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Kamatham S, Seeralan M, Sekar U, Kuppusamy S. Development and Validation of UFLC-MS/MS Analytical Method for the Simultaneous Quantification of Antibiotic Residues in Surface Water, Groundwater, and Pharmaceutical Waste Water Samples from South India. ACS OMEGA 2024; 9:12801-12809. [PMID: 38524455 PMCID: PMC10956121 DOI: 10.1021/acsomega.3c08566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 02/14/2024] [Accepted: 02/21/2024] [Indexed: 03/26/2024]
Abstract
Antibiotic residues in pharmaceutical wastewater pose a significant environmental concern due to their potential role in fostering antimicrobial resistance. South Indian pharmaceutical companies produce a wide range of antibiotics. As a result, the industries that discharge water may include antibiotic residues, which could be harmful to the environment. In this study, a novel, quick, accurate, and sensitive approach for the simultaneous detection of 11 antibiotics was established, and triple quadrupole mass spectrometry, ultra-fast liquid chromatography-tandem mass spectrometry (UFLC-MS/MS), and selective solid-phase extraction (SPE) were used for validation. Utilizing a mixed mode reversed-phase/cation-exchange cartridge (SPE using Strata X, 33 μm), the single-cartridge extraction procedure was performed and validated. Relative standard deviations for most of the antibiotics ranged from 3.5 to 0.56 with recoveries ranging from 57 to 85%. The samples were injected into the UFLC-MS/MS apparatus at a volume of 10 μL for analysis. The auto sampler cooler temperature was kept at 150 °C, while the column temperature was kept at 40 °C. After validation, the technique was determined to be linear in the range of 2.0-1000.0 ng/mL. The retention period for antibiotics was between 1.2 and 1.5 min. Antibiotics transitions for multiple reaction monitoring| were between 235.1/105.9 and 711.5/467.9 m/z. The method of analysis took 2.5 min to run completely. Antibiotic residues were efficiently analyzed using the established analytical approach in pharmaceutical wastewater (influent and effluent), surface, and groundwater. Eleven antibiotics were found in the water samples during examination with concentrations ranging between 2.313 and 95.744 ng/L. The procedure was shown to be much more environmentally friendly than other contemporary methods based on the green analytical procedure index's evaluation of greenness. Blue applicability grade index tool indicated the developed method's practicality in comparison with that of other reported method.
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Affiliation(s)
- Sravani Kamatham
- Department
of Pharmacology, Sri Ramachandra Faculty of Pharmacy, Sri Ramachandra Institute of Higher Education and Research, (DU), Porur, Chennai 600116, India
| | - Manoharan Seeralan
- Vaccine
Research Centre—Bacterial Vaccine, Centre for Animal Health
Studies, TANUVAS, Madhavaram, Chennai 600051, India
| | - Uma Sekar
- Department
of Microbiology, SRMC & RI, Sri Ramachandra
Institute of Higher Education and Research, (DU), Porur, Chennai 600116, India
| | - Sujatha Kuppusamy
- Department
of Pharmacology, Sri Ramachandra Faculty of Pharmacy, Sri Ramachandra Institute of Higher Education and Research, (DU), Porur, Chennai 600116, India
- Department
of Pharmaceutical Chemistry, Sri Ramachandra Faculty of Pharmacy, Sri Ramachandra Institute of Higher Education and
Research, (DU), Porur, Chennai 600116, India
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Pino-Otín MR, Lorca G, Langa E, Roig F, Terrado EM, Ballestero D. Assessing the Ecotoxicity of Eight Widely Used Antibiotics on River Microbial Communities. Int J Mol Sci 2023; 24:16960. [PMID: 38069283 PMCID: PMC10707202 DOI: 10.3390/ijms242316960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 11/20/2023] [Accepted: 11/24/2023] [Indexed: 12/18/2023] Open
Abstract
