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Ballesteros-Monrreal MG, Mendez-Pfeiffer P, Ortíz B, Bolado-Martínez E, Álvarez-Ainza ML, Enciso-Martínez Y, Arenas-Hernández MMP, Diaz-Murrieta B, Barrios-Villa E, Valencia D. Uropathogenic E. coli and Hybrid Pathotypes in Mexican Women with Urinary Tract Infections: A Comprehensive Molecular and Phenotypic Overview. Curr Issues Mol Biol 2024; 46:5909-5928. [PMID: 38921024 PMCID: PMC11202577 DOI: 10.3390/cimb46060353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Revised: 06/07/2024] [Accepted: 06/08/2024] [Indexed: 06/27/2024] Open
Abstract
Uropathogenic Escherichia coli (UPEC) is the main cause of urinary tract infections (UTIs) and carries virulence and resistance factors often found in mobilizable genetic elements, such as plasmids or pathogenicity islands (PAIs). UPEC is part of the extraintestinal pathogenic E. coli (ExPEC), but hybrid strains possessing both diarrheagenic E. coli (DEC) and ExPEC traits, termed "hypervirulent", present a significant health threat. This study assessed the prevalence of UPEC PAIs, ExPEC sequence types (ST), DEC genes, carbapenemase and extended-spectrum β-lactamase (ESBL) phenotypes, resistance genotypes, and plasmids in 40 clinical isolates of UPEC. Results showed that 72.5% of isolates had PAIs, mainly PAI IV536 (53%). ESBL phenotypes were found in 65% of β-lactam-resistant isolates, with 100% of carbapenem-resistant isolates producing carbapenemase. The predominant ESBL gene was blaCTX-M-2 (60%), and the most common resistance gene in fluoroquinolone and aminoglycoside-resistant isolates was aac(6')Ib (93%). Plasmids were present in 57% of isolates, and 70% belonged to the ST131 clonal group. Molecular markers for DEC pathotypes were detected in 20 isolates, with 60% classified as hybrid pathotypes. These findings indicate significant pathogenic potential and the presence of hybrid pathotypes in E. coli UTI clinical isolates in the Mexican population.
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Affiliation(s)
- Manuel G. Ballesteros-Monrreal
- Departamento de Ciencias Químico-Biológicas y Agropecuarias, Universidad de Sonora, Caborca CP 83621, Sonora, Mexico; (M.G.B.-M.); (P.M.-P.); (Y.E.-M.); (B.D.-M.)
| | - Pablo Mendez-Pfeiffer
- Departamento de Ciencias Químico-Biológicas y Agropecuarias, Universidad de Sonora, Caborca CP 83621, Sonora, Mexico; (M.G.B.-M.); (P.M.-P.); (Y.E.-M.); (B.D.-M.)
| | - Bryan Ortíz
- Instituto de Investigaciones en Microbiología, Facultad de Ciencias, Universidad Nacional Autónoma de Honduras, Tegucigalpa 11101, Honduras;
| | - Enrique Bolado-Martínez
- Departamento de Ciencias Químico-Biológicas, Universidad de Sonora, Hermosillo CP 83000, Sonora, Mexico; (E.B.-M.); (M.L.Á.-A.)
| | - Maritza Lizeth Álvarez-Ainza
- Departamento de Ciencias Químico-Biológicas, Universidad de Sonora, Hermosillo CP 83000, Sonora, Mexico; (E.B.-M.); (M.L.Á.-A.)
| | - Yessica Enciso-Martínez
- Departamento de Ciencias Químico-Biológicas y Agropecuarias, Universidad de Sonora, Caborca CP 83621, Sonora, Mexico; (M.G.B.-M.); (P.M.-P.); (Y.E.-M.); (B.D.-M.)
| | - Margarita M. P. Arenas-Hernández
- Posgrado en Microbiología, Centro de Investigación en Ciencias Microbiológicas, Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, Ciudad Universitaria, Puebla CP 72570, Pue, Mexico
| | - Betsaida Diaz-Murrieta
- Departamento de Ciencias Químico-Biológicas y Agropecuarias, Universidad de Sonora, Caborca CP 83621, Sonora, Mexico; (M.G.B.-M.); (P.M.-P.); (Y.E.-M.); (B.D.-M.)
| | - Edwin Barrios-Villa
- Departamento de Ciencias Químico-Biológicas y Agropecuarias, Universidad de Sonora, Caborca CP 83621, Sonora, Mexico; (M.G.B.-M.); (P.M.-P.); (Y.E.-M.); (B.D.-M.)
| | - Dora Valencia
- Departamento de Ciencias Químico-Biológicas y Agropecuarias, Universidad de Sonora, Caborca CP 83621, Sonora, Mexico; (M.G.B.-M.); (P.M.-P.); (Y.E.-M.); (B.D.-M.)
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Furlan JPR, Ramos MS, Sellera FP, Gonzalez IHL, Ramos PL, Stehling EG. Gram-negative bacterial diversity and evidence of international clones of multidrug-resistant strains in zoo animals. Integr Zool 2024; 19:417-423. [PMID: 37984552 DOI: 10.1111/1749-4877.12790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2023]
Abstract
Enterobacterales and Pseudomonas aeruginosa have been colonizing or infecting wild hosts and antimicrobial-resistant strains are present in mammals and birds. Furthermore, international high-risk clones of multidrug-resistant Escherichia coli are identified and the implications of multidrug-resistant Gram-negative bacteria in zoo animals are discussed.
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Affiliation(s)
- João Pedro Rueda Furlan
- Department of Clinical Analyses, Toxicology and Food Science, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Micaela Santana Ramos
- Department of Clinical Analyses, Toxicology and Food Science, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Fábio Parra Sellera
- Department of Internal Medicine, School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, Brazil
- School of Veterinary Medicine, Metropolitan University of Santos, Santos, Brazil
| | - Irys Hany Lima Gonzalez
- Coordination of Wild Fauna, Secretary of Environment, Infrastructure and Logistics, São Paulo, Brazil
| | - Patrícia Locosque Ramos
- Coordination of Wild Fauna, Secretary of Environment, Infrastructure and Logistics, São Paulo, Brazil
| | - Eliana Guedes Stehling
- Department of Clinical Analyses, Toxicology and Food Science, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
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Liu Y, Chen X, Luifu J, Zhao J, He X, Xie T. Extended-spectrum β-lactamase-producing Enterobacteriaceae from ready-to-eat foods: Genetic diversity and antibiotic susceptibility. Food Sci Nutr 2023; 11:5565-5572. [PMID: 37701212 PMCID: PMC10494609 DOI: 10.1002/fsn3.3513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 05/15/2023] [Accepted: 06/05/2023] [Indexed: 09/14/2023] Open
Abstract
Ready-to-eat (RTE) foods are widely marketed in China and are important components of everyday diet. In this study, a total of 2000 RTE food samples were analyzed, 252 (12.60%) of which were positive for Enterobacteriaceae, and 48 were identified as containing extended-spectrum β-lactamase (ESBL)-producing Escherichia coli isolates. Furthermore, the antimicrobial resistance patterns of these isolates to 14 antimicrobial agents revealed that most isolates were resistant to aminoglycosides and β-lactam antibiotics. The TEM-type gene was prevalent in our isolates (79.17%). The isolates (n = 48) were classified into three clusters based on the ERIC-PCR results. Forty-eight sequence types were found without duplicates, revealing genetic variation and relatedness among isolates. Thus, the results demonstrated the presence of ESBL-producing Enterobacteriaceae in Chinese RTE foods. The results of this study provide insights into the spread of antibiotic-resistant strains and improve understanding of microbial risks.
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Affiliation(s)
- Yao Liu
- Guangdong Eco‐engineering PolytechnicGuangzhouChina
| | - Xinghua Chen
- Guangdong Eco‐engineering PolytechnicGuangzhouChina
| | - Junwei Luifu
- Guangdong Eco‐engineering PolytechnicGuangzhouChina
| | - Jing Zhao
- Guangdong Eco‐engineering PolytechnicGuangzhouChina
| | - Xujun He
- Guangdong Eco‐engineering PolytechnicGuangzhouChina
| | - Tengfei Xie
- Guangdong Eco‐engineering PolytechnicGuangzhouChina
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Mohamed HS, Houmed Aboubaker M, Dumont Y, Didelot MN, Michon AL, Galal L, Jean-Pierre H, Godreuil S. Multidrug-Resistant Enterobacterales in Community-Acquired Urinary Tract Infections in Djibouti, Republic of Djibouti. Antibiotics (Basel) 2022; 11:antibiotics11121740. [PMID: 36551396 PMCID: PMC9774282 DOI: 10.3390/antibiotics11121740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 11/28/2022] [Accepted: 11/29/2022] [Indexed: 12/12/2022] Open
Abstract
The emergence and spread of multidrug resistant Enterobacterales (MDR-E) are a global public health issue. This problem also concerns urinary tract infections (UTI), which are the second most frequent infections after respiratory infections. The objective of this study was to determine MDR-E frequency and to characterize MDR-E isolates from patients with community-acquired UTIs in Djibouti, Republic of Djibouti. From 800 clinical urinary samples collected at the Mer Rouge Laboratory, Djibouti, from January to July 2019, 142 were identified as Enterobacterales (age range of the 142 patients mean age is 42 years.) Mass spectrometry analysis of these isolates identified 117 Escherichia coli, 14 Klebsiella pneumoniae, 2 Proteus mirabilis, 4 Enterobacter spp., 4 Providencia stuartii and 1 Franconibacter helveticus. Antibiotic susceptibility testing (disk diffusion method) of these 142 isolates detected 68 MDR-E (68/142 = 48%): 65 extended-spectrum bêta lactamase- (ESBL), 2 carbapenemase- (one also ESBL), and 1 cephalosporinase-producer. Multiplex PCR and sequencing showed that the 65 ESBL-producing isolates carried genes encoding CTX-M enzymes (CTX-M-15 in 97% and CTX-M-9 in 3% of isolates). Two isolates harboured a gene encoding the OXA-48-like carbapenemase, and one the gene encoding the AmpC CMY-2 cephalosporinase. Genes implicated in resistance to quinolones (qnrB, aac (6')-Ib-cr, qnrD, oqxA and B) also were detected. Among the E. coli phylogroups, B2 was the most common phylogenetic group (21% of MDR-E isolates and 26% of non-MDR-E isolates), followed by A (14% and 12%), B1 (9% and 7%), D (3% and 3%), F (3% and 3%) and E (2% and 2%). This study highlights the high frequency of ESBL producers and the emergence of carbapenemase-producers among Enterobacterales causing community-acquired UTIs in Djibouti.
