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Oncel B, Hasdemir U, Aksu B, Pournaras S. Antibiotic resistance in Campylobacter jejuni and Campylobacter coli: significant contribution of an RND type efflux pump in erythromycin resistance. J Chemother 2024; 36:110-118. [PMID: 37830134 DOI: 10.1080/1120009x.2023.2267895] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 10/04/2023] [Indexed: 10/14/2023]
Abstract
In this study, we aimed to determine the antibiotic resistance status of Campylobacter spp. isolated from human infections in our region, including the role of mechanisms involved in erythromycin resistance. Standard methods were used for the isolation, identification and antibiotic susceptibility testing of Campylobacter spp. isolates. Erythromycin-resistant mutants were selected from erythromycin-susceptible clinical isolates, and the erythromycin resistance mechanisms were investigated phenotypically by determining the erythromycin MICs of isolates in the presence and absence of the resistance nodulation cell division (RND) type efflux pump inhibitor, phenylalanine-arginine β-naphthylamide dihydrochloride (PAβN), and genotypically by determining ribosomal and cmeABC alterations using PCR and DNA sequence analysis. Campylobacter spp., including 184 C. jejuni and 20 C. coli in a two-year period, were the most frequently isolated gastrointestinal bacterial pathogens in our region. However, in both C. jejuni and C. coli, resistance to tetracycline and ciprofloxacin were found to be high, erythromycin resistance was especially high (20%) in C. coli. With a ribosomal alteration, A2075G, which was found to be associated with high-level erythromycin resistance in clinical isolates, PAβN significantly reduced the erythromycin MICs in both clinical isolates and mutants. An important finding of this study, while considering cmeABC operon, is the explanation of why erythromycin resistance is more common among C. coli than C. jejuni, bearing in mind the specific deletions and alterations in the intergenic region of the operon in all erythromycin-resistant C. coli isolates. Ultimately, these findings revealed the significant role of RND-type efflux activity in increased erythromycin MICs of the isolates.
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Affiliation(s)
- Beyza Oncel
- Department of Medical Microbiology, Marmara University Pendik Training and Research Hospital, Istanbul, Turkey
| | - Ufuk Hasdemir
- Department of Medical Microbiology, Marmara University Pendik Training and Research Hospital, Istanbul, Turkey
| | - Burak Aksu
- Department of Medical Microbiology, Marmara University Pendik Training and Research Hospital, Istanbul, Turkey
- Department of Medical Microbiology, Eastern Mediterranean University, Famagusta, Turkey
| | - Spyros Pournaras
- Laboratory of Clinical Microbiology, Attikon University Hospital, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
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Frazão MR, Cao G, Medeiros MIC, Duque SDS, Allard MW, Falcão JP. Antimicrobial Resistance Profiles and Phylogenetic Analysis of Campylobacter jejuni Strains Isolated in Brazil by Whole Genome Sequencing. Microb Drug Resist 2020; 27:660-669. [PMID: 33021437 DOI: 10.1089/mdr.2020.0184] [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: 01/28/2023] Open
Abstract
Aims: The objectives of this work were to use whole genome sequencing (WGS) to determine the antimicrobial resistance genotypes of 116 Campylobacter jejuni strains isolated in Brazil and to compare it with the results obtained by antimicrobial susceptibility testing (AST). In addition, WGS was used to uncover the phylogenetic relationship among those strains. Results: By AST, the C. jejuni strains resistant to ciprofloxacin, tetracycline, doxycycline, and erythromycin were 51 (44%), 41 (35.3%), 41 (35.3%), and 6 (5.2%), respectively. By WGS, the genes aph(3')III, aadE, blaOXA-449, blaOXA-184, blaOXA-61, and tet(O) were detected in 6 (5.2%), 3 (2.6%), 1 (0.9%), 10 (8.6%), 55 (47.4%), and 44 (38%) strains, respectively. Fifty-four (46.6%) strains showed the mutation T86I in the gyrA gene, and four (3.4%) strains presented the mutation A2075G in the 23S rRNA gene. The correlation between AST and WGS was 100% for ciprofloxacin, 97.5% for tetracyclines, and 66.7% for erythromycin. The whole genome single nucleotide polymorphism (SNP) tree clustered the C. jejuni strains into two clades comprising strains that were highly related from different sources, places, and years. Conclusion: The high rates of C. jejuni strains resistant to ciprofloxacin and tetracyclines are of concern and may represent a public health problem. WGS has a potential to be a powerful tool for the prediction of resistance of antibiotics used to treat campylobacteriosis. The results obtained by whole genome SNP analysis suggested the potential for transmission between clinical and nonclinical sources and between human and animal sources over the course of 20 years in Brazil.