Global prevalence of antibiotic residues (ABX) in rivers requires ecotoxicological impact assessment. River microbial communities serve as effective bioindicators for this purpose. We quantified the effects of eight commonly used ABXs on a freshwater river microbial community using Biolog EcoPlates™, enabling the assessment of growth and physiological profile changes. Microbial community characterization involved 16S rRNA gene sequencing. The river community structure was representative of aquatic ecosystems, with the prevalence of Cyanobacteria, Proteobacteria, Actinobacteria, and Bacteroidetes. Our findings reveal that all ABXs at 100 µg/mL reduced microbial community growth and metabolic capacity, particularly for polymers, carbohydrates, carboxylic, and ketonic acids. Chloramphenicol, erythromycin, and gentamicin exhibited the highest toxicity, with chloramphenicol notably impairing the metabolism of all studied metabolite groups. At lower concentrations (1 µg/mL), some ABXs slightly enhanced growth and the capacity to metabolize substrates, such as carbohydrates, carboxylic, and ketonic acids, and amines, except for amoxicillin, which decreased the metabolic capacity across all metabolites. We explored potential correlations between physicochemical parameters and drug mechanisms to understand drug bioavailability. Acute toxicity effects at the river-detected low concentrations (ng/L) are unlikely. However, they may disrupt microbial communities in aquatic ecosystems. The utilization of a wide array of genetically characterized microbial communities, as opposed to a single species, enables a better understanding of the impact of ABXs on complex river ecosystems.
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Affiliation(s)
- María Rosa Pino-Otín
- Faculty of Health Sciences, San Jorge University, 50830 Zaragoza, Spain; (G.L.); (E.L.); (F.R.); (E.M.T.); (D.B.)
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Characterization of Environmental and Cultivable Antibiotic-Resistant Microbial Communities Associated with Wastewater Treatment. Antibiotics (Basel) 2021; 10:antibiotics10040352. [PMID: 33810449 PMCID: PMC8066808 DOI: 10.3390/antibiotics10040352] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 03/19/2021] [Accepted: 03/22/2021] [Indexed: 01/04/2023] Open
Abstract
Bacterial resistance to antibiotics is a growing global concern, threatening human and environmental health, particularly among urban populations. Wastewater treatment plants (WWTPs) are thought to be “hotspots” for antibiotic resistance dissemination. The conditions of WWTPs, in conjunction with the persistence of commonly used antibiotics, may favor the selection and transfer of resistance genes among bacterial populations. WWTPs provide an important ecological niche to examine the spread of antibiotic resistance. We used heterotrophic plate count methods to identify phenotypically resistant cultivable portions of these bacterial communities and characterized the composition of the culturable subset of these populations. Resistant taxa were more abundant in raw sewage and wastewater before the biological aeration treatment stage. While some antibiotic-resistant bacteria (ARB) were detectable downstream of treated wastewater release, these organisms are not enriched relative to effluent-free upstream water, indicating efficient removal during treatment. Combined culture-dependent and -independent analyses revealed a stark difference in community composition between culturable fractions and the environmental source material, irrespective of culturing conditions. Higher proportions of the environmental populations were recovered than predicted by the widely accepted 1% culturability paradigm. These results represent baseline abundance and compositional data for ARB communities for reference in future studies addressing the dissemination of antibiotic resistance associated with urban wastewater treatment ecosystems.