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Affiliation(s)
- Hasna Said Mohamed
- Laboratoire de Bactériologie, Centre Hospitalier Universitaire de Montpellier, 34295 Montpellier, France
- MIVEGEC, IRD, CNRS, Université de Montpellier, 34394 Montpellier, France
- Hospital General Peltier de Djibouti, Djibouti City 2123, Djibouti
- Laboratoire de Biologie Médicale de la Mer Rouge, Djibouti City 1119, Djibouti
- Correspondence: ; Tel.: +253-77-818-524
| | - Mohamed Houmed Aboubaker
- Laboratoire de Biologie Médicale de la Mer Rouge, Djibouti City 1119, Djibouti
- Laboratoire de la Caisse Nationale de Sécurité Sociale, Djibouti City 696, Djibouti
| | - Yann Dumont
- Laboratoire de Bactériologie, Centre Hospitalier Universitaire de Montpellier, 34295 Montpellier, France
- MIVEGEC, IRD, CNRS, Université de Montpellier, 34394 Montpellier, France
| | - Marie-Noëlle Didelot
- Laboratoire de Bactériologie, Centre Hospitalier Universitaire de Montpellier, 34295 Montpellier, France
- MIVEGEC, IRD, CNRS, Université de Montpellier, 34394 Montpellier, France
| | - Anne-Laure Michon
- Laboratoire de Bactériologie, Centre Hospitalier Universitaire de Montpellier, 34295 Montpellier, France
- MIVEGEC, IRD, CNRS, Université de Montpellier, 34394 Montpellier, France
| | - Lokman Galal
- MIVEGEC, IRD, CNRS, Université de Montpellier, 34394 Montpellier, France
| | - Hélène Jean-Pierre
- Laboratoire de Bactériologie, Centre Hospitalier Universitaire de Montpellier, 34295 Montpellier, France
- MIVEGEC, IRD, CNRS, Université de Montpellier, 34394 Montpellier, France
| | - Sylvain Godreuil
- Laboratoire de Bactériologie, Centre Hospitalier Universitaire de Montpellier, 34295 Montpellier, France
- MIVEGEC, IRD, CNRS, Université de Montpellier, 34394 Montpellier, France
- Jeune Equipe Associée à IRD (JEAI), FASORAM, 34394 Montpellier, France
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Bastidas-Caldes C, Romero-Alvarez D, Valdez-Vélez V, Morales RD, Montalvo-Hernández A, Gomes-Dias C, Calvopiña M. Extended-Spectrum Beta-Lactamases Producing Escherichia coli in South America: A Systematic Review with a One Health Perspective. Infect Drug Resist 2022; 15:5759-5779. [PMID: 36204394 PMCID: PMC9531622 DOI: 10.2147/idr.s371845] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 08/04/2022] [Indexed: 11/23/2022] Open
Affiliation(s)
- Carlos Bastidas-Caldes
- One Health Research Group, Faculty of Engineering and Applied Sciences, Universidad de las Américas, Quito, Ecuador
- Doctoral Program in Public and Animal Health, Faculty of Veterinary Medicine, University of Extremadura, Cáceres, Spain
- Correspondence: Carlos Bastidas-Caldes, One Health Research Group, Faculty of Engineering and Applied Sciences, Universidad de las Américas, Quito, 170124, Ecuador, Tel +593 983 174949, Email
| | - Daniel Romero-Alvarez
- One Health Reserch Group, Faculty of Medicine, Universidad de las Américas, Quito, Ecuador
- Biodiversity Institute and Department of Ecology & Evolutionary Biology, The University of Kansas, Lawrence, KS, USA
| | - Victor Valdez-Vélez
- One Health Research Group, Faculty of Engineering and Applied Sciences, Universidad de las Américas, Quito, Ecuador
| | - Roberto D Morales
- One Health Research Group, Faculty of Engineering and Applied Sciences, Universidad de las Américas, Quito, Ecuador
| | - Andrés Montalvo-Hernández
- One Health Research Group, Faculty of Engineering and Applied Sciences, Universidad de las Américas, Quito, Ecuador
| | - Cicero Gomes-Dias
- Department of Basic Health Sciences, Federal University of Health Sciences of Porto Alegre, Porto Alegre, Brazil
| | - Manuel Calvopiña
- One Health Reserch Group, Faculty of Medicine, Universidad de las Américas, Quito, Ecuador
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Cabrera-Rodríguez LE, Miralles-Suarez AI, Ones-Roque R, Torres-Herrera Y, Pantaleón-Hernández M. Prevalencia de aislamientos de Escherichia coli y Klebsiella pneumoniae productoras de betalactamasas de espectro extendido en pacientes cubanos ambulatorios con infección del tracto urinario. REVISTA DE LA FACULTAD DE MEDICINA 2022. [DOI: 10.15446/revfacmed.v71n2.99767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Introducción. Las infecciones del tracto urinario (UTI) adquiridas en la comunidad causadas por enterobacterias productoras de β-lactamasas de espectro extendido (BLEE) son un fenómeno creciente a nivel mundial.
Objetivo. Determinar la prevalencia de aislamientos de Escherichia coli y Klebsiella pneumoniae productoras de BLEE obtenidos de muestras de orina de pacientes ambulatorios con ITU adquirida en la comunidad, así como los perfiles de resistencia a antibióticos asociados al fenotipo BLEE.
Materiales y métodos. Estudio descriptivo retrospectivo. Se analizaron 304 aislamientos de E. coli y 34 de K. pneumoniae obtenidos de urocultivos de pacientes con ITU adquirida en la comunidad atendidos entre enero 1 de 2019 y diciembre 31 de 2020 en el Hospital Clínico-Quirúrgico Docente Aleida Fernández Chardiet, provincia Mayabeque, Cuba. Se realizó un análisis bivariado (prueba x2) para determinar diferencias en las tasas de resistencia antibiótica entre las bacterias productoras de BLEE y las no productoras.
Resultados. El 16.77% (51/304) y el 17.64 % (6/34) de los aislamientos de E. coli y K. pneumoniae se clasificaron como bacterias productoras de BLEE. En el caso de los aislados de E. coli productoras de BLEE, BLEE+ciprofloxacina fue el patrón de resistencia más frecuente (22/51; 43.13%), seguido por BLEE+ciprofloxacino y amikacina (14/51; 27.45%). Además, 41.17% (21/51); fueron multirresistentes. En el caso de K. pneumoniae productoras de BLEE, predominó el patrón de resistencia BLEE + ciprofloxacino, amikacina y nitrofurantoina (2/6; 33.33%), y 50 % (3/6) fueron multirresistentes.
Conclusiones. Los resultados confirman la presencia de E. coli y K. pneumoniae productoras de BLEE, con una alta prevalencia de multirresistencia en pacientes con ITU adquirida en la comunidad en el municipio de Güines, Cuba.
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Genomic insights of high-risk clones of ESBL-producing Escherichia coli isolated from community infections and commercial meat in southern Brazil. Sci Rep 2022; 12:9354. [PMID: 35672430 PMCID: PMC9174282 DOI: 10.1038/s41598-022-13197-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Accepted: 05/05/2022] [Indexed: 12/04/2022] Open
Abstract
During a microbiological and genomic surveillance study conducted to investigate the molecular epidemiology of extended-spectrum β-lactamase (ESBL)-producing Escherichia coli from community-acquired urinary tract infections (UTI) and commercial meat samples, in a Brazilian city with a high occurrence of infections by ESBL-producing bacteria, we have identified the presence of CTX-M (-2, -14, -15, -24, -27 and -55)-producing E. coli of international clones ST38, ST117, ST131 and ST354. The ST131 was more prevalent in human samples, and worryingly the high-risk ST131-C1-M27 was identified in human infections for the first time. We also detected CTX-M-55-producing E. coli ST117 from meat samples (i.e., chicken and pork) and human infections. Moreover, the clinically relevant CTX-M-24-positive E. coli ST354 clone was detected for the first time in human samples. In summary, our results highlight a potential of commercialized meat as a reservoir of high-priority E. coli lineages in the community, whereas the identification of E. coli ST131-C1-M27 indicates that novel pandemic clones have emerged in Brazil, constituting a public health issue.
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Tano ZN, Kobayashi RK, Candido EP, Dias JB, Perugini LF, Vespero EC, Pavanelli WR. Susceptibility to first choice antimicrobial treatment for urinary tract infections to Escherichia coli isolates from women urine samples in community South Brazil. Braz J Infect Dis 2022; 26:102366. [PMID: 35594950 PMCID: PMC9217753 DOI: 10.1016/j.bjid.2022.102366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 04/12/2022] [Accepted: 05/01/2022] [Indexed: 10/28/2022] Open
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Tanabe RHS, Dias RCB, Orsi H, de Lira DRP, Vieira MA, dos Santos LF, Ferreira AM, Rall VLM, Mondelli AL, Gomes TAT, Camargo CH, Hernandes RT. Characterization of Uropathogenic Escherichia coli Reveals Hybrid Isolates of Uropathogenic and Diarrheagenic (UPEC/DEC) E. coli. Microorganisms 2022; 10:microorganisms10030645. [PMID: 35336220 PMCID: PMC8950336 DOI: 10.3390/microorganisms10030645] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 03/08/2022] [Accepted: 03/15/2022] [Indexed: 02/05/2023] Open
Abstract
(1) Background: Pathogenic Escherichia coli are divided into two groups: diarrheagenic (DEC) and extraintestinal pathogenic (ExPEC) E. coli. ExPEC causing urinary tract infections (UTIs) are termed uropathogenic E. coli (UPEC) and are the most common cause of UTIs worldwide. (2) Methods: Here, we characterized 112 UPEC in terms of phylogroup, serotype, the presence of virulence factor-encoding genes, and antimicrobial resistance. (3) Results: The majority of the isolates were assigned into the phylogroup B2 (41.07%), and the serogroups O6 (12.5%) and O25 (8.9%) were the most frequent. Five hybrid UPEC (4.5%), with markers from two DEC pathotypes, i.e., atypical enteropathogenic (aEPEC) and enteroaggregative (EAEC) E. coli, were identified, and designated UPEC/aEPEC (one isolate) and UPEC/EAEC (four isolates), respectively. Three UPEC/EAEC harbored genes from the pap operon, and the UPEC/aEPEC carried ibeA. The highest resistance rates were observed for ampicillin (46.4%) and trimethoprim/sulfamethoxazole (34.8%), while 99.1% of the isolates were susceptible to nitrofurantoin and/or fosfomycin. Moreover, 9.8% of the isolates were identified as Extended Spectrum β-Lactamase producers, including one hybrid UPEC/EAEC. (4) Conclusion: Our data reinforce that hybrid UPEC/DEC are circulating in the city of Botucatu, Brazil, as uropathogens. However, how and whether these combinations of genes influence their pathogenicity is a question that remains to be elucidated.
