{"id":27286,"date":"2003-04-12T00:00:00","date_gmt":"2003-04-12T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/estudio-del-oncorhynchus-mykiss-como-modelo-experimental-en-dermatologa%c2%ada-comparada\/"},"modified":"2003-04-12T00:00:00","modified_gmt":"2003-04-12T00:00:00","slug":"estudio-del-oncorhynchus-mykiss-como-modelo-experimental-en-dermatologa%c2%ada-comparada","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/cadiz\/estudio-del-oncorhynchus-mykiss-como-modelo-experimental-en-dermatologa%c2%ada-comparada\/","title":{"rendered":"Estudio del oncorhynchus mykiss como modelo experimental en dermatolog\u00eda comparada"},"content":{"rendered":"<h2>Tesis doctoral de <strong>  Armario Hita Jos\u00e9 Carlos <\/strong><\/h2>\n<p>Objetivos  1,- observar y valorar las posibles modificaciones agudas y cr\u00f3nicas en la estructura y composici\u00f3n qu\u00edmica de la piel del oncorhynchus mykiss provocadas por la acci\u00f3n del dodecil-sulfato s\u00f3dico (sds) y del alquil-benceno-sulfonato s\u00f3dico (abs).  2,- estudiar la posibilidad de utilizar peces como modelo experimental en la investigaci\u00f3n en dermatolog\u00eda comparada.  material y m\u00e9todos  los animales de experimentaci\u00f3n utilizados fueron oncorhyncus mykiss de tres meses de edad. Los especimenes, divividos en lotes fueron sometidos a distintas concentraciones de sds y abs. Las muestras se fijaron en formol 10% v\/v tamponado con fosfatos 0,1m ph 7.0-7.2 y se incluyeron en parafina semisint\u00e9tica. Las t\u00e9cnicas histomorfol\u00f3gicas utilizadas fueron hematoxilina-eosina y hematoxilina de harris modificada vof de guti\u00e9rrez; y las histoqu\u00edmicas, las espec\u00edficas para la demostraci\u00f3n y localizaci\u00f3n de carbohidratos y prote\u00ednas.  resultados  la cl50 fue de 19.4 mg\/l para sds y de 1.8 mg\/l para abs. Los efectos de los tensioactivos sobre los \u00f3rganos estudiados dependen de la dosis y del tiempo de exposici\u00f3n, manifest\u00e1ndose una mayor alteraci\u00f3n en aquellos especimenes sometidos a mayores dosis y tiempos de exposici\u00f3n. Ambas mol\u00e9culas producen los cambios histomorfol\u00f3gicos cl\u00e1sicos de la dermatitis de contacto irritativa, consistentes en edema intercelular e intracelular inflamatorio de predominio mononuclear, necrosis de queratinocitos y descamaci\u00f3n. Existen diferencias regionales a la acci\u00f3n irritativa de los detergentes sobre la piel de la trucha arco iris. Siendo m\u00e1s resistente la zona dorsal frente a la ventral y la posterior frente a la anterior. A nivel histoqu\u00edmico se observa una modificaci\u00f3n en el patr\u00f3n de degranulaci\u00f3n de los mucocitos que puede estar relacionada con un intento de protecci\u00f3n de las capas m\u00e1s superficiales de la epidermis.  conclusiones  el modelo de experimentaci\u00f3n animal de<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Estudio del oncorhynchus mykiss como modelo experimental en dermatolog\u00eda comparada<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Estudio del oncorhynchus mykiss como modelo experimental en dermatolog\u00eda comparada <\/li>\n<li><strong>Autor:<\/strong>\u00a0  Armario Hita Jos\u00e9 Carlos <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 C\u00e1diz<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 04\/12\/2003<\/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> Fern\u00e1ndez Vozmediano Jos\u00e9 Manuel<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: manuel Rosety plaza <\/li>\n<li>Jes\u00fas Cuevas santos (vocal)<\/li>\n<li>felix Contreras rubio (vocal)<\/li>\n<li>eduardo Fonseca capdevila (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Armario Hita Jos\u00e9 Carlos Objetivos 1,- observar y valorar las posibles modificaciones agudas y cr\u00f3nicas en 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 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