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Leopold M, Kabicher A, Pap IJ, Ströbele B, Zarfel G, Farnleitner AH, Kirschner AKT. A comparative study on antibiotic resistant Escherichia coli isolates from Austrian patients and wastewater-influenced Danube River water and biofilms. Int J Hyg Environ Health 2024; 258:114361. [PMID: 38552533 DOI: 10.1016/j.ijheh.2024.114361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 03/04/2024] [Accepted: 03/22/2024] [Indexed: 04/06/2024]
Abstract
Antimicrobial resistance (AMR) poses a major threat to human health worldwide. AMR can be introduced into natural aquatic ecosystems, for example, from clinical facilities via wastewater emissions. Understanding AMR patterns in environmental populations of bacterial pathogens is important to elucidate propagation routes and develop mitigation strategies. In this study, AMR patterns of Escherichia coli isolates from urinary tract infections and colonised urinary catheters of inpatients and outpatients were compared to isolates from the Danube River within the same catchment in Austria to potentially link environmental with clinical resistance patterns. Susceptibility to 20 antibiotics was tested for 697 patient, 489 water and 440 biofilm isolates. The resistance ratios in patient isolates were significantly higher than in the environmental isolates and higher resistance ratios were found in biofilm in comparison to water isolates. The role of the biofilm as potential sink of resistances was reflected by two extended-spectrum beta-lactamase (ESBL) producing isolates in the biofilm while none were found in water, and by higher amoxicillin/clavulanic acid resistance ratios in biofilm compared to patient isolates. Although, resistances to last-line antibiotics such as carbapenems and tigecycline were found in the patient and in the environmental isolates, they still occurred at low frequency.
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Affiliation(s)
- Melanie Leopold
- Division Water Quality and Health, Department Pharmacology, Physiology and Microbiology, Karl Landsteiner University of Health Sciences, Krems, Austria; Institute for Chemical, Environmental and Bioscience Engineering, Research Group Microbiology and Molecular Diagnostics, Technische Universität Wien, Vienna, Austria
| | - Angelika Kabicher
- Division Water Quality and Health, Department Pharmacology, Physiology and Microbiology, Karl Landsteiner University of Health Sciences, Krems, Austria; Institute for Chemical, Environmental and Bioscience Engineering, Research Group Microbiology and Molecular Diagnostics, Technische Universität Wien, Vienna, Austria
| | - Ildiko-Julia Pap
- Clinical Institute for Hygiene and Microbiology, University Clinic St. Pölten, Austria
| | - Barbara Ströbele
- Clinical Institute for Hygiene and Microbiology, University Clinic St. Pölten, Austria
| | - Gernot Zarfel
- Institute of Hygiene, Microbiology and Environmental Medicine, Medical University Graz, Austria
| | - Andreas H Farnleitner
- Division Water Quality and Health, Department Pharmacology, Physiology and Microbiology, Karl Landsteiner University of Health Sciences, Krems, Austria; Institute for Chemical, Environmental and Bioscience Engineering, Research Group Microbiology and Molecular Diagnostics, Technische Universität Wien, Vienna, Austria
| | - Alexander K T Kirschner
- Division Water Quality and Health, Department Pharmacology, Physiology and Microbiology, Karl Landsteiner University of Health Sciences, Krems, Austria; Institute for Hygiene and Applied Immunology - Water Microbiology, Medical University Vienna, Austria.
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Oyewale AT, Odetoyin BW, Oluduro AO, Adeniyi IF. Occurrence of coliforms and biofilm-forming bacteria in raw, treated, and distributed water from two waterwork systems in Osun State, Southwestern Nigeria. JOURNAL OF WATER AND HEALTH 2024; 22:673-688. [PMID: 38678421 DOI: 10.2166/wh.2024.302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Accepted: 02/22/2024] [Indexed: 04/30/2024]
Abstract
This study assessed the bacteriological quality of raw, treated, and distributed water from Ede-Erinle and Opa reservoirs in Osun State, Nigeria. This was to determine the potability of water from these waterwork stations. Eighteen sampling points were established across the two reservoir networks for this study. Samples were collected bi-monthly for two annual cycles. Serial dilution and pour plate methods were employed for the enumeration of bacterial load. Total heterotrophic bacteria count (THBC) and total coliform bacteria count (TCBC) were enumerated on nutrient and MacConkey agar at 37 °C, respectively. Bacterial isolates were characterized using biochemical identification methods with reference to Bergey's Manual of Determinative Bacteriology. Bacterial isolates and biofilm formation were further identified molecularly through the PCR method using specific universal primers. Mean values of THBC and TCBC in distributed water from Ede-Erinle (9.61 × 104 ± 1.50 × 104 CFU/mL; 69.56 ± 26.81 CFU/mL) and Opa waterworks (9.58 × 104 ± 2.55 × 104 CFU/mL; 142.94 ± 44.41 CFU/mL) exceeded permissible limits for drinking water. Paenibacillus lautus, Bacillus pseudomycoides, Pseudomonas aeruginosa, and Pseudomonas stutzeri showed biofilm-forming capacity. The study concluded that the presence of coliforms and biofilm-forming bacteria in distributed water implies that the water is unfit for consumption without further treatment.
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Affiliation(s)
- Abayomi Tolulope Oyewale
- Institute of Ecology and Environmental Studies, Obafemi Awolowo University, Ile-Ife, Nigeria E-mail: ;
| | - Babatunde Wumi Odetoyin
- Department of Medical Microbiology and Parasitology, Obafemi Awolowo University, Ile-Ife, Nigeria
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Matsumura Y, Ikegaya K. MALDI-TOF MS Approaches for the Identification of the Susceptibility of Extended-Spectrum β-Lactamases in Escherichia coli. Microorganisms 2023; 11:1250. [PMID: 37317224 DOI: 10.3390/microorganisms11051250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 04/28/2023] [Accepted: 05/04/2023] [Indexed: 06/16/2023] Open
Abstract
The increase in multidrug-resistant microorganisms that produce extended-spectrum β-lactamases (ESBLs) and carbapenemases is a serious problem worldwide. Recently, matrix-assisted laser desorption ionization-time-of-flight mass spectrometry (MALDI-TOF MS) has been used for the rapid detection of antibiotic-resistant bacteria. The objective of this study was to establish a method to detect ESBL-producing Escherichia coli by monitoring the hydrolyzation of cefotaxime (CTX) using MALDI-TOF MS. According to the ratio of the peak intensity of CTX and hydrolyzed-CTX-related compounds, the ESBL-producing strains could be clearly distinguished after 15 min of incubation. Moreover, the minimum inhibitory concentration (MIC) values for E. coli were 8 μg/mL and lower than 4 μg/mL, which could be distinguished after 30 min and 60 min of incubation, respectively. The enzymatic activity was determined using the difference in the signal intensity of the hydrolyzed CTX at 370 Da for the ESBL-producing strains incubated with or without clavulanate. The ESBL-producing strains with low enzymatic activity or blaCTX-M genes could be detected by monitoring the hydrolyzed CTX. These results show that this method can rapidly detect high-sensitivity ESBL-producing E. coli.
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Affiliation(s)
- Yuriko Matsumura
- Postgraduate School of Healthcare, Tokyo Healthcare University, 4-1-17 Higashi-Gotanda, Shinagawa-ku, Tokyo 141-8648, Japan
| | - Kazuko Ikegaya
- Shizuoka City Shimizu Hospital, 1231, Miyakami, Shimizu-ku, Shizuoka 424-8638, Japan
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AGBOOLA TD, BISI-JOHNSON MA. OCCURRENCE OF Listeria monocytogenes IN IRRIGATION WATER AND IRRIGATED VEGETABLES IN SELECTED AREAS OF OSUN STATE, NIGERIA. SCIENTIFIC AFRICAN 2022. [DOI: 10.1016/j.sciaf.2022.e01503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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Rajabi A, Farajzadeh D, Dehghanzadeh R, Aslani H, Mousavi S, Mosaferi M, Dehghani MH, Asghari FB. Characterization of antibiotic resistance genes and bacteria in a municipal water resource recovery facility. WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2022; 94:e10750. [PMID: 35765862 DOI: 10.1002/wer.10750] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 05/17/2022] [Accepted: 05/25/2022] [Indexed: 06/15/2023]
Abstract
Municipal water resource recovery facilities (WRRFs) are important sources of antibiotic-resistant bacteria and genes (ARB and ARGs). In this study, antibiotic-resistant total heterotrophic bacteria (THBR ) counts (CFU/ml) cultivated from influent, effluent of activated sludge process, and outflow of disinfection unit of an urban WRRF were investigated for the presence of 16, 32, 64, and 128 μg/ml of nine antibiotics. The isolates of Pseudomonas spp., Acinetobacter spp., and Escherichia coli obtained from effluent of activated sludge process were subjected for molecular identification by detecting the 16S rRNA gene sequences. Additionally, using the polymerase chain reaction method (PCR), the isolates were investigated for the presence of blaSHV , blaTEM , blaCTX-M , blaVIM , sul1, and qnrS genes. According to the results, the abundance of THBR counts was not significantly reduced by the biological treatment except for cefixime and sulfamethoxazole; it also increased for some antibiotics after disinfection unit. The average removal efficiency of THBR resistant to ciprofloxacin, sulfamethoxazole, and ceftazidime were 7.9 ± 1.7%, 41.8 ± 2.1%, and 14.4 ± 6.2%, respectively. Also, all the tested isolates were resistant to at least four antibiotics. For all antibiotics, the resistance ratio (THBR /THB) significantly increased in the effluent and after chlorination unit. Among 12 resistant isolates, blaTEM and sul1 genes were the most frequently detected ones involved in 92% and 83% of the isolates, respectively. Both blaTEM and sul1 genes were found in 100% of E. coli, and 83% and 67% of Pseudomonas spp. isolates, respectively. Further efforts are necessary to limit the transmission of ARB and ARGs from WRRFs into the environment and prevent human health threats. PRACTITIONER POINTS: The ratio of resistance significantly increased after biological treatment. Up to 40% of heterotrophic bacteria in the effluent was antibiotic resistant. blaTEM and sul1 genes were more prevalent (92%) in all isolates of bacteria. Both blaTEM and sul1 genes were found in 100% of E. coli isolates. Pseudomonas spp. holds blaTEM and sul1 genes in 83% and 67% of isolates, respectively.
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Affiliation(s)
- Akbar Rajabi
- Department of Environmental Health Engineering, Faculty of Health, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Davoud Farajzadeh
- Department of Cellular and Molecular Biology, Faculty of Biological Sciences, Azarbaijan Shahid Madani University, Tabriz, Iran
| | - Reza Dehghanzadeh
- Department of Environmental Health Engineering, Faculty of Health, Tabriz University of Medical Sciences, Tabriz, Iran
- Health and Environment Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hassan Aslani
- Department of Environmental Health Engineering, Faculty of Health, Tabriz University of Medical Sciences, Tabriz, Iran
- Health and Environment Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Saeid Mousavi
- Department of Statistics and Epidemiology, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Mosaferi
- Department of Environmental Health Engineering, Faculty of Health, Tabriz University of Medical Sciences, Tabriz, Iran
- Health and Environment Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Hadi Dehghani
- Institute for Environmental Research, Center for Solid Waste Research, Tehran University of Medical Sciences, Tehran, Iran
| | - Farzaneh Baghal Asghari
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
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Synergistic Role of Plant Extracts and Essential Oils against Multidrug Resistance and Gram-Negative Bacterial Strains Producing Extended-Spectrum β-Lactamases. Antibiotics (Basel) 2022; 11:antibiotics11070855. [PMID: 35884109 PMCID: PMC9312036 DOI: 10.3390/antibiotics11070855] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Revised: 06/20/2022] [Accepted: 06/22/2022] [Indexed: 02/06/2023] Open
Abstract
Plants, being the significant and natural source of medication for humankind against several ailments with characteristic substances hidden on them, have been recognized for many centuries. Accessibility of various methodologies for the revelation of therapeutically characteristic items has opened new avenues to redefine plants as the best reservoirs of new structural types. The role of plant metabolites to hinder the development and movement of pathogenic microbes is cherished. Production of extended-spectrum β-lactamases is an amazing tolerance mechanism that hinders the antibacterial treatment of infections caused by Gram-negative bacteria and is a serious problem for the current antimicrobial compounds. The exploration of the invention from sources of plant metabolites gives sustenance against the concern of the development of resistant pathogens. Essential oils are volatile, natural, complex compounds described by a solid odor and are framed by aromatic plants as secondary metabolites. The bioactive properties of essential oils are commonly controlled by the characteristic compounds present in them. They have been commonly utilized for bactericidal, virucidal, fungicidal, antiparasitic, insecticidal, medicinal, and antioxidant applications. Alkaloids are plant secondary metabolites that have appeared to have strong pharmacological properties. The impact of alkaloids from Callistemon citrinus and Vernonia adoensis leaves on bacterial development and efflux pump activity was assessed on Pseudomonas aeruginosa. Plant-derived chemicals may have direct antibacterial activity and/or indirect antibacterial activity as antibiotic resistance modifying agents, increasing the efficiency of antibiotics when used in combination. The thorough screening of plant-derived bioactive chemicals as resistance-modifying agents, including those that can act synergistically with antibiotics, is a viable method to overcome bacterial resistance. The synergistic assessment studies with the plant extract/essential oil and the antibiotic compounds is essential with a target for achieving a redesigned model with sustainable effects which are appreciably noticeable in specific sites of the plants compared to the entirety of their individual parts.
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High Genetic Diversity and Antimicrobial Resistance in Escherichia coli Highlight Arapaima gigas (Pisces: Arapaimidae) as a Reservoir of Quinolone-Resistant Strains in Brazilian Amazon Rivers. Microorganisms 2022; 10:microorganisms10040808. [PMID: 35456858 PMCID: PMC9030826 DOI: 10.3390/microorganisms10040808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 03/03/2022] [Accepted: 03/06/2022] [Indexed: 12/10/2022] Open
Abstract
The increasing prevalence of multi-drug resistant (MDR) Escherichia coli in distinct ecological niches, comprising water sources and food-producing animals, such as fish species, has been widely reported. In the present study, quinolone-resistant E. coli isolates from Arapirama gigas, a major fish species in the Brazilian Amazon rivers and fish farms, were characterized regarding their antimicrobial susceptibility, virulence, and genetic diversity. A total of forty (40) specimens of A. gigas, including 20 farmed and 20 wild fish, were included. Thirty-four quinolone-resistant E. coli isolates were phenotypically tested by broth microdilution, while resistance and virulence genes were detected by PCR. Molecular epidemiology and genetic relatedness were analyzed by MLST and PFGE typing. The majority of isolates were classified as MDR and detected harboring blaCTX-M, qnrA and qnrB genes. Enterotoxigenic E. coli pathotype (ETEC) isolates were presented in low prevalence among farmed animals. MLST and PFGE genotyping revealed a wide genetic background, including the detection of internationally spread clones. The obtained data point out A. gigas as a reservoir in Brazilian Amazon aquatic ecosystems and warns of the interference of AMR strains in wildlife and environmental matrices.
