Estudio comparativo de glomerulopatías en caninos y en humanos: Una aproximación morfológica y molecular

dc.contributor.advisorJiménez Robayo, Ligia Mercedesspa
dc.contributor.advisorAndrade Pérez, Rafael Enriquespa
dc.contributor.authorEsquinas Castillo, Paula Cristinaspa
dc.contributor.corporatenameUniversidad Nacional de Colombiaspa
dc.contributor.corporatenameHospital Universitario Fundación Santa Fe de Bogotáspa
dc.contributor.corporatenameDepartamento de Ciencias Para La Salud Animalspa
dc.contributor.researchgroupGenética Animal GIGAspa
dc.date.accessioned2020-09-03T04:33:01Zspa
dc.date.available2020-09-03T04:33:01Zspa
dc.date.issued2020-07-10spa
dc.description.abstractGlomerulopathies are currently considered one of the most important causes of chronic renal failure in both humans and dogs. These can be induced by a primary kidney disease, by genetic mutations or by secondary glomerulopathies caused by systemic diseases such as lupus, infections, tumors or in response to medications. Glomerulopathies cause significant morbidity and mortality and are a potentially preventable factor of end-stage renal disease in all species, so early diagnosis is considered vital. The typical clinical manifestation of glomerulopathies is proteinuria, which implies the failure of the glomerular filtration process. In the present work, a complex histopathological study on renal specimens of canines was carried out and a subsequent structural and gene level measurement of podocin, nephrine, alpha actinin-4 proteins and transforming growth factor beta-1 in human kidney biopsies and canine tissues, in order to compare the different mechanisms of podocyte injury. The results allowed to define three groups of renal conditions with glomerular damage in the canines: renal dysplasia, focal and segmental glomerulosclerosis and glomerulonephritis. High degree of similarity was determined between the glomerular structure of the two species. Additionally, it was possible to define that there are changes in the expression and location of the filtration diaphragm and cytoskeleton proteins as a response of the podocyte to different injuries. It was determined that the pathogenesis of glomerulopathies in canines and humans shows similar mechanisms of injury and that can be considered an adequate model of spontaneous glomerular diseases.spa
dc.description.abstractLas glomerulopatías son consideradas actualmente como una de las causas más importantes de la falla renal crónica tanto en humanos como en caninos. Estas pueden ser inducidas por una enfermedad renal primaria, por mutaciones genéticas o por glomerulopatías secundarias ocasionadas por enfermedades sistémicas como el lupus, infecciones, tumores o como respuesta a medicamentos. Las glomerulopatías provocan importante morbilidad y mortalidad y son un factor potencialmente prevenible de enfermedad renal en etapa terminal en todas las especies, por lo que se considera vital la realización de un diagnóstico temprano. La manifestación clínica típica de las glomerulopatías es la proteinuria, la cual implica la falla del proceso de filtración glomerular. En el presente trabajo se realizó un estudio histopatológico complejo sobre especímenes renales de caninos y una posterior medición a nivel estructural y génico de las proteínas podocina, nefrina, alfa actinina-4 y factor de crecimiento transformante beta-1 en biopsias renales de humanos y de los tejidos caninos, con el fin de comparar los diferentes mecanismos de lesión podocitaria. Los resultaron permitieron definir tres grupos de afecciones renales con daños glomerulares en los caninos: Displasia renal, glomeruloesclerosis focal y segmentaria y glomerulonefritis. Se determinó alto grado de similitud entre la estructura glomerular de las dos especies. Adicionalmente se pudo definir que existen cambios en la expresión y en la localización de las proteínas del diafragma de filtración y del citoesqueleto como respuesta del podocito a diferentes injurias. Se pudo determinar que la patogenia de las glomerulopatías en caninos y en humanos muestra mecanismos similares de lesión y que se puede considerar un modelo adecuado de enfermedades glomerulares espontaneas.spa
dc.description.additionalLínea de Investigación: Genética Animal.spa
dc.description.degreelevelDoctoradospa
dc.description.projectModelos Animales de Enfermedades Complejasspa
dc.description.sponsorshipUniversidad Nacional de Colombia, Fundación Santa Fe de Bogotá.spa
dc.format.extent141spa
dc.format.mimetypeapplication/pdfspa
dc.identifier.urihttps://repositorio.unal.edu.co/handle/unal/78368
dc.language.isospaspa
dc.publisher.branchUniversidad Nacional de Colombia - Sede Bogotáspa
dc.publisher.programBogotá - Medicina Veterinaria y de Zootecnia - Doctorado en Ciencias - Salud Animal o Producción Animalspa
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dc.rightsDerechos reservados - Universidad Nacional de Colombiaspa
dc.rights.accessrightsinfo:eu-repo/semantics/openAccessspa
dc.rights.licenseAtribución-NoComercial-CompartirIgual 4.0 Internacionalspa
dc.rights.spaAcceso abiertospa
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/spa
dc.subject.ddc610 - Medicina y saludspa
dc.subject.ddc636 - Producción animalspa
dc.subject.ddc590 - Animalesspa
dc.subject.proposalcanineseng
dc.subject.proposalbiopsia renalspa
dc.subject.proposalglomerulopathieseng
dc.subject.proposalcaninosspa
dc.subject.proposalglomerulopatíasspa
dc.subject.proposalpodocyteseng
dc.subject.proposalrenal biopsyeng
dc.subject.proposalpodocitosspa
dc.subject.proposalproteínas del diafragma de filtraciónspa
dc.subject.proposalpodocyte proteinseng
dc.titleEstudio comparativo de glomerulopatías en caninos y en humanos: Una aproximación morfológica y molecularspa
dc.typeTrabajo de grado - Doctoradospa
dc.type.coarhttp://purl.org/coar/resource_type/c_db06spa
dc.type.coarversionhttp://purl.org/coar/version/c_ab4af688f83e57aaspa
dc.type.contentTextspa
dc.type.driverinfo:eu-repo/semantics/doctoralThesisspa
dc.type.versioninfo:eu-repo/semantics/acceptedVersionspa
oaire.accessrightshttp://purl.org/coar/access_right/c_abf2spa

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