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Carlsen L, Grottker M, Heim M, Knobling B, Schlauß S, Wellbrock K, Knobloch JK. High Genetic Diversity in Third-Generation Cephalosporin-Resistant Escherichia coli in Wastewater Systems of Schleswig-Holstein. Pathogens 2024; 13:90. [PMID: 38276163 PMCID: PMC10820474 DOI: 10.3390/pathogens13010090] [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: 12/15/2023] [Revised: 01/12/2024] [Accepted: 01/18/2024] [Indexed: 01/27/2024] Open
Abstract
The spread of multidrug-resistant bacteria from humans or livestock is a critical issue. However, the epidemiology of resistant pathogens across wastewater pathways is poorly understood. Therefore, we performed a detailed comparison of third-generation cephalosporin-resistant Escherichia coli (3GCREC) from wastewater treatment plants (WWTPs) to analyze dissemination pathways. A total of 172 3GCREC isolated from four WWTPs were characterized via whole genome sequencing. Clonal relatedness was determined using multi-locus sequence typing (MLST) and core genome MLST. Resistance genotypes and plasmid replicons were determined. A total of 68 MLST sequence types were observed with 28 closely related clusters. Resistance genes to eight antibiotic classes were detected. In fluoroquinolone-resistant isolates, resistance was associated with three-or-more point mutations in target genes. Typing revealed high genetic diversity with only a few clonal lineages present in all WWTPs. The distribution paths of individual lines could only be traced in exceptional cases with a lack of enrichment of certain lineages. Varying resistance genes and plasmids, as well as fluoroquinolone resistance-associated point mutations in individual isolates, further corroborated the high diversity of 3GCREC in WWTPs. In total, we observed high diversity of 3GCREC inside the tested WWTPs with proof of resistant strains being released into the environment even after treatment processes.
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Affiliation(s)
- Laura Carlsen
- Institute of Medical Microbiology, Virology, and Hygiene, Department for Infection Prevention and Control, University Medical Center Hamburg–Eppendorf, Martinistraße 52, 20246 Hamburg, Germany; (L.C.); (B.K.)
| | - Matthias Grottker
- Laboratory for Urban Water and Waste Management, Technische Hochschule Lübeck, University of Applied Sciences, Mönkhofer Weg 239, 23562 Lübeck, Germany; (M.G.); (S.S.); (K.W.)
| | - Malika Heim
- Laboratory for Urban Water and Waste Management, Technische Hochschule Lübeck, University of Applied Sciences, Mönkhofer Weg 239, 23562 Lübeck, Germany; (M.G.); (S.S.); (K.W.)
| | - Birte Knobling
- Institute of Medical Microbiology, Virology, and Hygiene, Department for Infection Prevention and Control, University Medical Center Hamburg–Eppendorf, Martinistraße 52, 20246 Hamburg, Germany; (L.C.); (B.K.)
| | - Sebastian Schlauß
- Laboratory for Urban Water and Waste Management, Technische Hochschule Lübeck, University of Applied Sciences, Mönkhofer Weg 239, 23562 Lübeck, Germany; (M.G.); (S.S.); (K.W.)
| | - Kai Wellbrock
- Laboratory for Urban Water and Waste Management, Technische Hochschule Lübeck, University of Applied Sciences, Mönkhofer Weg 239, 23562 Lübeck, Germany; (M.G.); (S.S.); (K.W.)
| | - Johannes K. Knobloch
- Institute of Medical Microbiology, Virology, and Hygiene, Department for Infection Prevention and Control, University Medical Center Hamburg–Eppendorf, Martinistraße 52, 20246 Hamburg, Germany; (L.C.); (B.K.)
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Aworh MK, Kwaga JKP, Hendriksen RS, Okolocha EC, Harrell E, Thakur S. Quinolone-resistant Escherichia coli at the interface between humans, poultry and their shared environment- a potential public health risk. ONE HEALTH OUTLOOK 2023; 5:2. [PMID: 36855171 PMCID: PMC9976508 DOI: 10.1186/s42522-023-00079-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 02/12/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND Commensal Escherichia coli residing in the guts of humans and animals are reservoirs of multidrug resistance (MDR) genes, including quinolone resistance genes, in humans and poultry. This study aimed to characterize quinolones resistance in E. coli recovered from poultry workers, chickens, and poultry farm/market environments in Abuja, Nigeria. METHODS This was a cross-sectional study conducted between December 2018 and April 2019 comprising poultry workers, chickens and their poultry farm/market environments. This study characterized E. coli isolates from stool, faecal and environmental samples using antimicrobial susceptibility testing and whole-genome sequencing methods. Core-genome multilocus sequences-based phylogeny was used to determine the relatedness between quinolone-resistant E. coli isolates. Data were analyzed using descriptive statistics. RESULTS Of 110 E. coli isolates, quinolone-resistant phenotypes were observed in 68.2% (n = 75) isolates. Whole-genome sequencing detected plasmid-mediated quinolone resistance (PMQR) genes in 63.6% (n = 70) isolates. The most prevalent PMQR gene detected in 56 of these 70 E. coli isolates was qnrS1, followed by qnrB19 in 14 isolates and aac(6')-lb-cr in two isolates. Fifteen ciprofloxacin and 19 nalidixic acid-resistant isolates respectively showed double mutations in the quinolone-resistance determining regions (QRDRs) of gyrA, with single or double mutations in parC, and a single mutation in parE. The most prevalent amino-acid substitutions observed were S83L + D87N in gyrA (46.5%, n = 20), S80I in parC (51.2%, n = 22) and S458A in parE (14%, n = 6). About 2.9% (2/70) of PMQR isolates were extended-spectrum beta-lactamase (ESBL) producers while 2.9% (2/70) had plasmid-mediated colistin resistance (PMCR) genes. CONCLUSIONS PMQR genes were prevalent in E. coli isolates recovered from healthy humans, chickens and poultry farm/market environments. PMCR genes (mcr-1.1) occurred in PMQR-positive isolates recovered from manure and drinking water originating from poultry farm/market environments. It was found that the gene encoding ESBL coexisted with qnrS-positive isolates of human and avian origin. Horizontal transfer of PMQR genes among E. coli isolates in the human-poultry-environment interface has public health implications for the spread of antimicrobial resistance. Relevant government agencies should enforce regulations to restrict the use of critically important antimicrobials in poultry production.
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Affiliation(s)
- Mabel Kamweli Aworh
- Department of Veterinary and Pest Control Services, Federal Ministry of Agriculture and Rural Development, Abuja, Nigeria.
- Nigeria Field Epidemiology and Laboratory Training Programme, Abuja, Nigeria.
- Department of Veterinary Public Health and Preventive Medicine, Ahmadu Bello University, Zaria, Nigeria.
- Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, USA.
| | - Jacob K P Kwaga
- Department of Veterinary Public Health and Preventive Medicine, Ahmadu Bello University, Zaria, Nigeria
| | - Rene S Hendriksen
- Reference Laboratory for Antimicrobial Resistance, WHO, FAO, National Food Institute, Technical University of Denmark, Kgs. Lyngby, EU, Denmark
| | - Emmanuel C Okolocha
- Department of Veterinary Public Health and Preventive Medicine, Ahmadu Bello University, Zaria, Nigeria
| | - Erin Harrell
- Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, USA
| | - Siddhartha Thakur
- Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, USA
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Millanao AR, Mora AY, Villagra NA, Bucarey SA, Hidalgo AA. Biological Effects of Quinolones: A Family of Broad-Spectrum Antimicrobial Agents. Molecules 2021; 26:7153. [PMID: 34885734 PMCID: PMC8658791 DOI: 10.3390/molecules26237153] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 10/28/2021] [Accepted: 11/05/2021] [Indexed: 11/28/2022] Open
Abstract
Broad antibacterial spectrum, high oral bioavailability and excellent tissue penetration combined with safety and few, yet rare, unwanted effects, have made the quinolones class of antimicrobials one of the most used in inpatients and outpatients. Initially discovered during the search for improved chloroquine-derivative molecules with increased anti-malarial activity, today the quinolones, intended as antimicrobials, comprehend four generations that progressively have been extending antimicrobial spectrum and clinical use. The quinolone class of antimicrobials exerts its antimicrobial actions through inhibiting DNA gyrase and Topoisomerase IV that in turn inhibits synthesis of DNA and RNA. Good distribution through different tissues and organs to treat Gram-positive and Gram-negative bacteria have made quinolones a good choice to treat disease in both humans and animals. The extensive use of quinolones, in both human health and in the veterinary field, has induced a rise of resistance and menace with leaving the quinolones family ineffective to treat infections. This review revises the evolution of quinolones structures, biological activity, and the clinical importance of this evolving family. Next, updated information regarding the mechanism of antimicrobial activity is revised. The veterinary use of quinolones in animal productions is also considered for its environmental role in spreading resistance. Finally, considerations for the use of quinolones in human and veterinary medicine are discussed.
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Affiliation(s)
- Ana R. Millanao
- Facultad de Ciencias, Instituto de Farmacia, Universidad Austral de Chile, Valdivia 5090000, Chile;
| | - Aracely Y. Mora
- Programa de Doctorado en Bioquímica, Universidad de Chile, Santiago 8380544, Chile;
| | - Nicolás A. Villagra
- Escuela de Tecnología Médica, Universidad Andres Bello, Santiago 8370071, Chile;
| | - Sergio A. Bucarey
- Facultad de Ciencias Veterinarias y Pecuarias, Universidad de Chile, Santiago 8820808, Chile;
| | - Alejandro A. Hidalgo
- Escuela de Química y Farmacia, Universidad Andres Bello, Santiago 8370071, Chile
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Waxman S, de Lucas JJ, Wiemeyer G, Torres Bianchini L, San Andrés MI, Rodríguez C. Pharmacokinetic Behaviour of Enrofloxacin after Single Intramuscular Dosage in American Black Vultures ( Coragyps atratus). Antibiotics (Basel) 2021; 10:antibiotics10080957. [PMID: 34439007 PMCID: PMC8389010 DOI: 10.3390/antibiotics10080957] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 08/02/2021] [Accepted: 08/06/2021] [Indexed: 11/17/2022] Open
Abstract
The aim of the study was to investigate the intramuscular pharmacokinetics of enrofloxacin in black vultures (Coragyps atratus). The pharmacokinetics of a single intramuscular dose (10 mg/kg) of enrofloxacin was studied in six vultures. Plasma concentrations of enrofloxacin and its active metabolite, ciprofloxacin, were determined by high-performance liquid chromatography (HPLCuv). Pharmacokinetic parameters were estimated using non-compartmental and compartmental analysis. After intramuscular administration, enrofloxacin showed a rapid and complete absorption, reaching a Cmax value of 3.26 ± 0.23 μg/mL at 1.75 ± 0.53 h. A long terminal half-life of 19.58 h has been observed. Using previously published MIC values to perform a PK/PD analysis, cumulative fraction responses obtained after Monte Carlo simulation for AUC/MIC > 30, 50 and 125 were 72.93%, 72.34% and 30.86% for E. coli and 89.29%, 88.89% and 58.57% for Mycoplasma synoviae, respectively. Cumulative fraction responses obtained for Cmax/MIC index were 33.93% and 40.18% for E. coli and M. synoviae, respectively. The intramuscular administration of 10 mg/kg could be appropriate to treat infectious diseases caused by gram-positive bacteria with MIC value lower than 1 µg/mL; however, although enrofloxacin showed a slow elimination in black vultures, plasma concentrations were insufficient to reach the gram-negative stablished breakpoints.
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Affiliation(s)
- Samanta Waxman
- Facultad de Ciencias Veterinarias, Universidad de Buenos Aires, Chorroarin 280, Buenos Aires 1427, Argentina; (G.W.); (L.T.B.)
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires 1425, Argentina
- Correspondence: ; Tel.: +54-11-52872109
| | - José Julio de Lucas
- Department of Pharmacology and Toxicology, Veterinary Faculty, Universidad Complutense de Madrid, Av. Puerta de Hierro s/n, 28040 Madrid, Spain; (J.J.d.L.); (M.I.S.A.); (C.R.)
| | - Guillermo Wiemeyer
- Facultad de Ciencias Veterinarias, Universidad de Buenos Aires, Chorroarin 280, Buenos Aires 1427, Argentina; (G.W.); (L.T.B.)
- Jardín Zoológico de la Ciudad de Buenos Aires, R. de la India 3000, Buenos Aires 1425, Argentina
- Fundación Caburé-í, Sucre 2842, Buenos Aires 1428, Argentina
| | - Laura Torres Bianchini
- Facultad de Ciencias Veterinarias, Universidad de Buenos Aires, Chorroarin 280, Buenos Aires 1427, Argentina; (G.W.); (L.T.B.)
- Jardín Zoológico de la Ciudad de Buenos Aires, R. de la India 3000, Buenos Aires 1425, Argentina
| | - Manuel Ignacio San Andrés
- Department of Pharmacology and Toxicology, Veterinary Faculty, Universidad Complutense de Madrid, Av. Puerta de Hierro s/n, 28040 Madrid, Spain; (J.J.d.L.); (M.I.S.A.); (C.R.)
| | - Casilda Rodríguez
- Department of Pharmacology and Toxicology, Veterinary Faculty, Universidad Complutense de Madrid, Av. Puerta de Hierro s/n, 28040 Madrid, Spain; (J.J.d.L.); (M.I.S.A.); (C.R.)
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Poźniak B, Tikhomirov M, Motykiewicz-Pers K, Bobrek K, Świtała M. Allometric Optimization of Enrofloxacin Dosage in Growing Male Turkeys: Empirical Evidence for Improved Internal Exposure. Antibiotics (Basel) 2020; 9:antibiotics9120925. [PMID: 33353249 PMCID: PMC7766516 DOI: 10.3390/antibiotics9120925] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 12/17/2020] [Accepted: 12/18/2020] [Indexed: 11/16/2022] Open
Abstract
Rapid weight gain in turkeys causes a major change in the pharmacokinetics of drugs, leading to age-dependent variability in the internal exposure and, possibly, treatment failure and/or selection for antimicrobial resistance in young individuals. The aim of the study was to investigate whether a non-linear dosing protocol that accounts for the previously established allometric relation between enrofloxacin clearance and body weight (BW) may optimize the internal exposure to enrofloxacin in growing male turkeys. Enrofloxacin was administered four times, between the age of 5 and 16.5 weeks, when the turkeys’ BW increased from 1.47 to 14.92 kg. Enrofloxacin was given intravenously (i.v.) or orally at the dose calculated as follows: Dose = 30 × BW0.59. After i.v. administration, the internal exposure to the drug—quantified as the area under the concentration–time curve (AUC)—was showing little age-related variation. The coefficient of variation (CV) for AUC in all individuals (15.7%) was only slightly higher than within the age groups (5.4–13.7%). After oral drug administration, CV for AUC in all individuals (22.1%) was similar as within the age groups (8.7–32.2%). These results show that intra-species allometric scaling may be efficiently implemented in the non-linear approach to enrofloxacin dosage in turkeys in order to obtain a precise internal exposure for the optimal antimicrobial effect.