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Affiliation(s)
- Miliane Rodrigues Frazão
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, FCFRP-USP, Ribeirão Preto, Brazil
| | - Guojie Cao
- Division of Microbiology, Office of Regular Science, Center for Food Safety and Applied Nutrition, U.S. Food and Drug Administration, College Park, Maryland, USA
| | | | | | - Marc William Allard
- Division of Microbiology, Office of Regular Science, Center for Food Safety and Applied Nutrition, U.S. Food and Drug Administration, College Park, Maryland, USA
| | - Juliana Pfrimer Falcão
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, FCFRP-USP, Ribeirão Preto, Brazil
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Liu S, Kilonzo-Nthenge A, Nahashon SN, Pokharel B, Mafiz AI, Nzomo M. Prevalence of Multidrug-Resistant Foodborne Pathogens and Indicator Bacteria from Edible Offal and Muscle Meats in Nashville, Tennessee. Foods 2020; 9:foods9091190. [PMID: 32872118 PMCID: PMC7555593 DOI: 10.3390/foods9091190] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 08/18/2020] [Accepted: 08/22/2020] [Indexed: 12/17/2022] Open
Abstract
This study investigated the prevalence of antimicrobial-resistant bacteria in retail edible offal and muscle meats in Nashville, Tennessee. A total of 348 retail meats (160 edible offal and 188 muscle) were analyzed for Salmonella enterica serovar, Campylobacter, Escherichia coli, E. coli O157:H7, and enterococci. Bacteria was identified using biochemical and PCR methods. Salmonella enterica serovar (4.4% and 4.3%), Campylobacter (1.9% and 1.1%), E. coli (79.4% and 89.4%), and enterococci (88.1% and 95.7%) was detected in offal and muscle meats, respectively. Chicken liver (9.7%) was most frequently contaminated with Salmonella enterica serovar, followed by ground chicken (6.9%) and chicken wings (4.2%). No Salmonella enterica serovar was detected in beef liver, beef tripe, and ground beef. The prevalence of Campylobacter was 6.9%, 2.3%, and 1.4% in beef liver, ground beef, and ground chicken, respectively. None of the meats were positive for E. coli O157:H7. Resistance of isolates was significantly (p < 0.05) highest in erythromycin (98.3%; 99.1%), followed by tetracycline (94%; 98.3%), vancomycin (88.8%; 92.2%) as compared to chloramphenicol (43.1%; 53.9%), amoxicillin/clavulanic (43.5%; 45.7%), and ciprofloxacin (45.7%; 55.7%) in offal and muscle meats, respectively. Imipenem showed the lowest resistance (0%; 0.9%). A total of 41 multidrug-resistant patterns were displayed. Edible offal could be a source of antibiotic-resistant bacteria.
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Affiliation(s)
- Siqin Liu
- Department of Agriculture and Environmental Sciences, Tennessee State University, 3500 John A. Merritt Boulevard, Nashville, TN 37209, USA; (S.L.); (S.N.N.); (B.P.); (A.I.M.); (M.N.)
| | - Agnes Kilonzo-Nthenge
- Department of Human Sciences, Tennessee State University, 3500 John A. Merritt Boulevard, Nashville, TN 37209, USA
- Correspondence: ; Tel.: +1-(615)-963-5437; Fax: +1-(615)-963-5557
| | - Samuel N. Nahashon
- Department of Agriculture and Environmental Sciences, Tennessee State University, 3500 John A. Merritt Boulevard, Nashville, TN 37209, USA; (S.L.); (S.N.N.); (B.P.); (A.I.M.); (M.N.)