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Eduardo-Correia B, Morales-Filloy H, Abad JP. Bacteria From the Multi-Contaminated Tinto River Estuary (SW, Spain) Show High Multi-Resistance to Antibiotics and Point to Paenibacillus spp. as Antibiotic-Resistance-Dissemination Players. Front Microbiol 2020; 10:3071. [PMID: 31998281 PMCID: PMC6965355 DOI: 10.3389/fmicb.2019.03071] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 12/19/2019] [Indexed: 12/31/2022] Open
Abstract
Bacterial resistance to antibiotics is an ever-increasing phenomenon that, besides clinical settings, is generally assumed to be prevalent in environmental soils and waters. The analysis of bacteria resistant to each one of 11 antibiotics in waters and sediments of the Huelva’s estuary, a multi-contaminated environment, showed high levels of bacteria resistant mainly to Tm, among others. To further gain knowledge on the fate of multi-drug resistance (MDR) in environmental bacteria, 579 ampicillin-resistant bacteria were isolated tested for resistance to 10 antibiotics. 92.7% of the isolates were resistant to four or more antibiotic classes, indicating a high level of multi-resistance. 143 resistance profiles were found. The isolates with different MDR profiles and/or colony morphologies were phylogenetically ascribed based on 16S rDNA to phyla Proteobacteria, Firmicutes, Actinobacteria, and Bacteroidetes, including 48 genera. Putative intrinsic resistance was detected in different phylogenetic groups including genera Altererythrobacter, Bacillus, Brevundimonas, Erythrobacter, Mesonia, Ochrobactrum, and Ponticaulis. Correlation of the presence of pairs of the non-intrinsic-resistances in phylogenetic groups based on the kappa index (κ) highlighted the co-habitation of some of the tested pairs at different phylogenetic levels. Maximum correlation (κ = 1.000) was found for pairs CzR/TcR in Betaproteobacteria, and CcR/TcR and EmR/SmR in Sphingobacteriia at the class level, while at the genus level, was found for CcR/TcR and NxR/TmR in Mesonia, CzR/TmR and EmR/KmR in Paenibacillus, and CcR/EmR and RpR/TcR in Pseudomonas. These results could suggest the existence of intra-class and intra-genus-transmissible genetic elements containing determinants for both members of each pair. Network analysis based on κ values higher than 0.4 indicated the sharing of paired resistances among several genera, many of them centered on the Paenibacillus node and raising the hypothesis of inter-genera transmission of resistances interconnected through members of this genus. This is the first time that a possible hotspot of resistance interchange in a particular environment may have been detected, opening up the possibility that one, or a few, bacterial members of the community could be important promoters of antibiotic resistance (AR) dissemination in this environment’s bacterial population. Further studies using the available isolates will likely give insights of the possible mechanisms and genetic elements involved.
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Affiliation(s)
- Benedito Eduardo-Correia
- Department of Molecular Biology, Faculty of Sciences-Biology Building, Universidad Autónoma de Madrid, Madrid, Spain
| | - Héctor Morales-Filloy
- Department of Molecular Biology, Faculty of Sciences-Biology Building, Universidad Autónoma de Madrid, Madrid, Spain
| | - José P Abad
- Department of Molecular Biology, Faculty of Sciences-Biology Building, Universidad Autónoma de Madrid, Madrid, Spain
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Ji J, Merino S, Tomás JM, Roher N. Nanoliposomes encapsulating immunostimulants modulate the innate immune system and elicit protection in zebrafish larvae. FISH & SHELLFISH IMMUNOLOGY 2019; 92:421-429. [PMID: 31195115 DOI: 10.1016/j.fsi.2019.06.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 05/20/2019] [Accepted: 06/10/2019] [Indexed: 06/09/2023]
Abstract
Here we present immunostimulant-loaded nanoliposomes (NLc) as a strategy to protect zebrafish larvae against bacterial infection. The NLc encapsulate crude lipopolysaccharide (LPS) from E. coli and polyinosinic:polycytidylic acid (Poly I:C), a synthetic analogue of viral dsRNA. Fluorescently-labeled NLc were ingested by zebrafish larvae 4 days post fertilization, when administrated by bath immersion, and accumulated in the intestine. RT-qPCR analysis showed the expression of innate immune related genes (tnfα, il1β, nos2a, irf1a and ptgs2a) was significantly upregulated at 48 h post NLc treatment. A zebrafish larvae infection model for Aeromonas hydrophila was set up by bath immersion, achieving bacterial-dose-dependent significant differences in survival at day 5 post infection in both injured and non-injured larvae. Using this model, NLc protected non-injured zebrafish larvae against an A. hydrophila lethal infection. In contrast, neither the empty nanoliposomes nor the mixture of immunostimulants could protect larvae against lethal challenges. Our results demonstrate that nanoliposomes could be further developed as an efficient carrier, widening the scope for delivery of other immunostimulants in aquaculture.