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Affiliation(s)
- Błażej Poźniak
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, ul. Norwida 31, 50-375 Wrocław, Poland; (M.T.); (K.M.-P.); (M.Ś.)
- Correspondence: ; Tel.: +48-71-320-5403
| | - Marta Tikhomirov
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, ul. Norwida 31, 50-375 Wrocław, Poland; (M.T.); (K.M.-P.); (M.Ś.)
| | - Karolina Motykiewicz-Pers
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, ul. Norwida 31, 50-375 Wrocław, Poland; (M.T.); (K.M.-P.); (M.Ś.)
| | - Kamila Bobrek
- Department of Epizootiology and Clinic of Birds and Exotic Animals, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, pl. Grunwaldzki 45, 50-366 Wrocław, Poland;
| | - Marcin Świtała
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, ul. Norwida 31, 50-375 Wrocław, Poland; (M.T.); (K.M.-P.); (M.Ś.)
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Zhang HL, Wu SL, Fu JL, Jiang HX, Ding HZ. Research Note: Epidemiological cutoff values and acquired resistance mechanisms of three veterinary antibiotics against Escherichia coli from chicken respiratory tract infections. Poult Sci 2020; 100:1093-1097. [PMID: 33518068 PMCID: PMC7858166 DOI: 10.1016/j.psj.2020.11.049] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 11/14/2020] [Accepted: 11/23/2020] [Indexed: 11/16/2022] Open
Abstract
Florfenicol, apramycin, and danofloxacin are antibiotics approved only for veterinary use and that have good therapeutic effects on chicken respiratory infections caused by Escherichia coli. We established epidemiological cutoff values (ECV) for these antibiotics using 363 E. coli isolates from tracheal samples of chickens in 5 veterinary clinics in Guangdong Province, China. The minimum inhibitory concentrations (MIC) were determined using the agar dilution method as per Clinical and Laboratory Standards Institution guidelines. The ECV were then calculated using the statistical method and verified by normalized resistance interpretation and ECOFFinder software programs. The ECV of florfenicol, apramycin, and danofloxacin against E. coli were 16, 16, and 0.125 μg/mL, respectively. Susceptibility tests indicated that these isolates were resistant to florfenicol (66.7%), apramycin (22.3%), and danofloxacin (92.3%). Strains carrying floR were distributed in the range of MIC ≥32 μg/mL for florfenicol. Apramycin resistance was found in 77 strains (77/363, 21.1%), and isolates that carried aac(3)-IV were all in the range of MIC ≥512 μg/mL. Danofloxacin resistance was found in the range of MIC ≤0.125 μg/mL, but there were no mutations in the quinolone resistance–determining regions and plasmid-mediated quinolone resistance genes qnrA, qnrB, qnrC, qnrD, aac-(6′)-Ib-cr, qep, and oqxB. The presence of the qnrS gene was verified in a few of the strains with an MIC of 0.06 μg/mL. The establishment of ECV was significant for monitoring of resistance development and therapy guidance.
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Affiliation(s)
- Hui-Lin Zhang
- Guangdong Key Laboratory for Veterinary Drug Development and Safety Evaluation, South China Agricultural University, 510642 Guangzhou, China
| | - Si-Li Wu
- National Risk Assessment Laboratory For Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural University, 510642 Guangzhou, China
| | - Jia-Li Fu
- National Risk Assessment Laboratory For Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural University, 510642 Guangzhou, China
| | - Hong-Xia Jiang
- National Risk Assessment Laboratory For Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural University, 510642 Guangzhou, China
| | - Huan-Zhong Ding
- Guangdong Key Laboratory for Veterinary Drug Development and Safety Evaluation, South China Agricultural University, 510642 Guangzhou, China.
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Evaluation of Fluoroquinolone Resistance in Clinical Avian Pathogenic Escherichia coli Isolates from Flanders (Belgium). Antibiotics (Basel) 2020; 9:antibiotics9110800. [PMID: 33198103 PMCID: PMC7696922 DOI: 10.3390/antibiotics9110800] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 11/06/2020] [Accepted: 11/11/2020] [Indexed: 11/16/2022] Open
Abstract
Fluoroquinolones are frequently used antimicrobials for the treatment of avian pathogenic Escherichia coli (APEC) infections. However, rapid development and selection of resistance to this class of antimicrobial drugs is a significant problem. The aim of this study was to investigate the occurrence and mechanisms of antimicrobial resistance against enrofloxacin (ENRO) in APEC strains in Flanders, Belgium. One hundred and twenty-five APEC strains from broilers with clinical colibacillosis were collected in Flanders from November 2017 to June 2018. The minimum inhibitory concentration (MIC) of all strains and the mutant prevention concentration (MPC) of a sample of sensitive isolates were determined using a commercial gradient strip test and via the agar dilution method, respectively. Non-wild type (NWT) isolates were further characterized using polymerase chain reaction (PCR), gel electrophoresis and gene sequencing. Forty percent of the APEC strains were NWT according to the epidemiological cut-off (ECOFF) measure (MIC > 0.125 μg/mL). With respect to clinical breakpoints, 21% were clinically intermediate (0.5 ≤ MIC ≤ 1 μg/mL) and 10% were clinically resistant (MIC ≥ 2). The MPC values of the tested strains ranged from 0.064 to 1 μg/mL, resulting in MPC/MIC ratios varying from 4 to 32. The majority (92%) of the NWT strains carried one or two mutations in gyrA. Less than a quarter (22%) manifested amino acid substitutions in the topoisomerase IV parC subunit. Only three of the NWT strains carried a mutation in parE. Plasmid mediated quinolone resistance (PMQR) associated genes were detected in 18% of the NWT strains. In contrast to the relatively large number of NWT strains, only a small percentage of APEC isolates was considered clinically resistant. The most common MPC value for sensitive strains was 0.125 μg/mL. Some isolates showed higher values, producing wide mutant selection windows (MSW). Chromosomal mutations in DNA gyrase and topoisomerase IV were confirmed as the main source of decreased antimicrobial fluoroquinolone susceptibility, de-emphasizing the role of PMQR mechanisms.