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Effect of Intramuscularly Administered Oxytetracycline or Enrofloxacin on Vancomycin-Resistant Enterococci, Extended Spectrum Beta-Lactamase- and Carbapenemase-Producing Enterobacteriaceae in Pigs. Animals (Basel) 2022; 12:ani12050622. [PMID: 35268191 PMCID: PMC8909026 DOI: 10.3390/ani12050622] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 02/25/2022] [Accepted: 02/28/2022] [Indexed: 12/24/2022] Open
Abstract
Simple Summary Nowadays, there is great concern about the prevalence of multidrug resistant bacteria in food-producing animals since they are potential sources of transmission to humans. The aim of this work was to evaluate the effect of two antibiotics (oxytetracycline and enrofloxacin) treatments in pigs on resistant bacteria that are considered a threat to public health. This study highlights that the use of oxytetracycline or enrofloxacin in food-producing animals could select resistant bacteria in pig faeces. Special care should be taken to avoid faecal contamination of carcasses during slaughter. Abstract Nowadays, there is a great concern about the prevalence of multidrug resistant Enterococcus spp. and Enterobacteriaceae in food-producing animals. The aim of this work was to evaluate the effect of oxytetracycline or enrofloxacin treatment on vancomycin-resistant enterococci (VRE), extended spectrum β-lactamase (ESBL) and carbapenemase-producing Enterobacteriaceae in pigs. A total of 26 piglets were received and distributed in three groups. Group 1 was treated with enrofloxacin (N = 12), group 2 with oxytetracycline (N = 10) and group 3 did not receive any treatment (control group) (N = 4). A higher number of vancomycin-resistant E. faecium were recovered compared to E. faecalis. In the pigs treated with enrofloxacin, vancomycin resistant E. faecium was found in a higher percentage of animals than in the control group. ESBL-producing E. coli was not detected in rectal samples from control animals. However, it was detected in 17–20% of animals treated with oxytetracycline on days 6 to 17 and in 17–50% of the animals treated with enrofloxacin. Carbapenemase-producing E. coli was isolated in animals treated with oxytetracycline, but not in animals treated with enrofloxacin or in the control group. This study highlights that the use of oxytetracycline or enrofloxacin in food-producing animals could select ESBL and carbapenemase-producing E. coli. Further studies shall be needed to validate the results obtained, considering a more robust and extended experimental design.
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Multiplex Lateral Flow Immunoassay for the Detection of Expanded-Spectrum Hydrolysis and CTX-M Enzymes. Diagnostics (Basel) 2022; 12:diagnostics12010190. [PMID: 35054357 PMCID: PMC8775197 DOI: 10.3390/diagnostics12010190] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 01/10/2022] [Accepted: 01/11/2022] [Indexed: 01/21/2023] Open
Abstract
Background: Early detection of expanded-spectrum cephalosporinase (ESC) hydrolyzing ß-lactamases is essential for antibiotic stewardship. Here we have developed a multiplex lateral flow immunoassay (LFIA) that detects cefotaxime-hydrolyzing activity as well as the most prevalent ESC-hydrolyzing ß-lactamases: the CTX-M-like. Methods: The Rapid LFIA ESC test was evaluated retrospectively on 188 (139 Enterobacterales, 30 Pseudomonas spp. and 14 Acinetobacter spp.) agar-grown bacterial isolates with well-characterized ß-lactamase content. One single colony was resuspended in 150 µL extraction buffer containing cefotaxime, incubated at room temperature for 30 min prior to loading on the LFIA for reading within 10 min. Results: Out of the 188 isolates, all 17 that did not express a β-lactamase hydrolyzing cefotaxime gave negative results, and all 171 isolates expressing a β-lactamase known to hydrolyze cefotaxime, gave a positive test result. In addition, all 86 isolates expressing a CTX-M-variant belonging to one of the five CTX-M-subgroups were correctly identified. The sensitivity and specificity was 100% for both tests. Conclusions: The results showed that the multiplex LFIA was efficient, fast, low cost and easy to implement in routine laboratory work for the confirmation of ESC hydrolyzing activity and the presence of CTX-M enzymes.
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Nishida S, Nakagawa M, Ouchi Y, Sakuma C, Nakajima Y, Shimizu H, Shibata T, Kurosawa Y, Maruyama T, Okumura CJ, Hatayama N, Sato Y, Asahara M, Ishigaki S, Furukawa T, Akuta T, Ono Y. A rabbit monoclonal antibody-mediated lateral flow immunoassay for rapid detection of CTX-M extended-spectrum β-lactamase-producing Enterobacterales. Int J Biol Macromol 2021; 185:317-323. [PMID: 34129888 DOI: 10.1016/j.ijbiomac.2021.06.064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 06/04/2021] [Accepted: 06/09/2021] [Indexed: 10/21/2022]
Abstract
Infections of CTX-M extended-spectrum β-lactamase-producing Enterobacterales are a severe threat in clinical settings. CTX-M genes on plasmids have been transferred to many Enterobacterales species, and these species have spread, leading to the global problem of antimicrobial resistance. Here, we developed a lateral flow immunoassay (LFIA) based on an anti-CTX-M rabbit monoclonal antibody. This antibody detected CTX-M variants from the CTX-M-9, CTX-M-2, and CTX-M-1 groups expressed in clinical isolates. The LFIA showed 100% sensitivity and specificity with clinical isolates on agar plates, and its limit of detection was 0.8 ng/mL recombinant CTX-M-14. The rabbit monoclonal antibody did not cross-react with bacteria producing other class A β-lactamases, including SHV. In conclusion, we developed a highly sensitive and specific LFIA capable of detecting CTX-M enzyme production in Enterobacterales. We anticipate that our LFIA will become a point-of-care test enabling rapid detection of CTX-M in hospital and community settings as well as a rapid environmental test.
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Affiliation(s)
- Satoshi Nishida
- Department of Microbiology and Immunology, Teikyo University School of Medicine, 2-11-1 Kaga, Itabashi-ku, Tokyo 173-8605, Japan.
| | - Masataka Nakagawa
- Department of Microbiology and Immunology, Teikyo University School of Medicine, 2-11-1 Kaga, Itabashi-ku, Tokyo 173-8605, Japan; Kyokuto Pharmaceutical Industrial Co., Ltd., 7-8 Nihonbashi Kobunacho, Chuo-ku, Tokyo, 103-0024, Japan
| | - Yuki Ouchi
- Kyokuto Pharmaceutical Industrial Co., Ltd., 7-8 Nihonbashi Kobunacho, Chuo-ku, Tokyo, 103-0024, Japan
| | - Chiaki Sakuma
- Kyokuto Pharmaceutical Industrial Co., Ltd., 7-8 Nihonbashi Kobunacho, Chuo-ku, Tokyo, 103-0024, Japan
| | - Yu Nakajima
- Kyokuto Pharmaceutical Industrial Co., Ltd., 7-8 Nihonbashi Kobunacho, Chuo-ku, Tokyo, 103-0024, Japan
| | - Hisayo Shimizu
- Kyokuto Pharmaceutical Industrial Co., Ltd., 7-8 Nihonbashi Kobunacho, Chuo-ku, Tokyo, 103-0024, Japan
| | - Takashi Shibata
- Kyokuto Pharmaceutical Industrial Co., Ltd., 7-8 Nihonbashi Kobunacho, Chuo-ku, Tokyo, 103-0024, Japan
| | - Yasunori Kurosawa
- Kyokuto Pharmaceutical Industrial Co., Ltd., 7-8 Nihonbashi Kobunacho, Chuo-ku, Tokyo, 103-0024, Japan
| | - Toshiaki Maruyama
- Abwiz Bio, Inc., 9823 Pacific Heights BLVD, Suite J, San Diego, CA, 92121, USA
| | - C J Okumura
- Abwiz Bio, Inc., 9823 Pacific Heights BLVD, Suite J, San Diego, CA, 92121, USA
| | - Nami Hatayama
- Department of Microbiology and Immunology, Teikyo University School of Medicine, 2-11-1 Kaga, Itabashi-ku, Tokyo 173-8605, Japan
| | - Yoshinori Sato
- Department of Microbiology and Immunology, Teikyo University School of Medicine, 2-11-1 Kaga, Itabashi-ku, Tokyo 173-8605, Japan
| | - Miwa Asahara
- Department of Laboratory Medicine, Teikyo University Hospital, 2-11-1 Kaga, Itabashi-ku, Tokyo 173-8605, Japan
| | - Shinobu Ishigaki
- Department of Laboratory Medicine, Teikyo University Hospital, 2-11-1 Kaga, Itabashi-ku, Tokyo 173-8605, Japan
| | - Taiji Furukawa
- Department of Laboratory Medicine, Teikyo University Hospital, 2-11-1 Kaga, Itabashi-ku, Tokyo 173-8605, Japan
| | - Teruo Akuta
- Department of Microbiology and Immunology, Teikyo University School of Medicine, 2-11-1 Kaga, Itabashi-ku, Tokyo 173-8605, Japan; Kyokuto Pharmaceutical Industrial Co., Ltd., 7-8 Nihonbashi Kobunacho, Chuo-ku, Tokyo, 103-0024, Japan
| | - Yasuo Ono
- Department of Microbiology and Immunology, Teikyo University School of Medicine, 2-11-1 Kaga, Itabashi-ku, Tokyo 173-8605, Japan.
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Bacterial Resistance to Antimicrobial Agents. Antibiotics (Basel) 2021; 10:antibiotics10050593. [PMID: 34067579 PMCID: PMC8157006 DOI: 10.3390/antibiotics10050593] [Citation(s) in RCA: 73] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 05/12/2021] [Accepted: 05/14/2021] [Indexed: 12/26/2022] Open
Abstract
Bacterial pathogens as causative agents of infection constitute an alarming concern in the public health sector. In particular, bacteria with resistance to multiple antimicrobial agents can confound chemotherapeutic efficacy towards infectious diseases. Multidrug-resistant bacteria harbor various molecular and cellular mechanisms for antimicrobial resistance. These antimicrobial resistance mechanisms include active antimicrobial efflux, reduced drug entry into cells of pathogens, enzymatic metabolism of antimicrobial agents to inactive products, biofilm formation, altered drug targets, and protection of antimicrobial targets. These microbial systems represent suitable focuses for investigation to establish the means for their circumvention and to reestablish therapeutic effectiveness. This review briefly summarizes the various antimicrobial resistance mechanisms that are harbored within infectious bacteria.
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Pugia M, Bose T, Tjioe M, Frabutt D, Baird Z, Cao Z, Vorsilak A, McLuckey I, Barron MR, Barron M, Denys G, Carpenter J, Das A, Kaur K, Roy S, Sen CK, Deiss F. Multiplexed Signal Ion Emission Reactive Release Amplification (SIERRA) Assay for the Culture-Free Detection of Gram-Negative and Gram-Positive Bacteria and Antimicrobial Resistance Genes. Anal Chem 2021; 93:6604-6612. [PMID: 33819029 PMCID: PMC9097648 DOI: 10.1021/acs.analchem.0c00453] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The global prevalence of antibiotic-resistant bacteria has increased the risk of dangerous infections, requiring rapid diagnosis and treatment. The standard method for diagnosis of bacterial infections remains dependent on slow culture-based methods, carried out in central laboratories, not easily extensible to rapid identification of organisms, and thus not optimal for timely treatments at the point-of-care (POC). Here, we demonstrate rapid detection of bacteria by combining electrochemical immunoassays (EC-IA) for pathogen identification with confirmatory quantitative mass spectral immunoassays (MS-IA) based on signal ion emission reactive release amplification (SIERRA) nanoparticles with unique mass labels. This diagnostic method uses compatible reagents for all involved assays and standard fluidics for automatic sample preparation at POC. EC-IA, based on alkaline phosphatase-conjugated pathogen-specific antibodies, quantified down to 104 bacteria per sample when testing Staphylococcus aureus, Escherichia coli, and Pseudomonas aeruginosa lysates. EC-IA quantitation was also obtained for wound samples. The MS-IA using nanoparticles against S. aureus, E. coli, Klebsiella pneumoniae, and P. aeruginosa allowed selective quantitation of ∼105 bacteria per sample. This method preserves bacterial cells allowing extraction and amplification of 16S ribosomal RNA genes and antibiotic resistance genes, as was demonstrated through identification and quantitation of two strains of E. coli, resistant and nonresistant due to β-lactamase cefotaximase genes. Finally, the combined immunoassays were compared against culture using remnant deidentified patient urine samples. The sensitivities for these immunoassays were 83, 95, and 92% for the prediction of S. aureus, P. aeruginosa, and E. coli or K. pneumoniae positive culture, respectively, while specificities were 85, 92, and 97%. The diagnostic platform presented here with fluidics and combined immunoassays allows for pathogen isolation within 5 min and identification in as little as 15 min to 1 h, to help guide the decision for additional testing, optimally only on positive samples, such as multiplexed or resistance gene assays (6 h).