| | - Bharat Pokharel
- Department of Agriculture and Environmental Sciences, Tennessee State University, 3500 John A. Merritt Boulevard, Nashville, TN 37209, USA; (S.L.); (S.N.N.); (B.P.); (A.I.M.); (M.N.)
| | - Abdullah Ibn Mafiz
- Department of Agriculture and Environmental Sciences, Tennessee State University, 3500 John A. Merritt Boulevard, Nashville, TN 37209, USA; (S.L.); (S.N.N.); (B.P.); (A.I.M.); (M.N.)
| | - Maureen Nzomo
- Department of Agriculture and Environmental Sciences, Tennessee State University, 3500 John A. Merritt Boulevard, Nashville, TN 37209, USA; (S.L.); (S.N.N.); (B.P.); (A.I.M.); (M.N.)
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Divsalar G, Kaboosi H, Khoshbakht R, Shirzad-Aski H, Ghadikolaii FP. Antimicrobial resistances, and molecular typing of Campylobacter jejuni isolates, separated from food-producing animals and diarrhea patients in Iran. Comp Immunol Microbiol Infect Dis 2019; 65:194-200. [PMID: 31300113 DOI: 10.1016/j.cimid.2019.06.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Revised: 05/26/2019] [Accepted: 06/03/2019] [Indexed: 02/06/2023]
Abstract
The aims of this study were to regain new epidemiology information about frequency, drug resistance rates, and typing of Campylobacter jejuni (C. jejuni) isolates, obtained from some poultry and cattle farms, slaughterhouses, and people with diarrhea. In this regard, Minimal Inhibitory Concentration (MIC) of several antibiotics and the associated antibiotic resistance genes, including tetO, tetA, cmeB, and blaOXA-61 were evaluated. The isolates were also typed, using the Fla-RFLP method. Generally, between 233 food animal samples, 80 (34.33%) C. jejuni were isolated. Moreover, 20 out of 74 (27%) human specimens suspected to infectious diarrhea were C. jejuni positive. High frequencies of resistance to tetracycline (100%), ciprofloxacin (95%), and nalidixic acid (86%), and low frequencies of resistance to florfenicol (0%), erythromycin (5%), and gentamicin (8%) were observed. Furthermore, in the tetracycline-resistant isolates, the existences of tetO, tetA, and cmeB were 86%, 23%, and 48%, respectively. There was a significant correlation between the cluster types obtained from Fla-RFLP method and antibiotic resistance pattern. The results suggested that the genomic link between Campylobacter spp. should be always evaluated in each country to provide an insight about the Campylobacter spp., spread in the region, in order to implement the health-controlling programs efficiently.
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Affiliation(s)
- Golnaz Divsalar
- Department of Microbiology, Ayattollah Amoli Branch, Islamic Azad University, Amol, Iran
| | - Hami Kaboosi
- Department of Microbiology, Ayattollah Amoli Branch, Islamic Azad University, Amol, Iran
| | - Rahem Khoshbakht
- Department of Pathobiology, Faculty of Veterinary Medicine, Amol University of Special Modern Technologies, Amol, Iran.