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Poźniak B, Tikhomirov M, Motykiewicz-Pers K, Bobrek K, Świtała M. The influence of age and body weight gain on enrofloxacin pharmacokinetics in turkeys-Allometric approach to dose optimization. J Vet Pharmacol Ther 2019; 43:67-78. [PMID: 31845357 DOI: 10.1111/jvp.12833] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 11/05/2019] [Accepted: 12/02/2019] [Indexed: 01/20/2023]
Abstract
Enrofloxacin is a concentration-dependent antimicrobial used in bacterial infections in poultry. During a few months of a turkey's life, pharmacokinetics of drugs undergoes substantial changes which may compromise their efficacy due to variability in internal exposure (measured by area under the concentration-time curve, AUC). The aim of this study was to describe the effects of age on the pharmacokinetics of a single intravenous (i.v.) and oral administration of enrofloxacin at a dose of 10 mg/kg to turkeys. It was found that during a 2.5-month-long period of growth from 1.4 to 14.6 kg, the AUC after i.v. administration increased almost threefold due to a significant decrease in the body clearance (from a mean of 0.76-0.28 L hr-1 kg-1 ). Over the same period, the mean elimination half-life was prolonged from 2.65 to 7.03 hr. Oral administration resulted in a similar trend in pharmacokinetic parameters. For both routes, formation of the major metabolite, ciprofloxacin, was marginal. Protein binding was not age-dependent and never exceeded 50%. Body clearance, volume of distribution and elimination half-life were subjected to an allometric analysis and a novel, nonlinear dosage protocol has been proposed to improve the internal exposure to the drug in different age groups of turkeys.
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Affiliation(s)
- Błażej Poźniak
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, Wrocław, Poland
| | - Marta Tikhomirov
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, Wrocław, Poland
| | - Karolina Motykiewicz-Pers
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, Wrocław, Poland
| | - Kamila Bobrek
- Department of Epizootiology and Clinic of Bird and Exotic Animals, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, Wrocław, Poland
| | - Marcin Świtała
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, Wrocław, Poland
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Shotgun metagenomics for microbiome and resistome detection in septic patients with urinary tract infection. Int J Antimicrob Agents 2019; 54:803-808. [PMID: 31536754 DOI: 10.1016/j.ijantimicag.2019.09.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 08/02/2019] [Accepted: 09/11/2019] [Indexed: 12/26/2022]
Abstract
In sepsis, early and appropriate antibiotic therapy is key but is frequently challenging due to the increasing incidence of multidrug-resistant bacteria. The feasibility of shotgun metagenomics (SM) has been scarcely assessed in urinary tract infections (UTIs). In this study, the feasibility of SM to detect both the microbiome and the resistome in patients with confirmed UTI-related sepsis was evaluated. Urine samples were obtained from 40 adult patients with UTI-related sepsis. Conventional culture was used as a reference. Following total DNA extraction and depletion of human DNA, SM was performed using Ion ProtonTM technology. Bioinformatics analysis was conducted using GeneiousⓇ software as well as online tools from the Center for Genomic Epidemiology. For the microbiome, SM was consistently concordant when urine culture was positive with only one bacterium (mainly Escherichia coli). For the resistome, results were in agreement with antimicrobial susceptibility testing with no major discrepancies. SM consistently identified blaCTX-M genes responsible for resistance to third-generation cephalosporins. Resistance to aminoglycosides and fluoroquinolones was identified in all patients. This pilot study confirms that SM can provide clinically relevant information both on the microbiome and the resistome from urine samples of patients with UTI-related sepsis.
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Vounba P, Arsenault J, Bada-Alambédji R, Fairbrother JM. Pathogenic potential and the role of clones and plasmids in beta-lactamase-producing E. coli from chicken faeces in Vietnam. BMC Vet Res 2019; 15:106. [PMID: 30947723 PMCID: PMC6449924 DOI: 10.1186/s12917-019-1849-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2018] [Accepted: 03/26/2019] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Antimicrobial resistance (AMR) in food-producing animals is a global public health issue. This study investigated AMR and virulence profiles of E. coli isolated from healthy chickens in Vietnam. E. coli were isolated from fecal samples collected in five chicken farms located in the provinces of Hoa Binh, Thai Nguyen and Bac Giang in the North of Vietnam. These isolates were examined by disk diffusion for their AMR, PCR for virulence and AMR genes, pulsed-field gel electrophoresis for relatedness between blaCMY-2/blaCTX-M-positive isolates, electroporation for transferability of blaCMY-2 or blaCTX-M genes and sequencing for mutations responsible for ciprofloxacin resistance. RESULTS Up to 99% of indicator isolates were multidrug resistant. Resistance to third-generation cephalosporins (3GC) was encoded by both blaCTX-M and blaCMY-2 genes; blaCTX-M genes being of genotypes blaCTX-M-1, - 14, - 15, - 17, - 57 and - 87, whereas ciprofloxacin resistance was due to mutations in the gyrA and parC genes. Some isolates originating from farms located in different provinces of Vietnam were found to be closely related, suggesting they may have been disseminated from a same source of contamination. Plasmids may also have played a role in the diffusion of 3GC-resistance as the blaCMY-2 gene was located on plasmids A/C and I1, and the blaCTX-M gene variants were carried by I1, FIB, R and HI1. Plasmids carrying the blaCMY-2/blaCTX-M genes also co-transferred resistance to other antimicrobials. In addition, isolates potentially capable of infecting humans, of which some produced blaCMY-2/blaCTX-M, were identified in this study. CONCLUSIONS Both clones and plasmids could be involved in the dissemination of 3GC-resistant E. coli within and between chicken farms in Vietnam. These results demonstrate the necessity to monitor AMR and control antimicrobial use in poultry in Vietnam.