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Affiliation(s)
- Jie Ji
- Institute of Biotechnology and Biomedicine (IBB), Universitat Autònoma de Barcelona, 08193, Barcelona, Spain; Department of Cell Biology, Animal Physiology and Immunology, Universitat Autònoma de Barcelona, 08193, Barcelona, Spain
| | - Susana Merino
- Department of Genetics, Microbiology and Statistics, Faculty of Biology, University of Barcelona, 08028, Barcelona, Spain
| | - Juan M Tomás
- Department of Genetics, Microbiology and Statistics, Faculty of Biology, University of Barcelona, 08028, Barcelona, Spain
| | - Nerea Roher
- Institute of Biotechnology and Biomedicine (IBB), Universitat Autònoma de Barcelona, 08193, Barcelona, Spain; Department of Cell Biology, Animal Physiology and Immunology, Universitat Autònoma de Barcelona, 08193, Barcelona, Spain.
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Detection of Antibiotics in Drinking Water Treatment Plants in Baghdad City, Iraq. ADVANCES IN PUBLIC HEALTH 2019. [DOI: 10.1155/2019/7851354] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Persistence of antibiotics in the aquatic environment has raised concerns regarding their potential influence on potable water quality and human health. This study analyzes the presence of antibiotics in potable water from two treatment plants in Baghdad City. The collected samples were separated using a solid-phase extraction method with hydrophilic-lipophilic balance (HLB) cartridge before being analyzed. The detected antibiotics in the raw and finished drinking water were analyzed and assessed using high-performance liquid chromatography (HPLC), with fluorometric detector and UV detector. The results confirmed that different antibiotics including fluoroquinolones andB-lactams were detected in the raw and finished water. The most frequently detected antibiotics were ciprofloxacin with highest concentration of 1.270 μg L−1in the raw water of Al-Wihda plant, whereas the highest concentration of levofloxacin was 0.177 μg L−1, while amoxicillin was not detected in this plant. In contrast, ciprofloxacin was found in both raw water and finished water of Al-Rasheed plant and recorded highest concentration of 1.344 and 1.312 μg L−1, respectively. Moreover, the residual amount of levofloxacin in the raw water was up to 0.414 μg L−1, whereas amoxicillin was shown to be the most detectable drug in the raw water of Al-Rasheed plant, with a concentration of 1.50 μg L−1. The results of this study revealed the existence of antibiotic drugs in raw and finished water and should be included in the Iraqi standard for drinking water quality assessment.