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Affiliation(s)
- Michael Pugia
- Bioanalytical Technologies, Indiana Biosciences Research Institute (IBRI), 1345 W. 16th Street, Suite #300, Indianapolis, Indiana 46202, United States
| | - Tiyash Bose
- Bioanalytical Technologies, Indiana Biosciences Research Institute (IBRI), 1345 W. 16th Street, Suite #300, Indianapolis, Indiana 46202, United States
| | - Marco Tjioe
- Bioanalytical Technologies, Indiana Biosciences Research Institute (IBRI), 1345 W. 16th Street, Suite #300, Indianapolis, Indiana 46202, United States
| | - Dylan Frabutt
- Bioanalytical Technologies, Indiana Biosciences Research Institute (IBRI), 1345 W. 16th Street, Suite #300, Indianapolis, Indiana 46202, United States
| | - Zane Baird
- Bioanalytical Technologies, Indiana Biosciences Research Institute (IBRI), 1345 W. 16th Street, Suite #300, Indianapolis, Indiana 46202, United States
| | - Zehui Cao
- Bioanalytical Technologies, Indiana Biosciences Research Institute (IBRI), 1345 W. 16th Street, Suite #300, Indianapolis, Indiana 46202, United States
| | - Anna Vorsilak
- Bioanalytical Technologies, Indiana Biosciences Research Institute (IBRI), 1345 W. 16th Street, Suite #300, Indianapolis, Indiana 46202, United States
| | - Ian McLuckey
- Bioanalytical Technologies, Indiana Biosciences Research Institute (IBRI), 1345 W. 16th Street, Suite #300, Indianapolis, Indiana 46202, United States
| | - M Regina Barron
- Bioanalytical Technologies, Indiana Biosciences Research Institute (IBRI), 1345 W. 16th Street, Suite #300, Indianapolis, Indiana 46202, United States
- Department of Chemistry & Chemical Biology, Indiana University-Purdue University Indianapolis (IUPUI), 402 N Blackford Street, LD326, Indianapolis, Indiana 46202, United States
| | - Monica Barron
- Bioanalytical Technologies, Indiana Biosciences Research Institute (IBRI), 1345 W. 16th Street, Suite #300, Indianapolis, Indiana 46202, United States
- Department of Chemistry & Chemical Biology, Indiana University-Purdue University Indianapolis (IUPUI), 402 N Blackford Street, LD326, Indianapolis, Indiana 46202, United States
| | - Gerald Denys
- Division of Clinical Microbiology, Department of Pathology and Laboratory Medicine, IU Health Pathology Laboratory, Indiana University School of Medicine, 350 W. 11th Street, Room 6027B, Indianapolis, Indiana 46202, United States
| | - Jessica Carpenter
- Division of Clinical Microbiology, Department of Pathology and Laboratory Medicine, IU Health Pathology Laboratory, Indiana University School of Medicine, 350 W. 11th Street, Room 6027B, Indianapolis, Indiana 46202, United States
| | - Amitava Das
- Indiana Center for Regenerative Medicine and Engineering (ICRME), IU Health Comprehensive Wound Center, Department of Surgery, Indiana University School of Medicine, 975 W. Walnut Street, Suite #444, Indianapolis, Indiana 46202,United States
| | - Karamjeet Kaur
- Indiana Center for Regenerative Medicine and Engineering (ICRME), IU Health Comprehensive Wound Center, Department of Surgery, Indiana University School of Medicine, 975 W. Walnut Street, Suite #444, Indianapolis, Indiana 46202,United States
| | - Sashwati Roy
- Indiana Center for Regenerative Medicine and Engineering (ICRME), IU Health Comprehensive Wound Center, Department of Surgery, Indiana University School of Medicine, 975 W. Walnut Street, Suite #444, Indianapolis, Indiana 46202,United States
| | - Chandan K Sen
- Indiana Center for Regenerative Medicine and Engineering (ICRME), IU Health Comprehensive Wound Center, Department of Surgery, Indiana University School of Medicine, 975 W. Walnut Street, Suite #444, Indianapolis, Indiana 46202,United States
| | - Frédérique Deiss
- Department of Chemistry & Chemical Biology, Indiana University-Purdue University Indianapolis (IUPUI), 402 N Blackford Street, LD326, Indianapolis, Indiana 46202, United States
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13
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Yang XX, Tian TT, Qiao W, Tian Z, Yang M, Zhang Y, Li JY. Prevalence and characterization of oxazolidinone and phenicol cross-resistance gene optrA in enterococci obtained from anaerobic digestion systems treating swine manure. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 267:115540. [PMID: 32898731 DOI: 10.1016/j.envpol.2020.115540] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 08/21/2020] [Accepted: 08/24/2020] [Indexed: 06/11/2023]
Abstract
The use of the phenicol antibiotic florfenicol in livestock can select for the optrA gene, which also confers resistance to the critically important oxazolidinone antibiotic linezolid. However, the occurrence and dissemination of florfenicol and linezolid cross-resistance genes in anaerobic treatment systems for livestock waste are unknown. Herein, the phenotypes and genotypes (optrA, fexA, fexB, and cfr) of florfenicol and linezolid cross-resistance were investigated in 339 enterococci strains isolated from lab- and full-scale mesophilic anaerobic digestion systems treating swine waste. It was found that optrA, fexA, and fexB were frequently detected in isolated enterococci in both systems by PCR screening, whereas cfr was not detected. The most abundant gene was optrA, which was detected in 73.5% (n = 50) and 38.9% (n = 23) of enterococci isolates in the full-scale influent and effluent, respectively. Most strains carried more than two resistance genes, and the average percentage of co-occurrence of optrA/fexA was 16.6%. Based on minimum inhibitory concentrations of the enterococci strain phenotypes, 85.7%, 77.5%, and 77.5% of strains in influent were resistant to chloramphenicol, florfenicol, and linezolid, respectively, while 56.3%, 65.2%, and 13% in the effluent isolates were found, respectively, which was consistent with the genotype results. The phenotypes and genotypes of florfenicol and linezolid resistance were relative stable in the enterococci isolated from the influent and effluent in lab-scale anaerobic digestion system. The findings signify the enterococci isolates harboring the optrA gene remained in effluents of both full- and lab-scale swine waste anaerobic digestion system; hence, effective management strategies should be implemented to prevent the discharge of antibiotic resistance from the livestock waste treatment systems.
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Affiliation(s)
- Xiao-Xiao Yang
- Department of Municipal and Environmental Engineering, Beijing Jiaotong University, Beijing, 100044, China; State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Tian-Tian Tian
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Wei Qiao
- College of Engineering, China Agricultural University, Beijing, 100083, China
| | - Zhe Tian
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Min Yang
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Yu Zhang
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, 100085, China.
| | - Jiu-Yi Li
- Department of Municipal and Environmental Engineering, Beijing Jiaotong University, Beijing, 100044, China.
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14
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Bernabeu S, Ratnam KC, Boutal H, Gonzalez C, Vogel A, Devilliers K, Plaisance M, Oueslati S, Malhotra-Kumar S, Dortet L, Fortineau N, Simon S, Volland H, Naas T. A Lateral Flow Immunoassay for the Rapid Identification of CTX-M-Producing Enterobacterales from Culture Plates and Positive Blood Cultures. Diagnostics (Basel) 2020; 10:diagnostics10100764. [PMID: 32998433 PMCID: PMC7600033 DOI: 10.3390/diagnostics10100764] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 09/24/2020] [Accepted: 09/27/2020] [Indexed: 02/07/2023] Open
Abstract
We have developed a lateral flow immunoassay (LFIA), named NG-Test CTX-M MULTI (NG-Test), to detect group 1, 2, 8, 9, 25 CTX-M producers from agar plates and from positive blood cultures in less than 15 min. The NG-Test was validated retrospectively on 113 well-characterized enterobacterial isolates, prospectively on 102 consecutively isolated ESBL-producers from the Bicêtre hospital and on 100 consecutive blood cultures positive with a gram-negative bacilli (GNB). The NG-Test was able to detect all CTX-M producers grown on the different agar plates used in clinical microbiology laboratories. No false positive nor negative results were observed. Among the 102 consecutive ESBL isolates, three hyper mucous isolates showed an incorrect migration leading to invalid results (no control band). Using an adapted protocol, the results could be validated. The NG-Test detected 99/102 ESBLs as being CTX-Ms. Three SHV producers were not detected. Among the 100 positive blood cultures with GNB tested 10/11 ESBL-producers were detected (8 CTX-M-15, 2 CTX-M-27). One SHV-2-producing-E. cloacae was missed. The NG-Test CTX-M MULTI showed 100% sensitivity and specificity with isolates cultured on agar plates and was able to detect 98% of the ESBL-producers identified in our clinical setting either from colonies or from positive blood cultures.
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Affiliation(s)
- Sandrine Bernabeu
- Team Resist, UMR1184, School of Medicine of Université Paris-Saclay—INSERM—CEA, LabEx Lermit, 94276 Le Kremlin-Bicêtre, France; (S.B.); (S.O.); (L.D.); (N.F.)
- Bacteriology-Hygiene Unit, APHP, Hôpital Bicêtre, 94270 Le Kremlin-Bicêtre, France; (K.C.R.); (C.G.)
| | | | - Hervé Boutal
- Service de Pharmacologie et Immunoanalyse (SPI), CEA, INRA, Laboratoire d’Etudes et de Recherches en Immunonalyse, Université Paris-Saclay, 91191 Gif-sur-Yvette, France; (H.B.); (A.V.); (K.D.); (M.P.); (S.S.); (H.V.)
| | - Camille Gonzalez
- Bacteriology-Hygiene Unit, APHP, Hôpital Bicêtre, 94270 Le Kremlin-Bicêtre, France; (K.C.R.); (C.G.)
| | - Anaïs Vogel
- Service de Pharmacologie et Immunoanalyse (SPI), CEA, INRA, Laboratoire d’Etudes et de Recherches en Immunonalyse, Université Paris-Saclay, 91191 Gif-sur-Yvette, France; (H.B.); (A.V.); (K.D.); (M.P.); (S.S.); (H.V.)
| | - Karine Devilliers
- Service de Pharmacologie et Immunoanalyse (SPI), CEA, INRA, Laboratoire d’Etudes et de Recherches en Immunonalyse, Université Paris-Saclay, 91191 Gif-sur-Yvette, France; (H.B.); (A.V.); (K.D.); (M.P.); (S.S.); (H.V.)
| | - Marc Plaisance
- Service de Pharmacologie et Immunoanalyse (SPI), CEA, INRA, Laboratoire d’Etudes et de Recherches en Immunonalyse, Université Paris-Saclay, 91191 Gif-sur-Yvette, France; (H.B.); (A.V.); (K.D.); (M.P.); (S.S.); (H.V.)
| | - Saoussen Oueslati
- Team Resist, UMR1184, School of Medicine of Université Paris-Saclay—INSERM—CEA, LabEx Lermit, 94276 Le Kremlin-Bicêtre, France; (S.B.); (S.O.); (L.D.); (N.F.)
- Bacteriology-Hygiene Unit, APHP, Hôpital Bicêtre, 94270 Le Kremlin-Bicêtre, France; (K.C.R.); (C.G.)
| | - Surbhi Malhotra-Kumar
- Laboratory of Medical Microbiology, Vaccine & Infectious Disease Institute, University of Antwerp, 2610 Antwerp, Belgium;
- Members of ESCMID Study Group for Antimicrobial Resistance Surveillance—ESGARS, Headquarter, 4010 Basel, Switzerland
| | - Laurent Dortet
- Team Resist, UMR1184, School of Medicine of Université Paris-Saclay—INSERM—CEA, LabEx Lermit, 94276 Le Kremlin-Bicêtre, France; (S.B.); (S.O.); (L.D.); (N.F.)
- Bacteriology-Hygiene Unit, APHP, Hôpital Bicêtre, 94270 Le Kremlin-Bicêtre, France; (K.C.R.); (C.G.)
- Associated French National Reference Center for Antibiotic Resistance: Carbapenemase-Producing Enterobacteriaceae, 94270 Le Kremlin-Bicêtre, France
| | - Nicolas Fortineau
- Team Resist, UMR1184, School of Medicine of Université Paris-Saclay—INSERM—CEA, LabEx Lermit, 94276 Le Kremlin-Bicêtre, France; (S.B.); (S.O.); (L.D.); (N.F.)
- Bacteriology-Hygiene Unit, APHP, Hôpital Bicêtre, 94270 Le Kremlin-Bicêtre, France; (K.C.R.); (C.G.)
- Associated French National Reference Center for Antibiotic Resistance: Carbapenemase-Producing Enterobacteriaceae, 94270 Le Kremlin-Bicêtre, France
| | - Stéphanie Simon
- Service de Pharmacologie et Immunoanalyse (SPI), CEA, INRA, Laboratoire d’Etudes et de Recherches en Immunonalyse, Université Paris-Saclay, 91191 Gif-sur-Yvette, France; (H.B.); (A.V.); (K.D.); (M.P.); (S.S.); (H.V.)
| | - Hervé Volland
- Service de Pharmacologie et Immunoanalyse (SPI), CEA, INRA, Laboratoire d’Etudes et de Recherches en Immunonalyse, Université Paris-Saclay, 91191 Gif-sur-Yvette, France; (H.B.); (A.V.); (K.D.); (M.P.); (S.S.); (H.V.)
| | - Thierry Naas
- Team Resist, UMR1184, School of Medicine of Université Paris-Saclay—INSERM—CEA, LabEx Lermit, 94276 Le Kremlin-Bicêtre, France; (S.B.); (S.O.); (L.D.); (N.F.)
- Bacteriology-Hygiene Unit, APHP, Hôpital Bicêtre, 94270 Le Kremlin-Bicêtre, France; (K.C.R.); (C.G.)
- Members of ESCMID Study Group for Antimicrobial Resistance Surveillance—ESGARS, Headquarter, 4010 Basel, Switzerland
- Associated French National Reference Center for Antibiotic Resistance: Carbapenemase-Producing Enterobacteriaceae, 94270 Le Kremlin-Bicêtre, France
- Service de Bactériologie, AP-HP, CHU de Bicêtre, 78 Rue du Général Leclerc, 94275 Le Kremlin-Bicêtre, France
- Correspondence: ; Tel.: +33-1-45-21-29-86
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15
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Ranaei MA, Shahraki-Zahedan S, Mohagheghi-Fard AH, Salimizand H, Ordoni R, Amini Y. Prevalence of the blaCTX-M and antibiotic resistance pattern among clinical isolates of Acinetobacter baumannii isolated from Zahedan, Southeast Iran. GENE REPORTS 2020. [DOI: 10.1016/j.genrep.2020.100626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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16
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Digital multiplex ligation assay for highly multiplexed screening of β-lactamase-encoding genes in bacterial isolates. Commun Biol 2020; 3:264. [PMID: 32451431 PMCID: PMC7248093 DOI: 10.1038/s42003-020-0980-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Accepted: 04/30/2020] [Indexed: 11/21/2022] Open
Abstract
Increasing incidence of antibiotic resistance in clinical and environmental settings calls for increased scalability in their surveillance. Current screening technologies are limited by the number of samples and genes that can easily be screened. We demonstrate here digital multiplex ligation assay (dMLA) as a low-cost targeted genomic detection workflow capable of highly-parallel screening of bacterial isolates for multiple target gene regions simultaneously. Here, dMLA is used for simultaneous detection of 1187 β-lactamase-encoding genes, including extended spectrum β-lactamase (ESBL) genes, in 74 bacterial isolates. We demonstrate dMLA as a light-weight and cost-efficient workflow which provides a highly scalable tool for antimicrobial resistance surveillance and is also adaptable to genetic screening applications beyond antibiotic resistance. Tamminen et al. develop a digital multiplex ligation assay (dMLA) that enables the detection of bacterial isolates using probe hybridization and ligation-based assays with next-generation sequencing. Their method can be applied in high-throughput and affordable screening for antibiotic resistance.
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17
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Singh AS, Nayak BB, Kumar SH. High Prevalence of Multiple Antibiotic-Resistant, Extended-Spectrum β-Lactamase (ESBL)-Producing Escherichia coli in Fresh Seafood Sold in Retail Markets of Mumbai, India. Vet Sci 2020; 7:vetsci7020046. [PMID: 32316123 PMCID: PMC7356741 DOI: 10.3390/vetsci7020046] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 04/03/2020] [Accepted: 04/04/2020] [Indexed: 11/16/2022] Open
Abstract
In this study, fresh seafood in retail markets was investigated for the antibiotic susceptibility patterns of the faecal indicator Escherichia coli and distribution of important β-lactamase encoding genes. E. coli were isolated from 50 (37 fish and 13 shellfish) fresh seafood samples and studied with respect to the phenotypic and genotypic characters of antibiotic resistance. Of 475 E. coli isolates from fresh seafood, 71.58% exhibited extended-spectrum β-lactamase (ESBL)-positive phenotypes. A high percentage of isolates were resistant to indicator cephalosporins cefotaxime (95%), cefpodoxime (90.88%) and ceftazidime (90.29%). Relatively higher susceptibilities were recorded against imipenem (74.41%), cefoxitin (66.76%) and meropenem (51.18%). The multiple antibiotic resistance (MAR) index of 97.35% of the isolates was above 0.18. The ESBL genes blaCTX-M, blaSHV and blaTEM were detected in 62.37%, 23.35% and 2.6% of E. coli isolates, respectively. The ESBL-producing isolates also harboured the metallo-β-lactamase-encoding genes blaOXA (7.06%), blaNDM (4.42%) and blaVIM (0.88%). This study highlights the risk of dissemination of multidrug resistant E. coli in seafood consumer communities and also the need to improve the hygiene of the coastal waters, landing centres and the retail markets.