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Affiliation(s)
- Passoret Vounba
- Department of Pathology and Microbiology, Faculty of Veterinary Medicine, Université de Montréal, the Swine and Poultry Infectious Diseases Research Centre (CRIPA) and the Research Group on Zoonoses and Public Health (GREZOSP), St-Hyacinthe, Quebec Canada
| | - Julie Arsenault
- Department of Pathology and Microbiology, Faculty of Veterinary Medicine, Université de Montréal, the Swine and Poultry Infectious Diseases Research Centre (CRIPA) and the Research Group on Zoonoses and Public Health (GREZOSP), St-Hyacinthe, Quebec Canada
| | - Rianatou Bada-Alambédji
- Department of Public Health and Environment, Ecole Inter-Etats des Sciences et Médecine Vétérinaires (EISMV), de Dakar, Senegal
| | - John Morris Fairbrother
- Department of Pathology and Microbiology, Faculty of Veterinary Medicine, Université de Montréal, the Swine and Poultry Infectious Diseases Research Centre (CRIPA) and the Research Group on Zoonoses and Public Health (GREZOSP), St-Hyacinthe, Quebec Canada
- OIE Reference Laboratory for Escherichia coli (EcL), Université de Montréal, 3200 Sicotte, Saint-Hyacinthe, QC J2S 2M2 Canada
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11
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Vounba P, Arsenault J, Bada-Alambédji R, Fairbrother JM. Prevalence of antimicrobial resistance and potential pathogenicity, and possible spread of third generation cephalosporin resistance, in Escherichia coli isolated from healthy chicken farms in the region of Dakar, Senegal. PLoS One 2019; 14:e0214304. [PMID: 30913237 PMCID: PMC6435184 DOI: 10.1371/journal.pone.0214304] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Accepted: 03/10/2019] [Indexed: 12/24/2022] Open
Abstract
Escherichia coli is a normal inhabitant of the intestinal microbiota of chickens, a small proportion of which may be avian pathogenic E. coli (APEC) or potential extraintestinal pathogenic E. coli (ExPEC), capable of causing disease in humans. These E. coli may also be resistant to antimicrobials of critical importance in human or veterinary health. This study aims to 1) determine the prevalence of antimicrobial resistance (AMR) and resistance genes, multidrug resistance (MDR), chromosomal mechanisms of quinolone-resistance and virulence profiles of E. coli isolated from healthy chicken farms in the region of Dakar, Senegal, 2) investigate the spread of third-generation cephalosporins (3GC) resistance in E. coli isolated from healthy chicken farms with respect to virulence and resistance genes, serogroups, Pulsed-Field Gel Electrophoresis (PFGE), phylogenetic groups, plasmid types and transferability and 3) determine whether nonsusceptibility against 3GC on farms could be linked to risk factors. More than 68% of isolates from environmental faecal and drinking water samples, carcasses and carcass washes collected on 32 healthy chicken farms were multidrug resistant (MDR), resistance to antimicrobials critical in human health (3GC or ciprofloxacin) being found in all types of samples. Ciprofloxacin resistance was due to mutations in the gyrA and parC genes, 95% of tested farms harboring isolates carrying three mutations, in gyrA (Ser83Ile and Asp87Asn) and parC (Ser80Ile). Nine of the 32 farms (28.1%) demonstrated the presence of one or more 3GC-nonsusceptible indicator isolates but none of the potential risk factors were significantly associated with this presence on farms. Following ceftriaxone enrichment, presumptive extended-spectrum beta-lactamase/AmpC-beta-lactamase (ESBL/AmpC)-producer isolates were found in 17 of the 32 farms. 3GC resistance was mediated by blaCMY-2 or blaCTX-M genes, blaCTX-M being of genotypes blaCTX-M-1, blaCTX-M-8 and for the first time in chickens in Senegal, the genotype blaCTX-M-15. Clonally related ESBL/AmpC-producer isolates were found on different farms. In addition, blaCTX-M genes were identified on replicon plasmids I1 and K/B and blaCMY-2 on K/B, I1 and B/O. These plasmids were found in isolates of different clusters. In addition, 18 isolates, some of which were ESBL/AmpC-producers, were defined as potential human ExPEC. In conclusion, E. coli isolates potentially pathogenic for humans and demonstrating MDR, with resistance expressed against antimicrobials of critical importance in human health were found in healthy chickens in Senegal. Our results suggest that both clonal spreading and horizontal gene transfer play a role in the spread of 3GC-resistance and that chickens in Senegal could be a reservoir for AMR and ExPEC for humans. These results highlight the importance of raising awareness about compliance with biosecurity measures and prudent use of antimicrobials.
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Affiliation(s)
- Passoret Vounba
- Department of Pathology and Microbiology, Faculty of Veterinary Medicine, Université de Montréal, The Swine and Poultry Infectious Diseases Research Centre (CRIPA) and the Research Group on Zoonoses and Public Health (GREZOSP), St-Hyacinthe, Quebec, Canada
| | - Julie Arsenault
- Department of Pathology and Microbiology, Faculty of Veterinary Medicine, Université de Montréal, The Swine and Poultry Infectious Diseases Research Centre (CRIPA) and the Research Group on Zoonoses and Public Health (GREZOSP), St-Hyacinthe, Quebec, Canada
| | - Rianatou Bada-Alambédji
- Department of Public Health and Environment, Ecole Inter-Etats des Sciences et Médecine Vétérinaires (EISMV) de Dakar, Dakar, Senegal
| | - John M. Fairbrother
- Department of Pathology and Microbiology, Faculty of Veterinary Medicine, Université de Montréal, The Swine and Poultry Infectious Diseases Research Centre (CRIPA) and the Research Group on Zoonoses and Public Health (GREZOSP), St-Hyacinthe, Quebec, Canada
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12
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Xiao X, Jiang L, Lan W, Jiang Y, Wang Z. In vivo pharmacokinetic/Pharmacodynamic modeling of Enrofloxacin against Escherichia coli in broiler chickens. BMC Vet Res 2018; 14:374. [PMID: 30497453 PMCID: PMC6267815 DOI: 10.1186/s12917-018-1698-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Accepted: 11/19/2018] [Indexed: 11/10/2022] Open
Abstract
Background Systemic Escherichia coli infections cause early mortality of commercial broiler chickens. Although enrofloxacin has long been used in poultry, the in vivo pharmacokinetic/pharmacodynamic (PK/PD) relationship of enrofloxacin against E. coli is unclear. The present study aimed to establish an in vivo PK/PD model of enrofloxacin against E. coli in seven-day-old chicks and to ascertain whether the selection of target organ for PD determination is critical for parameter magnitude calculation in enrofloxacin PK/PD modeling. Results The in vivo effectiveness of enrofloxacin against E. coli in different organs varied, with the Emax ranging from − 4.4 to − 5.8 Log10 colony forming units (cfu)/mL or cfu/g. Both the surrogate AUC0–24/MIC of enrofloxacin or AUC0–24/MIC of the combination of enrofloxacin and ciprofloxacin correlated well with effectiveness in each organ. The AUC0–24/MIC ratio of the combination of enrofloxacin and ciprofloxacin producing bactericidal and elimination effects were 21.29 and 32.13 in blood; 41.68, and 58.52 in the liver; and 27.65 and 46.22 in the lung, respectively. Conclusions The in vivo effectiveness of enrofloxacin against E. coli in different organs was not identical after administration of the same dosage. To describe the magnitude of PK/PD parameter exactly, bacterial loading reduction in different organs as PD endpoints should be evaluated and compared in PK/PD modeling. The selection of a target organ to evaluate PDs is critical for rational dosage recommendation.
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Affiliation(s)
- Xia Xiao
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, Jiangsu, People's Republic of China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, 225009, People's Republic of China.,Institutes of Agricultural Science and Technology Development, 48 East Wenhui Road, Yangzhou, Jiangsu, 225009, People's Republic of China
| | - Lijie Jiang
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, Jiangsu, People's Republic of China
| | - Weixuan Lan
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, Jiangsu, People's Republic of China
| | - Yongjia Jiang
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, Jiangsu, People's Republic of China
| | - Zhiqiang Wang
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, Jiangsu, People's Republic of China. .,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, 225009, People's Republic of China. .,Institutes of Agricultural Science and Technology Development, 48 East Wenhui Road, Yangzhou, Jiangsu, 225009, People's Republic of China.
