101
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Brower JL. The Threat and Response to Infectious Diseases (Revised). MICROBIAL ECOLOGY 2018; 76:19-36. [PMID: 27480226 PMCID: PMC7080028 DOI: 10.1007/s00248-016-0806-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Accepted: 06/20/2016] [Indexed: 06/06/2023]
Abstract
The threat from microorganisms is complex, and the approaches for reducing the challenges the world is facing are also multifaceted, but a combination approach including several simple steps can make a difference and reduce morbidity and mortality and the economic cost of fighting infectious diseases. This paper discusses the continually evolving infectious disease landscape, contributing factors in the rise of the threat, reasons for optimism, and the policies, technologies, actions, and institutions that might be harnessed to further reduce the dangers introduced by pathogens. It builds upon and updates the work of other authors that have recognized the dangers of emerging and re-emerging pathogens and have explored and documented potential solutions.
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102
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Komal S, Kazmi SAJ, Khan JA, Gilani MM. Antimicrobial activity of Prunella Vulgaris extracts against multi-drug resistant Escherichia Coli from patients of urinary tract infection. Pak J Med Sci 2018; 34:616-620. [PMID: 30034426 PMCID: PMC6041530 DOI: 10.12669/pjms.343.14982] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Background and Objective: Escherichia Coli is the most common etiological agent of UTI and accounts for more then 100, 0000 hospitalization annually. The objective of this study was to investigate the antimicrobial activity of aqueous and ethanolic extracts of Prunella vulgaris against E. coli from urinary tract infection patients. Methods: Urine samples of forty four suspected patients from Tertiary Care Hospital Faisalabad were used in this study. Ethanolic and aqueous extracts of Prunella vulgris (PV), a medicinal plant was evaluated for its ability to inhibit the growth of 38 resistant isolates of Escherichia coli strains and compared to Ciprofloxacin, Ofloxacin, Cefixime and Tobramycin by well diffusion method. Minimum inhibitory concentration was measured by using broth micro dilution method. Results: PV showed antibacterial activity against Escherichia coli strains, however Tobramycin at 10 microgram (10μg) inhibited the resistant E. coli to a greater extent as compared to other antibiotics and was resistant to twice less number of strains, about 82% of E. coli isolates have MDR pattern. Conclusion: Ciprofloxacin has more efficacy than PV and no synergistic effect with extracts of PV. Cefixime is least efficacious against resistant E. coli, however it has synergistic effect with extracts of PV.
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Affiliation(s)
- Sumra Komal
- Sumra Komal, Pharm-D, M. Phil (Pharmacology). Institute of Pharmacy, Physiology and Pharmacology, University of Agriculture, Faisalabad, Pakistan
| | - Syed Asif Jahanzeb Kazmi
- Syed Asif Jahanzeb Kazmi, MBBS, M.Phil, Ph.D Scholar (Pharmacology). Associate Professor, CMH Institute of Medical Sciences, Department of Pharmacology and Therapeutics, Bahawalpur, Pakistan
| | - Junaid Ali Khan
- Junaid Ali Khan, DVM, MSc, M.S., Ph. D (Endocrinology). Institute of Pharmacy, Physiology and Pharmacology, University of Agriculture, Faisalabad, Pakistan
| | - Mashkoor Mohsin Gilani
- Mashkoor Mohsin Gilani, DVM, Ph.D (Molecular Microbiology). Assistant Professor, Institute of Microbiology, University of Agriculture Faisalabad, Pakistan
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103
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Lofrano G, Libralato G, Casaburi A, Siciliano A, Iannece P, Guida M, Pucci L, Dentice EF, Carotenuto M. Municipal wastewater spiramycin removal by conventional treatments and heterogeneous photocatalysis. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 624:461-469. [PMID: 29268218 DOI: 10.1016/j.scitotenv.2017.12.145] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Revised: 12/13/2017] [Accepted: 12/13/2017] [Indexed: 06/07/2023]
Abstract
This study assessed the effects and removal options of the macrolide spiramycin, currently used for both in human and veterinary medicine- with a special focus on advanced oxidation processes based on heterogeneous TiO2_assisted photocatalysis. Spiramycin real concentrations were investigated on a seasonal basis in a municipal wastewater treatment plant (up to 35μgL-1), while its removal kinetics were studied considering both aqueous solutions and real wastewater samples, including by-products toxicity assessment. High variability of spiramycin removal by activated sludge treatments (from 9% (wintertime) to >99.9% (summertime)) was observed on a seasonal basis. Preliminary results showed that a total spiramycin removal (>99.9%) is achieved with 0.1gL-1 of TiO2 in aqueous solution after 80min. Integrated toxicity showed residual slight acute effects in the photocatalytic treated solutions, independently from the amount of TiO2 used, and could be linked to the presence of intermediate compounds. Photolysis of wastewater samples collected after activated sludge treatment during summer season (SPY 5μgL-1) allowed a full SPY removal after 80min. When photocatalysis with 0.1gL-1 of TiO2 was carried out in wastewater samples collected in winter season (SPY 30μgL-1) after AS treatment, SPY removal was up to 91% after 80min.
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Affiliation(s)
- G Lofrano
- Department of Chemical and Biology, University of Salerno, via Giovanni Paolo II 132, 84084 Fisciano, SA, Italy
| | - G Libralato
- Department of Biology, University of Naples Federico II, via Cinthia ed. 7, 80126 Naples, Italy.
| | - A Casaburi
- Department of Chemical and Biology, University of Salerno, via Giovanni Paolo II 132, 84084 Fisciano, SA, Italy
| | - A Siciliano
- Department of Biology, University of Naples Federico II, via Cinthia ed. 7, 80126 Naples, Italy
| | - P Iannece
- Department of Chemical and Biology, University of Salerno, via Giovanni Paolo II 132, 84084 Fisciano, SA, Italy
| | - M Guida
- Department of Biology, University of Naples Federico II, via Cinthia ed. 7, 80126 Naples, Italy
| | - L Pucci
- Consorzio Nocera Ambiente, Via Santa Maria delle Grazie 562, 84015 Nocera Superiore, Italy
| | - E F Dentice
- Dipartimento di Matematica e Fisica, Università degli Studi della Campania "Luigi Vanvitelli", Viale Lincoln 5, 81100 Caserta, Italy
| | - M Carotenuto
- Department of Chemical and Biology, University of Salerno, via Giovanni Paolo II 132, 84084 Fisciano, SA, Italy
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104
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Kılıç G, Osman B, Tüzmen N. Application of affinity microspheres for effective SPE cleanup before the determination of sulfamerazine by HPLC. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 91:55-63. [PMID: 30033286 DOI: 10.1016/j.msec.2018.04.058] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Accepted: 04/19/2018] [Indexed: 12/14/2022]
Abstract
This paper describes the application of poly (ethylene glycol dimethacrylate-N-methacryloyl-L-tryptophane methyl ester) [p(EGDMA-MATrp)] microspheres as an affinity sorbent for the SPE (solid phase extraction) cleanup of sulfamerazine (SMR) from food samples of animal origin before high performance liquid chromatography (HPLC) analysis. The microspheres were prepared by suspension polymerization of ethylene glycol dimethacrylate (EGDMA) and N-methacryloyl-L-tryptophane methyl ester (MATrp) as a crosslinker and a monomer, respectively. Various parameters affecting the SPE cleanup efficiency of the p(EGDMA-MATrp) microspheres (contact time, pH, initial SMR concentration, ionic strength etc.) were optimized. Under the optimized conditions, maximum adsorption capacity was found to be 8.55 ± 0.44 mg/g sorbent at pH 5.0. 90% of the adsorbed SMR was desorbed by using ACN:MeOH (5:5) mixture as a desorption agent. Applicability of the microspheres for the SPE cleanup of SMR residues in the food samples such as egg and milk with HPLC was also determined. It was demonstrated that the prepared p(EGDMA-MATrp) microspheres could be repeatedly applied for SPE cleanup of sulfamerazine before chromatographic analysis. Also, the recoveries of SMR in milk and egg samples were reasonably satisfactory and in the range of 71 to 90%.
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Affiliation(s)
- Gözde Kılıç
- Graduate School of Natural and Applied Sciences, Dokuz Eylül Univ., İzmir, Turkey
| | - Bilgen Osman
- Chemistry Department, Uludag University, Bursa, Turkey
| | - Nalan Tüzmen
- Chemistry Department, Dokuz Eylül University, İzmir, Turkey.
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105
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Chen JJ, Wang LJ, Xu GJ, Wang X, Zhao RS. Highly Stable Zr(IV)-Based Porphyrinic Metal-Organic Frameworks as an Adsorbent for the Effective Removal of Gatifloxacin from Aqueous Solution. Molecules 2018; 23:molecules23040937. [PMID: 29669999 PMCID: PMC6017858 DOI: 10.3390/molecules23040937] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Revised: 04/08/2018] [Accepted: 04/13/2018] [Indexed: 12/27/2022] Open
Abstract
Water stable Zr-metal–organic framework nanoparticles (PCN-224 NPs, PCN refers to porous coordination network) have been solvothermally synthesized. PCN-224 NPs show spherical shape with smooth surface and particle size of approximately 200 nm. PCN-224 NPs can be stable in acid and aqueous solutions, as confirmed by powder X-ray diffraction. Gatifloxacin (GTF) adsorption measurements showed that PCN-224 NPs exhibit a high adsorption capacity of 876 mg·g−1. Meanwhile, the adsorption factors, adsorption characteristics, and mechanisms of GTF were investigated in batch adsorption experiments.
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Affiliation(s)
- Jing-Jing Chen
- Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China.
| | - Li-Juan Wang
- Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China.
| | - Gui-Ju Xu
- Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China.
| | - Xia Wang
- Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China.
| | - Ru-Song Zhao
- Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China.
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106
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Mirzaei R, Yunesian M, Nasseri S, Gholami M, Jalilzadeh E, Shoeibi S, Mesdaghinia A. Occurrence and fate of most prescribed antibiotics in different water environments of Tehran, Iran. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 619-620:446-459. [PMID: 29156265 DOI: 10.1016/j.scitotenv.2017.07.272] [Citation(s) in RCA: 113] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Revised: 07/28/2017] [Accepted: 07/31/2017] [Indexed: 05/25/2023]
Abstract
The presence of most prescribed antibiotic compounds from four therapeutic classes (β-lactam, cephalosporins, macrolides, fluoroquinolones) were studied at two full-scale WWTPs, two rivers, thirteen groundwater resources, and five water treatment plants in Tehran. Analytical methodology was based on high performance liquid chromatography/tandem mass spectrometry after solid-phase extraction. Samples were collected at 33 sample locations on three sampling periods over four months from June to August 2016. None of the target antibiotics were detected in groundwater resources and water treatment plants, while seven out of nine target antibiotics were analyzed in two studied river waters as well as the influent and effluent of wastewater treatment plants at concentrations ranging from <LOQ to 926.32ng/L. Ciprofloxacin predominated in all analyzed influent (552.6-796.2ng/L) and effluent (127-248.7ng/L) samples of WWTP A, whereas cephalosporins including cephalexin (523.3-977.7ng/L) and cefixime (278.65 to 422.1ng/L) were the most abundant detected antibiotics in the influent and effluent of WWTP B. Aqueous phase removal efficiencies were assessed and ranged from 339.83% to 100% for the seven detected antibiotics. "Negative removals" were observed for erythromycin, azithromycin, and cefixime due to the deconjugation of conjugated metabolites via biological transformation in the studied WWTPs. From a statistical point of view, significant differences (p<0.05) were observed in the concentrations of cefixime, cephalexin, azithromycin, and erythromycin in the effluent of both studied WWTPs. Ciprofloxacin and cephalexin were the most abundant detected antibiotics in the two studied river waters. Statistical results revealed that there were significant differences in the concentrations of ciprofloxacin, azithromycin, and erythromycin (p<0.05) in Firozabad ditch (receiving WWTP effluent) and Kan River (non-receiving WWTP effluent) which demonstrated that WWTPs discharges could be an important source of antibiotics being released in water bodies.
