{"id":37319,"date":"1998-01-01T00:00:00","date_gmt":"1998-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/el-efecto-de-dos-emulsiones-de-lipidos-sobre-los-acidos-grasos-de-los-fosfolipidos-del-plasma\/"},"modified":"1998-01-01T00:00:00","modified_gmt":"1998-01-01T00:00:00","slug":"el-efecto-de-dos-emulsiones-de-lipidos-sobre-los-acidos-grasos-de-los-fosfolipidos-del-plasma","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-medicas\/el-efecto-de-dos-emulsiones-de-lipidos-sobre-los-acidos-grasos-de-los-fosfolipidos-del-plasma\/","title":{"rendered":"El efecto de dos emulsiones de lipidos sobre los acidos grasos de los fosfolipidos del plasma."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Gonzalo Martin Pe\u00f1a <\/strong><\/h2>\n<p>La administraci\u00f3n de nutrici\u00f3n parenteral con emulsiones de l\u00edpidos se ha asociado con mayor riesgo de infecciones por g\u00e9rmenes comunes y oportunistas. Los \u00e1cidos grasos de la dieta se incorporan a los fosfol\u00edpidos de las membranas celulares desde donde son liberados, por la fosfolipasa y oxidados por la cox o la lipooxigenasa, para producir diferentes prostaglandinas, leucotrienos y tromboxanos que intervienen en la regulaci\u00f3n de la reacci\u00f3n inflamatoria y producci\u00f3n de linfokinas. El objetivo es comparar el efecto de dos emulsiones de l\u00edpidos, una de aceite de soja (lct) y la otra de aceite de soja y mct al 50% (mct\/lct), sobre los fosfol\u00edpidos del plasma, proteinas de vida corta, par\u00e1metros bioqu\u00edmicos y evoluci\u00f3n cl\u00ednica de los pacientes.  el dise\u00f1o trata del estudio prospectivo, aleatorio, doble ciego, en pacientes con nutrici\u00f3n parenteral. Se realizaron tomas de sangre antes de comenzar el tratamiento y semanalmente mientras dur\u00f3 \u00e9ste. Los fosfol\u00edpidos se aislaron mediante cromatograf\u00eda en capa fina y los \u00e1cidos grasos se separaron mediante cromatograf\u00eda de gases. Los resultados son: en los pacientes que recibieron la emulsi\u00f3n de lct se encontr\u00f3 elevaci\u00f3n significativa del \u00e1cido linoleico y de la pcr y descenso estad\u00edsticamente significativo del \u00e1cido araquid\u00f3nico, prealb\u00famina y proteina ligadora del retinol, respecto a los que recibieron la soluci\u00f3n de mct\/lct. El grupo tratado con lct present\u00f3 m\u00e1s complicaciones y mortalidad, pero sin alcanzar significaci\u00f3n estad\u00edstica. Las conclusiones son: que las emulsiones de l\u00edpidos producen cambios en la composici\u00f3n de \u00e1cidos grasos en fosfol\u00edpidos, probablemente por inhibici\u00f3n de las desaturasas y elongasas. Las alteraciones producidas por la administraci\u00f3n  de lct son compatibles con una mayor reacci\u00f3n inflamatoria en estos pacientes que en los que recibieron la soluci\u00f3n de mct\/lct. Posiblemente estas alteraciones est\u00e9n relacionadas con<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>El efecto de dos emulsiones de lipidos sobre los acidos grasos de los fosfolipidos del plasma.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 El efecto de dos emulsiones de lipidos sobre los acidos grasos de los fosfolipidos del plasma. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Gonzalo Martin Pe\u00f1a <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Alcal\u00e1<\/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>Melchor Alvarez De Mon Soto<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Manuel Rodriguez Zapata <\/li>\n<li>Cristina Alvarez Escolar (vocal)<\/li>\n<li>Jos\u00e9 Antonio Gir\u00f3n Gonz\u00e1lez (vocal)<\/li>\n<li>Francisco Merino Mendoza (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Gonzalo Martin Pe\u00f1a La administraci\u00f3n de nutrici\u00f3n parenteral con emulsiones de l\u00edpidos se ha asociado con mayor [&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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