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13
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Identification and characterization of plasmid-mediated quinolone resistance determinants in Enterobacteriaceae isolated from healthy poultry in Brazil. INFECTION GENETICS AND EVOLUTION 2018; 60:66-70. [DOI: 10.1016/j.meegid.2018.02.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Revised: 01/09/2018] [Accepted: 02/03/2018] [Indexed: 11/18/2022]
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14
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Bandyopadhyay S, Banerjee J, Bhattacharyya D, Samanta I, Mahanti A, Dutta TK, Ghosh S, Nanda PK, Dandapat P, Bandyopadhyay S. Genomic Identity of Fluoroquinolone-Resistant blaCTX-M-15-Type ESBL and pMAmpC β-Lactamase Producing Klebsiella pneumoniae from Buffalo Milk, India. Microb Drug Resist 2018; 24:1345-1353. [PMID: 29565231 DOI: 10.1089/mdr.2017.0368] [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: 10/17/2022] Open
Abstract
We investigated the occurrence of extended-spectrum β-lactamase (ESBL) and AmpC-type β-lactamase (ACBL) producing quinolone-resistant Klebsiella pneumoniae (KP) in milk samples of apparently healthy buffaloes (n = 348) and buffaloes (n = 19) with evidence of subclinical mastitis from seven districts of West Bengal, India. In total, 12 ESBL producing KP were isolated with blaCTX-M-15 gene and 7 of them were ACBL producers, as well. The blaCTX-M-15 genes were carried by transposable element ISEcp1. The plasmid-mediated quinolone resistance genes-qnrS, qnrA, qnrB, qepA, and aac(6')-Ib-cr were detected in five, one, three, four, and one isolate (s), respectively. In addition, eight isolates carried mutation in gyrase (gyrA) and six in topoisomerase IV (parC). Resistance markers/genes for sulfonamide (sul1), tetracycline [tet(A) and tet(B)], and aminoglycoside (aacC2) were also detected in eight, four, and one isolate(s), respectively. The class I integrons identified in five isolates carried aad2/aad5 and dfrA12/dfrA17 gene cassettes. The enterobacterial repetitive intergenic consensus-PCR revealed that all the isolates were genetically diverse and comprised a heterogeneous population. Isolation of multidrug-resistant KP, a typical nosocomial pathogen from buffalo milk, reiterates the need to monitor farm animals for ESBL producing Enterobacteriaceae and emphasizes on judicious use of antibiotics in animal husbandry sector.
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Affiliation(s)
| | - Jaydeep Banerjee
- 1 ICAR-Indian Veterinary Research Institute , ERS, Kolkata, India
| | | | | | | | - Tapan K Dutta
- 3 Department of Veterinary Microbiology, CAU , Selesih, Aizawl, Mizoram, India
| | - Sarbaswarup Ghosh
- 4 Sasya Shyamala Krishi Vigyan Kendra, Ramakrishna Mission Vivekananda Educational and Research Institute , Arapanch, Sonarpur, Kolkata, India
| | - Pramod K Nanda
- 1 ICAR-Indian Veterinary Research Institute , ERS, Kolkata, India
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15
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Niero G, Bortolaia V, Vanni M, Intorre L, Guardabassi L, Piccirillo A. High diversity of genes and plasmids encoding resistance to third-generation cephalosporins and quinolones in clinical Escherichia coli from commercial poultry flocks in Italy. Vet Microbiol 2018. [DOI: 10.1016/j.vetmic.2018.02.012] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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16
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Abstract
ABSTRACT
Major concerns surround the use of antimicrobial agents in farm-raised fish, including the potential impacts these uses may have on the development of antimicrobial-resistant pathogens in fish and the aquatic environment. Currently, some antimicrobial agents commonly used in aquaculture are only partially effective against select fish pathogens due to the emergence of resistant bacteria. Although reports of ineffectiveness in aquaculture due to resistant pathogens are scarce in the literature, some have reported mass mortalities in
Penaeus monodon
larvae caused by
Vibrio harveyi
resistant to trimethoprim-sulfamethoxazole, chloramphenicol, erythromycin, and streptomycin. Genetic determinants of antimicrobial resistance have been described in aquaculture environments and are commonly found on mobile genetic elements which are recognized as the primary source of antimicrobial resistance for important fish pathogens. Indeed, resistance genes have been found on transferable plasmids and integrons in pathogenic bacterial species in the genera
Aeromonas
,
Yersinia
,
Photobacterium
,
Edwardsiella
, and
Vibrio
. Class 1 integrons and IncA/C plasmids have been widely identified in important fish pathogens (
Aeromonas
spp.,
Yersinia
spp.,
Photobacterium
spp.,
Edwardsiella
spp., and
Vibrio
spp.) and are thought to play a major role in the transmission of antimicrobial resistance determinants in the aquatic environment. The identification of plasmids in terrestrial pathogens (
Salmonella enterica
serotypes,
Escherichia coli
, and others) which have considerable homology to plasmid backbone DNA from aquatic pathogens suggests that the plasmid profiles of fish pathogens are extremely plastic and mobile and constitute a considerable reservoir for antimicrobial resistance genes for pathogens in diverse environments.
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Nayme K, Barguigua A, Bouchrif B, Karraouan B, El Otmani F, Elmdaghri N, Zerouali K, Timinouni M. Genotypic characterization of quinolone resistant-Escherichia coli isolates from retail food in Morocco. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2017; 52:107-114. [PMID: 28099089 DOI: 10.1080/03601234.2016.1239985] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2016] [Accepted: 08/24/2016] [Indexed: 06/06/2023]
Abstract
This study was conducted to assess the retail food as a possible vehicle for antimicrobial resistant, particularly quinolones resistant and pathogenic Escherichia coli. We determined the prevalence and characteristics of nalidixic acid (Nal) resistant E. coli isolates from diverse retail food samples. In all, 70 (28%) of 250 E. coli isolates studied were Nal-resistant E. coli and 91% of these were multi-drug resistant. Plasmid mediated quinolone resistance genes were identified in 32 isolates, including aac(6')-Ib-cr (n = 16), qnrS1 (n = 11) and qnrB19 (n = 7). Mutations in gyr A and par C genes were detected among 80% of the isolates, and the isolates showed substitution Ser83-Leu and Asp87-Asn in gyrA and Ser80-Ile in parC. In addition, three different gene cassettes were identified (aadA1, aadA7, aac(3)-Id) in 18%. Virulence-associated genes stx1, eae, sfa, hlyA and stx2 were found in six (8%), three (4%), two (3%), three (4%) and three (4%) isolates, respectively. E. coli isolates of phylogenetic group A were dominant (64%, 45/70). Pulsed field gel electrophoresis revealed none epidemiological relationship between these isolates. The results of this work report the higher frequency of Nal-resistant E. coli isolates from Moroccan retail food samples including MDR and pathogenic isolates.