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Affiliation(s)
- Roya Mirzaei
- Center for Water Quality Research (CWQR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran
| | - Masud Yunesian
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran; Center for Air Pollution Research (CAPR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran
| | - Simin Nasseri
- Center for Water Quality Research (CWQR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran; Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Mitra Gholami
- Research Center for Environmental Health Technology, Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - Esfandiyar Jalilzadeh
- Water and Wastewater Company, Department of Water and Wastewater Quality Control Laboratory, Tehran, Iran
| | - Shahram Shoeibi
- Food and Drug Laboratory Research Center, Food and Drug Organization, Ministry of Health & Medical Education, Tehran, Iran; Food and Drug Reference Control Laboratories Center, Food and Drug Organization, Ministry of Health & Medical Education, Tehran, Iran
| | - Alireza Mesdaghinia
- Center for Water Quality Research (CWQR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran; Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
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107
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Multidrug-Resistant Enterobacteriaceae in Lebanese Hospital Wastewater: Implication in the One Health Concept. Microb Drug Resist 2018. [DOI: 10.1089/mdr.2017.0090] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
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108
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Modeling the Emergence of Antibiotic Resistance in the Environment: an Analytical Solution for the Minimum Selection Concentration. Antimicrob Agents Chemother 2018; 62:AAC.01686-17. [PMID: 29263062 DOI: 10.1128/aac.01686-17] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Accepted: 12/07/2017] [Indexed: 11/20/2022] Open
Abstract
Environmental antibiotic risk management requires an understanding of how subinhibitory antibiotic concentrations contribute to the spread of resistance. We develop a simple model of competition between sensitive and resistant bacterial strains to predict the minimum selection concentration (MSC), the lowest level of antibiotic at which resistant bacteria are selected. We present an analytical solution for the MSC based on the routinely measured MIC, the selection coefficient (sc) that expresses fitness differences between strains, the intrinsic net growth rate, and the shape of the bacterial growth dose-response curve with antibiotic or metal exposure (the Hill coefficient [κ]). We calibrated the model by optimizing the Hill coefficient to fit previously reported experimental growth rate difference data. The model fit varied among nine compound-taxon combinations examined but predicted the experimentally observed MSC/MIC ratio well (R2 ≥ 0.95). The shape of the antibiotic response curve varied among compounds (0.7 ≤ κ ≤ 10.5), with the steepest curve being found for the aminoglycosides streptomycin and kanamycin. The model was sensitive to this antibiotic response curve shape and to the sc, indicating the importance of fitness differences between strains for determining the MSC. The MSC can be >1 order of magnitude lower than the MIC, typically by the factor scκ This study provides an initial quantitative depiction and a framework for a research agenda to examine the growing evidence of selection for resistant bacterial communities at low environmental antibiotic concentrations.
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109
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Bueno I, Williams-Nguyen J, Hwang H, Sargeant JM, Nault AJ, Singer RS. Systematic Review: Impact of point sources on antibiotic-resistant bacteria in the natural environment. Zoonoses Public Health 2018; 65:e162-e184. [PMID: 29205899 DOI: 10.1111/zph.12426] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Indexed: 11/02/2023]
Abstract
Point sources such as wastewater treatment plants and agricultural facilities may have a role in the dissemination of antibiotic-resistant bacteria (ARB) and antibiotic resistance genes (ARG). To analyse the evidence for increases in ARB in the natural environment associated with these point sources of ARB and ARG, we conducted a systematic review. We evaluated 5,247 records retrieved through database searches, including both studies that ascertained ARG and ARB outcomes. All studies were subjected to a screening process to assess relevance to the question and methodology to address our review question. A risk of bias assessment was conducted upon the final pool of studies included in the review. This article summarizes the evidence only for those studies with ARB outcomes (n = 47). Thirty-five studies were at high (n = 11) or at unclear (n = 24) risk of bias in the estimation of source effects due to lack of information and/or failure to control for confounders. Statistical analysis was used in ten studies, of which one assessed the effect of multiple sources using modelling approaches; none reported effect measures. Most studies reported higher ARB prevalence or concentration downstream/near the source. However, this evidence was primarily descriptive and it could not be concluded that there is a clear impact of point sources on increases in ARB in the environment. To quantify increases in ARB in the environment due to specific point sources, there is a need for studies that stress study design, control of biases and analytical tools to provide effect measure estimates.
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Affiliation(s)
- I Bueno
- Department of Veterinary Population Medicine, University of Minnesota, St. Paul, MN, USA
| | - J Williams-Nguyen
- Department of Veterinary and Biomedical Sciences, University of Minnesota, St. Paul, MN, USA
- Department of Epidemiology, University of Washington, Seattle, WA, USA
| | - H Hwang
- Division of Environmental Health Sciences, School of Public Health, University of Minnesota, Minneapolis, MN, USA
| | - J M Sargeant
- Department of Population Medicine and Centre for Public Health and Zoonoses, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
| | - A J Nault
- Veterinary Medical Library, University of Minnesota, St. Paul, MN, USA
| | - R S Singer
- Department of Veterinary and Biomedical Sciences, University of Minnesota, St. Paul, MN, USA
- Instituto de Medicina Preventiva Veterinaria, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile
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110
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Mohammadi Nodeh MK, Soltani S, Shahabuddin S, Rashidi Nodeh H, Sereshti H. Equilibrium, Kinetic and Thermodynamic Study of Magnetic Polyaniline/Graphene Oxide Based Nanocomposites for Ciprofloxacin Removal from Water. J Inorg Organomet Polym Mater 2018. [DOI: 10.1007/s10904-018-0782-2] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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111
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Forootanfar H, Arjmand S, Behzadi M, Faramarzi MA. Laccase-Mediated Treatment of Pharmaceutical Wastes. RESEARCH ADVANCEMENTS IN PHARMACEUTICAL, NUTRITIONAL, AND INDUSTRIAL ENZYMOLOGY 2018. [DOI: 10.4018/978-1-5225-5237-6.ch010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
Laccases are versatile multi-copper enzymes belonging to the superfamily of oxidase enzymes, which have been known since the nineteenth century. Recent discoveries have refined investigators' views of the potential of laccase as a magic tool for remarkable biotechnological purposes. A literature review of the capabilities of laccases, their assorted substrates, and their molecular mechanism of action now indicates the emergence of a new direction for laccase application as part of an arsenal in the fight against the contamination of water supplies by a number of frequently prescribed medications. This chapter provides a critical review of the literature and reveals the pivotal role of laccases in the elimination and detoxification of pharmaceutical contaminants in aquatic environments and wastewaters.
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112
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Tahrani L, Van Loco J, Anthonissen R, Verschaeve L, Ben Mansour H, Reyns T. Identification and risk assessment of human and veterinary antibiotics in the wastewater treatment plants and the adjacent sea in Tunisia. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2017; 76:3000-3021. [PMID: 29210687 DOI: 10.2166/wst.2017.465] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In the following study, we came up with and validated a prompt, sensitive and precise method for the simultaneous determination of 56 antimicrobial drugs (tetracyclines, sulfonamides, β-lactams, macrolides and quinolones) using the ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS). This method was implemented with success to determine antibiotics in samples collected from four wastewater treatment plants and five coasts in Tunisia. Results showed the presence of high concentrations of antibiotics that ranged from 0.1 to 646 ng mL-1, which can induce many negative impacts on health and the environment. For this reason, we have opted to evaluate toxicity of wastewater samples using a battery of biotests. In fact, genotoxicity was assessed using three tests: Vitotox, comet and micronucleus assays. The input and output of wastewater treatment plants induced a strongly genotoxic effect on the Salmonella typhimurium TA104 prokaryotic Vitotox assay. This result was confirmed using the comet and the micronucleus assays performed on the human liver hepatocellular carcinoma cells. The genotoxic power of the tested wastewater treatment plants' samples could be attributed to the presence of the higher quantities of antibiotics that are detected in these samples and to the antibiotic and organic compound cocktails.
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Affiliation(s)
- Leyla Tahrani
- Research Unit of Analysis and Process Applied to the Environment-APAE UR17ES32 Higher Institute of Applied Sciences and Technology, University of Monastir, Mahdia 5100, Tunisia E-mail: ; Laboratory of Chemical Residues and Contaminants, Direction of Food Medicines and Consumer Safety, Scientific Institute of Public Health, Juliette Wytsmanstraat 14, Brussels 1050, Belgium; Laboratory of Toxicology, Scientific Institute of Public Health, Juliette Wytsmanstraat 14, Brussels 1050, Belgium
| | - Joris Van Loco
- Laboratory of Chemical Residues and Contaminants, Direction of Food Medicines and Consumer Safety, Scientific Institute of Public Health, Juliette Wytsmanstraat 14, Brussels 1050, Belgium
| | - Roel Anthonissen
- Laboratory of Toxicology, Scientific Institute of Public Health, Juliette Wytsmanstraat 14, Brussels 1050, Belgium
| | - Luc Verschaeve
- Laboratory of Toxicology, Scientific Institute of Public Health, Juliette Wytsmanstraat 14, Brussels 1050, Belgium; Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium
| | - Hedi Ben Mansour
- Research Unit of Analysis and Process Applied to the Environment-APAE UR17ES32 Higher Institute of Applied Sciences and Technology, University of Monastir, Mahdia 5100, Tunisia E-mail:
| | - Tim Reyns
- Laboratory of Chemical Residues and Contaminants, Direction of Food Medicines and Consumer Safety, Scientific Institute of Public Health, Juliette Wytsmanstraat 14, Brussels 1050, Belgium
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113
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Tran NH, Gin KYH. Occurrence and removal of pharmaceuticals, hormones, personal care products, and endocrine disrupters in a full-scale water reclamation plant. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 599-600:1503-1516. [PMID: 28531959 DOI: 10.1016/j.scitotenv.2017.05.097] [Citation(s) in RCA: 103] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Revised: 05/11/2017] [Accepted: 05/11/2017] [Indexed: 05/12/2023]
Abstract
This study provided the first comprehensive data on the occurrence and removal of twenty-five target emerging contaminants (ECs) in a full-scale water reclamation plant (WRP) in the Southeast Asian region. Nineteen out of the twenty-five ECs were ubiquitously detected in raw influent samples. Concentrations of the detected ECs in raw influent samples ranged substantially from 44.3 to 124,966ng/L, depending upon the compound and sampling date. The elimination of ECs in full-scale conventional activated sludge (CAS) and membrane bioreactor (MBR) systems at a local WRP was evaluated and compared. Several ECs, such as acetaminophen, atenolol, fenoprofen, indomethacin, ibuprofen, and oxybenzone, exhibited excellent removal efficiencies (>90%) in biological wastewater treatment processes, while some of the investigated compounds (carbamazepine, crotamiton, diclofenac, and iopamidol) appeared to be persistent in the both CAS and MBR systems. Field-based monitoring results showed that MBR outperformed CAS in the elimination of most target ECs. The relationship between molecular characteristics of ECs (i.e. physicochemical properties and structural features) and their removal efficiencies during biological wastewater treatment was also elucidated. Excellent removal efficiencies (>90%) were often noted for ECs with the sole presence of electron donating groups (i.e. phenolic [OH], amine [NH2], methoxy [OCH3], phenoxy [OC6H5], or alkyl groups). Conversely, ECs with the absence of electron donating groups or the predominance of strong electron withdrawing groups (e.g. halogenated, carbonyl, carboxyl, and sulfonamide) tended to show poor removal efficiencies (<30%) in biological wastewater treatment processes.
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Affiliation(s)
- Ngoc Han Tran
- NUS Environmental Research Institute, National University of Singapore, T-Lab Building, #02-01, 5A Engineering Drive 1, Singapore 117411, Singapore.
| | - Karina Yew-Hoong Gin
- NUS Environmental Research Institute, National University of Singapore, T-Lab Building, #02-01, 5A Engineering Drive 1, Singapore 117411, Singapore; Department of Civil and Environmental Engineering, Faculty of Engineering, National University of Singapore, 1 Engineering Drive 2, Singapore 117576, Singapore.
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114
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Palacios OA, Zavala-Díaz de la Serna FJ, Ballinas-Casarrubias MDL, Espino-Valdés MS, Nevárez-Moorillón GV. Microbiological Impact of the Use of Reclaimed Wastewater in Recreational Parks. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2017; 14:E1009. [PMID: 28869549 PMCID: PMC5615546 DOI: 10.3390/ijerph14091009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Revised: 08/26/2017] [Accepted: 09/01/2017] [Indexed: 02/08/2023]
Abstract
Reclaimed wastewater for irrigation is an opportunity for recovery of this natural resource. In this study, microbial risk from the use of treated wastewater for irrigation of recreational parks in the city of Chihuahua, evaluating the effect of distribution distance, season, and presence of storage tanks, was analyzed. Escherichia coli, Salmonella, and multidrug-resistant bacteria were recovered from samples of reclaimed water and soils at recreational parks in Chihuahua by the membrane filtration method, using selected agars for microbial growth. Samples were taken at three different seasons. No correlation in the presence of microbial indicators and multidrug-resistant bacteria (p > 0.05) was found between the distance from the wastewater treatment plant to the point of use. Presence of storage tanks in parks showed a significant effect (p < 0.05) with a higher level of E. coli. The highest count in wastewater occurred in summer. We isolated 392 multidrug-resistant bacteria from water and soil; cluster analysis showed that the microorganisms at each location were of different origins. Irrigation with reclaimed wastewater did not have a negative effect on the presence of microbial indicators of the quality of soils in the parks. However, the prevalence of multidrug-resistant bacteria still represents a potential risk factor for human health.
