Caracterização genética e eficácia antibacteriana de nanopartículas de polipirrol frente a Staphylococcus aureus isolados de mastite em vacas e cabras no estado de Pernambuco, Brasil
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Tipo de documento: | Tese |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações da UFRPE |
Texto Completo: | http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/7305 |
Resumo: | The aim of the present study was to characterize genetically isolates of Staphylococcus aureus (S. aureus) obtained from cows and goats with mastitis in Pernambuco state, Brazil. Additionally was evaluated the antibacterial efficacy of nanoparticles of polypyrrole (PPy) in water against biofilm producer or not S. aureus. For this, 150 isolates (123 from bovines and 27 from goats) were analyzed. The virulence factors involved in adhesion to host cells (fnbA/B and clfA/B), toxins (sea, - sei, tsst, hla and hlb), and capsular polysaccharide genes (cap5 and cap8) were amplified by PCR. A total of 138 isolates of S. aureus were evaluated for biofilm formation by spectrophotometry in microplates and Minimum Inhibition Concentration (MIC) and Minimum Bactericidal Concentration (MBC) of nanoparticles of PPy were measured. The toxic potential, defined by the number of toxins genes per isolate, showed that goat’s isolates had a higher potential. The cap8 genotype had more virulence potential by the number of virulence genes per isolate. The cap5 genotype was most frequent (70.67%), especially in bovine’s strains. The MIC and MBC of S. aureus to PPy were found in 125μɡ/mL in all strains, independent of biofilm production or not. New control measures should be implement, especially in goats that the isolates circulating had a higher toxic potential. In view of the positive preliminary results of PPy nanoparticles, future studies should be performed to obtain a product that contributes to mastitis control. |
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MOTA, Rinaldo AparecidoPINHEIRO JUNIOR, José WiltonSENA, Maria José deFREITAS, Manuela Figueiroa Lyra deMAIA, Rita de Cassia CarvalhoOLIVEIRA, Andrea Alice da Fonsecahttp://lattes.cnpq.br/6523036341408029ACOSTA ABAD, Atzel Candido2018-06-19T12:42:49Z2017-02-17ACOSTA ABAD, Atzel Candido. Caracterização genética e eficácia antibacteriana de nanopartículas de polipirrol frente a Staphylococcus aureus isolados de mastite em vacas e cabras no estado de Pernambuco, Brasil. 2017. 119 f. Tese (Programa de Pós-Graduação em Ciência Animal Tropical) - Universidade Federal Rural de Pernambuco, Recife.http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/7305The aim of the present study was to characterize genetically isolates of Staphylococcus aureus (S. aureus) obtained from cows and goats with mastitis in Pernambuco state, Brazil. Additionally was evaluated the antibacterial efficacy of nanoparticles of polypyrrole (PPy) in water against biofilm producer or not S. aureus. For this, 150 isolates (123 from bovines and 27 from goats) were analyzed. The virulence factors involved in adhesion to host cells (fnbA/B and clfA/B), toxins (sea, - sei, tsst, hla and hlb), and capsular polysaccharide genes (cap5 and cap8) were amplified by PCR. A total of 138 isolates of S. aureus were evaluated for biofilm formation by spectrophotometry in microplates and Minimum Inhibition Concentration (MIC) and Minimum Bactericidal Concentration (MBC) of nanoparticles of PPy were measured. The toxic potential, defined by the number of toxins genes per isolate, showed that goat’s isolates had a higher potential. The cap8 genotype had more virulence potential by the number of virulence genes per isolate. The cap5 genotype was most frequent (70.67%), especially in bovine’s strains. The MIC and MBC of S. aureus to PPy were found in 125μɡ/mL in all strains, independent of biofilm production or not. New control measures should be implement, especially in goats that the isolates circulating had a higher toxic potential. In view of the positive preliminary results of PPy nanoparticles, future studies should be performed to obtain a product that contributes to mastitis control.Objetivou-se neste estudo caracterizar geneticamente os isolados de Staphylococcus aureus (S. aureus) obtidos de vacas e cabras com mastite no estado de Pernambuco, Brasil. Também, avaliou-se a eficácia antibacteriana de nanopartículas de polipirrol (PPy) em água frente a S. aureus produtores ou não de biofilme. Para isto 150 isolados (123 de vacas e 27 de cabras) foram analisadas. Os fatores de virulência envolvidos na adesão às células do