{"id":11537,"date":"2018-03-09T08:56:57","date_gmt":"2018-03-09T08:56:57","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/estudio-ultraestructural-de-la-retina-y-el-nervio-optico-de-un-teleosteo-tinca-tinca-l-1758-en-procesos-de-degeneracion-y-regeneracion\/"},"modified":"2018-03-09T08:56:57","modified_gmt":"2018-03-09T08:56:57","slug":"estudio-ultraestructural-de-la-retina-y-el-nervio-optico-de-un-teleosteo-tinca-tinca-l-1758-en-procesos-de-degeneracion-y-regeneracion","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-de-la-vida\/estudio-ultraestructural-de-la-retina-y-el-nervio-optico-de-un-teleosteo-tinca-tinca-l-1758-en-procesos-de-degeneracion-y-regeneracion\/","title":{"rendered":"Estudio ultraestructural de la retina y el nervio optico de un tele\u00f3steo (tinca tinca l., 1758) en procesos de degeneracion y regeneracion."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Mar\u00eda Concepci\u00f3n Lillo Delgado <\/strong><\/h2>\n<p>El sistema visual de los peces tele\u00f3steos posee una serie de peculiaridades que lo hacen diferente al de mamiferos. Este crece continuamente a lo largo de toda la vida del animal, y en la retina se debe principalmente a la adici\u00f3n de nuevas neuronas desde tres zonas: la zona periferica germinal (zpg) que delimita toda la periferia de la retina y que origina la mayoria de los tipos celulares,los precursores de bastones, que a\u00f1aden bastones a la capa fotorreceptora, y las celulas madre, recientemente descubiertas en la cni de algunas especies de tele\u00f3steos. Adem\u00e1s el sistema visual de tele\u00f3steos posee capacidad regenerativa tras lesi\u00f3n. Se cree que la respuesta que llevan a cabo las c\u00e9lulas gliales en el tejido neural da\u00f1ado podr\u00eda ser clave para dicha regeneraci\u00f3n.  tras efectuar una criolesi\u00f3n en la zpg, la eliminaci\u00f3n de detritos la realizan tanto microgl\u00eda residente activada y proliferativa como m\u00e1crofagos de origen no retiniano. Algunas c\u00e9lulas del epitelio pigmentario modifican su localizaci\u00f3n y se establecen en la retina neural, donde permanecen incluso una vez completada la regeneraci\u00f3n. Tambien intervienen granulocitos heter\u00f3filos y bas\u00f3filos durante la degeneraci\u00f3n tisular al liberar sustancias citot\u00f3xicas al espacio extracelular. Las celulas de muller de las zonas pr\u00f3ximas a la lesi\u00f3n se vuelven reactivas y fagoc\u00edticas durante el proceso degenerativo, para favorecer la restauraci\u00f3n de la retina marginal al guiar a las celulas proliferativas en migraci\u00f3n durante el proceso regenerativo. En la regeneraci\u00f3n de la zpg parecen intervenir las poblaciones proliferativas de la retina neural y las celulas del epitelio cililar. La eliminaci\u00f3n de la zpg induce la proliferaci\u00f3n de precursores de bastones en la cne y de celulas madre en la cni,tanto en la zona adyacente a la lesi\u00f3n como en porciones alejadas de la zona da\u00f1ada.  la cabeza del nervio \u00f3ptimo difiere del resto del nervio optico en la citoarquitec<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Estudio ultraestructural de la retina y el nervio optico de un tele\u00f3steo (tinca tinca l., 1758) en procesos de degeneracion y regeneracion.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Estudio ultraestructural de la retina y el nervio optico de un tele\u00f3steo (tinca tinca l., 1758) en procesos de degeneracion y regeneracion. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Mar\u00eda Concepci\u00f3n Lillo Delgado <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Salamanca<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 22\/06\/2001<\/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>Juan  Manuel Lara Pradas<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: jose Aijon noguera <\/li>\n<li>emiliano Hern\u00e1ndez galilea (vocal)<\/li>\n<li>Manuel Jos\u00e9 Gayoso rodriguez (vocal)<\/li>\n<li>Carlos Crespo ruperez (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Mar\u00eda Concepci\u00f3n Lillo Delgado El sistema visual de los peces tele\u00f3steos posee una serie de peculiaridades que 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