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Biblioteca (s) : |
INIA Las Brujas. |
Fecha : |
22/09/2022 |
Actualizado : |
22/09/2022 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
UMPIÉRREZ , A.; ERNST, E.; CARDOZO, A.; TORRES, A.; FERNÁNDEZ, M.; FRAGA, M.; VIGNOLI, R.; BADO, I.; VIDAL, R.; ZUNINO, P. |
Afiliación : |
ANA UMPIÉRREZ, Departamento de Microbiología, Instituto de Investigaciones Biológicas Clemente Estable, Montevideo, Uruguay; DÉBORAH ERNST, Departamento de Microbiología, Instituto de Investigaciones Biológicas Clemente Estable, Montevideo, Uruguay.; ANDREA CARDOZO, Departamento de Microbiología, Instituto de Investigaciones Biológicas Clemente Estable, Montevideo, Uruguay.; ALEXIA TORRES, Programa de Microbiología y Micología, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago, Chile.; MAGALÍ FERNÁNDEZ, Departamento de Microbiología, Instituto de Investigaciones Biológicas Clemente Estable, Montevideo, Uruguay.; MARTIN FRAGA COTELO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; RAFAEL VIGNOLI, Departamento de Bacteriología y Virología, Instituto de Higiene, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay.; INÉS BADO, Departamento de Bacteriología y Virología, Instituto de Higiene, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay.; ROBERTO VIDAL, Programa de Microbiología y Micología, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago, Chile; Instituto Milenio de Inmunología e Inmunoterapia, Facultad de Medicina, Universidad de Chile, Santiago, Chile.; PABLO ZUNINO, Departamento de Microbiología, Instituto de Investigaciones Biológicas Clemente Estable, Montevideo, Uruguay. |
Título : |
Non-O157 Shiga toxin-producing Escherichia coli with potential harmful profiles to humans are isolated from the faeces of calves in Uruguay. |
Fecha de publicación : |
2022 |
Fuente / Imprenta : |
Austral Journal of Veterinary Sciences, 2022, Vol. 54 Issue 2, p.45-53. doi: https://doi.org/10.4067/S0719-81322022000200045 |
Descripción física : |
SSN 0719-8132 (version on-line)
ISSN 0719-8000 (version print) |
ISSN : |
0719-8132 (print); e-ISSN 0719-8000 (electronic) |
DOI : |
10.4067/S0719-81322022000200045 |
Idioma : |
Inglés |
Notas : |
Article history: Received 12 October 2021; Accepted 30 December 2021; Published 09 May 2022.
Corresponding author: Ana Umpiérrez; Avenida Italia 3318, CP 11600, Montevideo, Uruguay; aumpierrez@iibce.edu.uy |
Contenido : |
ABSTRACT.- Shiga toxin-producing Escherichia coli (STEC) infections are responsible for acute illnesses and deaths in humans. Cattle and humans are exposed to STEC through faeces and contaminated food and water. The big six and O157 STEC serogroups are important food and water-borne human pathogens. Additionally, Stx1a, Stx2a and Stx2c subtypes are highly associated with the haemolytic uremic syndrome. This study aimed to determine Shiga toxin-subtypes, the presence of antigen 43 families, the genotypic and phenotypic antimicrobial susceptibility profiles, O-serogrouping, phylotypes and phylogenetic relatedness of STEC of calf origin. Sixteen STEC isolates from calf origin were analysed. PCR was performed to determine Stx subtypes, serogroups, the presence of ag43 I and IIand phylotypes. The antimicrobial profile was evaluated and the presence of PMQR and fosfomycin genes was determined by PCR. The clonal relatedness of STEC was studied by PFGE. The genotypes stx1a+c,stx1a+, stx1a+/stx2e+, stx1a+c/stx2e and stx2awere detected. Ag43 II was the most