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18
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Khan H, Miao X, Liu M, Ahmad S, Bai X. Behavior of last resort antibiotic resistance genes (mcr-1 and bla NDM-1) in a drinking water supply system and their possible acquisition by the mouse gut flora. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 259:113818. [PMID: 31896482 DOI: 10.1016/j.envpol.2019.113818] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 12/05/2019] [Accepted: 12/13/2019] [Indexed: 06/10/2023]
Abstract
Mcr-1 and blaNDM-1 antibiotic resistance genes (ARGs) confer resistance to colistins and carbapenems, which are often antibiotics used as a last resort in tertiary care hospitals. Dissemination of these two ARGs in drinking water supply systems and their effect on healthy gut bacteria are poorly studied. In this study, the dissemination of mcr-1 and blaNDM-1 in a drinking water supply system, and their effect on the antibiotic resistance of mouse gut bacteria are explored. Metagenome analysis revealed that source water (Taipu river and Jinze reservoir) was polluted with ARGs. Mcr-1 and blaNDM-1 can be disseminated through the water distribution system. Even advanced water treatments (ozone and biological activated carbon (BAC)) could not effectively remove mcr-1 and blaNDM-1. Low concentrations of chloramine disinfectants in the water distribution system were not effective at limiting ARG abundance. Mobile genetic elements were also found to play a major role in the dissemination of ARGs via horizontal gene transfer (HGT) throughout the water supply system. Statistical analysis revealed that there was no effect of temperature on the abundance of mcr-1 and blaNDM-1 throughout the water supply system. A last resort ARG, mcr-1 can disseminate from drinking water to the healthy mouse gut. The presence of mcr-1 in a strain belonging to Enterococcus hirae, which is different from the strain belonging to the Bacillus cereus group isolated from drinking water, strongly supports the phenomena of HGT inside the gut. This research provides novel insights into the role of drinking water in disseminating ARGs to the gut and strongly suggests that drinking water may also play a major role apart from other factors known to be involved in the prevalence of last resort ARGs in the gut.
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Affiliation(s)
- Hira Khan
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, PR China
| | - Xiaocao Miao
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, PR China
| | - Mingkun Liu
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, PR China
| | - Shakeel Ahmad
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, PR China; Department of Biosciences, COMSATS University Islamabad, Pakistan
| | - Xiaohui Bai
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, PR China.
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Jiu Y, Meng X, Hong X, Huang Q, Wang C, Chen Z, Zhao L, Liu X, Lu Y, Li S. Prevalence and Characterization of Salmonella in Three Typical Commercial Pig Abattoirs in Wuhan, China. Foodborne Pathog Dis 2020; 17:620-627. [PMID: 32130028 DOI: 10.1089/fpd.2019.2737] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
This study was designed to investigate the prevalence and characteristics of Salmonella in three Chinese pig abattoirs (A, B, and C) in Wuhan city in 2016. Four types of pig samples were collected and cultured for Salmonella. Salmonella was detected from 329 samples among the 1440 tested (22.9%). There was no significant difference in the overall prevalence between the first visit and the second visit and among the three abattoirs. Rectal swabs (RS) exhibited a significantly higher prevalence than carcass swabs and pork. A total of 177 isolates were characterized by multilocus sequence typing, serotyping, and antimicrobial susceptibility testing. Among 17 sequence types (STs) and 13 serotypes detected, ST40, ST469, and ST34, corresponding to serovars Derby, Rissen, and Typhimurium, respectively, were predominant. The isolates from different abattoirs exhibited diverse ST distribution. The minimum inhibitory concentrations were determined using the microdilution broth method. Resistance to at least one of the antimicrobials was observed for 96.6% of the strains (171/177), and multidrug resistant (MDR) isolates accounted for 75.7% of the strains (134/177). The highest resistance proportion was for tetracycline (92.7%), and the lowest was for cefotaxime (14.1%). The isolates from abattoir A exhibited a significantly lower MDR proportion than those from other abattoirs (p < 0.05). The isolates recovered from RS and pork samples exhibited significantly higher MDR proportions than those recovered from carcass swab samples. Notably, among three predominant STs of isolates, the ST34 isolates showed the highest MDR proportion. In view of the high Salmonella prevalence and antimicrobial resistance, great attention must be paid to the monitoring and controlling of Salmonella in a full pork production chain.
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Affiliation(s)
- Yueguang Jiu
- Key Laboratory of Preventive Veterinary Medicine in Hubei Province, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Xianrong Meng
- Key Laboratory of Preventive Veterinary Medicine in Hubei Province, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Xuan Hong
- Key Laboratory of Preventive Veterinary Medicine in Hubei Province, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Qi Huang
- Key Laboratory of Preventive Veterinary Medicine in Hubei Province, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Chunfang Wang
- Wuhan Agricultural Comprehensive Law Enforcement Inspector Corps, Wuhan Municipal Agricultural and Rural Bureau, Wuhan, China
| | - Zhou Chen
- Wuhan Agricultural Comprehensive Law Enforcement Inspector Corps, Wuhan Municipal Agricultural and Rural Bureau, Wuhan, China
| | - Liangjin Zhao
- Animal Health Supervision Institute in Jiangxia District of Wuhan City, JiangXia District Agricultural and Rural University, Wuhan, China
| | - Xiaoying Liu
- Key Laboratory of Preventive Veterinary Medicine in Hubei Province, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Yangchao Lu
- Key Laboratory of Preventive Veterinary Medicine in Hubei Province, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Shaowen Li
- Key Laboratory of Preventive Veterinary Medicine in Hubei Province, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
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20
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Zhang CM, Xu LM, Mou X, Xu H, Liu J, Miao YH, Wang XC, Li X. Characterization and evolution of antibiotic resistance of Salmonella in municipal wastewater treatment plants. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 251:109547. [PMID: 31539702 DOI: 10.1016/j.jenvman.2019.109547] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Revised: 08/08/2019] [Accepted: 09/06/2019] [Indexed: 06/10/2023]
Abstract
The objective of this study was to investigate the evolution of antibiotic resistance phenotypes, antibiotic resistance genes (ARGs) and Class 1 integron of Salmonella in municipal wastewater treatment plants (WWTPs). A total of 221 Salmonella strains were isolated from different stages of three WWTPs. After the susceptibility testing, high frequency of resistance was observed for tetracycline (TET, 47.5% of isolates) and sulfamethoxazole (SMZ, 38.5%), followed by ampicillin (AMP, 25.3%), streptomycin (STP, 17.6%), chloramphenicol (CHL, 15.4%), and gentamicin (GEN, 11.3%). Low prevalence of resistance was detected for norfloxacin (0.45%), ciprofloxacin (0.9%), and cefotaxime (0.9%). The tetA and sul3 genes were most frequently detected among the Salmonella isolates. Statistically significant correlations among AMP, CHL, GEN, and STP resistances were observed. High detection frequencies of Class 1 integron were observed in double antibiotic-resistant and multiple-antibiotic-resistant (MAR) Salmonella, which were 94.3% and 85.7%, respectively. The proliferation of MAR Salmonella and transfer of ARGs occurred in WWTPs. Class 1 integron plays a crucial role in the evolution of MAR Salmonella during WWTPs.
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Affiliation(s)
- Chong-Miao Zhang
- Key Lab of Northwest Water Resource, Environment and Ecology, Ministry of Education, Shaanxi Key Laboratory of Environmental Engineering, International Science and Technology Cooperation Center for Urban Alternative Water Resources Development, Engineering Technology Research Center for Wastewater Treatment and Reuse, Shaanxi Province, School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China.
| | - Li-Mei Xu
- Key Lab of Northwest Water Resource, Environment and Ecology, Ministry of Education, Shaanxi Key Laboratory of Environmental Engineering, International Science and Technology Cooperation Center for Urban Alternative Water Resources Development, Engineering Technology Research Center for Wastewater Treatment and Reuse, Shaanxi Province, School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China; College of Water Conservancy and Civil Engineering, Shandong Agricultural University, Tai'an, 271018, China.
| | - Xiao Mou
- Shaanxi Institute for Food and Drug Control, Xi'an, 710065, China
| | - Huan Xu
- Key Lab of Northwest Water Resource, Environment and Ecology, Ministry of Education, Shaanxi Key Laboratory of Environmental Engineering, International Science and Technology Cooperation Center for Urban Alternative Water Resources Development, Engineering Technology Research Center for Wastewater Treatment and Reuse, Shaanxi Province, School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China
| | - Jing Liu
- Key Lab of Northwest Water Resource, Environment and Ecology, Ministry of Education, Shaanxi Key Laboratory of Environmental Engineering, International Science and Technology Cooperation Center for Urban Alternative Water Resources Development, Engineering Technology Research Center for Wastewater Treatment and Reuse, Shaanxi Province, School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China; School of Civil Engineering, Yulin University, Yulin, 719000, China
| | - Yan-Hui Miao
- Key Lab of Northwest Water Resource, Environment and Ecology, Ministry of Education, Shaanxi Key Laboratory of Environmental Engineering, International Science and Technology Cooperation Center for Urban Alternative Water Resources Development, Engineering Technology Research Center for Wastewater Treatment and Reuse, Shaanxi Province, School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China
| | - Xiaochang C Wang
- Key Lab of Northwest Water Resource, Environment and Ecology, Ministry of Education, Shaanxi Key Laboratory of Environmental Engineering, International Science and Technology Cooperation Center for Urban Alternative Water Resources Development, Engineering Technology Research Center for Wastewater Treatment and Reuse, Shaanxi Province, School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China
| | - Xiaochen Li
- College of Water Conservancy and Civil Engineering, Shandong Agricultural University, Tai'an, 271018, China
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21
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Zhu Z, Huang Q, Hong X, Chen X, Lu Y, Chen Z, Wang C, Meng X, Xu Q, Li S. Isolation and characterization of Salmonella in pork samples collected from retail and wholesale markets in each season from 2016 to 2018 in Wuhan, China. J Appl Microbiol 2019; 128:875-883. [PMID: 31710755 DOI: 10.1111/jam.14515] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 10/27/2019] [Accepted: 11/03/2019] [Indexed: 01/08/2023]
Abstract
AIMS To investigate the prevalence and characteristics of Salmonella in pork on sale in Wuhan, Central China. METHODS AND RESULTS A total of 4744 pork samples were collected from retail or wholesale markets in each season from 2016 to 2018. The samples showed an overall Salmonella prevalence of 19·54% (927/4744), among which the samples collected in 2017 (21·67%, 428/1975) possessed a significantly higher prevalence than those collected in 2016 (18·61%, 209/1123) (P = 0·047) or 2018 (17·51%, 290/1656) (P = 0·002), and the samples collected in winter showed the lowest prevalence (15·86%, 177/1116). The Salmonella prevalence was significantly higher among samples from retail markets (25·68%, 283/1102) than wholesale markets (17·68%, 644/3642) (P = 0·000). Antimicrobial resistance of 922 Salmonella strains was tested by determining the minimal inhibitory concentrations using a broth microdilution method. The strains revealed that 98·92% (912/922) were resistant to at least one of the antimicrobial agents, and 80·04% (738/922) were resistant to three or more antimicrobials (MDR). Resistance to sulfamethoxazole/trimethoprim (89·91%), tetracycline (87·20%) and ampicillin (71·69%) was predominant. The proportion of MDR strains in 2017 (93·62%, 396/423) was significantly higher than that in 2016 (63·16%, 132/209) (P = 0·000) or 2018 (69·66%, 202/290) (P = 0·000). No significant difference was observed in the proportions of MDR strains between wholesale markets (76·07%, 213/280) and retail markets (80·53%, 517/642) (P = 0·075). Multi-locus sequence typing for 554 of the isolates revealed 20 different sequence types (STs), among which ST40 (38·27%, 212/554), ST34 (18·41%, 102/554) and ST469 (14·46%, 79/554) were dominant. CONCLUSIONS A high risk of Salmonella prevalence and antimicrobial resistance was observed in pork in Wuhan. The risk varies between different sampling years, seasons and market types. SIGNIFICANCE AND IMPACT OF THE STUDY Providing baseline data on Salmonella contamination in pork on sale in Central China.
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Affiliation(s)
- Z Zhu
- Key Laboratory of Preventive Veterinary Medicine in Hubei Province, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, P.R. China
| | - Q Huang
- Key Laboratory of Preventive Veterinary Medicine in Hubei Province, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, P.R. China
| | - X Hong
- Key Laboratory of Preventive Veterinary Medicine in Hubei Province, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, P.R. China
| | - X Chen
- Key Laboratory of Preventive Veterinary Medicine in Hubei Province, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, P.R. China
| | - Y Lu
- Key Laboratory of Preventive Veterinary Medicine in Hubei Province, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, P.R. China
| | - Z Chen
- Wuhan Agricultural Comprehensive Law Enforcement Inspector Corps, Wuhan, P.R. China
| | - C Wang
- Wuhan Agricultural Comprehensive Law Enforcement Inspector Corps, Wuhan, P.R. China
| | - X Meng
- Key Laboratory of Preventive Veterinary Medicine in Hubei Province, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, P.R. China
| | - Q Xu
- Key Laboratory of Preventive Veterinary Medicine in Hubei Province, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, P.R. China
| | - S Li
- Key Laboratory of Preventive Veterinary Medicine in Hubei Province, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, P.R. China
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22
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Prevalence of Quinolone Resistance of Extended-Spectrum β-Lactamase-Producing Escherichia coli with ST131- fimH30 in a City Hospital in Hyogo, Japan. Int J Mol Sci 2019; 20:ijms20205162. [PMID: 31635210 PMCID: PMC6829264 DOI: 10.3390/ijms20205162] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2019] [Revised: 10/12/2019] [Accepted: 10/15/2019] [Indexed: 12/14/2022] Open
Abstract
Extended-spectrum β-lactamase (ESBL)-producing Escherichia coli isolates are known to tolerate superior quinolone antimicrobials compared with other antibacterial agents. Among the clones belonging to sequence type (ST) 131 by multilocus sequence typing, the involvement of the H30-Rx subclone has been reported worldwide with various fimH genes encoding type 1 pili. We investigated 83 isolates of ESBL-producing E. coli and performed antimicrobial susceptibility test, CH (fumC/fimH) ST131 by typing the specific PCR. Moreover, mutation analysis of genes involved in quinolone antibiotic resistance (gyrA and parC) and ESBL genotypes were determined. As a result, 54 of 83 isolates (65.1%) of CH40-30 clones corresponding to ST131-fimH30 were detected, and all were resistant to levofloxacin. Mutations associated with this resistance were common, and included S83L and D87N of gyrA and S80I and E84V of parC. Subclone analysis revealed a high proportion of fimH30-non-Rx (40 isolates, 74.1%). Each subclone was characterized by ESBL genotype, and the CTX-M-15 type was mainly seen for fimH30-Rx, with the CTX-M-14 type or CTX-M-27 type seen for fimH30-non-Rx. This study suggests that an increase in ESBL-producing quinolone-resistant E. coli in a city hospital in Hyogo, Japan, was caused by the spread of subclones belonging to fimH30-non-Rx of ST131.
