Fatores de virulência e similaridade genética de Escherichia coli isoladas de úteros e urina em cadelas com e sem piometra
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFU |
Texto Completo: | https://repositorio.ufu.br/handle/123456789/13080 https://doi.org/10.14393/ufu.di.2013.321 |
Resumo: | This research evaluates the occurrence of Escherichia coli in the uterine contents and urine of healthy and pyometra female dogs. At the isolate was determined the presence of virulence genes, antimicrobial resistance and genetic proximity. The results were associated with histopathological changes and observed the relationship between uterine infections and urinary tract by the agent. Of the 87 samples, the results show bacterial growth in 46/87 (52.9%), 36/52 (69.2%) from the uterine contents and 10/35 (28.6%) of urine. Positivity was observed for E. coli 25/36 (69.4%) uterus samples with pyometra and 7/10 (70.0%) urine s samples. For the healthy female dogs was observed a growth of micro-organisms in 28/49 (57.1%) samples, but no one has been identified as E. coli, what means that agent was associated with sick animals. There was 100% sensitivity to ceftiofur, gentamicin, enrofloxacin, norfloxacin, ciprofloxacin, and cefoxitin and erythromycin resistance (100%), ampicillin (34.4%) and sulfonamide (25.0%). The isolate of E. coli showed a large number of virulence genes studied: 31/32 (96.9%) had the gene sfa, 19/32 (59.4%) afa, 15/32 (46.9%) pap, 17/32 (53.1%) and hly 22/32 (68.75%) cnf. Histopathological analysis found that 6/22 (27.3%) animals showed grade I in the classification, 9/22 (40.9%) grade II, and 7/22 (31.8%) grade III, being that, there was an interconnection between greater inflammatory response and highest number of virulence genes. The genetic similarity analysis showed high phylogenetic diversity in E. coli, but found that the strains isolated from the same animal had the similar genotype, as soon as cystitis and pyometra showed a direct relationship. The study demonstrates the importance of E. coli in pyometras female dogs and the presence of phenotypic and genotypic active in disease pathogenesis. |
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2016-06-22T18:34:00Z2013-12-172016-06-22T18:34:00Z2013-08-26OLIVEIRA, Raquel Peres de. Virulence factors and genetic similarity of escherichia coli isolated from uterus and urine in female dogs with and without pyometra. 2013. 89 f. Dissertação (Mestrado em Ciências Agrárias) - Universidade Federal de Uberlândia, Uberlândia, 2013. DOI https://doi.org/10.14393/ufu.di.2013.321https://repositorio.ufu.br/handle/123456789/13080https://doi.org/10.14393/ufu.di.2013.321This research evaluates the occurrence of Escherichia coli in the uterine contents and urine of healthy and pyometra female dogs. At the isolate was determined the presence of virulence genes, antimicrobial resistance and genetic proximity. The results were associated with histopathological changes and observed the relationship between uterine infections and urinary tract by the agent. Of the 87 samples, the results show bacterial growth in 46/87 (52.9%), 36/52 (69.2%) from the uterine contents and 10/35 (28.6%) of urine. Positivity was observed for E. coli 25/36 (69.4%) uterus samples with pyometra and 7/10 (70.0%) urine s samples. For the healthy female dogs was observed a growth of micro-organisms in 28/49 (57.1%) samples, but no one has been identified as E. coli, what means that agent was associated with sick animals. There was 100% sensitivity to ceftiofur, gentamicin, enrofloxacin, norfloxacin, ciprofloxacin, and cefoxitin and erythromycin resistance (100%), ampicillin (34.4%) and sulfonamide (25.0%). The isolate of E. coli showed a large number of virulence genes studied: 31/32 (96.9%) had the gene sfa, 19/32 (59.4%) afa, 15/32 (46.9%) pap, 17/32 (53.1%) and hly 22/32 (68.75%) cnf. Histopathological analysis found that 6/22 (27.3%) animals showed grade I in the classification, 9/22 (40.9%) grade II, and 7/22 (31.8%) grade III, being that, there was an interconnection between greater inflammatory response and highest number of virulence genes. The genetic similarity analysis showed high phylogenetic diversity in E. coli, but found that the strains isolated from the same animal had the similar genotype, as soon as cystitis and pyometra showed a direct relationship. The study demonstrates the importance of E. coli in pyometras female dogs and the presence of phenotypic and genotypic active in disease pathogenesis.Este estudo avaliou a ocorrência de Escherichia coli em conteúdo uterino e urina de cadelas sadias e com piometra. Nos isolados, foi determinada a presença de genes de virulência, resistência aos antimicrobianos e proximidade genética. Os resultados foram associados a alterações histopatológicas e também verificada a relação entre infecções uterinas e do trato urinário pelo agente. Das 87 amostras, obteve-se crescimento