prevalent among subfamilies. STEC isolates were serotyped as O103 (n=5) and O111 (n=6). Fifty per cent of the isolates were classified as B1 phylogroup, 4/16 as E, 1/16 as C, and 1/16 as F. Non-O157 STEC isolates showed a high level of diversity, independent of the geographical and farm-origin. Isolates were resistant to ampicillin, ciprofloxacin, gentamicin, and fosfomycin-trometamol. The gene fosA7 was detected in 1 isolate. The virulence profiles, including Shiga toxin-subtypes and serogroups, denote the potential harm of non-O157 STEC isolates to humans. We also confirmed that circulating non-O157 STEC from cattle present genetic heterogeneity and are susceptible to antibiotics. MenosABSTRACT.- Shiga toxin-producing Escherichia coli (STEC) infections are responsible for acute illnesses and deaths in humans. Cattle and humans are exposed to STEC through faeces and contaminated food and water. The big six and O157 STEC serogroups are important food and water-borne human pathogens. Additionally, Stx1a, Stx2a and Stx2c subtypes are highly associated with the haemolytic uremic syndrome. This study aimed to determine Shiga toxin-subtypes, the presence of antigen 43 families, the genotypic and phenotypic antimicrobial susceptibility profiles, O-serogrouping, phylotypes and phylogenetic relatedness of STEC of calf origin. Sixteen STEC isolates from calf origin were analysed. PCR was performed to determine Stx subtypes, serogroups, the presence of ag43 I and IIand phylotypes. The antimicrobial profile was evaluated and the presence of PMQR and fosfomycin genes was determined by PCR. The clonal relatedness of STEC was studied by PFGE. The genotypes stx1a+c,stx1a+, stx1a+/stx2e+, stx1a+c/stx2e and stx2awere detected. Ag43 II was the most prevalent among subfamilies. STEC isolates were serotyped as O103 (n=5) and O111 (n=6). Fifty per cent of the isolates were classified as B1 phylogroup, 4/16 as E, 1/16 as C, and 1/16 as F. Non-O157 STEC isolates showed a high level of diversity, independent of the geographical and farm-origin. Isolates were resistant to ampicillin, ciprofloxacin, gentamicin, and fosfomycin-trometamol. The gene fosA7 was detected in 1 isolate. The ... Presentar Todo |
Palabras claves : |
Antimicrobial resistance; Non-O157 STEC; PLATAFORMA EN SALUD ANIMAL; Shiga toxin subtypes. |
Asunto categoría : |
L01 Ganadería |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/16768/1/10.4067-s0719-81322022000200045.pdf
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Marc : |
LEADER 03084naa a2200325 a 4500 001 1063578 005 2022-09-22 008 2022 bl uuuu u00u1 u #d 022 $a0719-8132 (print); e-ISSN 0719-8000 (electronic) 024 7 $a10.4067/S0719-81322022000200045$2DOI 100 1 $aUMPIÉRREZ , A. 245 $aNon-O157 Shiga toxin-producing Escherichia coli with potential harmful profiles to humans are isolated from the faeces of calves in Uruguay.$h[electronic resource] 260 $c2022 300 $cSSN 0719-8132 (version on-line) ISSN 0719-8000 (version print) 500 $aArticle history: Received 12 October 2021; Accepted 30 December 2021; Published 09 May 2022. Corresponding author: Ana Umpiérrez; Avenida Italia 3318, CP 11600, Montevideo, Uruguay; aumpierrez@iibce.edu.uy 520 $aABSTRACT.