Genotypic evaluation of antimicrobial resistance in Staphylococcus spp. isolated from bovine clinical mastitis
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Arquivo brasileiro de medicina veterinária e zootecnia (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352021000200302 |
Resumo: | ABSTRACT Bovine clinical mastitis caused by Staphylococcus spp. is a serious and widespread disease in the world of dairy farming. Antimicrobial therapy is of fundamental importance in the prevention and treatment of infectious mastitis, but the indiscriminate use of antimicrobials acts as a determining factor for the spread of the disease. The present study evaluated the resistance profiles of 57 Staphylococcus spp. isolated from bovine clinical mastitis to beta-lactams and gentamicin, relating characteristics of phenotype (in vitro susceptibility tests) and genotype (detection and expression of genes encoding resistance - mecA, mecALGA251, blaZ, femA, femB, and aacA-aphD - using PCR and RT-PCR, respectively). One or more genes coding for resistance to different antimicrobials were detected in 50 Staphylococcus spp. isolates. The femA and femB genes were the most frequent (75.4% for both). The observed expression of the genes was as follows: blaZ (60%), femA (39.5%), aacA-aphD (50%), femB (32.6%), mecA (8.3%), and mecALGA251 (0%). Considering the relevance of the genus Staphylococcus to bovine mastitis, this study aimed to elucidate aspects regarding the genotypic and phenotypic profiles of these microorganisms so as to contribute to the development of effective strategies for mastitis control. |
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Genotypic evaluation of antimicrobial resistance in Staphylococcus spp. isolated from bovine clinical mastitisstaphylococcal mastitisantimicrobial resistance genesgene expressionABSTRACT Bovine clinical mastitis caused by Staphylococcus spp. is a serious and widespread disease in the world of dairy farming. Antimicrobial therapy is of fundamental importance in the prevention and treatment of infectious mastitis, but the indiscriminate use of antimicrobials acts as a determining factor for the spread of the disease. The present study evaluated the resistance profiles of 57 Staphylococcus spp. isolated from bovine clinical mastitis to beta-lactams and gentamicin, relating characteristics of phenotype (in vitro susceptibility tests) and genotype (detection and expression of genes encoding resistance - mecA, mecALGA251, blaZ, femA, femB, and aacA-aphD - using PCR and RT-PCR, respectively). One or more genes coding for resistance to different antimicrobials were detected in 50 Staphylococcus spp. isolates. The femA and femB genes were the most frequent (75.4% for both). The observed expression of the genes was as follows: blaZ (60%), femA (39.5%), aacA-aphD (50%), femB (32.6%), mecA (8.3%), and mecALGA251 (0%). Considering the relevance of the genus Staphylococcus to bovine mastitis, this study aimed to elucidate aspects regarding the genotypic and phenotypic profiles of these microorganisms so as to contribute to the development of effective strategies for mastitis control.Universidade Federal de Minas Gerais, Escola de Veterinária2021-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352021000200302Arquivo Brasileiro de Medicina Veterinária e Zootecnia v.73 n.2 2021reponame:Arquivo brasileiro de medicina veterinária e zootecnia (Online)instname:Universidade Federal de Minas Gerais (UFMG)instacron:UFMG10.1590/1678-4162-11984info:eu-repo/semantics/openAccessBenites,N.R.Hora,A.S.Mello,P.L.Laes,M.A.Brandão,P.E.Melville,P.A.Zuniga,E.eng2022-07-11T00:00:00Zoai:scielo:S0102-09352021000200302Revistahttps://www.scielo.br/j/abmvz/PUBhttps://old.scielo.br/oai/scielo-oai.phpjournal@vet.ufmg.br||abmvz.artigo@abmvz.org.br1678-41620102-0935opendoar:2022-07-11T00:00Arquivo brasileiro de medicina veterinária e zootecnia (Online) - Universidade Federal de Minas Gerais (UFMG)false |
dc.title.none.fl_str_mv |
Genotypic evaluation of antimicrobial resistance in Staphylococcus spp. isolated from bovine clinical mastitis |