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7
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Rosi EJ, Bechtold HA, Snow D, Rojas M, Reisinger AJ, Kelly JJ. Urban stream microbial communities show resistance to pharmaceutical exposure. Ecosphere 2018. [DOI: 10.1002/ecs2.2041] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Affiliation(s)
- E. J. Rosi
- Cary Institute of Ecosystem Studies Millbrook New York 12545 USA
| | | | - D. Snow
- Nebraska Water Center/School of Natural Resources University of Nebraska‐Lincoln Lincoln Nebraska 68583 USA
| | - M. Rojas
- Department of Biology Loyola University Chicago Chicago Illinois 60660 USA
| | - A. J. Reisinger
- Cary Institute of Ecosystem Studies Millbrook New York 12545 USA
- Soil and Water Sciences Department University of Florida Gainesville Florida 32611 USA
| | - J. J. Kelly
- Department of Biology Loyola University Chicago Chicago Illinois 60660 USA
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8
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Gutleben J, Chaib De Mares M, van Elsas JD, Smidt H, Overmann J, Sipkema D. The multi-omics promise in context: from sequence to microbial isolate. Crit Rev Microbiol 2017; 44:212-229. [PMID: 28562180 DOI: 10.1080/1040841x.2017.1332003] [Citation(s) in RCA: 98] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
The numbers and diversity of microbes in ecosystems within and around us is unmatched, yet most of these microorganisms remain recalcitrant to in vitro cultivation. Various high-throughput molecular techniques, collectively termed multi-omics, provide insights into the genomic structure and metabolic potential as well as activity of complex microbial communities. Nonetheless, pure or defined cultures are needed to (1) decipher microbial physiology and thus test multi-omics-based ecological hypotheses, (2) curate and improve database annotations and (3) realize novel applications in biotechnology. Cultivation thus provides context. In turn, we here argue that multi-omics information awaits integration into the development of novel cultivation strategies. This can build the foundation for a new era of omics information-guided microbial cultivation technology and reduce the inherent trial-and-error search space. This review discusses how information that can be extracted from multi-omics data can be applied for the cultivation of hitherto uncultured microorganisms. Furthermore, we summarize groundbreaking studies that successfully translated information derived from multi-omics into specific media formulations, screening techniques and selective enrichments in order to obtain novel targeted microbial isolates. By integrating these examples, we conclude with a proposed workflow to facilitate future omics-aided cultivation strategies that are inspired by the microbial complexity of the environment.
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Affiliation(s)
- Johanna Gutleben
- a Laboratory of Microbiology , Wageningen University & Research , Wageningen , The Netherlands
| | - Maryam Chaib De Mares
- b Department of Microbial Ecology, Groningen Institute for Evolutionary Life Sciences (GELIFES) , Rijksuniversiteit Groningen , Groningen , The Netherlands
| | - Jan Dirk van Elsas
- b Department of Microbial Ecology, Groningen Institute for Evolutionary Life Sciences (GELIFES) , Rijksuniversiteit Groningen , Groningen , The Netherlands
| | - Hauke Smidt
- a Laboratory of Microbiology , Wageningen University & Research , Wageningen , The Netherlands
| | - Jörg Overmann
- c Leibniz-Institut DSMZ-Deutsche Sammlung von Mikroorganismen , Braunschweig , Germany
| | - Detmer Sipkema
- a Laboratory of Microbiology , Wageningen University & Research , Wageningen , The Netherlands
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Narciso-da-Rocha C, Manaia CM. Multidrug resistance phenotypes are widespread over different bacterial taxonomic groups thriving in surface water. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 563-564:1-9. [PMID: 27131885 DOI: 10.1016/j.scitotenv.2016.04.062] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Revised: 04/08/2016] [Accepted: 04/08/2016] [Indexed: 06/05/2023]
Abstract
The environment is the original and most ancient source of the antibiotic resistance determinants that threat the human health nowadays. In the environment, water is a privileged habitat and mode of dissemination of bacteria of different origins. Freshwater bodies that cross urban areas are supposed to hold a complex mixture of both human/animal origin and strictly environmental bacteria. In this study, we were interested in unveiling the bacterial diversity in urban river transects and, simultaneously, investigate the occurrence of antibiotic resistant bacteria, in particular the multidrug resistant (MDR). With this aim, water and sediments of two rivers were sampled from an urban transect and the bacterial diversity was assessed based on 16S rRNA gene-based community analysis and, simultaneously, total heterotrophic bacteria were isolated in the presence and in the absence of antibiotics. The three predominant phyla were Proteobacteria, Bacteroidetes and Actinobacteria, in water, or Acidobacteria, in sediments. MDR bacteria were observed to belong to the predominant phyla observed in water, mostly of the classes Gamma- and Betaproteobacteria (Proteobacteria) and Sphingobacteriia and Flavobacteriia (Bacteroidetes) and belonged to genera of ubiquitous (Pseudomonas, Acinetobacter, Stenotrophomonas) or mainly environmental (Chitinophaga, Chryseobacterium) bacteria. The observation that MDR bacteria are widespread in the environment and over distinct phylogenetic lineages has two relevant implications: i) the potential of environmental bacteria as source or facilitators for antibiotic resistance acquisition; ii) the need to complement culture-independent methods with culture-based approaches in order to identify major sources of MDR profiles.