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Affiliation(s)
- Rodrigo H. S. Tanabe
- Departamento de Ciências Químicas e Biológicas (Setor de Microbiologia e Imunologia), Instituto de Biociências, Universidade Estadual Paulista (UNESP), Botucatu 18618-689, SP, Brazil; (R.H.S.T.); (R.C.B.D.); (H.O.); (D.R.P.d.L.); (M.A.V.); (V.L.M.R.)
| | - Regiane C. B. Dias
- Departamento de Ciências Químicas e Biológicas (Setor de Microbiologia e Imunologia), Instituto de Biociências, Universidade Estadual Paulista (UNESP), Botucatu 18618-689, SP, Brazil; (R.H.S.T.); (R.C.B.D.); (H.O.); (D.R.P.d.L.); (M.A.V.); (V.L.M.R.)
| | - Henrique Orsi
- Departamento de Ciências Químicas e Biológicas (Setor de Microbiologia e Imunologia), Instituto de Biociências, Universidade Estadual Paulista (UNESP), Botucatu 18618-689, SP, Brazil; (R.H.S.T.); (R.C.B.D.); (H.O.); (D.R.P.d.L.); (M.A.V.); (V.L.M.R.)
| | - Daiany R. P. de Lira
- Departamento de Ciências Químicas e Biológicas (Setor de Microbiologia e Imunologia), Instituto de Biociências, Universidade Estadual Paulista (UNESP), Botucatu 18618-689, SP, Brazil; (R.H.S.T.); (R.C.B.D.); (H.O.); (D.R.P.d.L.); (M.A.V.); (V.L.M.R.)
| | - Melissa A. Vieira
- Departamento de Ciências Químicas e Biológicas (Setor de Microbiologia e Imunologia), Instituto de Biociências, Universidade Estadual Paulista (UNESP), Botucatu 18618-689, SP, Brazil; (R.H.S.T.); (R.C.B.D.); (H.O.); (D.R.P.d.L.); (M.A.V.); (V.L.M.R.)
| | - Luís F. dos Santos
- Centro de Bacteriologia, Instituto Adolfo Lutz, São Paulo 01246-902, SP, Brazil; (L.F.d.S.); (C.H.C.)
| | - Adriano M. Ferreira
- Hospital das Clínicas da Faculdade de Medicina de Botucatu, Botucatu 18607-741, SP, Brazil;
| | - Vera L. M. Rall
- Departamento de Ciências Químicas e Biológicas (Setor de Microbiologia e Imunologia), Instituto de Biociências, Universidade Estadual Paulista (UNESP), Botucatu 18618-689, SP, Brazil; (R.H.S.T.); (R.C.B.D.); (H.O.); (D.R.P.d.L.); (M.A.V.); (V.L.M.R.)
| | - Alessandro L. Mondelli
- Departamento de Clínica Médica, Faculdade de Medicina, Universidade Estadual Paulista (UNESP), Botucatu 18618-970, SP, Brazil;
| | - Tânia A. T. Gomes
- Departamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal de São Paulo-Escola Paulista de Medicina (UNIFESP-EPM), São Paulo 04023-062, SP, Brazil;
| | - Carlos H. Camargo
- Centro de Bacteriologia, Instituto Adolfo Lutz, São Paulo 01246-902, SP, Brazil; (L.F.d.S.); (C.H.C.)
| | - Rodrigo T. Hernandes
- Departamento de Ciências Químicas e Biológicas (Setor de Microbiologia e Imunologia), Instituto de Biociências, Universidade Estadual Paulista (UNESP), Botucatu 18618-689, SP, Brazil; (R.H.S.T.); (R.C.B.D.); (H.O.); (D.R.P.d.L.); (M.A.V.); (V.L.M.R.)
- Correspondence: ; Tel.: +55-14-3880-0446
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Sadeghi M, Sedigh Ebrahim-Saraie H, Mojtahedi A. Prevalence of ESBL and AmpC genes in E. coli isolates from urinary tract infections in the north of Iran. New Microbes New Infect 2022; 45:100947. [PMID: 34984104 PMCID: PMC8693013 DOI: 10.1016/j.nmni.2021.100947] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Revised: 10/02/2021] [Accepted: 11/03/2021] [Indexed: 12/26/2022] Open
Abstract
Beta-lactam resistance in Gram-negative bacteria, especially Escherichia coli, is a main clinical problem. It is often caused by the production of β-lactamases, particularly extended-spectrum β-lactamases (ESBLs) or AmpC enzymes. This study was undertaken to characterize ESBL and AmpC producers among Escherichia coli isolates from urine samples. During six months, 263 E. coli isolates were detected by standard biochemical tests. The isolates were screened for ESBL production by the double-disk synergy test using Ceftazidime (30 μg) and Cefotaxime (30 μg) disks and confirmed by combined disk diffusion test using Clavulanic acid. AmpC production was confirmed by an AmpC disk test based on filter paper disks impregnated with EDTA. The presence of genes encoding TEM, SHV, CTX-M, CIT, FOX, MOX, ACC, and EBC were detected by PCR. 263 E. coli isolates were selected for the combined disk (Ceftazidime, Cefotaxime, and Clavulanic acid) assay in the disk agar diffusion test. In the combined disk assay, among 263 isolates, 121 (46%) isolates were detected as ESBLs, and none of the isolates were AmpC producers. PCR performed on all ESBL producers and blaSHV, blaTEM, and blaCTX-M were detected in 42 (34.7%), 44 (36.4%), and 47 (38.8%) cases, respectively. Also, from 48 Isolates with zone diameters of less than or equal to 18 mm to Cefoxitin, 7 (14.6%), 4 (8.3%), and 9 (18.8%) cases contained MOX, EBC, and CIT genes, respectively. DHA, FOX, and ACC genes were not detected in any sample. Since pathogens evolve in the hospital setting, updating local data, such as this research, offers scientific evidence to improve the outcome of nosocomial infections.
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Affiliation(s)
- M. Sadeghi
- Burn and Regenerative Medicine Research Center, Guilan University of Medical Sciences, Rasht, Iran
| | - H. Sedigh Ebrahim-Saraie
- Razi Clinical Research Development Unit, Razi Hospital, Guilan University of Medical Sciences, Rasht, Iran
| | - A. Mojtahedi
- Department of Microbiology, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran
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Dias LL, Nakamura-Silva R, de Oliveira Junior GAT, Mego IOG, Mendonça GS, Pitondo-Silva A. Hospital liquid waste contaminated with multidrug-resistant bacteria raises a public health hazard alert in Brazil. ENVIRONMENTAL MONITORING AND ASSESSMENT 2021; 193:719. [PMID: 34642819 DOI: 10.1007/s10661-021-09477-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 09/22/2021] [Indexed: 06/13/2023]
Abstract
The spread of multidrug-resistant bacteria (MDR) is a global concern because it poses a serious threat to public health. The inadequate handling of Health Services Waste (HSW) and, therefore, the incorrect disposal of infected liquids can cause contamination of the environment, the emergence of diseases caused by MDR bacteria, and the loss of the population's quality of life. The present study aimed to survey the bacteria and their antimicrobial resistance profiles, present in the liquid residues from infected surgeries performed in five years, often discharged into the sewage network of a large tertiary hospital located in the city of Uberlândia, which is considered one of the main economic and demographic centers of Brazil. A systematic and retrospective survey of the medical records of patients who underwent infected surgeries from January 2015 to December 2019 was carried out at the referred hospital. The bacterial species were previously identified and characterized for the antimicrobial susceptibility profile by the VITEK 2 automated system (bioMérieux, Brazil). In the evaluated period, 1658 infected surgeries were performed and the results showed 661 bacterial strains distributed in 48 different species, being Staphylococcus aureus the most prevalent species. The vast majority (85.6%) showed some type of antimicrobial resistance among these strains, with more than half (54.6%) being MDR. The results of this work raise an alert and concern for the risks to the environment and public health by dumping these infected liquid wastes directly into the sewage system without proper prior decontamination.
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Affiliation(s)
- Leila Lúcia Dias
- Programa de Pós-Graduação em Tecnologia Ambiental, Universidade de Ribeirão Preto - UNAERP., Av. Costábile Romano, 2201, São Paulo, 14096-900, Ribeirão Preto, Brazil
- Faculdade de Medicina, Universidade Federal de Uberlândia, Av. Pará, 1720, Minas Gerais, 38400-902, Uberlândia, Brazil
| | - Rafael Nakamura-Silva
- Programa de Pós-Graduação em Tecnologia Ambiental, Universidade de Ribeirão Preto - UNAERP., Av. Costábile Romano, 2201, São Paulo, 14096-900, Ribeirão Preto, Brazil
| | | | - Ivan Orlando Gonzales Mego
- Faculdade de Medicina, Universidade Federal de Uberlândia, Av. Pará, 1720, Minas Gerais, 38400-902, Uberlândia, Brazil
| | - Guilherme Silva Mendonça
- Faculdade de Medicina, Universidade Federal de Uberlândia, Av. Pará, 1720, Minas Gerais, 38400-902, Uberlândia, Brazil
| | - André Pitondo-Silva
- Programa de Pós-Graduação em Tecnologia Ambiental, Universidade de Ribeirão Preto - UNAERP., Av. Costábile Romano, 2201, São Paulo, 14096-900, Ribeirão Preto, Brazil.
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Virulence Genes Profile and Antimicrobial Susceptibility of Community-Acquired Bacterial Urinary Tract Infections in a Brazilian Hospital. Curr Microbiol 2021; 78:3913-3923. [PMID: 34522976 DOI: 10.1007/s00284-021-02650-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 08/30/2021] [Indexed: 10/20/2022]
Abstract
Urinary tract infections (UTI) are one of the most common diseases worldwide and Escherichia coli is the most common causative bacteria. Empirical treatment is challenging due to antimicrobial or multidrug-resistance. The aims of this study were to determine the uropathogens and their antimicrobial susceptibility profile, as well as to identify the phylogroups and virulence genes of E. coli strains, associated with community-acquired UTI in outpatients admitted at a Brazilian Hospital in southeast Brazil. In total, 47 bacterial strains were isolated from 47 patients, 44 women and 2 men (no gender record from one patient). The age of the patients whose urine culture were positive varied from 0 (less than one month) to 104 years. Most of the isolates were E. coli (41/47), followed by Klebsiella pneumoniae (2/47), Klebsiella variicola/Klebsiella aerogenes (1/47), Pseudomonas aeruginosa (1/47), Proteus mirabilis (1/47), and Citrobacter koseri (1/47). Most E. coli strains were classified as phylogroup B2 (15/41 = 36.59%) and B1 (12/41 = 29.27%) and the most common virulence genes among E. coli strains were fimH (31/41 = 75.61%), iutA (21/41 = 51.22%), and tratT (16/41 = 39.02%). Among the E. coli strains, 59% were multidrug-resistance and strains that were ampicillin, sulfamethoxazole/trimethoprim, or tetracycline-resistant exhibited more chance to be multidrug-resistance, with an odds ratio of 100.00 [95% confidence interval (CI) 9.44-1059.26], 22.50 (95% CI 3.95-128.30), and 12.83 (95% CI 2.68-61.45), respectively. Our results showed that E. coli was the main etiological agent identified and demonstrated high frequency of multidrug-resistance and virulence factors in bacterial strains isolated from UTIs.
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Nascimento JAS, Santos FF, Valiatti TB, Santos-Neto JF, M. Santos AC, Cayô R, Gales AC, A. T. Gomes T. Frequency and Diversity of Hybrid Escherichia coli Strains Isolated from Urinary Tract Infections. Microorganisms 2021; 9:microorganisms9040693. [PMID: 33801702 PMCID: PMC8065829 DOI: 10.3390/microorganisms9040693] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 03/20/2021] [Accepted: 03/23/2021] [Indexed: 12/20/2022] Open
Abstract
(1) Background: Hybrid uropathogenic Escherichia coli (UPEC) strains carry virulence markers of the diarrheagenic E. coli (DEC) pathotypes, which may increase their virulence potential. This study analyzed the frequency and virulence potential of hybrid strains among 452 UPEC strains. (2) Methods: Strains were tested for the DEC virulence diagnostic genes’ presence by polymerase chain reaction (PCR). Those carrying at least one gene were classified as hybrid and further tested for 10 UPEC and extraintestinal pathogenic E. coli (ExPEC) virulence genes and phylogenetic classification. Also, their ability to produce hemolysis, adhere to HeLa and renal HEK 293T cells, form a biofilm, and antimicrobial susceptibility were evaluated. (3) Results: Nine (2%) hybrid strains were detected; seven of them carried aggR and two, eae, and were classified as UPEC/EAEC (enteroaggregative E. coli) and UPEC/aEPEC (atypical enteropathogenic E. coli), respectively. They belonged to phylogroups A (five strains), B1 (three), and D (one), and adhered to both cell lineages tested. Only the UPEC/EAEC strains were hemolytic (five strains) and produced biofilm. One UPEC/aEPEC strain was resistant to third-generation cephalosporins and carried blaCTX-M-15. (4) Conclusions: Our findings contribute to understanding the occurrence and pathogenicity of hybrid UPEC strains, which may cause more severe infections.