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Affiliation(s)
- Oskar A Palacios
- Circuito Universitario S/N Campus Universitario II, Universidad Autónoma de Chihuahua, Chihuahua, Chih 31125, Mexico.
- Laboratorio de Microbiología Ambiental, Centro de Investigaciones Biológicas del Noroeste (CIBNOR), Calle IPN 195, La Paz, B.C.S. 20396, Mexico.
| | | | | | - María S Espino-Valdés
- Circuito Universitario S/N Campus Universitario II, Universidad Autónoma de Chihuahua, Chihuahua, Chih 31125, Mexico.
| | - Guadalupe V Nevárez-Moorillón
- Circuito Universitario S/N Campus Universitario II, Universidad Autónoma de Chihuahua, Chihuahua, Chih 31125, Mexico.
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Kulkarni P, Olson ND, Raspanti GA, Rosenberg Goldstein RE, Gibbs SG, Sapkota A, Sapkota AR. Antibiotic Concentrations Decrease during Wastewater Treatment but Persist at Low Levels in Reclaimed Water. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2017. [PMID: 28635638 PMCID: PMC5486354 DOI: 10.3390/ijerph14060668] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Reclaimed water has emerged as a potential irrigation solution to freshwater shortages. However, limited data exist on the persistence of antibiotics in reclaimed water used for irrigation. Therefore, we examined the fate of nine commonly-used antibiotics (ampicillin, azithromycin, ciprofloxacin, linezolid, oxacillin, oxolinic acid, penicillin G, pipemidic acid, and tetracycline) in differentially treated wastewater and reclaimed water from two U.S. regions. We collected 72 samples from two Mid-Atlantic and two Midwest treatment plants, as well as one Mid-Atlantic spray irrigation site. Antibiotic concentrations were measured using liquid-chromatography- tandem mass spectrometry. Data were analyzed using Mann-Whitney-Wilcoxon tests and Kruskal Wallis tests. Overall, antibiotic concentrations in effluent samples were lower than that of influent samples. Mid-Atlantic plants had similar influent but lower effluent antibiotic concentrations compared to Midwest plants. Azithromycin was detected at the highest concentrations (of all antibiotics) in influent and effluent samples from both regions. For most antibiotics, transport from the treatment plant to the irrigation site resulted in no changes in antibiotic concentrations, and UV treatment at the irrigation site had no effect on antibiotic concentrations in reclaimed water. Our findings show that low-level antibiotic concentrations persist in reclaimed water used for irrigation; however, the public health implications are unclear at this time.
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Affiliation(s)
- Prachi Kulkarni
- Maryland Institute for Applied Environmental Health, University of Maryland School of Public Health, 4200 Valley Drive, College Park, MD 20742, USA.
| | - Nathan D Olson
- University of Maryland Institute for Advanced Computer Studies, A.V. Williams Building, College Park, MD 20742, USA.
- National Institute of Standards and Technology, Biosystems and Biomaterials Division, 100 Bureau Drive, Gaithersburg, MD 20899, USA.
| | - Greg A Raspanti
- Maryland Institute for Applied Environmental Health, University of Maryland School of Public Health, 4200 Valley Drive, College Park, MD 20742, USA.
| | - Rachel E Rosenberg Goldstein
- Maryland Institute for Applied Environmental Health, University of Maryland School of Public Health, 4200 Valley Drive, College Park, MD 20742, USA.
| | - Shawn G Gibbs
- School of Public Health-Bloomington, Indiana University Bloomington, 1025 E. 7th St., Bloomington, IN 47405, USA.
| | - Amir Sapkota
- Maryland Institute for Applied Environmental Health, University of Maryland School of Public Health, 4200 Valley Drive, College Park, MD 20742, USA.
| | - Amy R Sapkota
- Maryland Institute for Applied Environmental Health, University of Maryland School of Public Health, 4200 Valley Drive, College Park, MD 20742, USA.
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116
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Kawecki S, Kuleck G, Dorsey JH, Leary C, Lum M. The prevalence of antibiotic-resistant bacteria (ARB) in waters of the Lower Ballona Creek Watershed, Los Angeles County, California. ENVIRONMENTAL MONITORING AND ASSESSMENT 2017; 189:261. [PMID: 28488226 DOI: 10.1007/s10661-017-5964-9] [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: 09/02/2016] [Accepted: 04/21/2017] [Indexed: 06/07/2023]
Abstract
Screening for the prevalence of antibiotic-resistant bacteria (ARB) was done at the Ballona Creek and Wetlands, an urban-impacted wetland system in Los Angeles, California. The goals were (1) to assess the overall prevalence of ARB, and (2) compare differences in ARB abundance and the types of antibiotic resistance (AR) among the following sample types: lagoon water from Del Rey Lagoon, urban runoff from Ballona Creek, and water from the Ballona Wetlands (tidal water flooding in from the adjacent estuary, and ebbing out from the salt marsh). Antibiotic resistance distributions were analyzed using the Kolmogorov-Smirnov test to develop the cumulative frequency of bacteria having resistance of up to eight antibiotics. Distributions from the environmental water samples were compared to unchlorinated secondary effluent from the Hyperion Water Reclamation Plant that was used as comparator samples likely to have an abundance of ARB. As expected, densities of total and ARB were highest in secondary effluent, followed by urban runoff. Samples of water flooding into the wetlands showed similar results to urban runoff; however, a reduction in densities of total and ARB occurred in water ebbing out of the wetlands. During preliminary work to identify ARB species, several bacterial species of relevance to human illness (e.g., Staphylococcus aureus, Enterococcus hirae, Pseudomonas aeruginosa, Aeromonas veronii, Enterobacter cancerogenus, Serratia marcescens, Pseudomonas stutzeri, and Staphylococcus intermedius) were isolated from sampled waters. If wetlands are a sink for ARB, construction and restoration of wetlands can help in the mediation of this human and environmental health concern.
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Affiliation(s)
- Stephanie Kawecki
- Loyola Marymount University, 1 LMU Drive, LSB 101, Los Angeles, CA, 90045, USA.
| | - Gary Kuleck
- University of Detroit Mercy, 4001 W. McNichols Road, Detroit, MI, 48221, USA
| | - John H Dorsey
- Loyola Marymount University, 1 LMU Drive, LSB 101, Los Angeles, CA, 90045, USA
| | - Christopher Leary
- Michael Baker International, 5050 Avenida Encinas, Suite 260, Carlsbad, CA, 92008, USA
| | - Michelle Lum
- Loyola Marymount University, 1 LMU Drive, LSB 101, Los Angeles, CA, 90045, USA
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117
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Riaz L, Mahmood T, Coyne MS, Khalid A, Rashid A, Hayat MT, Gulzar A, Amjad M. Physiological and antioxidant response of wheat (Triticum aestivum) seedlings to fluoroquinolone antibiotics. CHEMOSPHERE 2017; 177:250-257. [PMID: 28292725 DOI: 10.1016/j.chemosphere.2017.03.033] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Revised: 02/23/2017] [Accepted: 03/09/2017] [Indexed: 06/06/2023]
Abstract
Combinations of antibiotics occur in terrestrial environments due to excessive prescription, consumption, and disposal and have adverse effects, including crop toxicity. We examined short-term (20-d) toxicity of the fluoroquinolone antibiotics ciprofloxacin, enrofloxacin, levofloxacin, and their mixture in a germination and a greenhouse sand culture study with wheat. We tested the hypothesis that oxidative stress plays a role in toxicity by examining stress products and antioxidants involved in detoxifying reactive oxygen species (ROS) during stress. Germination was unaffected by any antibiotic concentration or mixture used. The highest antibiotic concentrations, 100 and 300 mg L-1, significantly decreased wheat growth. In 20 days exposure the maximum malondialdehyde production (2.45 μmol g-1 fresh weight), total phenols (16.40 mg g-1 of extract), and total antioxidant capacity (17.74 mg of Vitamin C g-1 of extract) and maximum activities of superoxide dismutase (7.99 units mg-1 protein min-1) and ascorbate peroxidase (0.69 μmol ascorbate mg-1 protein min-1) significantly increased compared to the control. In contrast, catalase (0.45 mmol H2O2 mg-1 protein min-1) and peroxidase (0.0005 units mg-1 protein min-1) activity significantly decreased compared to the control. We conclude that high antibiotic concentrations in the plant growth medium reduced wheat growth by causing oxidative stress. The capacity to respond to oxidative stress was compromised by increasingly higher antibiotic concentrations in some enzyme systems. This stress damaged the physiological structure of the young plants and could reduce crop productivity in the long term. Consequently, fluoroquinolone-contaminated water challenges developing countries with constraints on available water for irrigation.
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Affiliation(s)
- Luqman Riaz
- Department of Environmental Sciences, Pir Mehr Ali Shah Arid Agriculture University, Rawalpindi 46000, Pakistan
| | - Tariq Mahmood
- Department of Environmental Sciences, Pir Mehr Ali Shah Arid Agriculture University, Rawalpindi 46000, Pakistan
| | - Mark S Coyne
- Department of Plant & Soil Sciences University of Kentucky, Lexington, KY 40546-0091, USA.
| | - Azeem Khalid
- Department of Environmental Sciences, Pir Mehr Ali Shah Arid Agriculture University, Rawalpindi 46000, Pakistan
| | - Audil Rashid
- Department of Environmental Sciences, Pir Mehr Ali Shah Arid Agriculture University, Rawalpindi 46000, Pakistan
| | - Malik Tahir Hayat
- Department of Environmental Sciences, COMSATS Institute of Information and Technology, Abbotabad 22010, Pakistan
| | - Asim Gulzar
- Department of Entomology, Pir Mehr Ali Shah Arid Agriculture University, Rawalpindi 46000, Pakistan
| | - Muhammad Amjad
- Department of Environmental Sciences, COMSATS Institute of Information Technology, Vehari 61100, Pakistan
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118
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Pugazhenthiran N, Kaviyarasan K, Sivasankar T, Emeline A, Bahnemann D, Mangalaraja RV, Anandan S. Sonochemical synthesis of porous NiTiO 3 nanorods for photocatalytic degradation of ceftiofur sodium. ULTRASONICS SONOCHEMISTRY 2017; 35:342-350. [PMID: 27773770 DOI: 10.1016/j.ultsonch.2016.10.012] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 09/28/2016] [Accepted: 10/13/2016] [Indexed: 06/06/2023]
Abstract
Porous NiTiO3 nanorods were synthesized through the sonochemical route followed by calcination at various temperature conditions. Surface morphology of the samples was tuned by varying the heat treatment temperature from 100 to 600°C. The synthesized NiTiO3 nanorods were characterized by transmission electron microscopy, X-ray photoelectron spectroscopy, X-ray diffraction, diffused reflectance spectroscopy, photoluminescence spectroscopy and Brunauer-Emmett-Teller (BET) analyses. The characterization studies revealed that the NiTiO3 nanomaterial was tuned to porous and perfectly rod shaped structure during the heat treatment at 600°C. The porous NiTiO3 nanorods showed visible optical response and thus can be utilized in the photocatalytic degradation of ceftiofur sodium (CFS) under direct sunlight. The photoluminescence intensity of the porous NiTiO3 nanorods formed while heating at 600°C was lower than that of the as-synthesized NiTiO3 sample owing to the photogenerated electrons delocalization along the one dimensional nanorods and this delocalization resulted in the reduction of the electron-hole recombination rate. The photocatalytic degradation of ceftiofur sodium (CFS) was carried out using NiTiO3 nanorods under the direct sunlight irradiation and their intermediate products were analysed through HPLC to deduce the possible degradation mechanism. The porous NiTiO3 nanorods exhibited an excellent photocatalytic activity towards the CFS degradation and further, the photocatalytic activity was increased by the addition of peroxomonosulfate owing to the simultaneous generation of both OH and SO4-.