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Affiliation(s)
- Carlos Narciso-da-Rocha
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina, Laboratório Associado, Escola Superior de Biotecnologia, Rua Arquiteto Lobão Vital, Apartado 2511, 4202-401, Porto, Portugal
| | - Célia M Manaia
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina, Laboratório Associado, Escola Superior de Biotecnologia, Rua Arquiteto Lobão Vital, Apartado 2511, 4202-401, Porto, Portugal.
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Liu Z, Zhang Z, Yan H, Li J, Shi L. Isolation and molecular characterization of multidrug-resistant Enterobacteriaceae strains from pork and environmental samples in Xiamen, China. J Food Prot 2015; 78:78-88. [PMID: 25581181 DOI: 10.4315/0362-028x.jfp-14-172] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
This study was conducted to investigate the prevalence and molecular characterization of multidrug-resistant (MDR) Enterobacteriaceae isolated from swine meat and the breeding environment. A total of 102 MDR Enterobacteriaceae strains belonging to five genera were obtained from 210 samples collected from a large-scale swine farm from March 2012 to June 2013 in Xiamen, People's Republic of China. Among these MDR isolates, Escherichia coli strains were found most frequently in both meat and environmental samples, followed by Citrobacter spp., Klebsiella spp., and Shigella spp. The neighbor-joining phylogenetic tree indicated that 70.3 % of Escherichia and 50 % of Citrobacter isolates from meat samples shared 100 % homology with relevant isolates from environmental samples. Resistance was most frequently observed to sulfonamide, trimethoprim, aminoglycoside, chloramphenicol, β-lactam, and tetracycline. Close correlation was noted between antibiotic resistance phenotype and the genes responsible for resistance to sulfonamide (sulI), trimethoprim (dhfrI), aminoglycoside (aadA, aac(3)-I, aphA-1, and aac(3)-IV), chloramphenicol (catI and cmlA), β-lactam (blaSHV, blaOXA, and blaTEM), florfenicol (floR), and tetracycline (tet(A) and tet(B)), which were widely distributed with prevalences of 72.5, 6.9, 62.7, 14.7, 78.4, 11.8, 25.5, 42.2, 12.7, 14.7, 39.2, 87.2, 68.6, and 34.3 % , respectively. Class 1 integrons carrying aadA22, dfrA17-aadA5, or dfrA12-aadA2 cassette arrays were commonly found in isolates from all samples. The gene cassette aac(6')-Ib-cr-arr-3-dfrA27-aadA16 was first found in an Enterobacter amnigenus isolate. Conjugation experiments revealed the plasmid-mediated transfer of class 1 integrons. Our results indicate that swine meat and the farming environment can be sources of antibiotic-resistant bacteria, which could be potentially transmitted to humans via the meat products industry chain.
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Affiliation(s)
- Zongbao Liu
- College of Light Industry and Food Technology, South China University of Technology, Guangzhou 510640, People's Republic of China; State Key Laboratory of Food Safety Technology for Meat Products and Synergetic Innovation Center of Food Safety and Nutrition, Xiamen Yinxiang Group Co., Ltd., Xiamen 361100, People's Republic of China
| | - Zhigang Zhang
- State Key Laboratory of Food Safety Technology for Meat Products and Synergetic Innovation Center of Food Safety and Nutrition, Xiamen Yinxiang Group Co., Ltd., Xiamen 361100, People's Republic of China
| | - He Yan
- College of Light Industry and Food Technology, South China University of Technology, Guangzhou 510640, People's Republic of China
| | - Jianrong Li
- Food Safety Key Lab of Liaoning Province, Bohai University, Jinzhou 121013, People's Republic of China.
| | - Lei Shi
- College of Light Industry and Food Technology, South China University of Technology, Guangzhou 510640, People's Republic of China; State Key Laboratory of Food Safety Technology for Meat Products and Synergetic Innovation Center of Food Safety and Nutrition, Xiamen Yinxiang Group Co., Ltd., Xiamen 361100, People's Republic of China.