hospedeiro (fnbA/B e clfA/B), toxinas (sea - sei, tsst, hla e hlb) e os genes polissacáridos capsulares (cap5 e cap8 ) foram detectados pela PCR. 138 isolados de S. aureus foram avaliados quanto à formação de biofilme por espectrofotometria em microplacas e determinou-se a Concentração Mínima Inibitória (MIC) e a Concentração Mínima Bactericida (MBC) frente a nanopartículas de PPy. O potencial tóxigênico, indicado pelo número de genes de toxinas por isolado, revelou que os isolados de cabras apresentam um maior potencial. O genótipo cap8 apresentou maior potencial de virulência, indicado pelo número de genes apresentado por isolado. O genótipo cap5 foi mais frequente (70.67%), especialmente nos isolados de vacas. A MIC e a MBC do PPy frente a S. aureus foi de 125μɡ/mL para todos os isolados, independente da produção de biofilme. Novas medidas de controle deverão ser implementadas, em especial em rebanhos caprinos onde os isolados circulantes apresentaram maior potencial tóxico. Diante dos resultados preliminares promissores das nanopartículas de PPy frente a S. aureus, futuros estudos devem ser realizados para obtenção de um produto que contribua com o controle da mastite.Submitted by Mario BC (mario@bc.ufrpe.br) on 2018-06-19T12:42:49Z No. of bitstreams: 1 Atzel Candido Acosta Abad.pdf: 2296027 bytes, checksum: 77b9c26103182c9839f925ddfa1f8307 (MD5)Made available in DSpace on 2018-06-19T12:42:49Z (GMT). No. of bitstreams: 1 Atzel Candido Acosta Abad.pdf: 2296027 bytes, checksum: 77b9c26103182c9839f925ddfa1f8307 (MD5) Previous issue date: 2017-02-17Conselho Nacional de Pesquisa e Desenvolvimento Científico e Tecnológico - CNPqapplication/pdfporUniversidade Federal Rural de PernambucoPrograma de Pós-Graduação em Ciência Animal TropicalUFRPEBrasilDepartamento de Morfologia e Fisiologia AnimalStaphylococcus aureusPolipirrolAtividade antibacterianaBovinoCaprinoMastiteCIENCIAS AGRARIAS::MEDICINA VETERINARIACaracterização genética e eficácia antibacteriana de nanopartículas de polipirrol frente a Staphylococcus aureus isolados de mastite em vacas e cabras no estado de Pernambuco, Brasilinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesis-6143187600765506511600600600600-8922364187987396204453670264235017319-2555911436985713659info:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações da UFRPEinstname:Universidade Federal Rural de Pernambuco (UFRPE)instacron:UFRPEORIGINALAtzel Candido Acosta Abad.pdfAtzel Candido Acosta Abad.pdfapplication/pdf2296027http://www.tede2.ufrpe.br:8080/tede2/bitstream/tede2/7305/2/Atzel+Candido+Acosta+Abad.pdf77b9c26103182c9839f925ddfa1f8307MD52LICENSElicense.txtlicense.txttext/plain; charset=utf-82165http://www.tede2.ufrpe.br:8080/tede2/bitstream/tede2/7305/1/license.txtbd3efa91386c1718a7f26a329fdcb468MD51tede2/73052024-07-22 18:12:03.772oai:tede2: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Biblioteca Digital de Teses e Dissertaçõeshttp://www.tede2.ufrpe.br:8080/tede/PUBhttp://www.tede2.ufrpe.br:8080/oai/requestbdtd@ufrpe.br ||bdtd@ufrpe.bropendoar:2024-07-22T21:12:03Biblioteca Digital de Teses e Dissertações da UFRPE - Universidade Federal Rural de Pernambuco (UFRPE)false |
dc.title.por.fl_str_mv |
Caracterização genética e eficácia antibacteriana de nanopartículas de polipirrol frente a Staphylococcus aureus isolados de mastite em vacas e cabras no estado de Pernambuco, Brasil |
title |
Caracterização genética e eficácia antibacteriana de nanopartículas de polipirrol frente a Staphylococcus aureus isolados de mastite em vacas e cabras no estado de Pernambuco, Brasil |
spellingShingle |
Caracterização genética e eficácia antibacteriana de nanopartículas de polipirrol frente a Staphylococcus aureus isolados de mastite em vacas e cabras no estado de Pernambuco, Brasil ACOSTA ABAD, Atzel Candido Staphylococcus aureus Polipirrol Atividade antibacteriana Bovino Caprino Mastite CIENCIAS AGRARIAS::MEDICINA VETERINARIA |
title_short |
Caracterização genética e eficácia antibacteriana de nanopartículas de polipirrol frente a Staphylococcus aureus isolados de mastite em vacas e cabras no estado de Pernambuco, Brasil |
title_full |
Caracterização genética e eficácia antibacteriana de nanopartículas de polipirrol frente a Staphylococcus aureus isolados de mastite em vacas e cabras no estado de Pernambuco, Brasil |
title_fullStr |
Caracterização genética e eficácia antibacteriana de nanopartículas de polipirrol frente a Staphylococcus aureus isolados de mastite em vacas e cabras no estado de Pernambuco, Brasil |
title_full_unstemmed |