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Devi A, Mahony TJ, Wilkinson JM, Vanniasinkam T. Antimicrobial susceptibility of clinical isolates of Campylobacter jejuni from New South Wales, Australia. J Glob Antimicrob Resist 2018; 16:76-80. [PMID: 30267925 DOI: 10.1016/j.jgar.2018.09.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Revised: 09/17/2018] [Accepted: 09/19/2018] [Indexed: 01/22/2023] Open
Abstract
OBJECTIVES The aim of this study was to investigate the prevalence of resistance to commonly used antimicrobials in Campylobacter jejuni isolates from clinical faecal samples in New South Wales (NSW), Australia. METHODS A total of 117 C. jejuni isolates from human faecal samples from regional and metropolitan NSW were examined for antimicrobial resistance. RESULTS Of the 117 isolates tested, 15.4% were resistant to ampicillin, 5.1% to tetracycline and 13.7% to ciprofloxacin. Most of the isolates were susceptible to erythromycin, except for three that showed intermediate resistance. Furthermore, 9.4% of isolates were resistant (or intermediate-resistant) to more than one antimicrobial agent. Isolates that were resistant to ampicillin and tetracycline harboured the blaOXA-61 and tet(O) genes, respectively. A mutation in the gyrA gene, resulting in the T86I substitution, was identified in the majority of ciprofloxacin-resistant isolates. CONCLUSION The data obtained in the current study demonstrate that the majority of C. jejuni isolates evaluated were susceptible to one or more antimicrobials tested. Apart from three isolates that demonstrated intermediate resistance, all of the isolates were susceptible to erythromycin, which is the drug of choice for treating Campylobacter infections.
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Affiliation(s)
- Aruna Devi
- School of Biomedical Sciences, Charles Sturt University, Wagga Wagga, New South Wales, Australia
| | - Timothy J Mahony
- Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, Brisbane, Queensland, Australia
| | - Jenny M Wilkinson
- School of Biomedical Sciences, Charles Sturt University, Wagga Wagga, New South Wales, Australia
| | - Thiru Vanniasinkam
- School of Biomedical Sciences, Charles Sturt University, Wagga Wagga, New South Wales, Australia.
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Carev M, Tonkić M, Boban N. A six-year epidemiological surveillance study in Split-Dalmatia County, Croatia: urban versus rural differences in human campylobacteriosis incidence. INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2018; 28:407-418. [PMID: 29869522 DOI: 10.1080/09603123.2018.1481497] [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: 10/19/2017] [Accepted: 05/23/2018] [Indexed: 06/08/2023]
Abstract
Data from population-based laboratory surveillance were used to examine the epidemiological pattern of campylobacteriosis in a sentinel site, Split-Dalmatia County (SDC),Croatia, from 2007 to 2012, and to evaluate the association between disease incidence and demographic, geographical, climatic, agricultural, and microbiological factors. A total of 2658 laboratory-confirmed Campylobacter infections were recorded. Overall mean incidence was 96/100,000, ranging from 61/100,000 in rural to 131/100,000 in urban areas; rates were highest in the age group 0-4 years. Overall mean and age- and sex-specific incidences were significantly higher in urban versus rural areas (p < 0.01). The number of infections peaked in early summer, and was correlated with higher average monthly temperature (r = 0.58) and lower humidity (r = - 0.27), but not with precipitation. Incidence was not associated with agricultural activities. A distinct campylobacteriosis pattern with consistently higher urban versus rural incidence was observed, which may help formulate further preventive measures.
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Affiliation(s)
- Merica Carev
- a Department of Clinical Microbiology , Public Health Institute of Split-Dalmatia County , Split , Croatia
- b Department of Microbiology , University of Split School of Medicine , Split , Croatia
| | - Marija Tonkić
- b Department of Microbiology , University of Split School of Medicine , Split , Croatia
- c Department of Clinical Microbiology , University Hospital Centre Split , Split , Crotia
| | - Nataša Boban
- d Department of Clinical Epidemiology , University Hospital Centre Split , Split , Croatia
- e Department of Public Health , University of Split School of Medicine , Split , Croatia
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Šupraha P, Balen Topić M. Increase of resistance to fluoroquinolone and retained susceptibility to macrolides of Campylobacter isolates in Croatia. Infect Dis (Lond) 2017; 49:781-784. [DOI: 10.1080/23744235.2017.1325513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Affiliation(s)
- Paula Šupraha
- School of Medicine, University of Zagreb, Department for Gastrointestinal Infections, University Hospital for Infectious Diseases ‘Dr. Fran Mihaljević’, Zagreb, Croatia
| | - Mirjana Balen Topić
- School of Medicine, University of Zagreb, Department for Gastrointestinal Infections, University Hospital for Infectious Diseases ‘Dr. Fran Mihaljević’, Zagreb, Croatia
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