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Affiliation(s)
- Júllia A. S. Nascimento
- Laboratório Experimental de Patogenicidade de Enterobactérias (LEPE), Disciplina de Microbiologia, Departamento de Microbiologia, Imunologia e Parasitologia (DMIP), Escola Paulista de Medicina (EPM), Universidade Federal de São Paulo (UNIFESP), São Paulo 04023-062, Brazil; (J.A.S.N.); (F.F.S.); (T.B.V.); (J.F.S.-N.); (A.C.M.S.)
| | - Fernanda F. Santos
- Laboratório Experimental de Patogenicidade de Enterobactérias (LEPE), Disciplina de Microbiologia, Departamento de Microbiologia, Imunologia e Parasitologia (DMIP), Escola Paulista de Medicina (EPM), Universidade Federal de São Paulo (UNIFESP), São Paulo 04023-062, Brazil; (J.A.S.N.); (F.F.S.); (T.B.V.); (J.F.S.-N.); (A.C.M.S.)
- Laboratório Alerta, Disciplina de Infectologia, Departamento de Medicina, Escola Paulista de Medicina (EPM), Universidade Federal de São Paulo (UNIFESP), São Paulo 04039-032, Brazil; (R.C.); (A.C.G.)
| | - Tiago B. Valiatti
- Laboratório Experimental de Patogenicidade de Enterobactérias (LEPE), Disciplina de Microbiologia, Departamento de Microbiologia, Imunologia e Parasitologia (DMIP), Escola Paulista de Medicina (EPM), Universidade Federal de São Paulo (UNIFESP), São Paulo 04023-062, Brazil; (J.A.S.N.); (F.F.S.); (T.B.V.); (J.F.S.-N.); (A.C.M.S.)
- Laboratório Alerta, Disciplina de Infectologia, Departamento de Medicina, Escola Paulista de Medicina (EPM), Universidade Federal de São Paulo (UNIFESP), São Paulo 04039-032, Brazil; (R.C.); (A.C.G.)
| | - José F. Santos-Neto
- Laboratório Experimental de Patogenicidade de Enterobactérias (LEPE), Disciplina de Microbiologia, Departamento de Microbiologia, Imunologia e Parasitologia (DMIP), Escola Paulista de Medicina (EPM), Universidade Federal de São Paulo (UNIFESP), São Paulo 04023-062, Brazil; (J.A.S.N.); (F.F.S.); (T.B.V.); (J.F.S.-N.); (A.C.M.S.)
| | - Ana Carolina M. Santos
- Laboratório Experimental de Patogenicidade de Enterobactérias (LEPE), Disciplina de Microbiologia, Departamento de Microbiologia, Imunologia e Parasitologia (DMIP), Escola Paulista de Medicina (EPM), Universidade Federal de São Paulo (UNIFESP), São Paulo 04023-062, Brazil; (J.A.S.N.); (F.F.S.); (T.B.V.); (J.F.S.-N.); (A.C.M.S.)
| | - Rodrigo Cayô
- Laboratório Alerta, Disciplina de Infectologia, Departamento de Medicina, Escola Paulista de Medicina (EPM), Universidade Federal de São Paulo (UNIFESP), São Paulo 04039-032, Brazil; (R.C.); (A.C.G.)
- Laboratório de Imunologia e Microbiologia (LIB), Setor de Biologia Molecular, Microbiologia e Imunologia, Departamento de Ciências Biológicas (DCB), Instituto de Ciências Ambientais, Químicas e Farmacêuticas (ICAQF), Universidade Federal de São Paulo (UNIFESP), Diadema 09972-270, Brazil
| | - Ana C. Gales
- Laboratório Alerta, Disciplina de Infectologia, Departamento de Medicina, Escola Paulista de Medicina (EPM), Universidade Federal de São Paulo (UNIFESP), São Paulo 04039-032, Brazil; (R.C.); (A.C.G.)
| | - Tânia A. T. Gomes
- Laboratório Experimental de Patogenicidade de Enterobactérias (LEPE), Disciplina de Microbiologia, Departamento de Microbiologia, Imunologia e Parasitologia (DMIP), Escola Paulista de Medicina (EPM), Universidade Federal de São Paulo (UNIFESP), São Paulo 04023-062, Brazil; (J.A.S.N.); (F.F.S.); (T.B.V.); (J.F.S.-N.); (A.C.M.S.)
- Correspondence: ; Tel.: +55-11-5576-4848
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Endophytic Lifestyle of Global Clones of Extended-Spectrum β-Lactamase-Producing Priority Pathogens in Fresh Vegetables: a Trojan Horse Strategy Favoring Human Colonization? mSystems 2021; 6:6/1/e01125-20. [PMID: 33563779 PMCID: PMC7883542 DOI: 10.1128/msystems.01125-20] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
The global spread of antibiotic-resistant bacteria and their resistance genes is a critical issue that is no longer restricted to hospital settings, but also represents a growing problem involving environmental and food safety. In this study, we have performed a microbiological and genomic investigation of critical priority pathogens resistant to broad-spectrum cephalosporins and showing endophytic lifestyles in fresh vegetables sold in a country with high endemicity of extended-spectrum β-lactamases (ESBLs). We report the isolation of international high-risk clones of CTX-M-15-producing Escherichia coli, belonging to clonal complexes CC38 and CC648, and Klebsiella pneumoniae of complex CC307 from macerated tissue of surface-sterilized leaves of spinach, cabbage, arugula, and lettuce. Regardless of species, all ESBL-positive isolates were able to endophytically colonize common bean (Phaseolus vulgaris) seedlings, showed resistance to acid pH, and had a multidrug-resistant (MDR) profile to clinically relevant antibiotics (i.e., broad-spectrum cephalosporins, aminoglycosides, and fluoroquinolones). Genomic analysis of CTX-M-producing endophytic Enterobacterales revealed a wide resistome (antibiotics, biocides, disinfectants, and pesticides) and virulome, and genes for endophytic fitness and for withstanding acidic conditions. Transferable IncFIB and IncHI2A plasmids carried bla CTX-M-15 genes and, additionally, an IncFIB plasmid (named pKP301cro) also harbored genes encoding resistance to heavy metals. These data support the hypothesis that fresh vegetables marketed for consumption can act as a figurative Trojan horse for the hidden spread of international clones of critical WHO priority pathogens producing ESBLs, and/or their resistance genes, to humans and other animals, which is a critical issue within a food safety and broader public and environmental health perspective.IMPORTANCE Extended-spectrum β-lactamases (ESBL)-producing Enterobacterales are a leading cause of human and animal infections, being classified as critical priority pathogens by the World Health Organization. Epidemiological studies have shown that spread of ESBL-producing bacteria is not a problem restricted to hospitals, but also represents a growing problem involving environmental and food safety. In this regard, CTX-M-type β-lactamases have become the most widely distributed and clinically relevant ESBLs worldwide. Here, we have investigated the occurrence and genomic features of ESBL-producing Enterobacterales in surface-sterilized fresh vegetables. We have uncovered that international high-risk clones of CTX-M-15-producing Escherichia coli and Klebsiella pneumoniae harboring a wide resistome and virulome, carry additional genes for endophytic fitness and resistance to acidic conditions. Furthermore, we have demonstrated that these CTX-M-15-positive isolates are able to endophytically colonize plant tissues. Therefore, we believe that fresh vegetables can act as a figurative Trojan horse for the hidden spread of critical priority pathogens exhibiting endophytic lifestyles.
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Gozi KS, Deus Ajude LPT, Barroso MDV, Silva CRD, Peiró JR, Mendes LCN, Nogueira MCL, Casella T. Potentially Pathogenic Multidrug-Resistant Escherichia coli in Lamb Meat. Microb Drug Resist 2021; 27:1071-1078. [PMID: 33417827 DOI: 10.1089/mdr.2020.0488] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Extended-spectrum cephalosporin (ESC) resistance remains a threat since ESC are important antimicrobials used to treat infections in humans and animals. Escherichia coli is an important source of ESC-resistance genes, such as those encoding extended-spectrum β-lactamases (ESBLs). E. coli is a common commensal of lambs. Reports that contaminated food can be a source of ESC-resistant bacteria in humans and that ESBL-producing E. coli are found in sheep in Brazil led us to survey their presence in retail lamb meat. Twenty-five samples intended for human consumption were screened for ESC-resistant E. coli, and the isolates were characterized. IncI1-blaCTX-M-8 and IncHI2-blaCTX-M-2 were the main plasmids responsible for ESC resistance. The plasmids harbored common ESBL genes in Enterobacteriaceae from food-producing animals in Brazil. IncI1-blaCTX-M-14 and IncF-blaCTX-M-55 plasmids, associated with human infections, were also detected. Few CTX-M-producing E. coli have been clustered by typing methods, and some may be genetically pathogenic. The findings indicate the presence of diverse strains of E. coli, harboring important ESBL genes, in lamb meat in Brazil. Surveillance of ESC-resistant bacteria could reduce the spread of antimicrobial resistance through the food chain.
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Affiliation(s)
- Katia Suemi Gozi
- Centro de Investigação de Microrganismos, FAMERP, São José do Rio Preto, Brazil
| | | | | | | | - Juliana Regina Peiró
- Faculdade de Medicina Veterinária, São Paulo State University (UNESP), Araçatuba, Brazil
| | | | | | - Tiago Casella
- Centro de Investigação de Microrganismos, FAMERP, São José do Rio Preto, Brazil.,Hospital de Base de São José do Rio Preto, São José do Rio Preto, Brazil
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Cho HH. Comparative Analysis of Uropathogenic Escherichia coli ST131 and Non-ST131 Isolated from Urinary Tract Infection Patients in Daejeon. KOREAN JOURNAL OF CLINICAL LABORATORY SCIENCE 2020. [DOI: 10.15324/kjcls.2020.52.4.342] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- Hye Hyun Cho
- Departments of Biomedical Laboratory Science, Daejeon Institute of Science and Technology, Daejeon, Korea
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17
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Valiatti TB, Santos FF, Santos ACM, Nascimento JAS, Silva RM, Carvalho E, Sinigaglia R, Gomes TAT. Genetic and Virulence Characteristics of a Hybrid Atypical Enteropathogenic and Uropathogenic Escherichia coli (aEPEC/UPEC) Strain. Front Cell Infect Microbiol 2020; 10:492. [PMID: 33134184 PMCID: PMC7550682 DOI: 10.3389/fcimb.2020.00492] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 08/08/2020] [Indexed: 12/23/2022] Open
Abstract
Hybrid strains of Escherichia coli combine virulence traits of diarrheagenic (DEC) and extraintestinal pathogenic E. coli (ExPEC), but it is poorly understood whether these combined features improve the virulence potential of such strains. We have previously identified a uropathogenic E. coli (UPEC) strain (UPEC 252) harboring the eae gene that encodes the adhesin intimin and is located in the locus of enterocyte effacement (LEE) pathogenicity island. The LEE-encoded proteins allow enteropathogenic E. coli (EPEC) and enterohemorrhagic E. coli (EHEC) to form attaching and effacing (A/E) lesions in enterocytes. We sought to characterize UPEC 252 through whole-genome sequencing and phenotypic virulence assays. Genome analysis unveiled that this strain harbors a complete LEE region, with more than 97% of identity comparing to E2348/69 (EPEC) and O157:H7 Sakai (EHEC) prototype strains, which was functional, since UPEC 252 expressed the LEE-encoded proteins EspB and intimin and induced actin accumulation foci in HeLa cells. Phylogenetic analysis performed comparing 1,000 single-copy shared genes clustered UPEC 252 with atypical EPEC strains that belong to the sequence type 10, phylogroup A. Additionally, UPEC 252 was resistant to the bactericidal power of human serum and colonized cells of the urinary (T24 and HEK293-T) and intestinal (Caco-2 and LS174T) tracts. Our findings suggest that UPEC 252 is an atypical EPEC strain that emerges as a hybrid strain (aEPEC/UPEC), which could colonize new niches and potentially cause intestinal and extraintestinal infections.
