16-f10 para provocar metastasis pulmonares.  tras necropsia y observacion, las conclusiones mas relevantes fueron:  1.- Las metastasis eran un 12% mas numerosas en el pulmon previamente irradiado, siendo esta diferencia estadisticamente significativa. La segregacion por grupos de dosis o de intervalo radiacion-inoculacion, mantuvo constante tal incremento; excepto para el mayor intervalo, 42 dias, lo que induce a pensar que el fenomeno es temporal y que su vigencia oscilaria entre las tres y las seis semanas.  2.- El tama\u00f1o de las colonias fue superior en el pulmon preirradiado que en el control. Esto es, en el terreno de las metastasis, en lugar de retraso en el crecimiento ocurre lo contrario.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Metastasis hematogenas en pulmon irradiado. estudio experimental.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Metastasis hematogenas en pulmon irradiado. estudio experimental. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Luis Fernando Oton Sanchez <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 La laguna<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1997<\/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>Claudio Antonio Oton Sanchez<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Lucio Diaz Flores Feo <\/li>\n<li>Mar\u00eda  Teresa Delgado Macias (vocal)<\/li>\n<li>Manuel Mart\u00ednez Morillo (vocal)<\/li>\n<li>Jos\u00e9 Hern\u00e1ndez Armas (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Luis Fernando Oton Sanchez El desarrollo de los tumores en lechos previamente irradiados presenta como caracteristicas diferenciales [&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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