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23
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Vergis J, Pathak R, Kumar M, Sunitha R, Malik SVS, Barbuddhe SB, Rawool DB. A comparative study for detection of extended spectrum β-lactamase (ESBL) production by Enteroaggregative Escherichia coli (EAEC) strains using double disc, nitrocefin and PCR assays. J Microbiol Methods 2018; 151:57-61. [PMID: 29913188 DOI: 10.1016/j.mimet.2018.06.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Revised: 06/14/2018] [Accepted: 06/15/2018] [Indexed: 11/26/2022]
Abstract
We explored and evaluated for the first time colorimetric nitrocefin assay in conjunction with the double disc test and PCR assay. We suggested the use of nitrocefin assay for rapid screening of ESBL-production by Enteroaggregative Escherichia coli.
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Affiliation(s)
- Jess Vergis
- Division of Veterinary Public Health, ICAR-Indian Veterinary Research Institute, Izatnagar 243 122, India
| | - Richa Pathak
- Division of Veterinary Public Health, ICAR-Indian Veterinary Research Institute, Izatnagar 243 122, India
| | - Manesh Kumar
- Division of Veterinary Public Health, ICAR-Indian Veterinary Research Institute, Izatnagar 243 122, India
| | - R Sunitha
- Division of Veterinary Public Health, ICAR-Indian Veterinary Research Institute, Izatnagar 243 122, India
| | - S V S Malik
- Division of Veterinary Public Health, ICAR-Indian Veterinary Research Institute, Izatnagar 243 122, India
| | - S B Barbuddhe
- ICAR-National Research Centre on Meat, Chengicherla, Hyderabad 500 092, India
| | - Deepak B Rawool
- Division of Veterinary Public Health, ICAR-Indian Veterinary Research Institute, Izatnagar 243 122, India.
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24
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Peker N, Rossen JWA, Deurenberg RH, Langereis PC, Raangs EGC, Kluytmans JA, Friedrich AW, Veenemans J, Sinha B. Evaluation of an Accelerated Workflow for Surveillance of ESBL (CTX-M)-Producing Escherichia coli Using Amplicon-Based Next-Generation Sequencing and Automated Analysis. Microorganisms 2018; 6:microorganisms6010006. [PMID: 29324655 PMCID: PMC5874620 DOI: 10.3390/microorganisms6010006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 01/05/2018] [Accepted: 01/09/2018] [Indexed: 12/27/2022] Open
Abstract
Outbreak management of extended spectrum β-lactamase (ESBL)-producing pathogens requires rapid and accurate diagnosis. However, conventional screening is slow and labor-intensive. The vast majority of the screened samples are negative and detection of non-outbreak-related resistant micro-organisms often complicates outbreak management. In a CTX-M-15-producing Escherichia coli outbreak, 149 fecal samples and rectal eSwabs were collected by a cross-sectional survey in a Dutch nursing home. Samples were processed by routine diagnostic methods. Retrospectively, ESBL-producing bacteria and resistance genes were detected directly from eSwab medium by an accelerated workflow without prior enrichment cultures by an amplicon-based next-generation sequencing (NGS) method, and culture. A total of 27 (18.1%) samples were positive in either test. Sensitivity for CTX-M detection was 96.3% for the phenotypic method and 85.2% for the NGS method, and the specificity was 100% for both methods, as confirmed by micro-array. This resulted in a positive predictive value (PPV) of 100% for both methods, and a negative predictive value (NPV) of 99.2% and 96.8% for the phenotypic method and the NGS method, respectively. Time to result was four days and 14 h for the phenotypic method and the NGS method, respectively. In conclusion, the sensitivity without enrichment shows promising results for further use of amplicon-based NGS for screening during outbreaks.
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Affiliation(s)
- Nilay Peker
- Department of Medical Microbiology, University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, The Netherlands.
| | - John W A Rossen
- Department of Medical Microbiology, University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, The Netherlands.
| | - Ruud H Deurenberg
- Department of Medical Microbiology, University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, The Netherlands.
| | - Paula C Langereis
- Department of Medical Microbiology, University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, The Netherlands.
| | - Erwin G C Raangs
- Department of Medical Microbiology, University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, The Netherlands.
| | - Jan A Kluytmans
- Laboratory for Microbiology and Infection Control, Amphia Hospital, 4818 CK Breda, The Netherlands.
| | - Alexander W Friedrich
- Department of Medical Microbiology, University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, The Netherlands.
| | - Jacobien Veenemans
- Laboratory for Microbiology and Infection Control, Amphia Hospital, 4818 CK Breda, The Netherlands.
| | - Bhanu Sinha
- Department of Medical Microbiology, University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, The Netherlands.
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25
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Chung B, Park C, Cho SY, Shin J, Shin S, Yim SH, Lee DG, Chung YJ. Multiplex identification of sepsis-causing Gram-negative pathogens from the plasma of infected blood. Electrophoresis 2017; 39:645-652. [PMID: 29193166 DOI: 10.1002/elps.201700405] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Accepted: 11/16/2017] [Indexed: 11/09/2022]
Abstract
Early and accurate detection of bacterial pathogens in the blood is the most crucial step for sepsis management. Gram-negative bacteria are the most common organisms causing severe sepsis and responsible for high morbidity and mortality. We aimed to develop a method for rapid multiplex identification of clinically important Gram-negative pathogens and also validated whether our system can identify Gram-negative pathogens with the cell-free plasm DNA from infected blood. We designed five MLPA probe sets targeting the genes specific to major Gram-negative pathogens (uidA and lacY for E. coli, ompA for A. baumannii, phoE for K. pneumoniae, and ecfX for P. aeruginosa) and one set targeting the CTX-M group 1 to identify the ESBL producing Gram-negative pathogens. All six target-specific peaks were clearly separated without any non-specific peaks in a multiplex reaction condition. The minimum detection limit was 100 fg of pathogen DNA. When we tested 28 Gram-negative clinical isolates, all of them were successfully identified without any non-specific peaks. To evaluate the clinical applicability, we tested seven blood samples from febrile patients. Three blood culture positive cases showed E. coli specific peaks, while no peak was detected in the other four culture negative samples. This technology can be useful for detection of major sepsis-causing, drug-resistant Gram-negative pathogens and also the major ESBL producing Gram-negatives from the blood of sepsis patients in a clinical setting. This system can help early initiation of effective antimicrobial treatment against Gram-negative pathogens for sepsis patients, which is very crucial for better treatment outcomes.
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Affiliation(s)
- Boram Chung
- Department of Microbiology, The Catholic University of Korea, College of Medicine, Seoul, Republic of Korea.,Precision Medicine Research Center, Integrated Research Center for Genome Polymorphism, The Catholic University of Korea, College of Medicine, Seoul, Republic of Korea
| | - Chulmin Park
- Vaccine Bio Research Institute, The Catholic University of Korea, College of Medicine, Seoul St. Mary's Hospital, Seoul, Republic of Korea
| | - Sung-Yeon Cho
- Vaccine Bio Research Institute, The Catholic University of Korea, College of Medicine, Seoul St. Mary's Hospital, Seoul, Republic of Korea.,Department of Internal Medicine, The Catholic University of Korea, College of Medicine, Seoul St. Mary's Hospital, Seoul, Republic of Korea
| | - Juyoun Shin
- Department of Microbiology, The Catholic University of Korea, College of Medicine, Seoul, Republic of Korea
| | - Sun Shin
- Department of Microbiology, The Catholic University of Korea, College of Medicine, Seoul, Republic of Korea.,Precision Medicine Research Center, Integrated Research Center for Genome Polymorphism, The Catholic University of Korea, College of Medicine, Seoul, Republic of Korea
| | - Seon-Hee Yim
- Precision Medicine Research Center, Integrated Research Center for Genome Polymorphism, The Catholic University of Korea, College of Medicine, Seoul, Republic of Korea
| | - Dong-Gun Lee
- Vaccine Bio Research Institute, The Catholic University of Korea, College of Medicine, Seoul St. Mary's Hospital, Seoul, Republic of Korea.,Department of Internal Medicine, The Catholic University of Korea, College of Medicine, Seoul St. Mary's Hospital, Seoul, Republic of Korea
| | - Yeun-Jung Chung
- Department of Microbiology, The Catholic University of Korea, College of Medicine, Seoul, Republic of Korea.,Precision Medicine Research Center, Integrated Research Center for Genome Polymorphism, The Catholic University of Korea, College of Medicine, Seoul, Republic of Korea
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26
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Amplification of Antimicrobial Resistance in Gut Flora of Patients Treated with Ceftriaxone. Antimicrob Agents Chemother 2017; 61:AAC.00473-17. [PMID: 28807914 DOI: 10.1128/aac.00473-17] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2017] [Accepted: 08/02/2017] [Indexed: 02/07/2023] Open
Abstract
Although antibacterial therapy has an impact on human intestinal flora and the emergence of resistant bacteria, its role in the amplification of antimicrobial resistance and the quantitative exposure-effect relationship is not clear. An observational prospective study was conducted to determine whether and how ceftriaxone exposure is related to amplification of resistance in non-intensive care unit (non-ICU) patients. Serial stool samples from 122 extended-spectrum β-lactamase-positive (ESBL+) hospitalized patients were analyzed by quantitative real-time PCR to quantify the resistant gene blaCTX-M Drug exposure was calculated for each patient by using a population pharmacokinetic model. Multi- and univariate regression and classification regression tree (CART) analyses were used to explore relationships between measures of exposure and amplification of blaCTX-M genes. Amplification of blaCTX-M was observed in 0% (0/11) of patients with no treatment and 33% (20/61) of patients treated with ceftriaxone. Stepwise regression analysis showed a significant association between amplification of blaCTX-M and the plasma area under the concentration-time curve from 0 to 24 h for the unbound fraction of the drug (fAUC0-24), the maximum concentration of drug in serum for the unbound fraction of the drug (fCmax), and the duration of ceftriaxone therapy. Using CART analysis, amplification of blaCTX-M was observed in 11/16 (69%) patients treated for >14 days and in 9/40 (23%) patients treated for ≤14 days (P = 0.0019). In the latter group, amplification was observed in 5/7 (71%) patients with an fAUC0-24 of ≥222 mg · h/liter and in 4/33 (12%) patients with lower drug exposures (P = 0.0033). A similar association was found for an fCmax of ≥30 mg/liter (63% versus 13%, P = 0.0079). A significant association was found between the amplification of blaCTX-M resistance genes and exposure to ceftriaxone. Both duration of treatment and degree of ceftriaxone exposure have a significant impact on the amplification of resistance genes. (The project described in this paper has been registered at ClinicalTrials.gov under identifier NCT01208519.).
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27
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The Changing Role of the Clinical Microbiology Laboratory in Defining Resistance in Gram-negatives. Infect Dis Clin North Am 2017; 30:323-345. [PMID: 27208762 DOI: 10.1016/j.idc.2016.02.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The evolution of resistance in Gram-negatives has challenged the clinical microbiology laboratory to implement new methods for their detection. Multidrug-resistant strains present major challenges to conventional and new detection methods. More rapid pathogen identification and antimicrobial susceptibility testing have been developed for use directly on specimens, including fluorescence in situ hybridization tests, automated polymerase chain reaction systems, microarrays, mass spectroscopy, next-generation sequencing, and microfluidics. Review of these methods shows the advances that have been made in rapid detection of resistance in cultures, but limited progress in direct detection from specimens.