title |
Genotypic evaluation of antimicrobial resistance in Staphylococcus spp. isolated from bovine clinical mastitis |
spellingShingle |
Genotypic evaluation of antimicrobial resistance in Staphylococcus spp. isolated from bovine clinical mastitis Benites,N.R. staphylococcal mastitis antimicrobial resistance genes gene expression |
title_short |
Genotypic evaluation of antimicrobial resistance in Staphylococcus spp. isolated from bovine clinical mastitis |
title_full |
Genotypic evaluation of antimicrobial resistance in Staphylococcus spp. isolated from bovine clinical mastitis |
title_fullStr |
Genotypic evaluation of antimicrobial resistance in Staphylococcus spp. isolated from bovine clinical mastitis |
title_full_unstemmed |
Genotypic evaluation of antimicrobial resistance in Staphylococcus spp. isolated from bovine clinical mastitis |
title_sort |
Genotypic evaluation of antimicrobial resistance in Staphylococcus spp. isolated from bovine clinical mastitis |
author |
Benites,N.R. |
author_facet |
Benites,N.R. Hora,A.S. Mello,P.L. Laes,M.A. Brandão,P.E. Melville,P.A. Zuniga,E. |
author_role |
author |
author2 |
Hora,A.S. Mello,P.L. Laes,M.A. Brandão,P.E. Melville,P.A. Zuniga,E. |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Benites,N.R. Hora,A.S. Mello,P.L. Laes,M.A. Brandão,P.E. Melville,P.A. Zuniga,E. |
dc.subject.por.fl_str_mv |
staphylococcal mastitis antimicrobial resistance genes gene expression |
topic |
staphylococcal mastitis antimicrobial resistance genes gene expression |
description |
ABSTRACT Bovine clinical mastitis caused by Staphylococcus spp. is a serious and widespread disease in the world of dairy farming. Antimicrobial therapy is of fundamental importance in the prevention and treatment of infectious mastitis, but the indiscriminate use of antimicrobials acts as a determining factor for the spread of the disease. The present study evaluated the resistance profiles of 57 Staphylococcus spp. isolated from bovine clinical mastitis to beta-lactams and gentamicin, relating characteristics of phenotype (in vitro susceptibility tests) and genotype (detection and expression of genes encoding resistance - mecA, mecALGA251, blaZ, femA, femB, and aacA-aphD - using PCR and RT-PCR, respectively). One or more genes coding for resistance to different antimicrobials were detected in 50 Staphylococcus spp. isolates. The femA and femB genes were the most frequent (75.4% for both). The observed expression of the genes was as follows: blaZ (60%), femA (39.5%), aacA-aphD (50%), femB (32.6%), mecA (8.3%), and mecALGA251 (0%). Considering the relevance of the genus Staphylococcus to bovine mastitis, this study aimed to elucidate aspects regarding the genotypic and phenotypic profiles of these microorganisms so as to contribute to the development of effective strategies for mastitis control. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-03-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352021000200302 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352021000200302 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1678-4162-11984 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Universidade Federal de Minas Gerais, Escola de Veterinária |
publisher.none.fl_str_mv |
Universidade Federal de Minas Gerais, Escola de Veterinária |
dc.source.none.fl_str_mv |
Arquivo Brasileiro de Medicina Veterinária e Zootecnia v.73 n.2 2021 reponame:Arquivo brasileiro de medicina veterinária e zootecnia (Online) instname:Universidade Federal de Minas Gerais (UFMG) instacron:UFMG |
instname_str |
Universidade Federal de Minas Gerais (UFMG) |
instacron_str |
UFMG |
institution |
UFMG |
reponame_str |
Arquivo brasileiro de medicina veterinária e zootecnia (Online) |
collection |
Arquivo brasileiro de medicina veterinária e zootecnia (Online) |
repository.name.fl_str_mv |
Arquivo brasileiro de medicina veterinária e zootecnia (Online) - Universidade Federal de Minas Gerais (UFMG) |
repository.mail.fl_str_mv |
journal@vet.ufmg.br||abmvz.artigo@abmvz.org.br |
_version_ |
1750220895121571840 |