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Affiliation(s)
- Kaotar Nayme
- a Molecular Bacteriology Laboratory, Institut Pasteur du Maroc , Casablanca , Morocco
- b Microbiology Laboratory, Faculty of Medicine and Pharmacy, University Hassan II , Casablanca , Morocco
| | - Abouddihaj Barguigua
- c Faculty of Medicine and Pharmacy, University Sultan Moulay Slimane , Beni Mellal , Morocco
| | - Brahim Bouchrif
- d Food Microbiology Laboratory, Institut Pasteur du Maroc , Casablanca , Morocco
| | - Bouchra Karraouan
- e Microbiology, Health and Environment Team Research, Department of Biology , Faculty of Sciences, ChouaibDoukkali University , El Jadida , Morocco
| | | | - Naima Elmdaghri
- a Molecular Bacteriology Laboratory, Institut Pasteur du Maroc , Casablanca , Morocco
- b Microbiology Laboratory, Faculty of Medicine and Pharmacy, University Hassan II , Casablanca , Morocco
- f University Hospital Center Ibn Rochd , Casablanca , Morocco
| | - Khalid Zerouali
- b Microbiology Laboratory, Faculty of Medicine and Pharmacy, University Hassan II , Casablanca , Morocco
- f University Hospital Center Ibn Rochd , Casablanca , Morocco
| | - Mohammed Timinouni
- a Molecular Bacteriology Laboratory, Institut Pasteur du Maroc , Casablanca , Morocco
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18
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Contribution of target alteration, protection and efflux pump in achieving high ciprofloxacin resistance in Enterobacteriaceae. AMB Express 2016; 6:126. [PMID: 28004362 PMCID: PMC5177599 DOI: 10.1186/s13568-016-0294-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Accepted: 11/22/2016] [Indexed: 11/29/2022] Open
Abstract
The study aims at revealing the comprehensive contribution of target alteration, target protection and efflux pump to the development of high level of ciprofloxacin (CIP) resistance in Enterobacteriaceae bacteria of environmental, clinical and poultry origins. Antibiotic susceptibility test was used to detect CIP resistant (CIPR) isolates and MICCIP was determined by broth microdilution method. The presence of qnrS gene was identified by PCR and Southern blot hybridization (SBH) confirmed their location. Checkerboard titration demonstrated the effect of NMP on CIP action. PCR followed by sequencing and in silico analysis revealed the contribution of mutations in acrR, marR and gyrA to CIPR development. Out of 152 isolates, 101 were detected as CIPR. Randomly selected 53 isolates (MICCIP 4–512 µg/mL) were identified as Escherichia spp. (26), Enterobacter spp. (7), Klebsiella spp. (5) and Salmonella spp. (15) and of them 31 isolates carried qnrS. qnrS harboring 18 highly CIPR isolates (MICCIP: 256–512 µg/mL) were selected for further study. SBH confirmed 7 isolates harbored qnrS gene in plasmids. The acrA, acrB and tolC were present in all 18 isolates and NMP had an additive (12-isolates) or synergistic (6-isolates) effect on CIP action. Most isolates contained double amino acid (aa) substitutions (S83L and D87N) in QRDR of GyrA resulting in an altered conformation of putative CIP binding pocket. However, some isolates contained single (S83L or S83Y) or no aa substitution but showed high CIPR implicating that the concerted action of three mechanisms is responsible for high CIPR with the most significant role of efflux pump.
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19
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Taylor NM, Wales AD, Ridley AM, Davies RH. Farm level risk factors for fluoroquinolone resistance inE. coliand thermophilicCampylobacterspp. on poultry farms. Avian Pathol 2016; 45:559-68. [DOI: 10.1080/03079457.2016.1185510] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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20
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Mezhoud H, Chantziaras I, Iguer-Ouada M, Moula N, Garmyn A, Martel A, Touati A, Smet A, Haesebrouck F, Boyen F. Presence of antimicrobial resistance in coliform bacteria from hatching broiler eggs with emphasis on ESBL/AmpC-producing bacteria. Avian Pathol 2016; 45:493-500. [DOI: 10.1080/03079457.2016.1167837] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- H. Mezhoud
- Laboratoire d’Ecologie Microbienne, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, Bejaia, Algeria
| | - I. Chantziaras
- Veterinary Epidemiology Unit, Department of Reproduction, Obstetrics and Herd Health, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
- Department of Pathology, Bacteriology and Avian Diseases, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - M. Iguer-Ouada
- Laboratoire Associé en Ecosystèmes Marin et Aquacole, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, Bejaia, Algeria
| | - N. Moula
- Department of Animal Production, Faculty of Veterinary Medicine, University of Liege, Liege, Belgium
- Tropical Veterinary Institute, Faculty of Veterinary Medicine, University of Liege, Liege, Belgium
| | - A. Garmyn
- Department of Pathology, Bacteriology and Avian Diseases, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - A. Martel
- Department of Pathology, Bacteriology and Avian Diseases, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - A. Touati
- Laboratoire d’Ecologie Microbienne, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, Bejaia, Algeria
| | - A. Smet
- Department of Pathology, Bacteriology and Avian Diseases, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - F. Haesebrouck
- Department of Pathology, Bacteriology and Avian Diseases, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - F. Boyen
- Department of Pathology, Bacteriology and Avian Diseases, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
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21
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Del Rio-Avila C, Rosario C, Arroyo-Escalante S, Carrillo-Casas EM, Díaz-Aparicio E, Suarez-Güemes F, Silva-Sanchez J, Xicohtencatl-Cortes J, Maravilla P, Hernández-Castro R. Characterisation of quinolone-resistant Escherichia coli of 1997 and 2005 isolates from poultry in Mexico. Br Poult Sci 2016; 57:494-500. [DOI: 10.1080/00071668.2016.1187716] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- C. Del Rio-Avila
- División de Estudios de Posgrado, Posgrado en Ciencias de la Salud y Producción Animal, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Coyoacan, México
| | - C. Rosario
- Departamento de Medicina y Zootecnia de Aves, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Coyoacan, México
| | - S. Arroyo-Escalante
- Departamento de Biología Molecular e Histocompatibilidad, Hospital General “Dr. Manuel Gea González”, Tlalpan, México
| | - E. M. Carrillo-Casas
- Departamento de Biología Molecular e Histocompatibilidad, Hospital General “Dr. Manuel Gea González”, Tlalpan, México
| | - E. Díaz-Aparicio
- Departamento de Enfermedades en Pequeños Rumiantes, Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias, Cuajimalpa, México
| | - F. Suarez-Güemes
- Departamento de Microbiología e Inmunología, Universidad Nacional Autónoma de México, Coyoacan, México
| | - J. Silva-Sanchez
- Departamento de Diagnóstico Epidemiológico, Instituto Nacional de Salud Pública, Cuernavaca, México
| | - J. Xicohtencatl-Cortes
- Laboratorio de Bacteriología Intestinal, Hospital Infantil de México, Cuauhtémoc, México
| | - P. Maravilla
- Departamento de Ecología de Agentes Patógenos, Hospital General “Dr. Manuel Gea González”, Tlalpan, México
| | - R. Hernández-Castro
- Departamento de Ecología de Agentes Patógenos, Hospital General “Dr. Manuel Gea González”, Tlalpan, México
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22
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Balakrishnan S, Antony PX, Mukhopadhyay HK, Pillai RM, Thanislass J, Padmanaban V, Srinivas MV. Genetic characterization of fluoroquinolone-resistant Escherichia coli associated with bovine mastitis in India. Vet World 2016; 9:705-9. [PMID: 27536030 PMCID: PMC4983120 DOI: 10.14202/vetworld.2016.705-709] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Accepted: 06/03/2016] [Indexed: 11/16/2022] Open
Abstract
AIM The present study was undertaken to characterize the mutation in gyrA (DNA gyrase) and parC (topoisomerase IV) genes responsible for fluoroquinolone resistance in Escherichia coli isolates associated with the bovine mastitis. MATERIALS AND METHODS A total of 92 milk samples from bovine mastitis cases were sampled in and around Puducherry (Southern India). Among these samples, 30 isolates were bacteriologically characterized as E. coli. Minimum inhibitory concentrations (MIC) of fluoroquinolones of these 30 E. coli isolates were evaluated by resazurin microtiter assay. Then, the quinolone resistance determining region (QRDR) (gyrA and parC genes) of these E. coli isolates was genetically analyzed for determining the chromosomal mutation causing fluoroquinolone resistance. RESULTS E. coli isolates showed a resistance rate of 63.33%, 23.33% and 30.03% to nalidixic acid, ciprofloxacin and enrofloxacin, respectively. Mutations were found at 83(rd) and 87(th) amino acid position of gyrA gene, and at 80(th) and 108(th) amino acid position of parC gene in our study isolates. Among these five isolates, one had a single mutation at 83 amino acid position of gyrA with reduced susceptibility (0.5 µg/ml) to ciprofloxacin. Then, in remaining four isolates, three isolates showed triple mutation (at gyrA: S83⟶L and D87⟶N; at parC: S80⟶I) and the fifth isolate showed an additional mutation at codon 108 of parC (A108⟶T) with the increased ciprofloxacin MIC of 16-128 µg/ml. The most common mutation noticed were at S83⟶L and D87⟶N of gyrA and S80⟶I of ParC. CONCLUSION The study confirms the presence of mutation/s responsible for fluoroquinolone resistance in QRDR of gyrA and parC genes of E. coli isolates of animal origin, and there is increased rate of fluoroquinolone resistance with high-level of MIC. The mutations observed in this study were similar to that of human isolates.