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Affiliation(s)
- Tiago B Valiatti
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Fernanda F Santos
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Ana C M Santos
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Júllia A S Nascimento
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Rosa M Silva
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Eneas Carvalho
- Laboratório de Bacteriologia, Instituto Butantan, São Paulo, Brazil
| | - Rita Sinigaglia
- Centro de Microscopia Eletrônica, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Tânia A T Gomes
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
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18
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Furlan JPR, Savazzi EA, Stehling EG. Widespread high-risk clones of multidrug-resistant extended-spectrum β-lactamase-producing Escherichia coli B2-ST131 and F-ST648 in public aquatic environments. Int J Antimicrob Agents 2020; 56:106040. [PMID: 32479889 DOI: 10.1016/j.ijantimicag.2020.106040] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 03/19/2020] [Accepted: 05/21/2020] [Indexed: 01/18/2023]
Abstract
Aquatic environments are considered a reservoir for the dissemination of multidrug-resistant (MDR) bacteria, principally Escherichia coli, with the consequent spread of acquired antimicrobial resistance genes (ARGs). Widespread high-risk clones of MDR E. coli are responsible for human infections worldwide. This study aimed to characterise, through whole-genome sequencing (WGS), isolates of MDR E. coli harbouring ARGs obtained from public aquatic environments in Brazil. MDR E. coli isolates were obtained from rivers, streams and lakes that presented different Water Quality Index records and were submitted to WGS. The resistome, mobilome and virulome showed a great diversity of ARGs, plasmids and virulence genes, respectively. In addition, mutations in the quinolone resistance-determining regions of GyrA, ParC and ParE as well as several metal resistance genes (MRGs) and antibacterial biocide resistance genes (ABGs) were detected. Typing and subtyping of MDR E. coli revealed different lineages, with two belonging to widespread high-risk clones (i.e. B2-ST131-fimH30 and F-ST648-fimH27), which are grouped by core genome multilocus sequence typing (cgMLST) in clusters with E. coli lineages obtained from different sources distributed worldwide. MDR bacteria carrying MRGs and ABGs have emerged as a global human and environmental health problem. Detection of widespread high-risk clones calls for attention to the dissemination of fluoroquinolone-resistant QnrS1- and CTX-M-producing E. coli lineages associated with human infections in public aquatic environments.
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Affiliation(s)
- João Pedro Rueda Furlan
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo (USP), Av. do Café s/n, Monte Alegre, Ribeirão Preto - SP, 14040-903, Brazil
| | | | - Eliana Guedes Stehling
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo (USP), Av. do Café s/n, Monte Alegre, Ribeirão Preto - SP, 14040-903, Brazil.
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Halaji M, Shahidi S, Atapour A, Ataei B, Feizi A, Havaei SA. Characterization of Extended-Spectrum β-Lactamase-Producing Uropathogenic Escherichia coli Among Iranian Kidney Transplant Patients. Infect Drug Resist 2020; 13:1429-1437. [PMID: 32523361 PMCID: PMC7237106 DOI: 10.2147/idr.s248572] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Accepted: 05/05/2020] [Indexed: 12/21/2022] Open
Abstract
Introduction The aim of this study was to investigate the antimicrobial susceptibility pattern and the presence of ESBLs among the uropathogenic Escherichia coli (UPEC) isolated from kidney transplant patients (KTP) and community-acquired urinary tract infections (UTIs) using phenotypic and molecular methods. Materials and Methods A total of 111 pure cultures of UPEC isolates were collected from 65 and 46 of non-KTP and KTPs with UTIs. The pattern and ESBL production of the strains were evaluated. PCR reaction to detect the presence of bla SHV, bla TEM, and bla CTX-M genes was performed. Results The results revealed that most of UPEC isolates obtained from KTPs and control group were resistant to trimethoprim/sulfamethoxazole (84.8% vs 46.2%), while carbapenems (100% sensitivity) were the most effective against UPEC isolates. ESBL-producing strains were significantly more frequent in KTPs compared with control group (43.5% vs 23.1%, P = 0.021). The molecular results revealed that 53.2% (59/111), 45% (50/111), and 5.4% (6/111) of isolates harbored bla CTX-M, bla TEM, and bla SHV genes, respectively. Of the genes investigated, bla CTX-M and bla TEM genes were significantly higher among KTP than the control group. Conclusion Our results showed a high proportion of multidrug-resistant and ESBL-producing isolates, which most of them harbor blaCTX-M. A significant high co-resistance to different classes of antibiotics was reported from ESBL-producing UPEC from KTPs, which remains a serious clinical challenge.
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Affiliation(s)
- Mehrdad Halaji
- Department of Microbiology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.,Nosocomial Infection Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Shahrzad Shahidi
- Isfahan Kidney Diseases Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Abdolamir Atapour
- Isfahan Kidney Diseases Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Behrooz Ataei
- Infectious Diseases and Tropical Medicine Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Awat Feizi
- Department of Biostatistics and Epidemiology, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Seyed Asghar Havaei
- Department of Microbiology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.,Infectious Diseases and Tropical Medicine Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
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Halaji M, Shahidi S, Atapour A, Ataei B, Feizi A, Havaei SA. <p>Characterization of Extended-Spectrum β-Lactamase-Producing Uropathogenic <em>Escherichia coli</em> Among Iranian Kidney Transplant Patients</p>. Infect Drug Resist 2020. [DOI: 10.2147/idr.s248572 and 21=21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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21
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Hassuna NA, Khairalla AS, Farahat EM, Hammad AM, Abdel-Fattah M. Molecular characterization of Extended-spectrum β lactamase- producing E. coli recovered from community-acquired urinary tract infections in Upper Egypt. Sci Rep 2020. [PMID: 32066805 DOI: 10.1038/s41598-020] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/25/2023] Open
Abstract
Treatment of community urinary tract infections (UTIs) caused by extended-spectrum β lactamase (ESBL)- producing Escherichia coli (E. coli) is more expensive than treating ESBL-negative opposites. Evaluation of the prevalence of ESBL-production among urinary E. coli isolates is crucial due to its great impact on the choice of proper antimicrobials. Accordingly, the aim of this work was to detect and characterize ESBL-producing E. coli isolated from outpatients with signs of UTIs in Upper Egypt. Urinary E. coli isolates were identified by 16S rRNA and their ESBL-production was confirmed by Modified Double Disc Synergy Test (MDDST) and ESBL- CHROMagar media. Isolates were then subjected to Polymerase Chain Reaction (PCR) for new Clermont phylogrouping, ESBL genes detection and CTX-M typing. The study enrolled 583 patients with clinically diagnosed UTIs. Uropathogens were found in 400 urine samples (68.6%) out of which 134 E. coli isolates were identified. Among the examined uropathogenic E. coli (UPEC), 80 (59.7%) were recognized as ESBL-producers. Greater than half of the ESBL-producers were multi-drug resistant (MDR) (62%). All of them were susceptible to meropenem. Most of the E. coli isolates were distributed in 4 phylogenetic groups: B2 = 42 (52.5%), F = 17 (21.25%) and Clade I or II = 10 (12.5%). The predominant gene types were TEM 60 (75%) and CTX-M gene 45 (56.25%). The CTX-M-1 group was the most prevalent (62.2%), including the CTX-M-15 enzyme, followed by the CTX-M-2 group, CTX-M-8 group and CTX-M-9 group. In conclusion, the results present alarming evidence of a serious spread of ESBL genes in Egypt, especially the epidemiological CTX-M 15, with the potential for the dissemination of MDR UPEC strains in the community.
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Affiliation(s)
- Noha A Hassuna
- Medical Microbiology and Immunology Department. Faculty of Medicine, Minia University, Minia, Egypt.
| | - Ahmed S Khairalla
- Microbiology and Immunology Department, Faculty of Pharmacy, Beni-Suef University, Beni-Suef, Egypt
- Department of Science and Engineering, Red Deer College, Red Deer, Alberta, Canada
| | - Eman M Farahat
- Microbiology and Botany Department, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt
| | - Adel M Hammad
- Microbiology Department, Faculty of Agriculture, Minia University, Minia, Egypt
| | - Medhat Abdel-Fattah
- Microbiology and Botany Department, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt
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Hassuna NA, Khairalla AS, Farahat EM, Hammad AM, Abdel-Fattah M. Molecular characterization of Extended-spectrum β lactamase- producing E. coli recovered from community-acquired urinary tract infections in Upper Egypt. Sci Rep 2020; 10:2772. [PMID: 32066805 PMCID: PMC7026060 DOI: 10.1038/s41598-020-59772-z] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Accepted: 01/29/2020] [Indexed: 01/29/2023] Open
Abstract
Treatment of community urinary tract infections (UTIs) caused by extended-spectrum β lactamase (ESBL)- producing Escherichia coli (E. coli) is more expensive than treating ESBL-negative opposites. Evaluation of the prevalence of ESBL-production among urinary E. coli isolates is crucial due to its great impact on the choice of proper antimicrobials. Accordingly, the aim of this work was to detect and characterize ESBL-producing E. coli isolated from outpatients with signs of UTIs in Upper Egypt. Urinary E. coli isolates were identified by 16S rRNA and their ESBL-production was confirmed by Modified Double Disc Synergy Test (MDDST) and ESBL- CHROMagar media. Isolates were then subjected to Polymerase Chain Reaction (PCR) for new Clermont phylogrouping, ESBL genes detection and CTX-M typing. The study enrolled 583 patients with clinically diagnosed UTIs. Uropathogens were found in 400 urine samples (68.6%) out of which 134 E. coli isolates were identified. Among the examined uropathogenic E. coli (UPEC), 80 (59.7%) were recognized as ESBL-producers. Greater than half of the ESBL-producers were multi-drug resistant (MDR) (62%). All of them were susceptible to meropenem. Most of the E. coli isolates were distributed in 4 phylogenetic groups: B2 = 42 (52.5%), F = 17 (21.25%) and Clade I or II = 10 (12.5%). The predominant gene types were TEM 60 (75%) and CTX-M gene 45 (56.25%). The CTX-M-1 group was the most prevalent (62.2%), including the CTX-M-15 enzyme, followed by the CTX-M-2 group, CTX-M-8 group and CTX-M-9 group. In conclusion, the results present alarming evidence of a serious spread of ESBL genes in Egypt, especially the epidemiological CTX-M 15, with the potential for the dissemination of MDR UPEC strains in the community.
