dc.rights.license | Atribución-NoComercial-CompartirIgual 4.0 Internacional |
dc.contributor.advisor | Jiménez Robayo, Ligia Mercedes |
dc.contributor.advisor | Andrade Pérez, Rafael Enrique |
dc.contributor.author | Esquinas Castillo, Paula Cristina |
dc.date.accessioned | 2020-09-03T04:33:01Z |
dc.date.available | 2020-09-03T04:33:01Z |
dc.date.issued | 2020-07-10 |
dc.identifier.uri | https://repositorio.unal.edu.co/handle/unal/78368 |
dc.description.abstract | Glomerulopathies 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. |
dc.description.abstract | Las 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. |
dc.description.sponsorship | Universidad Nacional de Colombia, Fundación Santa Fe de Bogotá. |
dc.format.extent | 141 |
dc.format.mimetype | application/pdf |
dc.language.iso | spa |
dc.rights | Derechos reservados - Universidad Nacional de Colombia |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-sa/4.0/ |
dc.subject.ddc | 610 - Medicina y salud |
dc.subject.ddc | 636 - Producción animal |
dc.subject.ddc | 590 - Animales |
dc.title | Estudio comparativo de glomerulopatías en caninos y en humanos: Una aproximación morfológica y molecular |
dc.type | Otro |
dc.rights.spa | Acceso abierto |
dc.description.project | Modelos Animales de Enfermedades Complejas |
dc.description.additional | Línea de Investigación: Genética Animal. |
dc.type.driver | info:eu-repo/semantics/other |
dc.type.version | info:eu-repo/semantics/acceptedVersion |
dc.publisher.program | Bogotá - Medicina Veterinaria y de Zootecnia - Doctorado en Ciencias - Salud Animal o Producción Animal |
dc.contributor.corporatename | Universidad Nacional de Colombia |
dc.contributor.corporatename | Hospital Universitario Fundación Santa Fe de Bogotá |
dc.contributor.corporatename | Departamento de Ciencias Para La Salud Animal |
dc.contributor.researchgroup | Genética Animal GIGA |
dc.description.degreelevel | Doctorado |
dc.publisher.branch | Universidad Nacional de Colombia - Sede Bogotá |
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dc.rights.accessrights | info:eu-repo/semantics/openAccess |
dc.subject.proposal | canines |
dc.subject.proposal | biopsia renal |
dc.subject.proposal | glomerulopathies |
dc.subject.proposal | caninos |
dc.subject.proposal | glomerulopatías |
dc.subject.proposal | podocytes |
dc.subject.proposal | renal biopsy |
dc.subject.proposal | podocitos |
dc.subject.proposal | proteínas del diafragma de filtración |
dc.subject.proposal | podocyte proteins |
dc.type.coar | http://purl.org/coar/resource_type/c_1843 |
dc.type.coarversion | http://purl.org/coar/version/c_ab4af688f83e57aa |
dc.type.content | Text |
oaire.accessrights | http://purl.org/coar/access_right/c_abf2 |