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28
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Jiu Y, Zhu S, Khan SB, Sun M, Zou G, Meng X, Wu B, Zhou R, Li S. Phenotypic and Genotypic Resistance of Salmonella Isolates from Healthy and Diseased Pigs in China During 2008–2015. Microb Drug Resist 2017; 23:651-659. [DOI: 10.1089/mdr.2016.0132] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Yueguang Jiu
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, People's Republic of China
| | - Shun Zhu
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, People's Republic of China
| | - Sher Bahadar Khan
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, People's Republic of China
| | - Mengzhen Sun
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, People's Republic of China
| | - Geng Zou
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, People's Republic of China
| | - Xianrong Meng
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, People's Republic of China
| | - Bin Wu
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, People's Republic of China
| | - Rui Zhou
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, People's Republic of China
| | - Shaowen Li
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, People's Republic of China
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29
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Zhang C, Xu L, Wang X, Zhuang K, Liu Q. Effects of ultraviolet disinfection on antibiotic-resistantEscherichia colifrom wastewater: inactivation, antibiotic resistance profiles and antibiotic resistance genes. J Appl Microbiol 2017; 123:295-306. [DOI: 10.1111/jam.13480] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Revised: 04/20/2017] [Accepted: 04/25/2017] [Indexed: 12/01/2022]
Affiliation(s)
- C.M. Zhang
- School of Environmental and Municipal Engineering; Xi'an University of Architecture and Technology; Xi'an China
- International Science and Technology Cooperation Center for Urban Alternative Water Resources Development; Xi'an China
- Key Lab of Northwest Water Resource, Environment and Ecology; MOE; Xi'an University of Architecture and Technology; Xi'an China
- Engineering Technology Research Center for Wastewater Treatment and Reuse; Shaanxi Province Xi'an China
| | - L.M. Xu
- School of Environmental and Municipal Engineering; Xi'an University of Architecture and Technology; Xi'an China
- Key Lab of Northwest Water Resource, Environment and Ecology; MOE; Xi'an University of Architecture and Technology; Xi'an China
- Engineering Technology Research Center for Wastewater Treatment and Reuse; Shaanxi Province Xi'an China
| | - X.C. Wang
- School of Environmental and Municipal Engineering; Xi'an University of Architecture and Technology; Xi'an China
- International Science and Technology Cooperation Center for Urban Alternative Water Resources Development; Xi'an China
- Key Lab of Northwest Water Resource, Environment and Ecology; MOE; Xi'an University of Architecture and Technology; Xi'an China
- Engineering Technology Research Center for Wastewater Treatment and Reuse; Shaanxi Province Xi'an China
| | - K. Zhuang
- School of Environmental and Municipal Engineering; Xi'an University of Architecture and Technology; Xi'an China
- Key Lab of Northwest Water Resource, Environment and Ecology; MOE; Xi'an University of Architecture and Technology; Xi'an China
| | - Q.Q. Liu
- School of Environmental and Municipal Engineering; Xi'an University of Architecture and Technology; Xi'an China
- Key Lab of Northwest Water Resource, Environment and Ecology; MOE; Xi'an University of Architecture and Technology; Xi'an China
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30
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Abdallah HM, Alnaiemi N, Reuland EA, Wintermans BB, Koek A, Abdelwahab AM, Samy A, Abdelsalam KW, Vandenbroucke-Grauls CMJE. Fecal carriage of extended-spectrum β-lactamase- and carbapenemase-producing Enterobacteriaceae in Egyptian patients with community-onset gastrointestinal complaints: a hospital -based cross-sectional study. Antimicrob Resist Infect Control 2017. [PMID: 28630686 PMCID: PMC5470242 DOI: 10.1186/s13756-017-0219-7] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Objectives The aim of this study was to determine the prevalence of extended-spectrum β-lactamase (ESBL) and carbapenemase production among Enterobacteriaceae isolated from ambulatory patients with gastrointestinal complaints admitted to El-Ahrar General Hospital, Zagazig, Egypt in the period between January 2013 and May 2013. Methods One hundred and thirteen Enterobacteriaceae isolates were recovered from 100 consecutive Egyptian patients with community–onset gastrointestinal complaints. The fecal samples were plated directly on selective EbSA-ESBL Screening Agar and on MacConkey agar. Isolate identification was performed with matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF-MS). Screening for ESBLs and carbapenemases production was done by both the automated VITEK®2 system with AST N198 and by disk diffusion method. Real-time PCR and sequencing were used to characterize the resistance genes. Phylogroups of the E. coli isolates were determined by a triplex PCR-based method. Results Of 100 patients screened for fecal colonization with extended-spectrum β-lactamase -producing Enterobacteriaceae (ESBL-E) and carbapenemase- producing Enterobacteriaceae (CPE), 68 were colonized with ESBL-E whereas five patients were positive for CPE. One hundred and thirteen Enterobacterceae isolates were recovered from 100 fecal samples, they belonged to E. coli (n = 72), Klebsiella pneumoniae (n = 23), Enterobacter cloacae(n = 3), Salmonella spp. (n = 1) and other Enterobacterceae isolates (n = 14). The blaCTX-M gene was detected in 89.04% (65/73) of the ESBL-producing Enterobacteriaceae, whereas blaSHV and blaTEM were detected in 30.14% (22/73) and 19.18% (14/73) respectively. Three out of 5 carbapenem-resistant isolates harbored New Delhi metallo-beta-lactamase (NDM) and 2 produced Verona integron-encoded metallo- beta -lactamase (VIM). Twenty-two (47.83%) of the ESBL positive isolates were multidrug resistant (MDR). Phylogenetic analysis showed that, of the 51 ESBL-EC isolates, 17 belonged to group B2, 13 to group D, 11 to group A and 10 to group B1. Conclusions Nearly two-thirds of the Enterobacteriaceae isolates recovered from feces of ambulatory patients with community–onset gastrointestinal complaints admitted to El-Ahrar General Hospital, Zagazig, Egypt were ESBL producers and one in every 20 patients included in our study was colonized by carbapenemase-producing Enterobacteriaceae. These high colonization rates are worrying, therefore prudent antimicrobial use should be adopted in Egyptian community settings.
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Affiliation(s)
- H M Abdallah
- Medical Microbiology and Infection Control, VU University Medical Center, Amsterdam, The Netherlands.,Department of Microbiology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - N Alnaiemi
- Medical Microbiology and Infection Control, VU University Medical Center, Amsterdam, The Netherlands.,Laboratory for Medical Microbiology and Public Health, Hengelo, The Netherlands.,Department of Microbiology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - E A Reuland
- Medical Microbiology and Infection Control, VU University Medical Center, Amsterdam, The Netherlands
| | - B B Wintermans
- Medical Microbiology and Infection Control, VU University Medical Center, Amsterdam, The Netherlands
| | - A Koek
- Medical Microbiology and Infection Control, VU University Medical Center, Amsterdam, The Netherlands
| | - A M Abdelwahab
- Department of Microbiology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - A Samy
- National Laboratory for Veterinary Quality Control on Poultry Production, Animal Health Research Institute, Dokki, Giza, Egypt
| | - K W Abdelsalam
- Department of Virology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
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31
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Bagus Wasito E, Shigemura K, Osawa K, Fardah A, Kanaida A, Raharjo D, Kuntaman K, Hadi U, Harijono S, Marto Sudarmo S, Nakamura T, Shibayama K, Fujisawa M, Shirakawa T. Antibiotic Susceptibilities and Genetic Characteristics of Extended-Spectrum Beta-Lactamase-Producing Escherichia coli Isolates from Stools of Pediatric Diarrhea Patients in Surabaya, Indonesia. Jpn J Infect Dis 2016; 70:378-382. [PMID: 28003592 DOI: 10.7883/yoken.jjid.2016.234] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The purpose of this study was to investigate extended-spectrum beta-lactamase (ESBL)-producing Escherichia coli isolates from pediatric (aged 0 to 3 years) diarrhea patients in Surabaya, Indonesia, where this kind of survey is rare; our study included assessment of their antibiotic susceptibilities, as well as ESBL typing, multilocus sequence typing (MLST), and diarrheagenic E. coli (DEC)-typing. ESBL-producing E. coli were detected in 18.8% of all the samples. Many ESBL-producing E. coli had significantly lower susceptibility to gentamicin (p < 0.0001) and the quinolones nalidixic acid (p=0.004) and ciprofloxacin (p < 0.0001) than non-producers. In ESBL-producing E. coli, 84.0% of strains expressed CTX-M-15 alone or in combination with other ESBL types. MLST revealed that 24.0% of ESBL-producers had sequence type 617, all of which expressed the CTX-M-15 gene; we also detected expression of 3 DEC-related genes: 2 enteroaggregative E. coli genes and 1 enteropathogenic E. coli gene. In conclusion, CTX-M-15-type ESBL-producing E. coli ST617 appear to have spread to Indonesia.
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Affiliation(s)
- Eddy Bagus Wasito
- Department of Microbiology, Faculty of Medicine, Airlangga University/Dr. Soetomo Hospital.,Institute of Tropical Disease, Airlangga University
| | - Katsumi Shigemura
- Department of Urology, Kobe University Graduate School of Medicine.,Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University.,Division of Infectious Diseases, Department of International Health, Kobe University Graduate School of Health Science
| | - Kayo Osawa
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University.,Division of Infectious Diseases, Department of International Health, Kobe University Graduate School of Health Science
| | - Alpha Fardah
- Department of Pediatrics, Faculty of Medicine, Airlangga University
| | - Akiho Kanaida
- Division of Infectious Diseases, Department of International Health, Kobe University Graduate School of Health Science
| | - Dadik Raharjo
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University.,Institute of Tropical Disease, Airlangga University
| | - K Kuntaman
- Department of Microbiology, Faculty of Medicine, Airlangga University/Dr. Soetomo Hospital.,Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University
| | - Usman Hadi
- Department of Internal Medicine, Faculty of Medicine, Airlangga University/Dr. Soetomo Hospital
| | - Sugeng Harijono
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University.,Institute of Tropical Disease, Airlangga University
| | | | | | - Keigo Shibayama
- Department of Bacteriology II, National Institute of Infectious Diseases
| | - Masato Fujisawa
- Department of Urology, Kobe University Graduate School of Medicine
| | - Toshiro Shirakawa
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University.,Center for Infectious Diseases, Kobe University Graduate School of Medicine
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Evaluation of a Multiplex PCR Assay To Rapidly Detect Enterobacteriaceae with a Broad Range of β-Lactamases Directly from Perianal Swabs. Antimicrob Agents Chemother 2016; 60:6957-6961. [PMID: 27600053 DOI: 10.1128/aac.01458-16] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Accepted: 09/01/2016] [Indexed: 11/20/2022] Open
Abstract
We developed and evaluated multiplexed molecular beacon probes in a real-time PCR assay to identify prominent extended-spectrum-β-lactamase, plasmid-mediated AmpC β-lactamase (pAmpC) and carbapenemase genes directly from perianal swab specimens within 6 h. We evaluated this assay on 158 perianal swabs collected from hematopoietic stem cell transplant recipients and found that this assay was highly sensitive and specific for detection of CTX-M-, pAmpC-, and KPC-producing Enterobacteriaceae compared to culture on chromogenic agar.
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Cimmino T, Le Page S, Raoult D, Rolain JM. Contemporary challenges and opportunities in the diagnosis and outbreak detection of multidrug-resistant infectious disease. Expert Rev Mol Diagn 2016; 16:1163-1175. [PMID: 27690721 DOI: 10.1080/14737159.2016.1244005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
INTRODUCTION The dissemination of multi-drug resistant bacteria (MDRB) has become a major public health concern worldwide because of the increase in infections caused by MDRB, the difficulty in treating them, and expenditures in patient care. Areas covered: We have reviewed challenges and contemporary opportunities for rapidly confronting infections caused by MDRB in the 21st century, including surveillance, detection, identification of resistance mechanisms, and action steps. Expert commentary: In this context, the first critical point for clinical microbiologists is to be able to rapidly detect an abnormal event, an outbreak and/or the spread of a MDRB with surveillance tools so that healthcare policies and therapies adapted to a new stochastic event that will certainly occur again in the future can be implemented.
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Affiliation(s)
- Teresa Cimmino
- a URMITE UM 63 CNRS 7278 IRD 198 INSERM U1905, IHU Méditerranée Infection, Faculté de Médecine et de Pharmacie , Aix-Marseille University , Marseille , France
| | - Stéphanie Le Page
- a URMITE UM 63 CNRS 7278 IRD 198 INSERM U1905, IHU Méditerranée Infection, Faculté de Médecine et de Pharmacie , Aix-Marseille University , Marseille , France
| | - Didier Raoult
- a URMITE UM 63 CNRS 7278 IRD 198 INSERM U1905, IHU Méditerranée Infection, Faculté de Médecine et de Pharmacie , Aix-Marseille University , Marseille , France
| | - Jean-Marc Rolain
- a URMITE UM 63 CNRS 7278 IRD 198 INSERM U1905, IHU Méditerranée Infection, Faculté de Médecine et de Pharmacie , Aix-Marseille University , Marseille , France
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Li S, Zhao M, Liu J, Zhou Y, Miao Z. Prevalence and Antibiotic Resistance Profiles of Extended-Spectrum β-Lactamase-Producing Escherichia coli Isolated from Healthy Broilers in Shandong Province, China. J Food Prot 2016; 79:1169-73. [PMID: 27357036 DOI: 10.4315/0362-028x.jfp-16-025] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Food-producing animals carrying extended-spectrum β-lactamase-producing Escherichia coli (ESBL-EC) have posed a potential threat to human and animal health. However, information regarding ESBL-EC in the intensive broiler breeding areas of Shandong Province, People's Republic of China, is very limited. The goal of our study was to investigate the prevalence and drug resistance characteristics of ESBL-EC in healthy broilers from Shandong Province. A total of 142 ESBL-EC isolates were collected from four prefectures in Shandong Province from October 2014 to February 2015. ESBL-EC isolates were frequently detected (142 of 160 samples, 88.8%) in healthy broilers. Antibiotic susceptibility testing showed that all 142 ESBL-EC isolates were resistant to ampicillin, piperacillin, and cefazolin but were sensitive to imipenem and meropenem. All ESBL-EC isolates carried one or more of the bla genes, in which blaCTX-M, blaTEM-1, and blaSHV-5 genes were identified in 142, 106, and 5 isolates, respectively. The blaCTX-M gene includes blaCTX-M-15 (56), blaCTX-M-65 (42), blaCTX-M-55 (36), blaCTX-M-14 (21), blaCTX-M-79 (1), blaCTX-M-3 (1), blaCTX-M-123 (1), and blaCTX-M-132 (1). In addition, 17 ESBL-EC isolates cocarried the genes of the CTX-M-1 and CTX-M-9 groups. Our findings indicate that healthy broiler flocks in Shandong Province in China are an important reservoir for ESBL-EC, with blaCTX-M and blaTEM-1 being the prevalent resistance genes identified.
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Affiliation(s)
- Song Li
- College of Basic Medicine, Taishan Medical University, Tai'an 271000, People's Republic of China
| | - Miaomiao Zhao
- Taishan Vocational College of Nursing, Tai'an 271000, People's Republic of China
| | - Junhe Liu
- Animal Sanitation Supervision Bureau of Zibo, Zhangdian 255000, People's Republic of China
| | - Yufa Zhou
- Disease Controlling Center, Veterinary Bureau of Daiyue, Tai'an 271000, People's Republic of China
| | - Zengmin Miao
- College of Life Sciences, Taishan Medical University, Tai'an 271000, People's Republic of China.
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Tekiner İH, Özpınar H. Occurrence and characteristics of extended spectrum beta-lactamases-producing Enterobacteriaceae from foods of animal origin. Braz J Microbiol 2016; 47:444-51. [PMID: 26991276 PMCID: PMC4874675 DOI: 10.1016/j.bjm.2015.11.034] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Accepted: 11/12/2015] [Indexed: 01/08/2023] Open
Abstract
Presence of extended spectrum beta-lactamases (ESBL) in bacteria is a growing health concern of global significance. The local, regional, national, and international epidemiological studies for extended spectrum beta-lactamases-producing Enterobacteriaceae and their encoding genes in foods are still incomplete. The objective of this study was to determine the occurrence of extended spectrum beta-lactamases-producing Enterobacteriaceae and the characteristics of their encoding genes from a total of 250 samples of various foods of animal-origin (100 raw chicken meat, 100 raw cow milk, and 50 raw cow milk cheese) sold in Turkey. Overall, 55 isolates were positive as extended spectrum beta-lactamases-producing Enterobacteriaceae. The most prevalent extended spectrum beta-lactamases-producing strain were identified as Escherichia coli (80%), followed by Enterobacter cloacae (9.1%), Citrobacter braakii (5.5%), Klebsiella pneumoniae (3.6%), and Citrobacter werkmanii (1.8%) by Vitek® MS. The simultaneous production of extended spectrum beta-lactamases and AmpC was detected in five isolates (9.1%) in E. coli (80%) and E. cloacae (20%). The frequency rates of blaTEM, blaCTX-M, and blaSHV were 96.4%, 53.7%, and 34.5%, respectively. The co-existence of bla-genes was observed in 82% of extended spectrum beta-lactamases producers with a distribution of blaTEM & blaCTX-M (52.7%), blaTEM & blaSHV (20%), blaTEM & blaCTX-M & blaSHV (12.7%), and blaSHV & blaCTX-M (1.8%). The most prevalent variant of blaCTX-M clusters was defined as blaCTX-M-1 (97.2%), followed by blaCTX-M-8 (2.8%). In summary, the analysed foods were found to be posing a health risk for Turkish consumers due to contamination by Enterobacteriaceae with a diversity of extended spectrum beta-lactamases encoding genes.