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Affiliation(s)
- N Pugazhenthiran
- Nanomaterials & Solar Energy Conversion Lab, Department of Chemistry, National Institute of Technology, Trichy 620 015, India; Advanced Ceramics and Nanotechnology Laboratory, Department of Materials Engineering, Faculty of Engineering, University of Concepcion, Concepcion 407-0409, Chile
| | - K Kaviyarasan
- Nanomaterials & Solar Energy Conversion Lab, Department of Chemistry, National Institute of Technology, Trichy 620 015, India
| | - T Sivasankar
- Department of Chemical Engineering, National Institute of Technology, Trichy 620 015, India
| | - A Emeline
- Photoactive Nanocomposite Materials, Saint-Petersburg State University, Saint-Petersburg 198504, Russia
| | - D Bahnemann
- Photoactive Nanocomposite Materials, Saint-Petersburg State University, Saint-Petersburg 198504, Russia; Photocatalysis and Nanotechnology, Institut fuer Technische Chemie, Gottfried Wilhelm Leibniz Universitaet Hannover, Germany.
| | - R V Mangalaraja
- Advanced Ceramics and Nanotechnology Laboratory, Department of Materials Engineering, Faculty of Engineering, University of Concepcion, Concepcion 407-0409, Chile.
| | - S Anandan
- Nanomaterials & Solar Energy Conversion Lab, Department of Chemistry, National Institute of Technology, Trichy 620 015, India.
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119
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Guo C, Wang K, Hou S, Wan L, Lv J, Zhang Y, Qu X, Chen S, Xu J. H 2O 2 and/or TiO 2 photocatalysis under UV irradiation for the removal of antibiotic resistant bacteria and their antibiotic resistance genes. JOURNAL OF HAZARDOUS MATERIALS 2017; 323:710-718. [PMID: 27776873 DOI: 10.1016/j.jhazmat.2016.10.041] [Citation(s) in RCA: 78] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Revised: 10/11/2016] [Accepted: 10/18/2016] [Indexed: 06/06/2023]
Abstract
Inactivating antibiotic resistant bacteria (ARB) and removing antibiotic resistance genes (ARGs) are very important to prevent their spread into the environment. Previous efforts have been taken to eliminate ARB and ARGs from aqueous solution and sludges, however, few satisfying results have been obtained. This study investigated whether photocatalysis by TiO2 was able to reduce the two ARGs, mecA and ampC, within the host ARB, methicillin-resistant Staphylococcus aureus (MRSA) and Pseudomonas aeruginosa, respectively. The addition of H2O2 and matrix effect on the removal of ARB and ARGs were also studied. TiO2 thin films showed great effect on both ARB inactivation and ARGs removal. Approximately 4.5-5.0 and 5.5-5.8 log ARB reductions were achieved by TiO2 under 6 and 12mJ/cm2 UV254 fluence dose, respectively. For ARGs, 5.8 log mecA reduction and 4.7 log ampC reduction were achieved under 120mJ/cm2 UV254 fluence dose in the presence of TiO2. Increasing dosage of H2O2 enhanced the removal efficiencies of ARB and ARGs. The results also demonstrated that photocatalysis by TiO2 was capable of removing both intracellular and extracellular forms of ARGs. This study provided a potential alternative method for the removal of ARB and ARGs from aqueous solution.
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Affiliation(s)
- Changsheng Guo
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Kai Wang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; Wuxi SensingNet Industrialization Research Institute, Wuxi 214000, China
| | - Song Hou
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Li Wan
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Jiapei Lv
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Yuan Zhang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Xiaodong Qu
- State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, and Department of Water Environment, China Institute of Water Resources and Hydropower Research, Beijing 100038, China
| | - Shuyi Chen
- Wuxi SensingNet Industrialization Research Institute, Wuxi 214000, China
| | - Jian Xu
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
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120
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Ingram AL, Nickels TM, Maraoulaite DK, White RL. Variable Temperature Infrared Spectroscopy Studies of Aromatic Acid Adsorbate Effects on Montmorillonite Dehydration. APPLIED SPECTROSCOPY 2017; 71:238-249. [PMID: 27457265 DOI: 10.1177/0003702816654155] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Molecular interactions between benzoic, salicylic, and acetylsalicylic acids and water contained within montmorillonite clay interlayer spaces are characterized by using variable temperature diffuse reflection infrared Fourier transform spectroscopy (VT-DRIFTS). By using sample perturbation and difference spectroscopy, infrared (IR) spectral variations resulting from the removal of interlayer water are used to characterize aromatic acid local environment changes. Difference spectra features representing functional group perturbations are correlated with changes in IR absorptions associated with -O-H and -C = O stretching vibrations. Results suggest that adsorbate carboxylic acid functionalities participate in extensive hydrogen bonding and that the strengths of these interactions are diminished when clays are dehydrated. The nature of these interactions and their temperature-dependent properties are found to depend on adsorbate structure and concentration as well as the clay interlayer cation.
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Affiliation(s)
- Audrey L Ingram
- 1 Department of Chemistry and Biochemistry, University of Oklahoma, Norman, Oklahoma, USA
| | - Tara M Nickels
- 2 ExxonMobil Products Technology, Paulsboro, New Jersey, USA
| | - Dalia K Maraoulaite
- 1 Department of Chemistry and Biochemistry, University of Oklahoma, Norman, Oklahoma, USA
| | - Robert L White
- 1 Department of Chemistry and Biochemistry, University of Oklahoma, Norman, Oklahoma, USA
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121
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A new simple electrochemical Moxifloxacin Hydrochloride sensor built on carbon paste modified with silver nanoparticles. Biosens Bioelectron 2017; 87:1065-1070. [DOI: 10.1016/j.bios.2016.07.077] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Accepted: 07/22/2016] [Indexed: 11/23/2022]
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122
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Zanotto C, Bissa M, Illiano E, Mezzanotte V, Marazzi F, Turolla A, Antonelli M, De Giuli Morghen C, Radaelli A. Identification of antibiotic-resistant Escherichia coli isolated from a municipal wastewater treatment plant. CHEMOSPHERE 2016; 164:627-633. [PMID: 27635645 DOI: 10.1016/j.chemosphere.2016.08.040] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 08/05/2016] [Accepted: 08/08/2016] [Indexed: 06/06/2023]
Abstract
The emergence and diffusion of antibiotic-resistant bacteria has been a major public health problem for many years now. In this study, antibiotic-resistance of coliforms and Escherichia coli were investigated after their isolation from samples collected in a municipal wastewater treatment plant in the Milan area (Italy) along different points of the treatment sequence: inflow to biological treatment; outflow from biological treatment following rapid sand filtration; and outflow from peracetic acid disinfection. The presence of E. coli that showed resistance to ampicillin (AMP) and chloramphenicol (CAF), used as representative antibiotics for the efficacy against Gram-positive and Gram-negative bacteria, was evaluated. After determining E. coli survival using increasing AMP and CAF concentrations, specific single-resistant (AMPR or CAFR) and double-resistant (AMPR/CAFR) strains were identified among E. coli colonies, through amplification of the β-lactamase Tem-1 (bla) and acetyl-transferase catA1 (cat) gene sequences. While a limited number of CAFR bacteria was observed, most AMPR colonies showed the specific resistance genes to both antibiotics, which was mainly due to the presence of the bla gene sequence. The peracetic acid, used as disinfection agent, showed to be very effective in reducing bacteria at the negligible levels of less than 10 CFU/100 mL, compatible with those admitted for the irrigation use of treated waters.
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Affiliation(s)
- Carlo Zanotto
- Department of Medical Biotechnologies and Translational Medicine, University of Milan, Via Vanvitelli, 32, 20129, Milan, Italy.
| | - Massimiliano Bissa
- Department of Pharmacological and Biomolecular Sciences, University of Milan, Via Balzaretti, 9, 20133, Milan, Italy.
| | - Elena Illiano
- Department of Pharmacological and Biomolecular Sciences, University of Milan, Via Balzaretti, 9, 20133, Milan, Italy.
| | - Valeria Mezzanotte
- Department of Earth and Environmental Sciences (DISAT), University of Milan Bicocca, Piazza della Scienza 1, 20126, Milan, Italy.
| | - Francesca Marazzi
- Department of Earth and Environmental Sciences (DISAT), University of Milan Bicocca, Piazza della Scienza 1, 20126, Milan, Italy.
| | - Andrea Turolla
- Politecnico di Milano, Department of Civil and Environmental Engineering (DICA), Environmental Section, Piazza Leonardo da Vinci 32, 20133 Milano, Italy.
| | - Manuela Antonelli
- Politecnico di Milano, Department of Civil and Environmental Engineering (DICA), Environmental Section, Piazza Leonardo da Vinci 32, 20133 Milano, Italy.
| | | | - Antonia Radaelli
- Department of Pharmacological and Biomolecular Sciences, University of Milan, Via Balzaretti, 9, 20133, Milan, Italy; Cellular and Molecular Pharmacology Section, National Research Council (CNR) Institute of Neurosciences, University of Milan, Via Vanvitelli, 32, 20129, Milan, Italy.
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123
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Tran NH, Chen H, Reinhard M, Mao F, Gin KYH. Occurrence and removal of multiple classes of antibiotics and antimicrobial agents in biological wastewater treatment processes. WATER RESEARCH 2016; 104:461-472. [PMID: 27585426 DOI: 10.1016/j.watres.2016.08.040] [Citation(s) in RCA: 202] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Revised: 08/10/2016] [Accepted: 08/20/2016] [Indexed: 05/21/2023]
Abstract
Very little information on the occurrence and fate of multiple classes of antimicrobials in the aquatic environment is reported for the Southeast Asian region. This study provides the first and comprehensive data on the occurrence of ten different classes of antimicrobials in wastewater samples for Singapore. Among the investigated antimicrobials, 19 out of 21 target compounds were detected in 100% of the collected raw influent samples. Concentrations of the detected antimicrobials in raw influent varied from 23.8 to 43,740 ng/L. Removal of antimicrobials by conventional activated sludge (CAS) and membrane bioreactor (MBR) systems at a local wastewater treatment plant was evaluated. MBR exhibited better performance over CAS for most target antimicrobials. Beta-lactam, glycopeptide, and fluoroquinolone classes were largely eliminated by biological wastewater treatment processes, whereas trimethoprim and lincosamides appeared to be persistent. Effects of physicochemical properties and chemical structures of target antimicrobials on their removal efficiencies/mechanisms during wastewater treatment process were also discussed.
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Affiliation(s)
- Ngoc Han Tran
- NUS Environmental Research Institute, National University of Singapore, T-Lab Building, #02-01, 5A Engineering Drive 1 117411, Singapore.
| | - Hongjie Chen
- Department of Civil and Environmental Engineering, Faculty of Engineering, National University of Singapore, 1 Engineering Drive 2 117576, Singapore
| | - Martin Reinhard
- Department of Civil and Environmental Engineering, Faculty of Engineering, National University of Singapore, 1 Engineering Drive 2 117576, Singapore; Department of Civil and Environmental Engineering, Stanford University, CA 94305, USA
| | - Feijian Mao
- Department of Civil and Environmental Engineering, Faculty of Engineering, National University of Singapore, 1 Engineering Drive 2 117576, Singapore
| | - Karina Yew-Hoong Gin
- Department of Civil and Environmental Engineering, Faculty of Engineering, National University of Singapore, 1 Engineering Drive 2 117576, Singapore.
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124
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Winkworth-Lawrence C, Lange K. Antibiotic Resistance Genes in Freshwater Biofilms May Reflect Influences from High-Intensity Agriculture. MICROBIAL ECOLOGY 2016; 72:763-772. [PMID: 26932464 DOI: 10.1007/s00248-016-0740-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Accepted: 02/10/2016] [Indexed: 06/05/2023]
Abstract
Antibiotic resistance is a major public health concern with growing evidence of environmental gene reservoirs, especially in freshwater. However, the presence of antibiotic resistance genes in freshwater, in addition to the wide spectrum of land use contaminants like nitrogen and phosphate, that waterways are subjected to is inconclusive. Using molecular analyses, freshwater benthic rock biofilms were screened for genes conferring resistance to antibiotics used in both humans and farmed animals (aacA-aphD to aminoglycosides; mecA to ß-lactams; ermA and ermB to macrolides; tetA, tetB, tetK, and tetM to tetracyclines; vanA and vanB to glycopeptides). We detected widespread low levels of antibiotic resistance genes from 20 waterways across southern New Zealand throughout the year (1.3 % overall detection rate; 480 samples from three rocks per site, 20 sites, eight occasions; July 2010-May 2011). Three of the ten genes, ermB, tetK, and tetM, were detected in 62 of the 4800 individual screens; representatives confirmed using Sanger sequencing. No distinction could be made between human and agricultural land use contamination sources based on gene presence distribution alone. However, land use pressures are suggested by moderate correlations between antibiotic resistance genes and high-intensity farming in winter. The detection of antibiotic resistance genes at several sites not subject to known agricultural pressures suggests human sources of resistance, like waterway contamination resulting from unsatisfactory toilet facilities at recreational sites.