bacteriano em 46/87 (52,9%), sendo 36/52 (69,2%) provenientes do conteúdo uterino e 10/35 (28,6%) de urina. Observou-se positividade para E. coli em 25/36 (69,4%) amostras de útero com piometra e 7/10 (70,0%) amostras de urina. Para as cadelas sadias constatou-se crescimento de micro-organismos em 28/49 (57,1%) amostras, mas nenhuma foi identificada como E. coli, demonstrando que esse agente estava associado aos animais doentes. Houve sensibilidade de 100% ao ceftiofur, gentamicina, enrofloxacina, norfloxacina, cefoxitina e ciprofloxacina, e resistência à eritromicina (100%), ampicilina (34,4%) e sulfonamida (25,0%). Os isolados de E. coli apresentaram grande número dos genes de virulência estudados: 31/32 (96,9%) possuíam o gene sfa, 19/32 (59,4%) afa, 15/32 (46,9%) pap, 17/32 (53,1%) hly e 22/32 (68,75%) cnf. A análise histopatológica identificou que 6/22 (27,3%) animais apresentaram grau I na classificação, 9/22 (40,9%) grau II e 7/22 (31,8%) grau III, sendo que houve uma interligação entre a maior resposta inflamatória e o maior número de genes de virulência. A análise de similaridade genética demonstrou elevada diversidade filogenética em E. coli, mas constatou que as cepas oriundas do mesmo animal possuíam o mesmo genótipo, logo a cistite e a piometra apresentaram uma relação direta. O estudo denotou a importância de E. coli nas piometras de cadelas e a presença de caracteres fenotípicos e genotípicos atuantes na patogênese da doença.Mestre em Ciências Veterináriasapplication/pdfporUniversidade Federal de UberlândiaPrograma de Pós-graduação em Ciências VeterináriasUFUBRCiências AgráriasE. coliGenes de virulênciaPatogêneseRAPDResistênciaCão - DoençasÚtero - HistopatologiaVirulence genesPathogenesisResistanceCNPQ::CIENCIAS AGRARIAS::MEDICINA VETERINARIAFatores de virulência e similaridade genética de Escherichia coli isoladas de úteros e urina em cadelas com e sem piometraVirulence factors and genetic similarity of escherichia coli isolated from uterus and urine in female dogs with and without pyometrainfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisRossi, Daise Aparecidahttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4708590E1Rezende, Cíntia Silva Minafra ehttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4707372E1Ferreira, Fernando Antôniohttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4780809A5http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4250971J0Oliveira, Raquel Peres de81758920info:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFUinstname:Universidade Federal de Uberlândia (UFU)instacron:UFUTHUMBNAILFatoresVirulenciaSimilaridade.pdf.jpgFatoresVirulenciaSimilaridade.pdf.jpgGenerated Thumbnailimage/jpeg1378https://repositorio.ufu.br/bitstream/123456789/13080/3/FatoresVirulenciaSimilaridade.pdf.jpg239234dd7daa16133b9159d03274e390MD53ORIGINALFatoresVirulenciaSimilaridade.pdfapplication/pdf1180100https://repositorio.ufu.br/bitstream/123456789/13080/1/FatoresVirulenciaSimilaridade.pdf191e9de8ad7b7b614ab5d7daf548fb6dMD51TEXTFatoresVirulenciaSimilaridade.pdf.txtFatoresVirulenciaSimilaridade.pdf.txtExtracted texttext/plain179776https://repositorio.ufu.br/bitstream/123456789/13080/2/FatoresVirulenciaSimilaridade.pdf.txtc3dea7f578dbf5ec5d8245c43e9ffbb6MD52123456789/130802022-09-14 13:46:14.195oai:repositorio.ufu.br:123456789/13080Repositório InstitucionalONGhttp://repositorio.ufu.br/oai/requestdiinf@dirbi.ufu.bropendoar:2022-09-14T16:46:14Repositório Institucional da UFU - Universidade Federal de Uberlândia (UFU)false |
dc.title.por.fl_str_mv |
Fatores de virulência e similaridade genética de Escherichia coli isoladas de úteros e urina em cadelas com e sem piometra |
dc.title.alternative.eng.fl_str_mv |
Virulence factors and genetic similarity of escherichia coli isolated from uterus and urine in female dogs with and without pyometra |
title |
Fatores de virulência e similaridade genética de Escherichia coli isoladas de úteros e urina em cadelas com e sem piometra |
spellingShingle |
Fatores de virulência e similaridade genética de Escherichia coli isoladas de úteros e urina em cadelas com e sem piometra Oliveira, Raquel Peres de E. coli Genes de virulência Patogênese RAPD Resistência Cão - Doenças Útero - Histopatologia Virulence genes Pathogenesis Resistance CNPQ::CIENCIAS AGRARIAS::MEDICINA VETERINARIA |
title_short |
Fatores de virulência e similaridade genética de Escherichia coli isoladas de úteros e urina em cadelas com e sem piometra |
title_full |
Fatores de virulência e similaridade genética de Escherichia coli isoladas de úteros e urina em cadelas com e sem piometra |
title_fullStr |
Fatores de virulência e similaridade genética de Escherichia coli isoladas de úteros e urina em cadelas com e sem piometra |
title_full_unstemmed |
Fatores de virulência e similaridade genética de Escherichia coli isoladas de úteros e urina em cadelas com e sem piometra |
title_sort |