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Affiliation(s)
- Noha A Hassuna
- Medical Microbiology and Immunology Department. Faculty of Medicine, Minia University, Minia, Egypt.
| | - Ahmed S Khairalla
- Microbiology and Immunology Department, Faculty of Pharmacy, Beni-Suef University, Beni-Suef, Egypt.,Department of Science and Engineering, Red Deer College, Red Deer, Alberta, Canada
| | - Eman M Farahat
- Microbiology and Botany Department, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt
| | - Adel M Hammad
- Microbiology Department, Faculty of Agriculture, Minia University, Minia, Egypt
| | - Medhat Abdel-Fattah
- Microbiology and Botany Department, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt
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23
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Araújo Lima AV, da Silva SM, do Nascimento Júnior JAA, Correia MDS, Luz AC, Leal-Balbino TC, da Silva MV, Lima JLDC, Maciel MAV, Napoleão TH, Oliveira MBMD, Paiva PMG. Occurrence and Diversity of Intra- and Interhospital Drug-Resistant and Biofilm-Forming Acinetobacter baumannii and Pseudomonas aeruginosa. Microb Drug Resist 2020; 26:802-814. [PMID: 31916896 DOI: 10.1089/mdr.2019.0214] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Acinetobacter baumannii and Pseudomonas aeruginosa are the most relevant Gram-negative bacteria associated with hospital and opportunistic infections. This study aimed to evaluate the dynamics of drug-resistant A. baumannii and P. aeruginosa and biofilm formers from two public hospitals in northeastern Brazil. One hundred isolates (35 from A. baumannii and 65 from P. aeruginosa) were identified using the automated Vitek®2 Compact method (bioMérieux) and confirmed using the MALDI-TOF (MS) mass spectrometry technique. Molecular experiments were performed by polymerase chain reaction (PCR) to detect the frequency of blaKPC, blaIMP, blaVIM, and blaSHV genes. The biofilm formation potential was evaluated using crystal violet in Luria Bertani Miller and trypticase soy broth culture media under the following conditions: at standard concentration, one quarter (25%) of the standard concentration and supplemented with 1% glucose. In addition, the genetic diversity of the isolates was verified by the ERIC-PCR technique. Isolates presented distinct resistance profiles with a high level of beta-lactam resistance. The highest index of genes detected was blaKPC (60%), followed by blaSHV (39%), blaVIM (8%), and blaIMP (1%). All the isolates were sensitive to the polymyxins tested and formed biofilms at different intensities. Twelve clones of A. baumannii and eight of P. aeruginosa were identified, of which few were indicative of intra- and interhospital dissemination. This study reveals the dispersion dynamics of these isolates in the hospital environment. The results demonstrate the importance of monitoring programs to combat the spread of these pathogens.
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Affiliation(s)
- Ana Vitoria Araújo Lima
- Departamento de Bioquímica, Centro de Biociências/Universidade Federal de Pernambuco, Recife, Brazil
| | - Sivoneide Maria da Silva
- Departamento de Bioquímica, Centro de Biociências/Universidade Federal de Pernambuco, Recife, Brazil
| | | | | | - Ana Carolina Luz
- Departamento de Microbiologia, FIOCRUZ Aggeu Magalhães, Recife, Brazil
| | | | - Márcia Vanusa da Silva
- Departamento de Bioquímica, Centro de Biociências/Universidade Federal de Pernambuco, Recife, Brazil
| | | | | | - Thiago Henrique Napoleão
- Departamento de Bioquímica, Centro de Biociências/Universidade Federal de Pernambuco, Recife, Brazil
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24
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da Cruz Campos AC, Cavallo FM, Andrade NL, van Dijl JM, Couto N, Zrimec J, Lo Ten Foe JR, Rosa ACP, Damasco PV, Friedrich AW, Chlebowicz-Flissikowska MA, Rossen JWA. Determining the Virulence Properties of Escherichia coli ST131 Containing Bacteriocin-Encoding Plasmids Using Short- and Long-Read Sequencing and Comparing Them with Those of Other E. coli Lineages. Microorganisms 2019; 7:E534. [PMID: 31698849 PMCID: PMC6920910 DOI: 10.3390/microorganisms7110534] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 10/29/2019] [Accepted: 11/01/2019] [Indexed: 01/17/2023] Open
Abstract
Escherichia coli ST131 is a clinical challenge due to its multidrug resistant profile and successful global spread. They are often associated with complicated infections, particularly urinary tract infections (UTIs). Bacteriocins play an important role to outcompete other microorganisms present in the human gut. Here, we characterized bacteriocin-encoding plasmids found in ST131 isolates of patients suffering from a UTI using both short- and long-read sequencing. Colicins Ia, Ib and E1, and microcin V, were identified among plasmids that also contained resistance and virulence genes. To investigate if the potential transmission range of the colicin E1 plasmid is influenced by the presence of a resistance gene, we constructed a strain containing a plasmid which had both the colicin E1 and blaCMY-2 genes. No difference in transmission range was found between transformant and wild-type strains. However, a statistically significantly difference was found in adhesion and invasion ability. Bacteriocin-producing isolates from both ST131 and non-ST131 lineages were able to inhibit the growth of other E. coli isolates, including other ST131. In summary, plasmids harboring bacteriocins give additional advantages for highly virulent and resistant ST131 isolates, improving the ability of these isolates to compete with other microbiota for a niche and thereby increasing the risk of infection.
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Affiliation(s)
- Ana Carolina da Cruz Campos
- Departamento de Microbiologia, Imunologia e Parasitologia, Universidade do Estado do Rio de Janeiro, Rio de Janeiro 20550-170, Brazil; (A.C.d.C.C.); (N.L.A.); (A.C.P.R.)
- Department of Medical Microbiology and Infection Prevention, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713GZ Groningen, The Netherlands; (F.M.C.); (J.M.v.D.); (N.C.); (J.R.L.T.F.); (A.W.F.); (M.A.C.-F.)
| | - Francis M. Cavallo
- Department of Medical Microbiology and Infection Prevention, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713GZ Groningen, The Netherlands; (F.M.C.); (J.M.v.D.); (N.C.); (J.R.L.T.F.); (A.W.F.); (M.A.C.-F.)
| | - Nathália L. Andrade
- Departamento de Microbiologia, Imunologia e Parasitologia, Universidade do Estado do Rio de Janeiro, Rio de Janeiro 20550-170, Brazil; (A.C.d.C.C.); (N.L.A.); (A.C.P.R.)
| | - Jan Maarten van Dijl
- Department of Medical Microbiology and Infection Prevention, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713GZ Groningen, The Netherlands; (F.M.C.); (J.M.v.D.); (N.C.); (J.R.L.T.F.); (A.W.F.); (M.A.C.-F.)
| | - Natacha Couto
- Department of Medical Microbiology and Infection Prevention, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713GZ Groningen, The Netherlands; (F.M.C.); (J.M.v.D.); (N.C.); (J.R.L.T.F.); (A.W.F.); (M.A.C.-F.)
| | - Jan Zrimec
- Department of biology and Biological Engineering, Chalmers University of Technology, Chalmersplatsen 4, 412 96 Göteborg, Sweden;
| | - Jerome R. Lo Ten Foe
- Department of Medical Microbiology and Infection Prevention, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713GZ Groningen, The Netherlands; (F.M.C.); (J.M.v.D.); (N.C.); (J.R.L.T.F.); (A.W.F.); (M.A.C.-F.)
| | - Ana C. P. Rosa
- Departamento de Microbiologia, Imunologia e Parasitologia, Universidade do Estado do Rio de Janeiro, Rio de Janeiro 20550-170, Brazil; (A.C.d.C.C.); (N.L.A.); (A.C.P.R.)
| | - Paulo V. Damasco
- Departamento de Doenças Infecciosas e Parasitárias, Universidade Federal do Estado do Rio de Janeiro, Rua Voluntário da Patria, 21, Rio de Janeiro 941-901107, Brazil;
| | - Alex W. Friedrich
- Department of Medical Microbiology and Infection Prevention, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713GZ Groningen, The Netherlands; (F.M.C.); (J.M.v.D.); (N.C.); (J.R.L.T.F.); (A.W.F.); (M.A.C.-F.)
| | - Monika A. Chlebowicz-Flissikowska
- Department of Medical Microbiology and Infection Prevention, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713GZ Groningen, The Netherlands; (F.M.C.); (J.M.v.D.); (N.C.); (J.R.L.T.F.); (A.W.F.); (M.A.C.-F.)
| | - John W. A. Rossen
- Department of Medical Microbiology and Infection Prevention, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713GZ Groningen, The Netherlands; (F.M.C.); (J.M.v.D.); (N.C.); (J.R.L.T.F.); (A.W.F.); (M.A.C.-F.)
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25
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Molecular characterisation of multidrug-resistant Klebsiella pneumoniae belonging to CC258 isolated from outpatients with urinary tract infection in Brazil. J Glob Antimicrob Resist 2019; 18:74-79. [DOI: 10.1016/j.jgar.2019.01.025] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 01/13/2019] [Accepted: 01/17/2019] [Indexed: 12/17/2022] Open
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26
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Baizet C, Ouar-Epelboin S, Walter G, Mosnier E, Moreau B, Djossou F, Epelboin L. Decreased antibiotic susceptibility of Enterobacteriaceae causing community-acquired urinary tract infections in French Amazonia. Med Mal Infect 2019; 49:63-68. [DOI: 10.1016/j.medmal.2018.09.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Revised: 05/11/2018] [Accepted: 09/21/2018] [Indexed: 12/22/2022]
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27
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Cyoia PS, Koga VL, Nishio EK, Houle S, Dozois CM, de Brito KCT, de Brito BG, Nakazato G, Kobayashi RKT. Distribution of ExPEC Virulence Factors, bla CTX-M, fosA3, and mcr-1 in Escherichia coli Isolated From Commercialized Chicken Carcasses. Front Microbiol 2019; 9:3254. [PMID: 30692971 PMCID: PMC6339928 DOI: 10.3389/fmicb.2018.03254] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Accepted: 12/14/2018] [Indexed: 12/22/2022] Open
Abstract
Pathogenic Escherichia coli found in humans and poultry carcasses harbor similar virulence and resistance genes. The present study aimed to analyze the distribution of extraintestinal pathogenic E. coli (ExPEC) virulence factors (VF), blaCTX−M groups, fosA3, and mcr-1 genes in E. coli isolated from commercialized chicken carcasses in southern Brazil and to evaluate their pathogenic risk. A total of 409 E. coli strains were isolated and characterized for genes encoding virulence factors described in ExPEC. Results of antimicrobial susceptibility testing confirmed that the strains were resistant to β-lactams, fosfomycin, colistin, and others resistance groups. The highest prevalence of VFs was observed in isolates belonging to the CTX-M groups, especially the CTX-M-2 group, when compared to those in other susceptible strains or strains with different mechanisms of resistance. Furthermore, ESBL strains were found to be 1.40 times more likely to contain three to five ExPEC virulence genes than non-ESBL strains. Our findings revealed the successful conjugation between ESBL-producing E. coli isolated from chicken carcass and the E. coli recipient strain J53, which suggested that genetic determinants encoding CTX-M enzymes may have originated from animals and could be transmitted to humans via food chain. In summary, chicken meat is a potential reservoir of MDR E. coli strains harboring resistance and virulence genes that could pose serious risks to human public health.