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Garcia-Armisen T, Anzil A, Cornelis P, Chevreuil M, Servais P. Identification of antimicrobial resistant bacteria in rivers: insights into the cultivation bias. WATER RESEARCH 2013; 47:4938-4947. [PMID: 23863386 DOI: 10.1016/j.watres.2013.05.036] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2013] [Revised: 04/16/2013] [Accepted: 05/20/2013] [Indexed: 06/02/2023]
Abstract
In the present study, the antimicrobial resistant (AR) bacteria were quantified and identified in different river samples using in parallel a culture-based approach and a culture-independent one. The objective was to evaluate the importance of the cultivation bias when studying antimicrobial resistance among environmental bacteria. Three different river samples covering a gradient of anthropic influence were tested and three different antimicrobial compounds were used as selective agents: amoxicillin, tetracycline and sulfamethoxazole. From a quantitative point of view, our results highlight the importance of the culture media used, as for the same sample and the same selective agent significant differences were observed in the counts of culturable AR bacteria depending on the culture media used. The identification of AR bacteria through culture or culture-independent methods put on evidence AR bacterial communities that differ dramatically: γ-proteobacteria and more specifically Aeromonadaceae dominated among the isolates while β-proteobacteria (Comamonadaceae), dominated among the sequences obtained without culture. Altogether these results highlight the necessity to develop a methodological consensus preferably without culture, to approach this important topic in the coming years.
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Affiliation(s)
- Tamara Garcia-Armisen
- Ecologie des Systèmes Aquatiques, Université Libre de Bruxelles, Campus de la Plaine, CP 221, Boulevard du Triomphe, 1050 Brussels, Belgium.
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A qualitative survey of five antibiotics in a water treatment plant in central plateau of Iran. JOURNAL OF ENVIRONMENTAL AND PUBLIC HEALTH 2013; 2013:351528. [PMID: 23690801 PMCID: PMC3649666 DOI: 10.1155/2013/351528] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2012] [Revised: 12/16/2012] [Accepted: 02/01/2013] [Indexed: 12/02/2022]
Abstract
Introduction. This study aimed to survey a total of five common human and veterinary antibiotics based on SPE-LC-MS-MS technology in a water treatment plant at central plateau of Iran. Also two sampling techniques, passive and grab samplings, were compared in the detection of selected antibiotics. Materials and Methods. In January to March 2012, grab and passive samples were taken from the influent and effluent of a water treatment plant. The samples were prepared using solid-phase extraction (SPE), and extracts were analyzed by liquid chromatography tandem mass spectrometry (LC-MS-MS). Results. The results showed that enrofloxacin, oxytetracycline, and tylosin were not detected in none of the samples. However, ampicillin was detected in the grab and passive samples taken from the influent (source water) of the plant, and ciprofloxacin was detected in passive samples taken from the influent and effluent (finished water) of the plant. Conclusion. The results imply that passive sampling is a better approach than grab sampling for the investigation of antibiotics in aquatic environments. The presence of ampicillin and ciprofloxacin in source water and finished water of the water treatment plant may lead to potential emergence of resistant bacteria that should be considered in future studies.
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Aeromonas and Pseudomonas species carriers of ampC FOX genes in aquatic environments. Appl Environ Microbiol 2012. [PMID: 23204414 DOI: 10.1128/aem.03171-12] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Resistance to beta-lactam antibiotics is evolutionarily ancient, and resistance to new drugs develops and quickly spreads. Most studies on beta-lactam resistance concentrate on pathogens in medical and veterinary settings. We show that ampC FOX genes can be found in natural environmental isolates.
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