Fatores de virulência e similaridade genética de Escherichia coli isoladas de úteros e urina em cadelas com e sem piometra |
author |
Oliveira, Raquel Peres de |
author_facet |
Oliveira, Raquel Peres de |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Rossi, Daise Aparecida |
dc.contributor.advisor1Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4708590E1 |
dc.contributor.referee1.fl_str_mv |
Rezende, Cíntia Silva Minafra e |
dc.contributor.referee1Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4707372E1 |
dc.contributor.referee2.fl_str_mv |
Ferreira, Fernando Antônio |
dc.contributor.referee2Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4780809A5 |
dc.contributor.authorLattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4250971J0 |
dc.contributor.author.fl_str_mv |
Oliveira, Raquel Peres de |
contributor_str_mv |
Rossi, Daise Aparecida Rezende, Cíntia Silva Minafra e Ferreira, Fernando Antônio |
dc.subject.por.fl_str_mv |
E. coli Genes de virulência Patogênese RAPD Resistência Cão - Doenças Útero - Histopatologia |
topic |
E. coli Genes de virulência Patogênese RAPD Resistência Cão - Doenças Útero - Histopatologia Virulence genes Pathogenesis Resistance CNPQ::CIENCIAS AGRARIAS::MEDICINA VETERINARIA |
dc.subject.eng.fl_str_mv |
Virulence genes Pathogenesis Resistance |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS AGRARIAS::MEDICINA VETERINARIA |
description |
This research evaluates the occurrence of Escherichia coli in the uterine contents and urine of healthy and pyometra female dogs. At the isolate was determined the presence of virulence genes, antimicrobial resistance and genetic proximity. The results were associated with histopathological changes and observed the relationship between uterine infections and urinary tract by the agent. Of the 87 samples, the results show bacterial growth in 46/87 (52.9%), 36/52 (69.2%) from the uterine contents and 10/35 (28.6%) of urine. Positivity was observed for E. coli 25/36 (69.4%) uterus samples with pyometra and 7/10 (70.0%) urine s samples. For the healthy female dogs was observed a growth of micro-organisms in 28/49 (57.1%) samples, but no one has been identified as E. coli, what means that agent was associated with sick animals. There was 100% sensitivity to ceftiofur, gentamicin, enrofloxacin, norfloxacin, ciprofloxacin, and cefoxitin and erythromycin resistance (100%), ampicillin (34.4%) and sulfonamide (25.0%). The isolate of E. coli showed a large number of virulence genes studied: 31/32 (96.9%) had the gene sfa, 19/32 (59.4%) afa, 15/32 (46.9%) pap, 17/32 (53.1%) and hly 22/32 (68.75%) cnf. Histopathological analysis found that 6/22 (27.3%) animals showed grade I in the classification, 9/22 (40.9%) grade II, and 7/22 (31.8%) grade III, being that, there was an interconnection between greater inflammatory response and highest number of virulence genes. The genetic similarity analysis showed high phylogenetic diversity in E. coli, but found that the strains isolated from the same animal had the similar genotype, as soon as cystitis and pyometra showed a direct relationship. The study demonstrates the importance of E. coli in pyometras female dogs and the presence of phenotypic and genotypic active in disease pathogenesis. |
publishDate |
2013 |
dc.date.available.fl_str_mv |
2013-12-17 2016-06-22T18:34:00Z |
dc.date.issued.fl_str_mv |
2013-08-26 |
dc.date.accessioned.fl_str_mv |
2016-06-22T18:34:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
OLIVEIRA, Raquel Peres de. Virulence factors and genetic similarity of escherichia coli isolated from uterus and urine in female dogs with and without pyometra. 2013. 89 f. Dissertação (Mestrado em Ciências Agrárias) - Universidade Federal de Uberlândia, Uberlândia, 2013. DOI https://doi.org/10.14393/ufu.di.2013.321 |
dc.identifier.uri.fl_str_mv |
https://repositorio.ufu.br/handle/123456789/13080 |
dc.identifier.doi.none.fl_str_mv |
https://doi.org/10.14393/ufu.di.2013.321 |
identifier_str_mv |
OLIVEIRA, Raquel Peres de. Virulence factors and genetic similarity of escherichia coli isolated from uterus and urine in female dogs with and without pyometra. 2013. 89 f. Dissertação (Mestrado em Ciências Agrárias) - Universidade Federal de Uberlândia, Uberlândia, 2013. DOI https://doi.org/10.14393/ufu.di.2013.321 |
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https://repositorio.ufu.br/handle/123456789/13080 https://doi.org/10.14393/ufu.di.2013.321 |
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Universidade Federal de Uberlândia |
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Programa de Pós-graduação em Ciências Veterinárias |
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UFU |
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BR |
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Ciências Agrárias |
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Universidade Federal de Uberlândia |
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