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Affiliation(s)
- Paula Signolfi Cyoia
- Department of Microbiology, Center of Sciences Biological, Universidade Estadual de Londrina, Londrina, Brazil
| | - Vanessa Lumi Koga
- Department of Microbiology, Center of Sciences Biological, Universidade Estadual de Londrina, Londrina, Brazil
| | - Erick Kenji Nishio
- Department of Microbiology, Center of Sciences Biological, Universidade Estadual de Londrina, Londrina, Brazil
| | - Sébastien Houle
- Institut Armand-Frappier, Institut National de la Recherche Scientifique, Laval, QC, Canada
| | - Charles M Dozois
- Institut Armand-Frappier, Institut National de la Recherche Scientifique, Laval, QC, Canada
| | - Kelly Cristina Tagliari de Brito
- Avian Health Laboratory & Technical Innovation, Institute of Veterinary Research Desiderio Finamor (IPVDF), Eldorado do Sul, Rio Grande do Sul, Brazil
| | - Benito Guimarães de Brito
- Avian Health Laboratory & Technical Innovation, Institute of Veterinary Research Desiderio Finamor (IPVDF), Eldorado do Sul, Rio Grande do Sul, Brazil
| | - Gerson Nakazato
- Department of Microbiology, Center of Sciences Biological, Universidade Estadual de Londrina, Londrina, Brazil
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28
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Lee DS, Lee SJ, Choe HS. Community-Acquired Urinary Tract Infection by Escherichia coli in the Era of Antibiotic Resistance. BIOMED RESEARCH INTERNATIONAL 2018; 2018:7656752. [PMID: 30356438 PMCID: PMC6178185 DOI: 10.1155/2018/7656752] [Citation(s) in RCA: 88] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 08/19/2018] [Accepted: 09/09/2018] [Indexed: 01/27/2023]
Abstract
Urinary tract infections (UTIs) caused by Escherichia coli (E. coli) are the most common types of infections in women. The antibiotic resistance of E. coli is increasing rapidly, causing physicians to hesitate when selecting oral antibiotics. In this review, our objective is to ensure that clinicians understand the current seriousness of antibiotic-resistant E. coli, the mechanisms by which resistance is selected for, and methods that can be used to prevent antibiotic resistance.
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Affiliation(s)
- Dong Sup Lee
- Department of Urology, St. Vincent's Hospital, The Catholic University of Korea, College of Medicine, Republic of Korea
| | - Seung-Ju Lee
- Department of Urology, St. Vincent's Hospital, The Catholic University of Korea, College of Medicine, Republic of Korea
| | - Hyun-Sop Choe
- Department of Urology, St. Vincent's Hospital, The Catholic University of Korea, College of Medicine, Republic of Korea
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29
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Fernandes MR, Sellera FP, Moura Q, Gaspar VC, Cerdeira L, Lincopan N. International high-risk clonal lineages of CTX-M-producing Escherichia coli F-ST648 in free-roaming cats, South America. INFECTION GENETICS AND EVOLUTION 2018; 66:48-51. [PMID: 30227226 DOI: 10.1016/j.meegid.2018.09.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 09/11/2018] [Accepted: 09/13/2018] [Indexed: 12/15/2022]
Abstract
The dissemination of extended-spectrum β-lactamase (ESBL)-producing Escherichia coli belonging to high-virulent pandemic lineages has become a global problem with serious consequences for public health worldwide. In this regard, E. coli lineages belonging to the sequence type ST648, which are mostly associated with human infections, have begun to be reported in animals. In this study, we report the identification and genomic characterization of international CTX-M-producing E. coli ST648/F lineages in free-roaming cats from an urban slum, in Brazil. Moreover, we have performed a comparative genomic analysis of worldwide reported E. coli ST648 strains, highlighting an epidemiologic linkage between human and companion animals.
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Affiliation(s)
- Miriam R Fernandes
- Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | - Fábio P Sellera
- Department of Internal Medicine, School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, Brazil
| | - Quézia Moura
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Vitor C Gaspar
- Department of Internal Medicine, School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, Brazil
| | - Louise Cerdeira
- Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | - Nilton Lincopan
- Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil; Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil.
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30
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Pereira JL, Volcão LM, Klafke GB, Vieira RS, Gonçalves CV, Ramis IB, da Silva PEA, von Groll A. Antimicrobial Resistance and Molecular Characterization of Extended-Spectrum β-Lactamases of Escherichia coli and Klebsiella spp. Isolates from Urinary Tract Infections in Southern Brazil. Microb Drug Resist 2018; 25:173-181. [PMID: 30133334 DOI: 10.1089/mdr.2018.0046] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The objective of this study was to evaluate the frequency of different extended-spectrum β-lactamases (ESBL) as well as to associate these ESBL with antimicrobial (ATM) resistance in Escherichia coli and Klebsiella spp. isolates from outpatients and inpatients with urinary tract infections. The study included 435 consecutive nonduplicate clinical isolates, including 362 E. coli isolates, 62 Klebsiella pneumoniae isolates, and 11 K. oxytoca isolates. Isolates were obtained from patients who were treated in a University Hospital between August 2012 and July 2013. Three multiplex PCR were performed to identify the ESBL groups. A total of 48 (11%) ESBL-producing isolates were found. The risk for the ESBL presence was significantly higher in males (26.4%) than females (8%), from hospital-acquired infections (29.1%) than community-acquired infections (7.0%) and in Klebsiella spp. (27.4%) than in E. coli (7.7%). ESBL-producing isolates presented a significantly higher percentage of resistance in 21 of the 23 ATMs analyzed. The CTX-M-1 group was the most predominant ESBL identified. The blaCTX-M-1-group gene was found in 56% of the total ESBL producers from community and in 42.4% from hospital origins; it was followed in frequency by the blaCTX-M-8/25-group, also found in both environments. Klebsiella spp. presented the largest variety of β-lactamase enzyme combinations and a higher level of resistance to cefotaxime. These findings contribute to better knowledge of the epidemiology of ESBL enzymes and are alarming for the reduced therapeutic options available for the risk groups identified in the studied populations.
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Affiliation(s)
- Juliano Lacava Pereira
- 1 Faculdade de Medicina, Medical Microbiology Research Center (NUPEMM), Universidade Federal do Rio Grande-FURG , Rio Grande, Brazil
| | - Lisiane Martins Volcão
- 1 Faculdade de Medicina, Medical Microbiology Research Center (NUPEMM), Universidade Federal do Rio Grande-FURG , Rio Grande, Brazil
| | - Gabriel Baracy Klafke
- 2 Faculdade de Medicina, Universidade Federal do Rio Grande-FURG , Rio Grande, Brazil
| | - Roseli Stone Vieira
- 3 Hospital Universitário Dr. Miguel Riet Correa , Universidade Federal do Rio Grande-FURG, Rio Grande, Brazil
| | | | - Ivy Bastos Ramis
- 1 Faculdade de Medicina, Medical Microbiology Research Center (NUPEMM), Universidade Federal do Rio Grande-FURG , Rio Grande, Brazil
| | - Pedro Eduardo Almeida da Silva
- 1 Faculdade de Medicina, Medical Microbiology Research Center (NUPEMM), Universidade Federal do Rio Grande-FURG , Rio Grande, Brazil
| | - Andrea von Groll
- 1 Faculdade de Medicina, Medical Microbiology Research Center (NUPEMM), Universidade Federal do Rio Grande-FURG , Rio Grande, Brazil
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31
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Baziboroun M, Bayani M, Poormontaseri Z, Shokri M, Biazar T. Prevalence and Antibiotic Susceptibility Pattern of Extended Spectrum Beta Lactamases Producing Escherichia Coli Isolated from Outpatients with Urinary Tract Infections in Babol, Northern of Iran. CURRENT ISSUES IN PHARMACY AND MEDICAL SCIENCES 2018. [DOI: 10.1515/cipms-2018-0013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AbstractReceived 08 November 2017 Accepted 15 February 2018 The incidence of community-acquired UTIs due to extended-spectrum beta-lactamase (ESBL) producing E. coli isolates, has increased worldwide and is considered a great problem in the treatment of infections. The aim of this study was to determine the prevalence of ESBL producing E. coli isolates in urine samples of outpatients in Babol, North of Iran. A total of 3 699 urine samples from outpatients referred to Yahyanejad Hospital, Babol, Iran, were collected during 15 months, from March 2016 to June 2017. The samples were processed for bacterial culture using conventional methods, while antimicrobial susceptibility testing for E. coli isolates was performed by the disc diffusion method. The prevalence of ESBL producing E. coli isolates were assessed by Double-Disc tests. Of 3699 tested sample, 201 samples showed the growth of pathogens and among them, 106 isolates (52/7%) were E. coli. The rate of ESBL producing E. coli isolates was 25/4%.The majority (81/5%) of the isolates were from females. High percent resistance was found against ceftazidime, cefotaxime, ceftriaxone, cefixime and ciprofloxacin, ranging from 61-100%, while the highest percent susceptibility was seen to meropenem, piperacillin- tazobactam (100%), followed by nitrofurantoin and amikacin (91%). The high prevalence of ESBL producing E. coli isolates from outpatients calls for the need to aware of this increasing resistance between uropathogens and update bacterial susceptibility data and to set up our empirical therapy accordingly.
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Affiliation(s)
- Mana Baziboroun
- Infectious Diseases and Tropical Medicine Research Center, Health Research Institute, Babol University of Medical Sciences, Babol , I.R. Iran
| | - Masomeh Bayani
- Infectious Diseases and Tropical Medicine Research Center, Health Research Institute, Babol University of Medical Sciences, Babol , I.R. Iran
| | - Zahra Poormontaseri
- Department of infectious disease, Fasa University of Medical Science, Fars , Iran
| | - Mehran Shokri
- Infectious Diseases and Tropical Medicine Research Center, Health Research Institute, Babol University of Medical Sciences, Babol , I.R. Iran
| | - Tahmineh Biazar
- Infectious Diseases and Tropical Medicine Research Center, Health Research Institute, Babol University of Medical Sciences, Babol , I.R. Iran
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Campos ACC, Andrade NL, Ferdous M, Chlebowicz MA, Santos CC, Correal JCD, Lo Ten Foe JR, Rosa ACP, Damasco PV, Friedrich AW, Rossen JWA. Comprehensive Molecular Characterization of Escherichia coli Isolates from Urine Samples of Hospitalized Patients in Rio de Janeiro, Brazil. Front Microbiol 2018; 9:243. [PMID: 29503639 PMCID: PMC5821075 DOI: 10.3389/fmicb.2018.00243] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Accepted: 01/31/2018] [Indexed: 01/09/2023] Open
Abstract
Urinary tract infections (UTIs) are often caused by Escherichia coli. Their increasing resistance to broad-spectrum antibiotics challenges the treatment of UTIs. Whereas, E. coli ST131 is often multidrug resistant (MDR), ST69 remains susceptible to antibiotics such as cephalosporins. Both STs are commonly linked to community and nosocomial infections. E. coli phylogenetic groups B2 and D are associated with virulence and resistance profiles making them more pathogenic. Little is known about the population structure of E. coli isolates obtained from urine samples of hospitalized patients in Brazil. Therefore, we characterized E. coli isolated from urine samples of patients hospitalized at the university and three private hospitals in Rio de Janeiro, using whole genome sequencing. A high prevalence of E. coli ST131 and ST69 was found, but other lineages, namely ST73, ST648, ST405, and ST10 were also detected. Interestingly, isolates could be divided into two groups based on their antibiotic susceptibility. Isolates belonging to ST131, ST648, and ST405 showed a high resistance rate to all antibiotic classes tested, whereas isolates belonging to ST10, ST73, ST69 were in general susceptible to the antibiotics tested. Additionally, most ST69 isolates, normally resistant to aminoglycosides, were susceptible to this antibiotic in our population. The majority of ST131 isolates were ESBL-producing and belonged to serotype O25:H4 and the H30-R subclone. Previous studies showed that this subclone is often associated with more complicated UTIs, most likely due to their high resistance rate to different antibiotic classes. Sequenced isolates could be classified into five phylogenetic groups of which B2, D, and F showed higher resistance rates than groups A and B1. No significant difference for the predicted virulence genes scores was found for isolates belonging to ST131, ST648, ST405, and ST69. In contrast, the phylogenetic groups B2, D and F showed a higher predictive virulence score compared to phylogenetic groups A and B1. In conclusion, despite the diversity of E. coli isolates causing UTIs, clonal groups O25:H4-B2-ST131 H30-R, O1:H6-B2-ST648, and O102:H6-D-ST405 were the most prevalent. The emergence of highly virulent and MDR E. coli in Brazil is of high concern and requires more attention from the health authorities.