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Affiliation(s)
| | - Katharina Lange
- Department of Zoology, University of Otago, PO Box 56, Dunedin, 9054, New Zealand
- Center of Ecology, Evolution and Biochemistry, Department of Fish Ecology and Evolution, EAWAG Swiss Federal Institute of Aquatic Science and Technology, Seestrasse 79, 6047, Kastanienbaum, Switzerland
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125
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Fonte E, Ferreira P, Guilhermino L. Temperature rise and microplastics interact with the toxicity of the antibiotic cefalexin to juveniles of the common goby (Pomatoschistus microps): Post-exposure predatory behaviour, acetylcholinesterase activity and lipid peroxidation. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2016; 180:173-185. [PMID: 27721112 DOI: 10.1016/j.aquatox.2016.09.015] [Citation(s) in RCA: 132] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Revised: 08/02/2016] [Accepted: 09/23/2016] [Indexed: 05/06/2023]
Abstract
The goal of this study was to investigate the toxicity of cefalexin to Pomatoschistus microps juveniles in relation to the presence of microplastics in the water and temperature rise. After acclimatization, groups of wild juveniles were exposed for 96h to artificial salt water (control), microplastics alone (0.184mg/l), cefalexin alone (1.3-10mg/l) and in mixture with microplastics (cefalexin: 1.3-10mg/l; microplastics: 0.184mg/l) at 20 and 25°C. Effect criteria were mortality, post-exposure predatory performance (PEPP), acetylcholinesterase activity (AChE) and lipid peroxidation levels (LPO). At 20°C, concentrations of cefalexin alone≥5mg/l significantly reduced PEPP (up to 56%; 96h-EC50=8.4mg/l), indicating toxicity of the antibiotic to juveniles after short-term exposure to water concentrations in the low ppm range. At 20°C, fish exposed to microplastics alone did not have significant differences in any of the parameters tested relative to the control group but tended to have an inhibition of the PEPP (23%) and AChE (21%); at 25°C, microplastics alone caused mortality (33%) and PEPP inhibition (28%). Thus, microplastics are toxic to P. microps juveniles. At 20°C, under simultaneous exposure to cefalexin and microplastics, the PEPP was significantly reduced (at cefalexin concentrations≥1.25mg/l). Moreover, at 25°C, the toxicity curves of cefalexin (PEPP based), alone and in mixture with microplastics, were significantly different (p<0.05; 96h-EC50 of 3.8 and 5.2mg/l, respectively), and the integrated data analysis indicated significant interactions between the two substances for all biomarkers. Thus, the presence of microplastics in the water influenced the toxicity of cefalexin. The rise of water temperature (from 20°C to 25°C), increased the microplastics-induced mortality (from 8 to 33%), and the inhibitory effects of cefalexin on the PEPP (up to 70%). Significant differences (p<0.05) between the toxicity curves of cefalexin alone at distinct temperatures were found, with a lower 96h-EC50 at 25°C (3.8mg/l) than at 20°C (8.4mg/l). Moreover, at 25°C, increases of AChE activity (14%) and LPO (72%) in fish exposed to the mixture treatment containing the highest cefalexin concentration were found, and the integrated analysis of data indicated significant interactions between cefalexin and temperature for PEPP, and among all stressors for LPO. Thus, the temperature rise increased the toxicity of microplastics and of cefalexin, alone and in mixture with microplastics, to P. microps juveniles. These findings raise concern on the long-term exposure of wild populations to complex mixtures of pollutants, likely decreasing their fitness, and highlight the need of more research on the combined effects of widely used pharmaceuticals, microplastics and temperature increase on wild species to improve environmental and human risk assessments of chemicals and their safe use under a global warming scenario.
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Affiliation(s)
- Elsa Fonte
- ICBAS - Institute of Biomedical Sciences of Abel Salazar, University of Porto, Department of Populations Study, Laboratory of Ecotoxicology, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal; CIIMAR/CIMAR-LA - Interdisciplinary Centre of Marine and Environmental Research, Research Group of Ecotoxicology, Stress Ecology and Environmental Health, University of Porto, Rua dos Bragas, 289, 4050-123 Porto, Portugal.
| | - Pedro Ferreira
- ICBAS - Institute of Biomedical Sciences of Abel Salazar, University of Porto, Department of Populations Study, Laboratory of Ecotoxicology, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal; CIIMAR/CIMAR-LA - Interdisciplinary Centre of Marine and Environmental Research, Research Group of Ecotoxicology, Stress Ecology and Environmental Health, University of Porto, Rua dos Bragas, 289, 4050-123 Porto, Portugal.
| | - Lúcia Guilhermino
- ICBAS - Institute of Biomedical Sciences of Abel Salazar, University of Porto, Department of Populations Study, Laboratory of Ecotoxicology, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal; CIIMAR/CIMAR-LA - Interdisciplinary Centre of Marine and Environmental Research, Research Group of Ecotoxicology, Stress Ecology and Environmental Health, University of Porto, Rua dos Bragas, 289, 4050-123 Porto, Portugal.
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126
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Norvill ZN, Shilton A, Guieysse B. Emerging contaminant degradation and removal in algal wastewater treatment ponds: Identifying the research gaps. JOURNAL OF HAZARDOUS MATERIALS 2016; 313:291-309. [PMID: 27135171 DOI: 10.1016/j.jhazmat.2016.03.085] [Citation(s) in RCA: 95] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Revised: 02/22/2016] [Accepted: 03/29/2016] [Indexed: 06/05/2023]
Abstract
Whereas the fate of emerging contaminants (ECs) during 'conventional' and 'advanced' wastewater treatment (WWT) has been intensively studied, little research has been conducted on the algal WWT ponds commonly used in provincial areas. The long retention times and large surface areas exposed to light potentially allow more opportunities for EC removal to occur, but experimental evidence is lacking to enable definite predictions about EC fate across different algal WWT systems. This study reviews the mechanisms of EC hydrolysis, sorption, biodegradation, and photodegradation, applying available knowledge to the case of algal WWT. From this basis the review identifies three main areas that need more research due to the unique environmental and ecological conditions occurring in algal WWT ponds: i) the effect of diurnally fluctuating pH and dissolved oxygen upon removal mechanisms; ii) the influence of algae and algal biomass on biodegradation and sorption under relevant conditions; and iii) the significance of EC photodegradation in the presence of dissolved and suspended materials. Because of the high concentration of dissolved organics typically found in algal WWT ponds, most EC photodegradation likely occurs via indirect mechanisms rather than direct photolysis in these systems.
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Affiliation(s)
- Zane N Norvill
- School of Engineering and Advanced Technology, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand
| | - Andy Shilton
- School of Engineering and Advanced Technology, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand
| | - Benoit Guieysse
- School of Engineering and Advanced Technology, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand.
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127
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Azanu D, Mortey C, Darko G, Weisser JJ, Styrishave B, Abaidoo RC. Uptake of antibiotics from irrigation water by plants. CHEMOSPHERE 2016; 157:107-14. [PMID: 27213239 DOI: 10.1016/j.chemosphere.2016.05.035] [Citation(s) in RCA: 82] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Revised: 05/06/2016] [Accepted: 05/11/2016] [Indexed: 06/05/2023]
Abstract
The capacity of carrot (Daucus corota L.) and lettuce (Lactuca sativa L.), two plants that are usually eaten raw, to uptake tetracycline and amoxicillin (two commonly used antibiotics) from irrigated water was investigated in order to assess the indirect human exposure to antibiotics through consumption of uncooked vegetables. Antibiotics in potted plants that had been irrigated with known concentrations of the antibiotics were extracted using accelerated solvent extraction and analyzed on a liquid chromatograph-tandem mass spectrometer. The plants absorbed the antibiotics from water in all tested concentrations of 0.1-15 mg L(-1). Tetracycline was detected in all plant samples, at concentrations ranging from 4.4 to 28.3 ng/g in lettuce and 12.0-36.8 ng g(-1) fresh weight in carrots. Amoxicillin showed absorption with concentrations ranging from 13.7 ng g(-1) to 45.2 ng g(-1) for the plant samples. The mean concentration of amoxicillin (27.1 ng g(-1)) in all the samples was significantly higher (p = 0.04) than that of tetracycline (20.2 ng g(-1)) indicating higher uptake of amoxicillin than tetracycline. This suggests that the low antibiotic concentrations found in plants could be important for causing antibiotics resistance when these levels are consumed.
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Affiliation(s)
- David Azanu
- Department of Chemistry, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana.
| | - Christiana Mortey
- Department of Theoretical and Applied Biology, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Godfred Darko
- Department of Chemistry, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Johan Juhl Weisser
- Toxicology Laboratory, Analytical Biosciences, Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
| | - Bjarne Styrishave
- Toxicology Laboratory, Analytical Biosciences, Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
| | - Robert Clement Abaidoo
- Department of Theoretical and Applied Biology, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
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128
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Chen Q, An X, Li H, Su J, Ma Y, Zhu YG. Long-term field application of sewage sludge increases the abundance of antibiotic resistance genes in soil. ENVIRONMENT INTERNATIONAL 2016; 92-93:1-10. [PMID: 27043971 DOI: 10.1016/j.envint.2016.03.026] [Citation(s) in RCA: 508] [Impact Index Per Article: 63.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2016] [Revised: 03/21/2016] [Accepted: 03/21/2016] [Indexed: 05/18/2023]
Abstract
Sewage sludge and manure are common soil amendments in crop production; however, their impact on the abundance and diversity of the antibiotic resistome in soil remains elusive. In this study, by using high-throughput sequencing and high-throughput quantitative PCR, the patterns of bacterial community and antibiotic resistance genes (ARGs) in a long-term field experiment were investigated to gain insights into these impacts. A total of 130 unique ARGs and 5 mobile genetic elements (MGEs) were detected and the long-term application of sewage sludge and chicken manure significantly increased the abundance and diversity of ARGs in the soil. Genes conferring resistance to beta-lactams, tetracyclines, and multiple drugs were dominant in the samples. Sewage sludge or chicken manure applications caused significant enrichment of 108 unique ARGs and MGEs with a maximum enrichment of up to 3845 folds for mexF. The enrichment of MGEs suggested that the application of sewage sludge or manure may accelerate the dissemination of ARGs in soil through horizontal gene transfer (HGT). Based on the co-occurrence pattern of ARGs subtypes revealed by network analysis, aacC, oprD and mphA-02, were proposed to be potential indicators for quantitative estimation of the co-occurring ARGs subtypes abundance by power functions. The application of sewage sludge and manure resulted in significant increase of bacterial diversity in soil, Proteobacteria, Acidobacteria, Actinobacteria and Chloroflexi were the dominant phyla (>10% in each sample). Five bacterial phyla (Chloroflexi, Planctomycetes, Firmicutes, Gemmatimonadetes and Bacteroidetes) were found to be significantly correlated with the ARGs in soil. Mantel test and variation partitioning analysis (VPA) suggested that bacterial community shifts, rather than MGEs, is the major driver shaping the antibiotic resistome. Additionally, the co-occurrence pattern between ARGs and microbial taxa revealed by network analysis indicated that four bacterial families might be potential hosts of ARGs. These results may shed light on the mechanism underlining the effects of amendments of sewage sludge or manure on the occurrence and dissemination of ARGs in soil.
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Affiliation(s)
- Qinglin Chen
- Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Xinli An
- Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Hu Li
- Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Jianqiang Su
- Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Yibing Ma
- Ministry of Agriculture Key Laboratory of Plant Nutrition and Nutrient Cycling, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Yong-Guan Zhu
- Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; State Key Lab of Urban and Regional Ecology, Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
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129
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He LY, Ying GG, Liu YS, Su HC, Chen J, Liu SS, Zhao JL. Discharge of swine wastes risks water quality and food safety: Antibiotics and antibiotic resistance genes from swine sources to the receiving environments. ENVIRONMENT INTERNATIONAL 2016; 92-93:210-219. [PMID: 27107226 DOI: 10.1016/j.envint.2016.03.023] [Citation(s) in RCA: 213] [Impact Index Per Article: 26.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Revised: 03/18/2016] [Accepted: 03/18/2016] [Indexed: 06/05/2023]
Abstract
Swine feedlots are widely considered as a potential hotspot for promoting the dissemination of antibiotic resistance genes (ARGs) in the environment. ARGs could enter the environment via discharge of animal wastes, thus resulting in contamination of soil, water, and food. We investigated the dissemination and diversification of 22 ARGs conferring resistance to sulfonamides, tetracyclines, chloramphenicols, and macrolides as well as the occurrence of 18 corresponding antibiotics from three swine feedlots to the receiving water, soil environments and vegetables. Most ARGs and antibiotics survived the on-farm waste treatment processes in the three swine farms. Elevated diversity of ARGs was observed in the receiving environments including river water and vegetable field soils when compared with respective controls. The variation of ARGs along the vertical soil profiles of vegetable fields indicated enrichment and migration of ARGs. Detection of various ARGs and antibiotic residues in vegetables fertilized by swine wastes could be of great concern to the general public. This research demonstrated the contribution of swine wastes to the occurrence and development of antibiotic resistance determinants in the receiving environments and potential risks to food safety and human health.