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Affiliation(s)
- İsmail Hakkı Tekiner
- Department of Food Engineering, Istanbul Aydın University, Florya Campus, Sefaköy, Küçükçekmece, Istanbul, Turkey.
| | - Haydar Özpınar
- Department of Food Engineering, Istanbul Aydın University, Florya Campus, Sefaköy, Küçükçekmece, Istanbul, Turkey
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Deccache Y, Irenge LM, Ambroise J, Savov E, Marinescu D, Chirimwami RB, Gala JL. A qPCR and multiplex pyrosequencing assay combined with automated data processing for rapid and unambiguous detection of ESBL-producers Enterobacteriaceae. AMB Express 2015; 5:136. [PMID: 26260895 PMCID: PMC4531121 DOI: 10.1186/s13568-015-0136-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2015] [Accepted: 07/23/2015] [Indexed: 12/22/2022] Open
Abstract
Rapid and specific detection of extended-spectrum β-lactamase-producing (ESBL) bacteria is crucial both for timely antibiotic therapy when treating infected patients as well as for appropriate infection control measures aimed at curbing the spread of ESBL-producing isolates. Whereas a variety of phenotypic methods are currently available for ESBL detection, they remain time consuming and sometimes difficult to interpret while being also affected by a lack of sensitivity and specificity. Considering the longer turnaround time (TAT) of susceptibility testing and culture results, DNA-based ESBL identification would be a valuable surrogate for phenotypic-based methods. Putative ESBL-positive Enterobacteriaceae isolates (n = 330) from clinical specimen were prospectively collected in Bulgaria, Romania and Democratic Republic of Congo and tested in this study. All isolates were assessed for ESBL-production by the E-test method and those giving undetermined ESBL status were re-tested using the combination disk test. A genotypic assay successively combining qPCR detection of blaCTX-M, blaTEM and blaSHV genes with a multiplex pyrosequencing of blaTEM and blaSHV genes was developed in order to detect the most common ESBL-associated TEM and SHV single nucleotides polymorphisms, irrespective of their plasmid and/or chromosomal location. This assay was applied on all Enterobacteriaceae isolates (n = 330). Phenotypic and genotypic results matched in 324/330 (98.2%). Accordingly, real-time PCR combined with multiplex pyrosequencing appears to be a reliable and easy-to-perform assay with high-throughput identification and fast TAT (~5 h).
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Alyamani EJ, Khiyami MA, Booq RY, Alnafjan BM, Altammami MA, Bahwerth FS. Molecular characterization of extended-spectrum beta-lactamases (ESBLs) produced by clinical isolates of Acinetobacter baumannii in Saudi Arabia. Ann Clin Microbiol Antimicrob 2015; 14:38. [PMID: 26290183 PMCID: PMC4545919 DOI: 10.1186/s12941-015-0098-9] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Accepted: 08/07/2015] [Indexed: 01/11/2023] Open
Abstract
Background Acinetobacter baumannii is a common opportunistic pathogen that causes major nosocomial infections in hospitals. In this study, we hypothesized a high prevalence of A. baumanni ESBL (extended-spectrum beta-lactamase) among all collected isolates. Methods A. baumannii isolates (n = 107) from ICU (Intensive care unit) of local hospitals in Makkah were phenotypically and genotypically characterized. The identity and antibiotic susceptibility of A. baumannii strains were determined using the Vitek-2 system. The identified ESBL producers were further analyzed by PCR and sequencing followed by MLST typing. blaTEM, blaSHV, and the blaCTX-M-group genes 1, 2, 8, 9, and 25 were investigated. Furthermore, blaOXA51-like and blaOXA23-like genes were also examined in the carbapenem-resistant A. baumannii isolates. Results Our data indicated a high prevalence of A. baumannii ESBL producers among the collected strains. Of the 107 A. baumannii isolates, 94 % were found to be resistant to cefepime and ceftazidime, and aztreonam using the Vitek 2 system. The genes detected encoded TEM, OXA-51-like and OXA-23-like enzymes, and CTX-M-group proteins 1, 2, 8, 9, and 25. MLST typing identified eight sequence type (ST) groups. The most dominant STs were ST195 and ST557 and all of them belong to worldwide clonal complex (CC) 2. Conclusions This study has shown that there is a high prevalence of antimicrobial resistance in A. baumannii. The diversity of STs may suggest that new ESBL strains are constantly emerging. The molecular diversity of the ESBL genes in A. baumannii may have contributed to the increased antimicrobial resistance among all isolates.
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Affiliation(s)
- Essam J Alyamani
- Molecular Bacteriology, National Center for Biotechnology, King Abdulaziz City for Science and Technology, P.O. Box 6086, Riyadh, 11442, Saudi Arabia.
| | - Mohamed A Khiyami
- Molecular Bacteriology, National Center for Biotechnology, King Abdulaziz City for Science and Technology, P.O. Box 6086, Riyadh, 11442, Saudi Arabia.
| | - Rayan Y Booq
- Molecular Bacteriology, National Center for Biotechnology, King Abdulaziz City for Science and Technology, P.O. Box 6086, Riyadh, 11442, Saudi Arabia.
| | - Basel M Alnafjan
- Molecular Bacteriology, National Center for Biotechnology, King Abdulaziz City for Science and Technology, P.O. Box 6086, Riyadh, 11442, Saudi Arabia.
| | - Musaad A Altammami
- Molecular Bacteriology, National Center for Biotechnology, King Abdulaziz City for Science and Technology, P.O. Box 6086, Riyadh, 11442, Saudi Arabia.
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Abdallah HM, Reuland EA, Wintermans BB, al Naiemi N, Koek A, Abdelwahab AM, Ammar AM, Mohamed AA, Vandenbroucke-Grauls CMJE. Extended-Spectrum β-Lactamases and/or Carbapenemases-Producing Enterobacteriaceae Isolated from Retail Chicken Meat in Zagazig, Egypt. PLoS One 2015; 10:e0136052. [PMID: 26284654 PMCID: PMC4540287 DOI: 10.1371/journal.pone.0136052] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Accepted: 07/30/2015] [Indexed: 11/18/2022] Open
Abstract
OBJECTIVES The aim of the present study was to determine the prevalence and to characterize extended-spectrum β-lactamases- and/or carbapenemases-producing Enterobacteriaceae among Enterobacteriaceae isolated from retail chicken meat in Zagazig, Egypt. METHODS One hundred and six Enterobacteriaceae isolates were collected from retail chicken meat samples purchased in Zagazig, Egypt in 2013. Species identification was done by MALDI-TOF MS. Screening for ESBL-E was performed by inoculation of isolates recovered from meat samples onto the EbSA (Cepheid Benelux, Apeldoorn, the Netherlands) selective screening agar. ESBL production was confirmed by combination disc diffusion test with clavulanic acid (Rosco, Taastrup, Denmark). Carbapenemases production was confirmed with double disk synergy tests. Resistance genes were characterized by PCR with specific primers for TEM, SHV, and CTX-M and carbapenemases (KPC, NDM, OXA-48, IMP and VIM). PCR products of CTX-M genes were purified and sequenced. Phylogenetic grouping of E. coli was performed by a PCR-based method. RESULTS Of these 106 isolates 69 (65.09%) were ESBL producers. Twelve (11.32%) of these isolates were also phenotypically class B carbapenemases producer. TEM genes were detected in 61 (57.55%) isolates. 49 (46.23%) isolates harbored CTX-M genes, and 25 (23.58%) carried genes of the SHV family. All CPE belonged to the NDM group. The predominant CTX-M sequence type was CTX-M-15 (89.80%). The majority (80%) of the ESBL-EC belonged to low virulence phylogroups A and B1. CONCLUSIONS This is the first study from Egypt reporting high rates of ESBLs and carbapenemases (65.09% and 11.32%, respectively) in Enterobacteriaceae isolated from retail chicken meat. These results raise serious concerns about public health and food safety as retail meat could serve as a reservoir for these resistant bacteria which could be transferred to humans through the food chain.
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Affiliation(s)
- H. M. Abdallah
- Medical Microbiology and Infection Control, VU University Medical Center, Amsterdam, the Netherlands
- * E-mail:
| | - E. A. Reuland
- Medical Microbiology and Infection Control, VU University Medical Center, Amsterdam, the Netherlands
| | - B. B. Wintermans
- Medical Microbiology and Infection Control, VU University Medical Center, Amsterdam, the Netherlands
| | - N. al Naiemi
- Medical Microbiology and Infection Control, VU University Medical Center, Amsterdam, the Netherlands
- Laboratory for Medical Microbiology and Public Health, Hengelo, the Netherlands
- Microbiology and Infection Control, Ziekenhuisgroep Twente, Almelo, Amsterdam, the Netherlands
| | - A. Koek
- Medical Microbiology and Infection Control, VU University Medical Center, Amsterdam, the Netherlands
| | - A. M. Abdelwahab
- Department of Bacteriology, Mycology and Immunology, Faculty of Veterinary Medicine, Zagazig University, Egypt
| | - A. M. Ammar
- Department of Bacteriology, Mycology and Immunology, Faculty of Veterinary Medicine, Zagazig University, Egypt
| | - A. A. Mohamed
- Department of Bacteriology, Mycology and Immunology, Faculty of Veterinary Medicine, Zagazig University, Egypt
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Titilawo Y, Obi L, Okoh A. Antimicrobial resistance determinants of Escherichia coli isolates recovered from some rivers in Osun State, South-Western Nigeria: Implications for public health. THE SCIENCE OF THE TOTAL ENVIRONMENT 2015; 523:82-94. [PMID: 25862994 DOI: 10.1016/j.scitotenv.2015.03.095] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2014] [Revised: 03/18/2015] [Accepted: 03/22/2015] [Indexed: 06/04/2023]
Abstract
The inevitable development of resistance has sunk the great success achieved in the discovery of antimicrobial agents and dashed the hope of man in the recovery from infections and illnesses, as diseases and disease agents that were once thought to be controlled by antimicrobials are now re-emerging in new leagues resistance to therapy. A total of 300 PCR confirmed Escherichia coli isolates recovered from different river sources in Osun State, Nigeria were evaluated for their antibiogram profiling by the disc diffusion method and the resistant isolates were further profiled for their genotypic antimicrobial resistance determinants by polymerase chain reaction assays. Among the 20 antimicrobials selected from 10 families, resistance among sulfonamides, β-lactams and tetracyclines were found to be most frequent than phenicols and aminoglycosides with a noticeable increase in the number of multi-drug resistance ranging from three to nine antimicrobials. A total of 19 resistance determinants were assessed with their prevalence and distributions obtained as follows; [sulfonamides sulI (8%), sulII (41%)], [β-lactams; ampC 22%; blaTEM, (21%), and blaZ (18%),], [tetracyclines tetA (24%), tetB (23%), tetC (18%), tetD (78%), tetK (15%), and tetM, (10%)], [phenicols; catI (37%), catII (28%), and cmIA1 (19%)] and [aminoglycosides; aacC2 (8%), aphA1 (80%), aphA2 (80%), aadA (79%) and strA (38%)]. The Pearson chi-square exact test revealed many strong significant associations among ampC, blaTEM, blaZ and tetA genes with some determinants screened. The findings signify high increase in the prevalence of multidrug resistant E. coli isolates and resistance determinants indicating increased public health risks associated with the ingestion of waters from untreated sources. Hence, a necessity for safe water supply, provision of proper sanitation facilities and good surveillance programmes to monitor antimicrobial resistance patterns in water bodies.
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Affiliation(s)
- Yinka Titilawo
- SA-MRC Microbial Water Quality Monitoring Centre, University of Fort Hare, Alice 5700, South Africa; Applied and Environmental Microbiology Research Group, Department of Biochemistry and Microbiology, University of Fort Hare, Alice 5700, South Africa.
| | - Larry Obi
- SA-MRC Microbial Water Quality Monitoring Centre, University of Fort Hare, Alice 5700, South Africa; Applied and Environmental Microbiology Research Group, Department of Biochemistry and Microbiology, University of Fort Hare, Alice 5700, South Africa
| | - Anthony Okoh
- SA-MRC Microbial Water Quality Monitoring Centre, University of Fort Hare, Alice 5700, South Africa; Applied and Environmental Microbiology Research Group, Department of Biochemistry and Microbiology, University of Fort Hare, Alice 5700, South Africa
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Al-Bayssari C, Dabboussi F, Hamze M, Rolain JM. Detection of expanded-spectrum β-lactamases in Gram-negative bacteria in the 21st century. Expert Rev Anti Infect Ther 2015; 13:1139-58. [PMID: 26162631 DOI: 10.1586/14787210.2015.1066247] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Emerging β-lactamase-producing-bacteria (ESBL, AmpC and carbapenemases) have become a serious problem in our community due to their startling spread worldwide and their ability to cause infections which are difficult to treat. Diagnosis of these β-lactamases is of clinical and epidemiological interest. Over the past 10 years, several methods have been developed aiming to rapidly detect these emerging enzymes, thus preventing their rapid spread. In this review, we describe the range of screening and detection methods (phenotypic, molecular and other) for detecting these β-lactamases but also whole genome sequencing as a tool for detecting the genes encoding these enzymes.
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Affiliation(s)
- Charbel Al-Bayssari
- Laboratoire Microbiologie Santé et Environnement (LMSE), Centre Azm pour la Recherche en Biotechnologie et ses Applications, Ecole Doctorale de Sciences et de Technologie, Université Libanaise, Tripoli, Liban
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Abdallah HM, Wintermans BB, Reuland EA, Koek A, al Naiemi N, Ammar AM, Mohamed AA, Vandenbroucke-Grauls CMJE. Extended-Spectrum β-Lactamase- and Carbapenemase-Producing Enterobacteriaceae Isolated from Egyptian Patients with Suspected Blood Stream Infection. PLoS One 2015; 10:e0128120. [PMID: 26001049 PMCID: PMC4441433 DOI: 10.1371/journal.pone.0128120] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Accepted: 04/23/2015] [Indexed: 01/08/2023] Open
Abstract
Objectives The aim of the study was to investigate the prevalence of extended-spectrum β-lactamase and carbapenemase production among Enterobacteriaceae isolated from Egyptian patients with suspected blood stream infection. Methods Ninety-four Enterobacteriaceae blood culture isolates from Egyptian patients with suspected blood stream infection were collected, one isolate per patient. Identification of bacterial isolates was performed with MALDI-TOF (MS-based Vitek MS system, bioMerieux). Screening for ESBLs and carbapenemases production was done with the Vitek 2 system (bioMérieux). ESBL production was confirmed using the combined disk diffusion method for cefotaxime, ceftazidime, and cefepime, all with and without clavulanic acid (Rosco). Real-time PCR and sequencing were used to characterize the resistance genes. The phylogenetic groups of E. coli were identified by a PCR-based method. Results Of the 94 Enterobacteriaceae isolates 46 (48.93%) showed an ESBL phenotype. One Enterobacter spp isolate was ESBL-producer and meropenem-resistant. The genetic analysis showed that CTX-M was present in 89.13% (41/46) of the ESBL-producing Enterobacteriaceae, whereas TEM and SHV were detected in 56.52% (26/46) and 21.74% (10/46) respectively (47.83%) of the ESBL-producing isolates were multidrug resistant (MDR). Eleven out of 30 ESBL-producing E-coli isolates were assigned to phylogroup B2, followed by groups B1 (8 isolates), A (6 isolates) and D (5 isolates). Conclusions The high ESBL-E rates (48.93%) found in this study together with the identification of one carbapenem-resistant Enterobacter spp isolate is worrisome. Our results indicate that systems for monitoring and detection of ESBL-producing bacteria in Egyptian hospitals have to be established. Also strict hospital infection control policies with the restriction of the consumption of extended-spectrum cephalosporins are necessary.