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Affiliation(s)
- Sangeetha Balakrishnan
- Department of Veterinary Microbiology, Rajiv Gandhi Institute of Veterinary Education and Research, Puducherry - 605 009, India
| | - Prabhakar Xavier Antony
- Department of Veterinary Microbiology, Rajiv Gandhi Institute of Veterinary Education and Research, Puducherry - 605 009, India
| | - Hirak Kumar Mukhopadhyay
- Department of Veterinary Microbiology, Rajiv Gandhi Institute of Veterinary Education and Research, Puducherry - 605 009, India
| | - Raghavan Madhusoodanan Pillai
- Department of Veterinary Microbiology, Rajiv Gandhi Institute of Veterinary Education and Research, Puducherry - 605 009, India
| | - Jacob Thanislass
- Department of Veterinary Biochemistry, Rajiv Gandhi Institute of Veterinary Education and Research, Puducherry - 605 009, India
| | - Vijayalakshmi Padmanaban
- Department of Veterinary Medicine, Rajiv Gandhi Institute of Veterinary Education and Research, Puducherry - 605 009, India
| | - Mouttou Vivek Srinivas
- Department of Veterinary Microbiology, Rajiv Gandhi Institute of Veterinary Education and Research, Puducherry - 605 009, India
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23
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Pavlova I, Danova S, Naidenski H, Tropcheva R, Milanova A. Effect of probiotics on enrofloxacin disposition in gastrointestinal tract of poultry. J Vet Pharmacol Ther 2015; 38:549-55. [DOI: 10.1111/jvp.12232] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2014] [Accepted: 03/23/2015] [Indexed: 11/27/2022]
Affiliation(s)
- I. Pavlova
- Department of Pharmacology, Veterinary Physiology and Physiological Chemistry; Faculty of Veterinary Medicine; Trakia University; Stara Zagora Bulgaria
| | - S. Danova
- The Stephan Angeloff Institute of Microbiology; Bulgarian Academy of Sciences (BAS); Sofia Bulgaria
| | - H. Naidenski
- The Stephan Angeloff Institute of Microbiology; Bulgarian Academy of Sciences (BAS); Sofia Bulgaria
| | - R. Tropcheva
- The Stephan Angeloff Institute of Microbiology; Bulgarian Academy of Sciences (BAS); Sofia Bulgaria
| | - A. Milanova
- Department of Pharmacology, Veterinary Physiology and Physiological Chemistry; Faculty of Veterinary Medicine; Trakia University; Stara Zagora Bulgaria
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Devreese M, Antonissen G, De Baere S, De Backer P, Croubels S. Effect of administration route and dose escalation on plasma and intestinal concentrations of enrofloxacin and ciprofloxacin in broiler chickens. BMC Vet Res 2014; 10:289. [PMID: 25440469 PMCID: PMC4260181 DOI: 10.1186/s12917-014-0289-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2014] [Accepted: 11/25/2014] [Indexed: 11/30/2022] Open
Abstract
Background The (mis)use of fluoroquinolones in the fowl industry has led to an alarming incidence of fluoroquinolone resistance in pathogenic as well as commensal bacteria. Next to simply reducing antimicrobial consumption, optimizing dosage regimens can be regarded as a suitable strategy to reduce antimicrobial resistance development without jeopardizing therapy efficacy and outcome. A first step in order to limit antimicrobial resistance is to assess the exposure of the intestinal microbiota to enrofloxacin after different treatment strategies. Therefore, a study was conducted in broiler chickens to assess the effect of route of administration (oral versus intramuscular) and dose escalation (10 and 50 mg/kg body weight) on plasma and intestinal concentrations of enrofloxacin and its main metabolite ciprofloxacin after treatment with enrofloxacin once daily for five consecutive days. Four different parts of the intestinal tract were sampled: ileum, cecum, colon and cloaca. A liquid chromatography-tandem mass spectrometry (LC-MS/MS) method was developed to quantify both analytes in plasma and intestinal content. Sample preparation prior to LC-MS/MS analysis consisted of extraction with ethyl acetate. For intestinal content samples PBS buffer was added before extraction. The supernatant was evaporated to dryness and resuspended in water prior to analysis. Results The results in plasma and intestinal content demonstrated that biotransformation of enro- to ciprofloxacin in broiler chickens is limited. In general, the intestinal microbiota in cecum and colon is exposed to significant levels of enrofloxacin after conventional treatment (21–130 μg/g). A clear increase of intestinal concentrations was demonstrated after administration of a five-fold higher dose (31–454 μg/g). After intramuscular administration, intestinal concentrations were comparable, except for the higher levels in cloaca due to the complete bioavailability and urinary excretion. Conclusions The intestinal microbiota is exposed to high levels of the antimicrobial, after oral as well as parenteral therapy. Furthermore, a dose and time dependent correlation was observed. The impact of the detected intestinal levels on resistance selection in the intestinal microbiota has to be further investigated. Electronic supplementary material The online version of this article (doi:10.1186/s12917-014-0289-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Mathias Devreese
- Department of Pharmacology, Toxicology and Biochemistry, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium.
| | - Gunther Antonissen
- Department of Pharmacology, Toxicology and Biochemistry, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium.
| | - Siegrid De Baere
- Department of Pharmacology, Toxicology and Biochemistry, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium.
| | - Patrick De Backer
- Department of Pharmacology, Toxicology and Biochemistry, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium.
| | - Siska Croubels
- Department of Pharmacology, Toxicology and Biochemistry, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium.
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Cagnardi P, Ferraresi C, Lucatello L, Meucci V, Intorre L, Grilli G, Piccirillo A, Giacomelli M, Montesissa C. Enrofloxacin against Escherichia coli in turkeys: Which treatment scheme is effective? Poult Sci 2014; 93:1667-74. [DOI: 10.3382/ps.2014-03886] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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