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Affiliation(s)
- Liang-Ying He
- State Key Laboratory of Organic Geochemistry, CAS Centre for Pearl River Delta Environmental Pollution and Control Research, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
| | - Guang-Guo Ying
- State Key Laboratory of Organic Geochemistry, CAS Centre for Pearl River Delta Environmental Pollution and Control Research, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China.
| | - You-Sheng Liu
- State Key Laboratory of Organic Geochemistry, CAS Centre for Pearl River Delta Environmental Pollution and Control Research, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
| | - Hao-Chang Su
- State Key Laboratory of Organic Geochemistry, CAS Centre for Pearl River Delta Environmental Pollution and Control Research, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
| | - Jun Chen
- State Key Laboratory of Organic Geochemistry, CAS Centre for Pearl River Delta Environmental Pollution and Control Research, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
| | - Shuang-Shuang Liu
- State Key Laboratory of Organic Geochemistry, CAS Centre for Pearl River Delta Environmental Pollution and Control Research, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
| | - Jian-Liang Zhao
- State Key Laboratory of Organic Geochemistry, CAS Centre for Pearl River Delta Environmental Pollution and Control Research, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
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130
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Tran NH, Chen H, Do TV, Reinhard M, Ngo HH, He Y, Gin KYH. Simultaneous analysis of multiple classes of antimicrobials in environmental water samples using SPE coupled with UHPLC-ESI-MS/MS and isotope dilution. Talanta 2016; 159:163-173. [PMID: 27474294 DOI: 10.1016/j.talanta.2016.06.006] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Revised: 06/01/2016] [Accepted: 06/02/2016] [Indexed: 02/07/2023]
Abstract
A robust and sensitive analytical method was developed for the simultaneous analysis of 21 target antimicrobials in different environmental water samples. Both single SPE and tandem SPE cartridge systems were investigated to simultaneously extract multiple classes of antimicrobials. Experimental results showed that good extraction efficiencies (84.5-105.6%) were observed for the vast majority of the target analytes when extraction was performed using the tandem SPE cartridge (SB+HR-X) system under an extraction pH of 3.0. HPLC-MS/MS parameters were optimized for simultaneous analysis of all the target analytes in a single injection. Quantification of target antimicrobials in water samples was accomplished using 15 isotopically labeled internal standards (ILISs), which allowed the efficient compensation of the losses of target analytes during sample preparation and correction of matrix effects during UHPLC-MS/MS as well as instrument fluctuations in MS/MS signal intensity. Method quantification limit (MQL) for most target analytes based on SPE was below 5ng/L for surface waters, 10ng/L for treated wastewater effluents, and 15ng/L for raw wastewater. The method was successfully applied to detect and quantify the occurrence of the target analytes in raw influent, treated effluent and surface water samples.
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Affiliation(s)
- Ngoc Han Tran
- NUS Environmental Research Institute, National University of Singapore, 5A Engineering Drive 1, T-Lab Building, Singapore 117411, Singapore.
| | - Hongjie Chen
- Department of Civil and Environmental Engineering, National University of Singapore, 1 Engineering Drive 2, Singapore 117576, Singapore
| | - Thanh Van Do
- Department of Civil and Environmental Engineering, National University of Singapore, 1 Engineering Drive 2, Singapore 117576, Singapore
| | - Martin Reinhard
- Department of Civil and Environmental Engineering, National University of Singapore, 1 Engineering Drive 2, Singapore 117576, Singapore; Department of Civil Environmental Engineering, Stanford University, CA 94305, USA
| | - Huu Hao Ngo
- School of Civil and Environmental Engineering, University of Technology Sydney, PO Box 123, Broadway, NSW 2007, Australia
| | - Yiliang He
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Karina Yew-Hoong Gin
- NUS Environmental Research Institute, National University of Singapore, 5A Engineering Drive 1, T-Lab Building, Singapore 117411, Singapore; Department of Civil and Environmental Engineering, National University of Singapore, 1 Engineering Drive 2, Singapore 117576, Singapore.
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131
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Gheorghe S, Petre J, Lucaciu I, Stoica C, Nita-Lazar M. Risk screening of pharmaceutical compounds in Romanian aquatic environment. ENVIRONMENTAL MONITORING AND ASSESSMENT 2016; 188:379. [PMID: 27234514 DOI: 10.1007/s10661-016-5375-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Accepted: 05/16/2016] [Indexed: 06/05/2023]
Abstract
The aquatic environment is under increased pressure by pharmaceutically active compounds (PhACs) due to anthropogenic activities. In spite of being found at very low concentrations (ng/L to μg/L) in the environment, PhACs represent a real danger to aquatic ecosystems due to their bioaccumulation and long-term effects. In this study, the presence in the aquatic environment of six non-steroidal anti-inflammatory drugs (ibuprofen, diclofenac, acetaminophen, naproxen, indomethacin, and ketoprofen), caffeine, and carbamazepine were monitored. Moreover, their aquatic risk and ecotoxicity by three biological models were evaluated. The monitoring studies performed in Romania showed that all studied PhACs were naturally present at concentrations >0.01 μg/L, pointing out the necessity to perform further toxicity tests for environmental risk assessment. The toxicity studies were carried out on aquatic organisms or bacteria and they indicated, for most of the tested PhACs, an insignificant or low toxicity effects: lethal concentrations (LC50) on fish Cyprinus carpio ranged from 42.60 mg/L to more than 100 mg/L; effective concentrations (EC50) on planktonic crustacean Daphnia magna ranged from 11.02 mg/L to more than 100 mg/L; inhibitory concentrations (IC50)/microbial toxic concentrations (MTC) on Vibrio fischeri and other bacterial strains ranged from 7.02 mg/L to more than 100 mg/L. The PhAC aquatic risk was assessed by using the ratio between measured environmental concentration (MEC) and predicted no effect concentration (PNEC) calculated for each type of organism. The average of quotient risks (RQs) revealed that the presence of these compounds in Romania's aquatic environment induced a lower or moderate aquatic risk.
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Affiliation(s)
- Stefania Gheorghe
- Control Pollution Department, National Research and Development Institute for Industrial Ecology - ECOIND, 71-73 Drumul Podu Dambovitei, 060652, Bucharest - 6, Romania.
| | - Jana Petre
- Control Pollution Department, National Research and Development Institute for Industrial Ecology - ECOIND, 71-73 Drumul Podu Dambovitei, 060652, Bucharest - 6, Romania
| | - Irina Lucaciu
- Control Pollution Department, National Research and Development Institute for Industrial Ecology - ECOIND, 71-73 Drumul Podu Dambovitei, 060652, Bucharest - 6, Romania
| | - Catalina Stoica
- Control Pollution Department, National Research and Development Institute for Industrial Ecology - ECOIND, 71-73 Drumul Podu Dambovitei, 060652, Bucharest - 6, Romania
| | - Mihai Nita-Lazar
- Control Pollution Department, National Research and Development Institute for Industrial Ecology - ECOIND, 71-73 Drumul Podu Dambovitei, 060652, Bucharest - 6, Romania
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132
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Gómez P, Lozano C, Benito D, Estepa V, Tenorio C, Zarazaga M, Torres C. Characterization of staphylococci in urban wastewater treatment plants in Spain, with detection of methicillin resistant Staphylococcus aureus ST398. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2016; 212:71-76. [PMID: 26840519 DOI: 10.1016/j.envpol.2016.01.038] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Revised: 12/15/2015] [Accepted: 01/14/2016] [Indexed: 06/05/2023]
Abstract
The objective of this study was to determine the prevalence of Staphylococcus in urban wastewater treatment plants (UWTP) of La Rioja (Spain), and to characterize de obtained isolates. 16 wastewater samples (8 influent, 8 effluent) of six UWTPs were seeded on mannitol-salt-agar and oxacillin-resistance-screening-agar-base for staphylococci and methicillin-resistant Staphylococcus aureus recovery. Antimicrobial susceptibility profile was determined for 16 antibiotics and the presence of 35 antimicrobial resistance genes and 14 virulence genes by PCR. S. aureus was typed by spa, agr, and multilocus-sequence-typing, and the presence of immune-evasion-genes cluster was analyzed. Staphylococcus spp. were detected in 13 of 16 tested wastewater samples (81%), although the number of CFU/mL decreased after treatment. 40 staphylococci were recovered (1-5/sample), and 8 of them were identified as S. aureus being typed as (number of strains): spa-t011/agr-II/ST398 (1), spa-t002/agr-II/ST5 (2), spa-t3262/agr-II/ST5 (1), spa-t605/agr-II/ST126 (3), and spa-t878/agr-III/ST2849 (1). S. aureus ST398 strain was methicillin-resistant and showed a multidrug resistance phenotype. Virulence genes tst, etd, sea, sec, seg, sei, sem, sen, seo, and seu, were detected among S. aureus and only ST5 strains showed genes of immune evasion cluster. Thirty-two coagulase-negative Staphylococcus of 12 different species were recovered (number of strains): Staphylococcus equorum (7), Staphylococcus vitulinus (4), Staphylococcus lentus (4), Staphylococcus sciuri (4), Staphylococcus fleurettii (2), Staphylococcus haemolyticus (2), Staphylococcus hominis (2), Staphylococcus saprophyticus (2), Staphylococcus succinus (2), Staphylococcus capitis (1), Staphylococcus cohnii (1), and Staphylococcus epidermidis (1). Five presented a multidrug resistance phenotype. The following resistance and virulence genes were found: mecA, lnu(A), vga(A), tet(K), erm(C), msr(A)/(B), mph(C), tst, and sem. We found that Staphylococcus spp. are normal contaminants of urban wastewater, including different lineages of S. aureus and a high diversity of coagulase-negative species. The presence of multiple resistance and virulence genes, including mecA, in staphylococci of wastewater can be a concern for the public health.
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Affiliation(s)
- Paula Gómez
- Department of Food and Agriculture, University of La Rioja, Logroño, Spain
| | - Carmen Lozano
- Department of Food and Agriculture, University of La Rioja, Logroño, Spain
| | - Daniel Benito
- Department of Food and Agriculture, University of La Rioja, Logroño, Spain
| | - Vanesa Estepa
- Department of Food and Agriculture, University of La Rioja, Logroño, Spain
| | - Carmen Tenorio
- Department of Food and Agriculture, University of La Rioja, Logroño, Spain
| | - Myriam Zarazaga
- Department of Food and Agriculture, University of La Rioja, Logroño, Spain
| | - Carmen Torres
- Department of Food and Agriculture, University of La Rioja, Logroño, Spain.
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133
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Solid-phase extraction in combination with dispersive liquid-liquid microextraction and ultra-high performance liquid chromatography-tandem mass spectrometry analysis: the ultra-trace determination of 10 antibiotics in water samples. Anal Bioanal Chem 2016; 408:1701-13. [DOI: 10.1007/s00216-015-9284-z] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Revised: 12/08/2015] [Accepted: 12/18/2015] [Indexed: 12/21/2022]
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134
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Couperus NP, Pagsuyoin SA, Bragg LM, Servos MR. Occurrence, distribution, and sources of antimicrobials in a mixed-use watershed. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 541:1581-1591. [PMID: 26512947 DOI: 10.1016/j.scitotenv.2015.09.086] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2015] [Revised: 09/15/2015] [Accepted: 09/16/2015] [Indexed: 06/05/2023]
Abstract
The release into the environment of antimicrobial compounds from both human and agricultural sources is a growing global concern. The Grand River watershed, the largest mixed-use watershed in southern Ontario, receives runoff from intensive animal production as well as municipal wastewater effluents from a rapidly increasing human population. A survey of surface waters and wastewater effluents was conducted across the watershed to assess the occurrence and distribution of several antimicrobials (i.e., trimethoprim, sulfamethoxazole, sulfamethazine, lincomycin, and monensin) and chemical indicators (i.e., ammonia, nitrate, ibuprofen, venlafaxine, atrazine) and to characterize exposure levels. The human antimicrobials trimethoprim and sulfamethoxazole were detected in the urban areas of the main channel at mean concentrations of 8 ± 7 ng/L and 31 ± 24 ng/L, respectively, but at much lower concentrations in the agricultural tributaries. In contrast, the veterinary antimicrobial sulfamethazine was detected at a mean concentration of 11 ± 9 ng/L in the main channel, and at a much higher concentration in the agricultural tributaries. Lincomycin was detected in only two river samples and not in the effluents while monensin was not detected in all samples. The herbicide atrazine was detected at very low concentrations in the surface waters of both the tributaries and the main channel. The concentrations of the antimicrobials and chemical indicators generally increased downstream of the confluences with agricultural tributaries and effluent outfalls. In the wastewater effluents, the concentrations of trimethoprim, sulfamethoxazole, ibuprofen, and venlafaxine decreased with increasing treatment levels (i.e., secondary to tertiary) as indicated by ammonia/nitrate concentrations. There was a strong correlation among trimethoprim, sulfamethoxazole, and venlafaxine in the main channel and in the wastewater effluents. While the environmental concentrations of antimicrobials in the watershed are low relative to toxicity thresholds, their persistence in the environment may be an important consideration in defining strategies for future water management.