- Shiga toxin-producing Escherichia coli (STEC) infections are responsible for acute illnesses and deaths in humans. Cattle and humans are exposed to STEC through faeces and contaminated food and water. The big six and O157 STEC serogroups are important food and water-borne human pathogens. Additionally, Stx1a, Stx2a and Stx2c subtypes are highly associated with the haemolytic uremic syndrome. This study aimed to determine Shiga toxin-subtypes, the presence of antigen 43 families, the genotypic and phenotypic antimicrobial susceptibility profiles, O-serogrouping, phylotypes and phylogenetic relatedness of STEC of calf origin. Sixteen STEC isolates from calf origin were analysed. PCR was performed to determine Stx subtypes, serogroups, the presence of ag43 I and IIand phylotypes. The antimicrobial profile was evaluated and the presence of PMQR and fosfomycin genes was determined by PCR. The clonal relatedness of STEC was studied by PFGE. The genotypes stx1a+c,stx1a+, stx1a+/stx2e+, stx1a+c/stx2e and stx2awere detected. Ag43 II was the most prevalent among subfamilies. STEC isolates were serotyped as O103 (n=5) and O111 (n=6). Fifty per cent of the isolates were classified as B1 phylogroup, 4/16 as E, 1/16 as C, and 1/16 as F. Non-O157 STEC isolates showed a high level of diversity, independent of the geographical and farm-origin. Isolates were resistant to ampicillin, ciprofloxacin, gentamicin, and fosfomycin-trometamol. The gene fosA7 was detected in 1 isolate. The virulence profiles, including Shiga toxin-subtypes and serogroups, denote the potential harm of non-O157 STEC isolates to humans. We also confirmed that circulating non-O157 STEC from cattle present genetic heterogeneity and are susceptible to antibiotics. 653 $aAntimicrobial resistance 653 $aNon-O157 STEC 653 $aPLATAFORMA EN SALUD ANIMAL 653 $aShiga toxin subtypes 700 1 $aERNST, E. 700 1 $aCARDOZO, A. 700 1 $aTORRES, A. 700 1 $aFERNÁNDEZ, M. 700 1 $aFRAGA, M. 700 1 $aVIGNOLI, R. 700 1 $aBADO, I. 700 1 $aVIDAL, R. 700 1 $aZUNINO, P. 773 $tAustral Journal of Veterinary Sciences, 2022, Vol. 54 Issue 2, p.45-53. doi: https://doi.org/10.4067/S0719-81322022000200045
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INIA Las Brujas (LB) |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
Fecha actual : |
21/02/2014 |
Actualizado : |
16/06/2021 |
Tipo de producción científica : |
Documentos |
Autor : |
GIMÉNEZ, A.; RÍOS, A. |
Afiliación : |
AGUSTIN EDUARDO GIMÉNEZ FUREST, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; AMALIA RIOS GARCIA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Evaluación de fitotoxicidad de herbicidas aplicados después de un corte de forraje de la cebada. |
Fecha de publicación : |
1994 |
Fuente / Imprenta : |
ln: Jornada Cultivos de Invierno, 1994 abr : La Estanzuela [Memorias]. Montevideo (Uruguay): INIA, 1994. |
Páginas : |
p.5-6. |
Serie : |
(INIA Serie Actividades de Difusión; 4). |
Idioma : |
Español |
Thesagro : |
DOSIS DE APLICACION; EVALUACION; FITOTOXICIDAD; HERBICIDAS; HORDEUM VULGARE. |
Asunto categoría : |
-- |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/9931/1/UY.INIA.SAD.1994.n.4.pdf;cultivos#page=7
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Marc : |
LEADER 00667naa a2200205 a 4500 001 1046046 005 2021-06-16 008 1994 bl uuuu u00u1 u #d 100 1 $aGIMÉNEZ, A. 245 $aEvaluación de fitotoxicidad de herbicidas aplicados después de un corte de forraje de la cebada. 260 $c1994 300 $ap.5-6. 490 $a(INIA Serie Actividades de Difusión; 4). 650 $aDOSIS DE APLICACION 650 $aEVALUACION 650 $aFITOTOXICIDAD 650 $aHERBICIDAS 650 $aHORDEUM VULGARE 700 1 $aRÍOS, A. 773 $tln: Jornada Cultivos de Invierno, 1994 abr : La Estanzuela [Memorias]. Montevideo (Uruguay): INIA, 1994.
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