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Affiliation(s)
- Ana Carolina C Campos
- Departamento de Microbiologia, Imunologia e Parasitologia, Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil.,Department of Medical Microbiology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Nathália L Andrade
- Departamento de Microbiologia, Imunologia e Parasitologia, Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Mithila Ferdous
- Department of Medical Microbiology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Monika A Chlebowicz
- Department of Medical Microbiology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Carla C Santos
- Departamento de Controle de Infecções, Hospital Rio Laranjeiras, Rio de Janeiro, Brazil
| | - Julio C D Correal
- Departamento de Microbiologia, Imunologia e Parasitologia, Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil.,Departamento de Controle de Infecções, Hospital Rio Laranjeiras, Rio de Janeiro, Brazil
| | - Jerome R Lo Ten Foe
- Department of Medical Microbiology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Ana Cláudia P Rosa
- Departamento de Microbiologia, Imunologia e Parasitologia, Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Paulo V Damasco
- Departamento de Doenças Infecciosas e Parasitárias, Universidade Federal do Estado do Rio de Janeiro, Rio de Janeiro, Brazil.,Departamento de Doenças Infecciosas e Parasitárias, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Alex W Friedrich
- Department of Medical Microbiology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - John W A Rossen
- Department of Medical Microbiology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
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Soria Segarra C, Soria Baquero E, Cartelle Gestal M. High Prevalence of CTX-M-1-Like Enzymes in Urinary Isolates of Escherichia coli in Guayaquil, Ecuador. Microb Drug Resist 2018; 24:393-402. [PMID: 29298110 DOI: 10.1089/mdr.2017.0325] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Abstract
Escherichia coli is one of the major causes of urinary tract infections in primary healthcare, and treatment is more complicated due to the increase in antibiotic resistance. Extended-spectrum β-lactamases are the most common mechanism of resistance against third-generation cephalosporin, and CTX-M-like are among the most prevalent. The aim of our work is to investigate the prevalence of blaCTX-M in isolates of E. coli obtained from samples of patients without previous known contact with the hospital. Ninety-four E. coli isolates with resistance to third-generation cephalosporin were collected between 2008 and 2013 in Guayaquil, Ecuador. Polymerase chain reaction, followed by sequencing, was performed to identify the type of blaCTX-M-Like. Enterobacterial repetitive intergenic consensus (ERIC)-PCR was carried out to determine the clonal relationship between isolates. These results show an increase in resistance to third-generation cephalosporin from 10.58% to 23.96%. CTX-M-15 was the most prevalent mechanism of resistance being that the isolates were not clonal. Overall, these results show an increase in antibiotic resistance in the community over time, suggesting that more precise antibiotic stewardship needs to be implemented to control the dissemination of antibiotic-resistant bacteria in this region.
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Affiliation(s)
- Claudia Soria Segarra
- 1 Section of Bacteriology, Sosegar Clinical Laboratory , Guayaquil, Ecuador .,2 Faculty of Medical Sciences, University of Guayaquil , Guayaquil, Ecuador
| | | | - Monica Cartelle Gestal
- 3 Department of Infectious Diseases, Center for Vaccine and Immunology, University of Georgia , Athens, Georgia
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Genetic Determinants of Antibiotic Resistance in Hospital and Community Isolates of Klebsiella pneumoniae and Escherichia coli. Jundishapur J Microbiol 2017. [DOI: 10.5812/jjm.45678] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Moreira da Silva RCR, de Oliveira Martins Júnior P, Gonçalves LF, de Paulo Martins V, de Melo ABF, Pitondo-Silva A, de Campos TA. Ciprofloxacin resistance in uropathogenic Escherichia coli isolates causing community-acquired urinary infections in Brasília, Brazil. J Glob Antimicrob Resist 2017; 9:61-67. [PMID: 28419868 DOI: 10.1016/j.jgar.2017.01.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Revised: 01/24/2017] [Accepted: 01/25/2017] [Indexed: 01/25/2023] Open
Abstract
OBJECTIVES Considering the global concern of ciprofloxacin resistance, the aim of this study was to evaluate the characteristics of ciprofloxacin-resistant (CIP-R) Escherichia coli isolated from patients with community-acquired urinary tract infections (UTIs) in Brasília, Brazil. METHODS CIP-R E. coli isolated from different outpatients between July 2013 and April 2014 in a tertiary hospital were analysed for antibiotic resistance profile, phylotype, uropathogenic E. coli (UPEC) virulence genes, clonal relationship by enterobacterial repetitive intergenic consensus PCR (ERIC-PCR), and multilocus sequence typing (MLST). RESULTS Among the 324 UPEC analysed, 263 (81.2%) were ciprofloxacin-sensitive and 61 (18.8%) were CIP-R. Antibiogram analysis of the 61 CIP-R strains showed that 45 (73.8%) were also multidrug-resistant. The most prevalent phylogroups were A and B2 (26/61 and 18/61, respectively). traT (53/61) and aer-traT (24/61) were the most common gene and genotype observed. Dendrogram analysis found that multidrug resistance and virulence genes were distributed among CIP-R strains independently of clonality and phylogroup. Six ERIC clusters (strains sharing ≥85% genetic similarity) were observed. MLST analysis of all strains of each cluster identified sequence types (STs) associated with worldwide antimicrobial resistance dissemination, including B2-ST131 and ST410, as well as STs not yet associated with antimicrobial resistance propagation, such as ST1725 and ST179. CONCLUSIONS These results demonstrate that ciprofloxacin resistance dissemination by UPEC causing community-acquired UTIs was associated with multidrug resistance and was promoted by pandemic and non-pandemic STs, a concerning scenario for the local population.
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Affiliation(s)
- Rafaella Christina Rocha Moreira da Silva
- Departamento de Biologia Celular, Instituto de Ciências Biológicas, Universidade de Brasília, Campus Universitário 'Darcy Ribeiro', Asa Norte, CEP 70910-900, Brasília, DF, Brazil
| | | | - Laura Fernandes Gonçalves
- Departamento de Biologia Celular, Instituto de Ciências Biológicas, Universidade de Brasília, Campus Universitário 'Darcy Ribeiro', Asa Norte, CEP 70910-900, Brasília, DF, Brazil
| | - Vicente de Paulo Martins
- Departamento de Biologia Celular, Instituto de Ciências Biológicas, Universidade de Brasília, Campus Universitário 'Darcy Ribeiro', Asa Norte, CEP 70910-900, Brasília, DF, Brazil
| | | | - André Pitondo-Silva
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Tatiana Amabile de Campos
- Departamento de Biologia Celular, Instituto de Ciências Biológicas, Universidade de Brasília, Campus Universitário 'Darcy Ribeiro', Asa Norte, CEP 70910-900, Brasília, DF, Brazil.
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Rapid and Specific Detection of the Escherichia coli Sequence Type 648 Complex within Phylogroup F. J Clin Microbiol 2017; 55:1116-1121. [PMID: 28100599 DOI: 10.1128/jcm.01949-16] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Accepted: 01/13/2017] [Indexed: 12/11/2022] Open
Abstract
The Escherichia coli sequence type 648 complex (STc648) is an emerging lineage within phylogroup F-formerly included within phylogroup D-that is associated with multidrug resistance. Here, we designed and validated a novel multiplex PCR-based assay for STc648 that took advantage of (i) four distinctive single-nucleotide polymorphisms in icd allele 96 and gyrB allele 87, two of the multilocus sequence typing alleles that define ST648; and (ii) the typical absence within STc648 of uidA, an E. coli-specific gene encoding β-glucuronidase. Within a diverse 212-strain validation set that included 109 STs other than STc648, from phylogroups A, B1, B2, C, D, E, and F, the assay exhibited 100% sensitivity (95% confidence interval [CI], 82% to 100%) and specificity (95% CI, 98% to 100%). It functioned similarly well in two distant laboratories that used boiled lysates or DNAzol-purified DNA as the template DNA. Thus, this novel multiplex PCR-based assay should enable any laboratory equipped for diagnostic PCR to rapidly, accurately, and economically screen E. coli isolates for membership in STc648.
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Sampaio JLM, Gales AC. Antimicrobial resistance in Enterobacteriaceae in Brazil: focus on β-lactams and polymyxins. Braz J Microbiol 2016; 47 Suppl 1:31-37. [PMID: 27825605 PMCID: PMC5156504 DOI: 10.1016/j.bjm.2016.10.002] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Revised: 10/07/2016] [Accepted: 10/07/2016] [Indexed: 12/22/2022] Open
Abstract
During the last 30 years there has been a dissemination of plasmid-mediated β-lactamases in Enterobacteriaceae in Brazil. Extended spectrum β-lactamases (ESBL) are widely disseminated in the hospital setting and are detected in a lower frequency in the community setting. Cefotaximases are the most frequently detected ESBL type and Klebsiella pneumoniae is the predominant species among ESBL producers. Klebsiella pneumoniae carbapenemase-producing Enterobacteriaceae became widely disseminated in Brazil during the last decade and KPC production is currently the most frequent resistance mechanism (96.2%) in carbapenem resistant K. pneumoniae. To date KPC-2 is the only variant reported in Brazil. Polymyxin B resistance in KPC-2-producing K. pneumoniae has come to an alarming rate of 27.1% in 2015 in São Paulo, the largest city in Brazil. New Delhi metallo-β-lactamase was detected in Brazil in 2013, has been reported in different Brazilian states but are not widely disseminated. Antimicrobial resistance in Enterobacteriaceae in Brazil is a very serious problem that needs urgent actions which includes both more strict adherence to infection control measures and more judicious use of antimicrobials.
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Affiliation(s)
- Jorge Luiz Mello Sampaio
- Universidade de São Paulo, Faculdade de Ciências Farmacêuticas, Departamento de Análises Clínicas e Toxicológicas, São Paulo, SP, Brazil; Fleury Medicina e Saúde, Seção de Microbiologia, São Paulo, SP, Brazil.
| | - Ana Cristina Gales
- Universidade Federal de São Paulo, Escola Paulista de Medicina, Departamento de Medicina Interna, São Paulo, Brazil.
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