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Affiliation(s)
- Nathanael P Couperus
- University of Waterloo Civil and Environmental Engineering Department, Waterloo, Ontario N2L 3G1, Canada
| | - Sheree A Pagsuyoin
- University of Massachusetts Lowell Civil and Environmental Engineering Department, Lowell, MA 01854, USA.
| | - Leslie M Bragg
- University of Waterloo Biology Department, Waterloo, Ontario N2L 3G1, Canada
| | - Mark R Servos
- University of Waterloo Biology Department, Waterloo, Ontario N2L 3G1, Canada
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135
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136
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Santoro D, Cardoso A, Coutinho F, Pinto L, Vieira R, Albano R, Clementino M. Diversity and antibiotic resistance profiles of Pseudomonads from a hospital wastewater treatment plant. J Appl Microbiol 2015; 119:1527-40. [DOI: 10.1111/jam.12936] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Revised: 07/30/2015] [Accepted: 08/10/2015] [Indexed: 11/27/2022]
Affiliation(s)
- D.O. Santoro
- Instituto Nacional de Controle de qualidade em Saúde; Fundação Oswaldo Cruz - FIOCRUZ; Rio de Janeiro Brazil
| | - A.M. Cardoso
- Fundação Centro Universitário Estadual da Zona Oeste - UEZO; Rio de Janeiro Brazil
| | - F.H. Coutinho
- Universidade Federal do Rio de Janeiro - UFRJ; Instituto de Biologia; Rio de Janeiro Brazil
- Radboud University Medical Centre; Nijmegen Netherlands
| | - L.H. Pinto
- Universidade Estadual do Rio de Janeiro - UERJ; Departamento de Bioquímica; Instituto de Biologia; Rio de Janeiro Brazil
| | - R.P. Vieira
- Instituto Nacional de Controle de qualidade em Saúde; Fundação Oswaldo Cruz - FIOCRUZ; Rio de Janeiro Brazil
| | - R.M. Albano
- Universidade Estadual do Rio de Janeiro - UERJ; Departamento de Bioquímica; Instituto de Biologia; Rio de Janeiro Brazil
| | - M.M. Clementino
- Instituto Nacional de Controle de qualidade em Saúde; Fundação Oswaldo Cruz - FIOCRUZ; Rio de Janeiro Brazil
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137
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Reinemann C, Freiin von Fritsch U, Rudolph S, Strehlitz B. Generation and characterization of quinolone-specific DNA aptamers suitable for water monitoring. Biosens Bioelectron 2015; 77:1039-47. [PMID: 26547431 DOI: 10.1016/j.bios.2015.10.069] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Revised: 10/22/2015] [Accepted: 10/26/2015] [Indexed: 12/17/2022]
Abstract
Quinolones are antibiotics that are accredited in human and veterinary medicine but are regularly used in high quantities also in industrial livestock farming. Since these compounds are often only incompletely metabolized, significant amounts contaminate the aquatic environment and negatively impact on a variety of different ecosystems. Although there is increasing awareness of problems caused by pharmaceutical pollution, available methods for the detection and elimination of numerous pharmaceutical residues are currently inefficient or expensive. While this also applies to antibiotics that may lead to multi-drug resistance in pathogenic bacteria, aptamer-based technologies potentially offer alternative approaches for sensitive and efficient monitoring of pharmaceutical micropollutants. Using the Capture-SELEX procedure, we here describe the selection of an aptamer pool with enhanced binding qualities for fluoroquinolones, a widely used group of antibiotics in both human and veterinary medicine. The selected aptamers were shown to detect various quinolones with high specificity, while specific binding activities to structurally unrelated drugs were not detectable. The quinolone-specific aptamers bound to ofloxacin, one of the most frequently prescribed fluoroquinolone, with high affinity (KD=0.1-56.9 nM). The functionality of quinolone-specific aptamers in real water samples was demonstrated in local tap water and in effluents of sewage plants. Together, our data suggest that these aptamers may be applicable as molecular receptors in biosensors or as catcher molecules in filter systems for improved monitoring and treatment of polluted water.
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Affiliation(s)
- C Reinemann
- UFZ - Helmholtz Centre for Environmental Research, Permoserstraße 15, 04318 Leipzig, Germany.
| | - U Freiin von Fritsch
- UFZ - Helmholtz Centre for Environmental Research, Permoserstraße 15, 04318 Leipzig, Germany
| | - S Rudolph
- UFZ - Helmholtz Centre for Environmental Research, Permoserstraße 15, 04318 Leipzig, Germany
| | - B Strehlitz
- UFZ - Helmholtz Centre for Environmental Research, Permoserstraße 15, 04318 Leipzig, Germany
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138
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Wang Y, Tang W, Qiao J, Song L. Occurrence and prevalence of antibiotic resistance in landfill leachate. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:12525-33. [PMID: 25903180 DOI: 10.1007/s11356-015-4514-7] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2015] [Accepted: 04/07/2015] [Indexed: 05/23/2023]
Abstract
Antibiotic resistance (AR) is extensively present in various environments, posing emerging threat to public and environmental health. Landfill receives unused and unwanted antibiotics through household waste and AR within waste (e.g., activated sludge and illegal clinical waste) and is supposed to serve as an important AR reservoir. In this study, we used culture-dependent methods and quantitative molecular techniques to detect and quantify antibiotic-resistant bacteria (ARB) and antibiotic resistance genes (ARGs) in 12 landfill leachate samples from six geographic different landfills, China. Five tested ARGs (tetO, tetW, bla(TEM), sulI, and sulII) and seven kinds of antibiotic-resistant heterotrophic ARB were extensively detected in all samples, demonstrating their occurrence in landfill. The detected high ratio (10(-2) to 10(-5)) of ARGs to 16S ribosomal RNA (rRNA) gene copies implied that ARGs are prevalent in landfill. Correlation analysis showed that ARGs (tetO, tetW, sulI, and sulII) significantly correlated to ambient bacterial 16S rRNA gene copies, suggesting that the abundance of bacteria in landfill leachate may play an important role in the horizontal spread of ARGs.
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Affiliation(s)
- Yangqing Wang
- Research Center of Environmental Microbiology and Ecology, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 401122, China
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139
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Maselli BDS, Luna LAV, Palmeira JDO, Tavares KP, Barbosa S, Beijo LA, Umbuzeiro GA, Kummrow F. Ecotoxicity of raw and treated effluents generated by a veterinary pharmaceutical company: a comparison of the sensitivities of different standardized tests. ECOTOXICOLOGY (LONDON, ENGLAND) 2015; 24:795-804. [PMID: 25682103 DOI: 10.1007/s10646-015-1425-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 02/04/2015] [Indexed: 06/04/2023]
Abstract
Pharmaceutical effluents have recently been recognized as an important contamination source to aquatic environments and the toxicity related to the presence of antibiotics in effluents has attracted great attention. Conventionally, these effluents have been treated using physico-chemical and aerobic biological processes, usually with low rates of pharmaceuticals removal. Due to the complexity of effluents, it is impossible to determine all pharmaceuticals and their degradation products using analytical methods. Ecotoxicity tests with different organisms may be used to determine the effect level of effluents and thus their environmental impacts. The objective of this work was to compare the sensitivities of five ecotoxicity tests using aquatic and terrestrial organisms to evaluate the toxicity of effluents from the production of veterinary medicines before and after treatment. Raw and chemically treated effluent samples were highly toxic to aquatic organisms, achieving 100,000 toxic units, but only few of those samples presented phytotoxicity. We observed a reduction in the toxicity in the biologically treated effluent samples, which were previously chemically pre-treated, however the toxicity was not eliminated. The rank of test organisms' reactions levels was: Daphnia similis > Raphidocelis subcapitata > Aliivibrio fischeri > Allium cepa ~ Lactuca sativa. Effluent treatment employed by the evaluated company was only partially efficient at removing the effluent toxicity, suggesting potential risks to biota. The acute toxicity test with D. similis proved to be the most sensitive for both raw and treated effluents and is a suitable option for further characterization and monitoring of pharmaceutical effluents.
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Affiliation(s)
- Bianca de S Maselli
- Institute of Natural Sciences, Federal University of Alfenas (Unifal-MG), Alfenas, MG, 37130-000, Brazil
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140
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Miranda C, de Filippis I, Pinto L, Coelho-Souza T, Bianco K, Cacci L, Picão R, Clementino M. Genotypic characteristics of multidrug-resistant Pseudomonas aeruginosa
from hospital wastewater treatment plant in Rio de Janeiro, Brazil. J Appl Microbiol 2015; 118:1276-86. [DOI: 10.1111/jam.12792] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2014] [Revised: 01/16/2015] [Accepted: 02/24/2015] [Indexed: 11/27/2022]
Affiliation(s)
- C.C. Miranda
- Instituto Nacional de Controle de Qualidade em Saúde; FIOCRUZ; Rio de Janeiro Brazil
| | - I. de Filippis
- Instituto Nacional de Controle de Qualidade em Saúde; FIOCRUZ; Rio de Janeiro Brazil
| | - L.H. Pinto
- Departamento de Bioquímica; Instituto de Biologia Roberto Alcântara Gomes; Universidade do Estado do Rio de Janeiro; Rio de Janeiro Brazil
| | - T. Coelho-Souza
- Instituto Nacional de Controle de Qualidade em Saúde; FIOCRUZ; Rio de Janeiro Brazil
| | - K. Bianco
- Instituto Nacional de Controle de Qualidade em Saúde; FIOCRUZ; Rio de Janeiro Brazil
| | - L.C. Cacci
- Instituto de Microbiologia Paulo de Góes; Universidade Federal do Rio de Janeiro; Rio de Janeiro Brazil
| | - R.C. Picão
- Instituto de Microbiologia Paulo de Góes; Universidade Federal do Rio de Janeiro; Rio de Janeiro Brazil
| | - M.M. Clementino
- Instituto Nacional de Controle de Qualidade em Saúde; FIOCRUZ; Rio de Janeiro Brazil
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141
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Gupta VK, Tyagi I, Sadegh H, Ghoshekand RS, Makhlouf ASH, Maazinejad B. Nanoparticles as Adsorbent; A Positive Approach for Removal of Noxious Metal Ions: A Review. ACTA ACUST UNITED AC 2015. [DOI: 10.3923/std.2015.195.214] [Citation(s) in RCA: 102] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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142
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Increased levels of antibiotic resistance in urban stream of Jiulongjiang River, China. Appl Microbiol Biotechnol 2015; 99:5697-707. [PMID: 25661810 DOI: 10.1007/s00253-015-6416-5] [Citation(s) in RCA: 165] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Revised: 01/16/2015] [Accepted: 01/17/2015] [Indexed: 01/22/2023]
Abstract
The rapid global urbanization and other extensive anthropogenic activities exacerbated the worldwide human health risks induced by antibiotic resistance genes (ARGs). Knowledge of the origins and dissemination of ARGs is essential for understanding modern resistome, while little information is known regarding the overall resistance levels in urban river. In this study, the abundance of multi-resistant bacteria (MRB) and ARGs was investigated using culture-based method and high-throughput qPCR in water samples collected from urban stream and source of Jiulongjiang River, China, respectively. The abundance of MRB (conferring resistance to three combinations of antibiotics and vancomycin) was significantly higher in urban samples. A total of 212 ARGs were detected among all the water samples, which encoded resistance to almost all major classes of antibiotics and encompassed major resistant mechanisms. The total abundance of ARGs in urban samples (ranging from 9.72 × 10(10) to 1.03 × 10(11) copies L(-1)) was over two orders of magnitude higher than that in pristine samples (7.18 × 10(8) copies L(-1)), accompanied with distinct ARGs structures, significantly higher diversity, and enrichment of ARGs. Significant correlations between the abundance of ARGs and mobile genetic elements (MGEs) were observed, implicating the potential of horizontal transfer of ARGs. High abundance and enrichment of diverse ARGs and MGEs detected in urban river provide evidence that anthropogenic activities are responsible for the emergence and dissemination of ARGs to the urban river and management options should be taken into account for minimizing the spread of ARGs.