Caracterização genética e eficácia antibacteriana de nanopartículas de polipirrol frente a Staphylococcus aureus isolados de mastite em vacas e cabras no estado de Pernambuco, Brasil |
title_sort |
Caracterização genética e eficácia antibacteriana de nanopartículas de polipirrol frente a Staphylococcus aureus isolados de mastite em vacas e cabras no estado de Pernambuco, Brasil |
author |
ACOSTA ABAD, Atzel Candido |
author_facet |
ACOSTA ABAD, Atzel Candido |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
MOTA, Rinaldo Aparecido |
dc.contributor.advisor-co1.fl_str_mv |
PINHEIRO JUNIOR, José Wilton |
dc.contributor.referee1.fl_str_mv |
SENA, Maria José de |
dc.contributor.referee2.fl_str_mv |
FREITAS, Manuela Figueiroa Lyra de |
dc.contributor.referee3.fl_str_mv |
MAIA, Rita de Cassia Carvalho |
dc.contributor.referee4.fl_str_mv |
OLIVEIRA, Andrea Alice da Fonseca |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/6523036341408029 |
dc.contributor.author.fl_str_mv |
ACOSTA ABAD, Atzel Candido |
contributor_str_mv |
MOTA, Rinaldo Aparecido PINHEIRO JUNIOR, José Wilton SENA, Maria José de FREITAS, Manuela Figueiroa Lyra de MAIA, Rita de Cassia Carvalho OLIVEIRA, Andrea Alice da Fonseca |
dc.subject.por.fl_str_mv |
Staphylococcus aureus Polipirrol Atividade antibacteriana Bovino Caprino Mastite |
topic |
Staphylococcus aureus Polipirrol Atividade antibacteriana Bovino Caprino Mastite CIENCIAS AGRARIAS::MEDICINA VETERINARIA |
dc.subject.cnpq.fl_str_mv |
CIENCIAS AGRARIAS::MEDICINA VETERINARIA |
description |
The aim of the present study was to characterize genetically isolates of Staphylococcus aureus (S. aureus) obtained from cows and goats with mastitis in Pernambuco state, Brazil. Additionally was evaluated the antibacterial efficacy of nanoparticles of polypyrrole (PPy) in water against biofilm producer or not S. aureus. For this, 150 isolates (123 from bovines and 27 from goats) were analyzed. The virulence factors involved in adhesion to host cells (fnbA/B and clfA/B), toxins (sea, - sei, tsst, hla and hlb), and capsular polysaccharide genes (cap5 and cap8) were amplified by PCR. A total of 138 isolates of S. aureus were evaluated for biofilm formation by spectrophotometry in microplates and Minimum Inhibition Concentration (MIC) and Minimum Bactericidal Concentration (MBC) of nanoparticles of PPy were measured. The toxic potential, defined by the number of toxins genes per isolate, showed that goat’s isolates had a higher potential. The cap8 genotype had more virulence potential by the number of virulence genes per isolate. The cap5 genotype was most frequent (70.67%), especially in bovine’s strains. The MIC and MBC of S. aureus to PPy were found in 125μɡ/mL in all strains, independent of biofilm production or not. New control measures should be implement, especially in goats that the isolates circulating had a higher toxic potential. In view of the positive preliminary results of PPy nanoparticles, future studies should be performed to obtain a product that contributes to mastitis control. |
publishDate |
2017 |
dc.date.issued.fl_str_mv |
2017-02-17 |
dc.date.accessioned.fl_str_mv |
2018-06-19T12:42:49Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/doctoralThesis |
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doctoralThesis |
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publishedVersion |
dc.identifier.citation.fl_str_mv |
ACOSTA ABAD, Atzel Candido. Caracterização genética e eficácia antibacteriana de nanopartículas de polipirrol frente a Staphylococcus aureus isolados de mastite em vacas e cabras no estado de Pernambuco, Brasil. 2017. 119 f. Tese (Programa de Pós-Graduação em Ciência Animal Tropical) - Universidade Federal Rural de Pernambuco, Recife. |
dc.identifier.uri.fl_str_mv |
http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/7305 |
identifier_str_mv |
ACOSTA ABAD, Atzel Candido. Caracterização genética e eficácia antibacteriana de nanopartículas de polipirrol frente a Staphylococcus aureus isolados de mastite em vacas e cabras no estado de Pernambuco, Brasil. 2017. 119 f. Tese (Programa de Pós-Graduação em Ciência Animal Tropical) - Universidade Federal Rural de Pernambuco, Recife. |
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http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/7305 |
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por |
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Universidade Federal Rural de Pernambuco |
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UFRPE |
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Universidade Federal Rural de Pernambuco |
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