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143
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Naquin A, Shrestha A, Sherpa M, Nathaniel R, Boopathy R. Presence of antibiotic resistance genes in a sewage treatment plant in Thibodaux, Louisiana, USA. BIORESOURCE TECHNOLOGY 2015; 188:79-83. [PMID: 25662190 DOI: 10.1016/j.biortech.2015.01.052] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2014] [Revised: 01/09/2015] [Accepted: 01/10/2015] [Indexed: 06/04/2023]
Abstract
Increasing uses and disposals of antibiotics to the environment have increased emergence of various antibiotic resistance. One of the sources for the spread of antibiotic resistance is wastewater treatment plant, where bacteria and antibiotics can come in contact and can acquire antibiotics resistance. There are very few studies on this subject from a small town sewage treatment plant. Therefore, this study was conducted using raw sewage as well as treated sewage from a sewage treatment plant in Thibodaux in rural southeast Louisiana in USA. Samples were collected monthly from the Thibodaux sewage treatment plant and the presence of antibiotic resistance genes was monitored. The study showed the presence of antibiotic resistance genes in both raw and treated sewage in every month of the study period. The genetic transformation assay showed the successful transformation of methicillin resistant gene, mecA to an antibiotic sensitive Staphylococcus aureus, which became antibiotic resistant within 24h.
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Affiliation(s)
- Anthony Naquin
- Department of Biological Sciences, Nicholls State University, Thibodaux, LA 70310, USA
| | - Arsen Shrestha
- Department of Biological Sciences, Nicholls State University, Thibodaux, LA 70310, USA
| | - Mingma Sherpa
- Department of Biological Sciences, Nicholls State University, Thibodaux, LA 70310, USA
| | - Rajkumar Nathaniel
- Department of Biological Sciences, Nicholls State University, Thibodaux, LA 70310, USA
| | - Raj Boopathy
- Department of Biological Sciences, Nicholls State University, Thibodaux, LA 70310, USA.
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144
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Impacts of Advanced Oxidation Processes on Microbiomes During Wastewater Treatment. THE HANDBOOK OF ENVIRONMENTAL CHEMISTRY 2015. [DOI: 10.1007/698_2015_359] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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145
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Yi T, Kim TG, Cho KS. Fate and behavior of extended-spectrum β-lactamase-producing genes in municipal sewage treatment plants. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2015; 50:1160-1168. [PMID: 26191990 DOI: 10.1080/10934529.2015.1047673] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Extended-spectrum β-lactamases (ESBLs) have the capability of hydrolyzing a variety of the newer β-lactam antibiotics, including the third-generation cephalosporins and monobactams known as a rapidly evolving group of ESBLs. The purpose of this study was to investigate the occurrence and fate of β-lactamase producing genes (CTX-M type 1, type2, CTX-M probe for all groups except CTX-M-1, and TEM, SHV, OXA) through wastewater treatment utilities. β-lactamase producing genes in influent, digested sludge, activated sludge, and disinfected effluent were monitored. The results showed that influent contained high level of all target genes, and all CTX-M types, SHV, and OXA gene decreased significantly in biological treatment process such as activated sludge process and anaerobic digestion, however, TEM type was not effectively eliminated. Possibly, host microbes of TEM could be most resistant in target genes or to some extent gene transfer occurred in wastewater treatment processes. All target genes were significantly reduced during disinfection. Consequently, wastewater treatment process apparently reduced host microbes carrying β-lactamase producing genes effectively, although they are selectively removed in biological processes. In addition, the significant reduction during disinfection was shown, although slightly differences of removal efficiency were observed in resistance.
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Affiliation(s)
- Taewoo Yi
- a Department of Environmental Science and Engineering, Ewha Womans University , Seoul , South Korea
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146
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Amador PP, Fernandes RM, Prudêncio MC, Barreto MP, Duarte IM. Antibiotic resistance in wastewater: occurrence and fate of Enterobacteriaceae producers of class A and class C β-lactamases. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2015; 50:26-39. [PMID: 25438129 DOI: 10.1080/10934529.2015.964602] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Antibiotics have been intensively used over the last decades in human and animal therapy and livestock, resulting in serious environmental and public health problems, namely due to the antibiotic residues concentration in wastewaters and to the development of antibiotic-resistant bacteria. This study aimed to access the contribution of some anthropological activities, namely urban household, hospital and a wastewater treatment plant, to the spread of antibiotic resistances in the treated wastewater released into the Mondego River, Coimbra, Portugal. Six sampling sites were selected in the wastewater network and in the river. The ampicillin-resistant Enterobacteriaceae of the water samples were enumerated, isolated and phenotypically characterized in relation to their resistance profile to 13 antibiotics. Some isolates were identified into species level and investigated for the presence of class A and class C -lactamases. Results revealed high frequency of resistance to the -lactam group, cefoxitin (53.5%), amoxicillin/clavulanic acid combination (43.5%), cefotaxime (22.7%), aztreonam (21.3) cefpirome (19.2%), ceftazidime (16.2%) and to the non--lactam group, trimethoprim/sulfamethoxazol (21.1%), tetracycline (18.2%), followed by ciprofloxacin (14.1%). The hospital effluent showed the higher rates of resistance to all antibiotic, except two (chloramphenicol and gentamicin). Similarly, higher resistance rates were detected in the wastewater treatment plant (WWTP) effluent compared with the untreated affluent. Regarding the multidrug resistance, the highest incidence was recorded in the hospital sewage and the lowest in the urban waste. The majority of the isolates altogether are potentially extended-spectrum -lactamases positive (ESBL(+)) (51.9%), followed by AmpC(+) (44.4%) and ESBL(+)/AmpC(+) (35.2%). The most prevalent genes among the potential ESBL producers were blaOXA (33.3%), blaTEM (24.1%) and blaCTX-M (5.6%) and among the AmpC producers were blaEBC (38.9%), blaFOX (1.9%) and blaCIT (1.9%). In conclusion, the hospital and the WWTP activities revealed to have the highest contribution to the spread of multidrug resistant bacteria in the study area. Such data is important for future management of the environmental and public health risk of these contaminants. This is the first embracing study in the water network of Coimbra region on the dissemination of antibiotic resistance determinants. Moreover, it is also the first report with the simultaneous detection of multiresistant bacteria producers of AmpC and ESBLs -lactamases in aquatic systems in Portugal.
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Affiliation(s)
- Paula P Amador
- a Departamento de Ambiente, CERNAS , Escola Superior Agraria do Instituto Politécnico de Coimbra , Coimbra , Portugal
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147
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Chon K, Cho J, Kim SJ, Jang A. The role of a combined coagulation and disk filtration process as a pre-treatment to microfiltration and reverse osmosis membranes in a municipal wastewater pilot plant. CHEMOSPHERE 2014; 117:20-26. [PMID: 25433990 DOI: 10.1016/j.chemosphere.2014.05.042] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2014] [Revised: 05/07/2014] [Accepted: 05/08/2014] [Indexed: 06/04/2023]
Abstract
A pilot study was conducted to assess the performance of a municipal wastewater reclamation plant consisting of a combined coagulation-disk filtration (CC-DF) process, microfiltration (MF) and reverse osmosis (RO) membranes, in terms of the removal of water contaminants and changes in characteristics of effluent organic matter (EfOM). The CC-DF and MF membranes were not effective for the removal of dissolved water contaminants. However, they could partially reduce the turbidity associated with the cake layer formation by particulate materials on the membrane surfaces. Furthermore, most of water contaminants were completely removed by the RO membranes. Although the CC-DF process could remove approximately 20% of turbidity, the aluminium concentrations considerably increased after the CC-DF process due to the residual coagulants complexed with both carboxylic acid and alcohol functional groups of EfOM. Those aluminium-EfOM complexes had a lower negative charge and higher molecular weight (>0.1 μm pore size of the MF membranes) compared to non-complexed EfOM. These results indicate that the control of the formation of the aluminium-EfOM complexes should be considered as a key step to use the CC-DF process as a pre-treatment of the MF and RO membranes for mitigation of membrane fouling in the tested pilot plant.
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Affiliation(s)
- Kangmin Chon
- Jeju Global Research Center (JGRC), Korea Institute of Energy Research (KIER), 200 Haemajihaean-ro, Gujwa-eup, Jeju-si, Jeju-do 695-971, Republic of Korea; School of Environmental Science and Engineering, Gwangju Institute of Science and Technology (GIST), 261 Cheomdan-gwagiro, Buk-gu, Gwangju 500-712, Republic of Korea
| | - Jaeweon Cho
- Department of Civil and Environmental Engineering, College of Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, Republic of Korea
| | - Seung Joon Kim
- Environmental Technology Research Laboratory, Research and Business Development Center, Kolon Global, 199-5 Jeondae-ri, Pogok-eup, Cheoin-gu, Yongin, Gyeonggi-do 449-815, Republic of Korea
| | - Am Jang
- School of Civil and Architecture Engineering, Sungkyunkwan University, 2066 Seobu-ro, Jangan-Gu, Suwon, Gyeonggi-do 440-746, Republic of Korea.
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148
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Wan MT, Chou CC. Spreading of β-lactam resistance gene (mecA) and methicillin-resistant Staphylococcus aureus through municipal and swine slaughterhouse wastewaters. WATER RESEARCH 2014; 64:288-295. [PMID: 25086302 DOI: 10.1016/j.watres.2014.07.014] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2013] [Revised: 06/30/2014] [Accepted: 07/09/2014] [Indexed: 05/23/2023]
Abstract
Methicillin-resistant Staphylococcus aureus (MRSA) is a potential zoonotic agent. Municipal wastewater treatment plants (WWTPs) can be reservoirs for MRSA dissemination. It is unclear, however, whether MRSA and its β-lactam resistance gene (mecA) can be spread from WWTPs that treat the wastewater of swine auction markets. The aims of the study were to compare (1) the abundance of the mecA gene in one municipal (M-) and one swine (S-) WWTP and (2) the genotypic and phenotypic characteristics of MRSA isolates from these two types of WWTPs. The concentrations of mecA gene from 96 wastewater samples were quantified using real-time quantitative polymerase chain reaction (real-time qPCR). One hundred and thirteen MRSA isolates were recovered and were characterized by antimicrobial susceptibility testing, minimum inhibitory concentrations (MICs), and staphylococcal cassette chromosome mec (SCCmec) typing. The mecA gene could be detected in all the wastewater samples. A high abundance of recovered mecA gene (2.6 × 10(1) to 1.9 × 10(4) gene copies μg(-1) of total DNA) in swine slaughterhouse wastewater implied a correspondingly high transferring/receiving potential. All MRSA isolates were multidrug resistant (MDR) and showed high MICs to different antimicrobials. The M-WWTP MRSA isolates harbored SCCmec II-IV and VII, whereas those from the S-WWTP harbored SCCmec V and IX. In conclusion, wastewater from swine slaughterhouses can make these slaughterhouses potential hotspots for the dissemination of mecA gene and MRSA, and the high MICs of MRSA from both WWTP origins may pose a health risk not only to workers but also to the general public.
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Affiliation(s)
- Min Tao Wan
- School of Veterinary Medicine, National Taiwan University, No. 1, Section 4, Roosevelt Road, Taipei 106, Taiwan
| | - Chin Cheng Chou
- School of Veterinary Medicine, National Taiwan University, No. 1, Section 4, Roosevelt Road, Taipei 106, Taiwan.
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149
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Falamarzian S, Tavakoli O, Zarghami R, Faramarzi MA. Catalytic hydrothermal treatment of pharmaceutical wastewater using sub- and supercritical water reactions. J Supercrit Fluids 2014. [DOI: 10.1016/j.supflu.2014.07.017] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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150
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Miller J, Novak J, Knocke W, Pruden A. Elevation of antibiotic resistance genes at cold temperatures: implications for winter storage of sludge and biosolids. Lett Appl Microbiol 2014; 59:587-93. [DOI: 10.1111/lam.12325] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2014] [Revised: 08/06/2014] [Accepted: 08/23/2014] [Indexed: 11/30/2022]
Affiliation(s)
- J.H. Miller
- Charles E. Via, Jr. Department of Civil and Environmental Engineering; Virginia Tech; Blacksburg VA USA
| | - J.T. Novak
- Charles E. Via, Jr. Department of Civil and Environmental Engineering; Virginia Tech; Blacksburg VA USA
| | - W.R. Knocke
- Charles E. Via, Jr. Department of Civil and Environmental Engineering; Virginia Tech; Blacksburg VA USA
| | - A. Pruden
- Charles E. Via, Jr. Department of Civil and Environmental Engineering; Virginia Tech; Blacksburg VA USA
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