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Affiliation(s)
- H. M. Abdallah
- Medical Microbiology and Infection Control, VU University Medical Center, Amsterdam, the Netherlands
- Department of Bacteriology, Mycology and Immunology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
- * E-mail:
| | - B. B. Wintermans
- Medical Microbiology and Infection Control, VU University Medical Center, Amsterdam, the Netherlands
| | - E. A. Reuland
- Medical Microbiology and Infection Control, VU University Medical Center, Amsterdam, the Netherlands
| | - A Koek
- Medical Microbiology and Infection Control, VU University Medical Center, Amsterdam, the Netherlands
| | - N. al Naiemi
- Medical Microbiology and Infection Control, VU University Medical Center, Amsterdam, the Netherlands
- Laboratory for Medical Microbiology and Public Health, Hengelo, the Netherlands
- Microbiology and Infection Control, Ziekenhuisgroep Twente, Almelo, Amsterdam, the Netherlands
| | - A. M. Ammar
- Department of Bacteriology, Mycology and Immunology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - A. A. Mohamed
- Department of Bacteriology, Mycology and Immunology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
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Effect of Resistance Mechanisms on the Inoculum Effect of Carbapenem in Klebsiella pneumoniae Isolates with Borderline Carbapenem Resistance. Antimicrob Agents Chemother 2015; 59:5014-7. [PMID: 25987630 DOI: 10.1128/aac.00533-15] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Accepted: 05/11/2015] [Indexed: 11/20/2022] Open
Abstract
We aimed to examine the effects of resistance mechanisms on several resistance phenotypes among carbapenem-resistant Klebsiella pneumoniae isolates with borderline carbapenem MICs. We compared carbapenemase-negative K. pneumoniae with carbapenemase-producing K. pneumoniae (CPKP) isolates with similar MICs. CPKP isolates exhibited a marked inoculum effect and were more resistant to the bactericidal effect of meropenem. This suggests that MIC measurements alone may not be sufficient in predicting the therapeutic efficacy of carbapenems against CPKP.
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Shaikh S, Fatima J, Shakil S, Rizvi SMD, Kamal MA. Antibiotic resistance and extended spectrum beta-lactamases: Types, epidemiology and treatment. Saudi J Biol Sci 2014; 22:90-101. [PMID: 25561890 DOI: 10.1016/j.sjbs.2014.08.002] [Citation(s) in RCA: 345] [Impact Index Per Article: 34.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2014] [Revised: 08/09/2014] [Accepted: 08/10/2014] [Indexed: 12/25/2022] Open
Abstract
Antibiotic resistance is a problem of deep scientific concern both in hospital and community settings. Rapid detection in clinical laboratories is essential for the judicious recognition of antimicrobial resistant organisms. Production of extended-spectrum β-lactamases (ESBLs) is a significant resistance-mechanism that impedes the antimicrobial treatment of infections caused by Enterobacteriaceae and is a serious threat to the currently available antibiotic armory. ESBLs are classified into several groups according to their amino acid sequence homology. Proper infection control practices and barriers are essential to prevent spread and outbreaks of ESBL producing bacteria. As bacteria have developed different strategies to counter the effects of antibiotics, the identification of the resistance mechanism may help in the discovery and design of new antimicrobial agents. The carbapenems are widely regarded as the drugs of choice for the treatment of severe infections caused by ESBL-producing Enterobacteriaceae, although comparative clinical trials are scarce. Hence, more expeditious diagnostic testing of ESBL-producing bacteria and the feasible modification of guidelines for community-onset bacteremia associated with different infections are prescribed.
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Affiliation(s)
| | - Jamale Fatima
- Department of Bio-engineering, Integral University, Lucknow 226026, India
| | - Shazi Shakil
- Department of Bio-engineering, Integral University, Lucknow 226026, India
| | | | - Mohammad Amjad Kamal
- King Fahd Medical Research Center, King Abdulaziz University, P.O. Box 80216, Jeddah 21589, Saudi Arabia ; Enzymoic, 7 Peterlee Pl, Hebersham, NSW 2770, Australia
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Development of a multiplex real-time PCR for the rapid detection of the predominant beta-lactamase genes CTX-M, SHV, TEM and CIT-type AmpCs in Enterobacteriaceae. PLoS One 2014; 9:e100956. [PMID: 25033234 PMCID: PMC4102473 DOI: 10.1371/journal.pone.0100956] [Citation(s) in RCA: 127] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2014] [Accepted: 06/02/2014] [Indexed: 01/22/2023] Open
Abstract
Beta-lactamase resistant bacteria and especially ESBL producing Enterobacteriaceae are an increasing problem worldwide. For this reason a major interest in efficient and reliable methods for rapid screening of high sample numbers is recognizable. Therefore, a multiplex real-time PCR was developed to detect the predominant class A beta-lactamase genes blaCTX-M, blaSHV, blaTEM and CIT-type AmpCs in a one-step reaction. A set of 114 Enterobacteriaceae containing previously identified resistance gene subtypes and in addition 20 undefined animal and environmental isolates were used for the validation of this assay. To confirm the accessibility in variable settings, the real-time runs were performed analogous in two different laboratories using different real-time cyclers. The obtained results showed complete accordance between the real-time data and the predetermined genotypes. Even if sequence analyses are further necessary for a comprehensive characterization, this method was proofed to be reliable for rapid screening of high sample numbers and therefore could be an important tool for e. g. epidemiological purposes or support infection control measures.
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Monteiro J, Widen RH, Pignatari AC, Kubasek C, Silbert S. Differentiation of Klebsiella pneumoniae carbapenemase (KPC) variants by pyrosequencing. J Microbiol Methods 2014; 100:42-5. [DOI: 10.1016/j.mimet.2014.02.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2014] [Revised: 02/26/2014] [Accepted: 02/26/2014] [Indexed: 10/25/2022]
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Radhouani H, Silva N, Poeta P, Torres C, Correia S, Igrejas G. Potential impact of antimicrobial resistance in wildlife, environment and human health. Front Microbiol 2014; 5:23. [PMID: 24550896 PMCID: PMC3913889 DOI: 10.3389/fmicb.2014.00023] [Citation(s) in RCA: 136] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2013] [Accepted: 01/14/2014] [Indexed: 11/13/2022] Open
Abstract
Given the significant spatial and temporal heterogeneity in antimicrobial resistance distribution and the factors that affect its evolution, dissemination, and persistence, it is important to highlight that antimicrobial resistance must be viewed as an ecological problem. Monitoring the resistance prevalence of indicator bacteria such as Escherichia coli and enterococci in wild animals makes it possible to show that wildlife has the potential to serve as an environmental reservoir and melting pot of bacterial resistance. These researchers address the issue of antimicrobial-resistant microorganism proliferation in the environment and the related potential human health and environmental impact.
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Affiliation(s)
- Hajer Radhouani
- Institute for Biotechnology and Bioengineering, Centre of Genomics and Biotechnology, University of Trás-os-Montes and Alto Douro Vila Real, Portugal ; Department of Genetics and Biotechnology, University of Trás-os-Montes and Alto Douro Vila Real, Portugal ; Animal and Veterinary Research Centre, University of Trás-os-Montes and Alto Douro Vila Real, Portugal ; Veterinary Science Department, University of Trás-os-Montes and Alto Douro Vila Real, Portugal
| | - Nuno Silva
- Animal and Veterinary Research Centre, University of Trás-os-Montes and Alto Douro Vila Real, Portugal
| | - Patrícia Poeta
- Animal and Veterinary Research Centre, University of Trás-os-Montes and Alto Douro Vila Real, Portugal ; Veterinary Science Department, University of Trás-os-Montes and Alto Douro Vila Real, Portugal
| | - Carmen Torres
- Biochemistry and Molecular Biology Area, University of La Rioja Logroño, Spain
| | - Susana Correia
- Institute for Biotechnology and Bioengineering, Centre of Genomics and Biotechnology, University of Trás-os-Montes and Alto Douro Vila Real, Portugal ; Department of Genetics and Biotechnology, University of Trás-os-Montes and Alto Douro Vila Real, Portugal ; Animal and Veterinary Research Centre, University of Trás-os-Montes and Alto Douro Vila Real, Portugal ; Veterinary Science Department, University of Trás-os-Montes and Alto Douro Vila Real, Portugal
| | - Gilberto Igrejas
- Institute for Biotechnology and Bioengineering, Centre of Genomics and Biotechnology, University of Trás-os-Montes and Alto Douro Vila Real, Portugal ; Department of Genetics and Biotechnology, University of Trás-os-Montes and Alto Douro Vila Real, Portugal
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Stein C, Makarewicz O, Pfeifer Y, Brandt C, Ramos JC, Klinger M, Pletz MW. Direct RNA-based detection and differentiation of CTX-M-type extended-spectrum β-lactamases (ESBL). PLoS One 2013; 8:e80079. [PMID: 24224038 PMCID: PMC3818264 DOI: 10.1371/journal.pone.0080079] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2013] [Accepted: 10/08/2013] [Indexed: 11/19/2022] Open
Abstract
The current global spread of multi-resistant Gram-negatives, particularly extended spectrum β-lactamases expressing bacteria, increases the likelihood of inappropriate empiric treatment of critically ill patients with subsequently increased mortality. From a clinical perspective, fast detection of resistant pathogens would allow a pre-emptive correction of an initially inappropriate treatment. Here we present diagnostic amplification-sequencing approach as proof of principal based on the fast molecular detection and correct discrimination of CTX-M-β-lactamases, the most frequent ESBL family. The workflow consists of the isolation of total mRNA and CTX-M-specific reverse transcription (RT), amplification and pyrosequencing. Due to the high variability of the CTX-M-β-lactamase-genes, degenerated primers for RT, qRT as well as for pyrosequencing, were used and the suitability and discriminatory performance of two conserved positions within the CTX-M genes were analyzed, using one protocol for all isolates and positions, respectively. Using this approach, no information regarding the expected CTX-M variant is needed since all sequences are covered by these degenerated primers. The presented workflow can be conducted within eight hours and has the potential to be expanded to other β-lactamase families.
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Affiliation(s)
- Claudia Stein
- Center for Infectious Diseases and Infection’s Control, Jena University Hospital, Jena, Germany
| | - Oliwia Makarewicz
- Center for Infectious Diseases and Infection’s Control, Jena University Hospital, Jena, Germany
- Center for Sepsis Control and Care, Jena University Hospital, Jena, Germany
| | - Yvonne Pfeifer
- Nosocomial pathogens and antibiotic resistance, Robert Koch Institute, Wernigerode, Germany
| | - Christian Brandt
- Center for Infectious Diseases and Infection’s Control, Jena University Hospital, Jena, Germany
| | - João Costa Ramos
- Center for Infectious Diseases and Infection’s Control, Jena University Hospital, Jena, Germany
| | - Mareike Klinger
- Center for Infectious Diseases and Infection’s Control, Jena University Hospital, Jena, Germany
- Center for Sepsis Control and Care, Jena University Hospital, Jena, Germany
| | - Mathias W. Pletz
- Center for Infectious Diseases and Infection’s Control, Jena University Hospital, Jena, Germany
- Center for Sepsis Control and Care, Jena University Hospital, Jena, Germany
- * E-mail:
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Lupo A, Papp-Wallace KM, Sendi P, Bonomo RA, Endimiani A. Non-phenotypic tests to detect and characterize antibiotic resistance mechanisms in Enterobacteriaceae. Diagn Microbiol Infect Dis 2013; 77:179-94. [PMID: 24091103 DOI: 10.1016/j.diagmicrobio.2013.06.001] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2013] [Accepted: 06/12/2013] [Indexed: 02/07/2023]
Abstract
In the past 2 decades, we have observed a rapid increase of infections due to multidrug-resistant Enterobacteriaceae. Regrettably, these isolates possess genes encoding for extended-spectrum β-lactamases (e.g., blaCTX-M, blaTEM, blaSHV) or plasmid-mediated AmpCs (e.g., blaCMY) that confer resistance to last-generation cephalosporins. Furthermore, other resistance traits against quinolones (e.g., mutations in gyrA and parC, qnr elements) and aminoglycosides (e.g., aminoglycosides modifying enzymes and 16S rRNA methylases) are also frequently co-associated. Even more concerning is the rapid increase of Enterobacteriaceae carrying genes conferring resistance to carbapenems (e.g., blaKPC, blaNDM). Therefore, the spread of these pathogens puts in peril our antibiotic options. Unfortunately, standard microbiological procedures require several days to isolate the responsible pathogen and to provide correct antimicrobial susceptibility test results. This delay impacts the rapid implementation of adequate antimicrobial treatment and infection control countermeasures. Thus, there is emerging interest in the early and more sensitive detection of resistance mechanisms. Modern non-phenotypic tests are promising in this respect, and hence, can influence both clinical outcome and healthcare costs. In this review, we present a summary of the most advanced methods (e.g., next-generation DNA sequencing, multiplex PCRs, real-time PCRs, microarrays, MALDI-TOF MS, and PCR/ESI MS) presently available for the rapid detection of antibiotic resistance genes in Enterobacteriaceae. Taking into account speed, manageability, accuracy, versatility, and costs, the possible settings of application (research, clinic, and epidemiology) of these methods and their superiority against standard phenotypic methods are discussed.
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Affiliation(s)
- Agnese Lupo
- Institute for Infectious Diseases, University of Bern, Bern, Switzerland
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Mallik D, Kumar A, Sarkar SK, Ghosh AS. Multiple Resistance Mechanisms Acting in Unison in an Escherichia coli Clinical Isolate. Curr Microbiol 2013; 67:748-53. [DOI: 10.1007/s00284-013-0431-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2013] [Accepted: 06/25/2013] [Indexed: 10/26/2022]
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50
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Rapid detection of TEM-type extended-spectrum β-lactamase (ESBL) mutations using lights-on/lights-off probes with single-stranded DNA amplification. J Mol Diagn 2013; 15:291-8. [PMID: 23518216 DOI: 10.1016/j.jmoldx.2013.02.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2012] [Revised: 12/14/2012] [Accepted: 02/05/2013] [Indexed: 11/21/2022] Open
Abstract
Rapid identification of specific TEM-type β-lactamase genes in bacterial infections is important for determining appropriate clinical treatment. We report here the design and initial testing of a molecular diagnostic assay capable of amplifying a large segment of the blaTEM gene, as well as detecting widely spaced extended-spectrum β-lactamase (ESBL) mutations and inhibitor-resistant TEM (IRT) mutations (eg, clavulanic acid resistance). Single-stranded DNA is generated using linear-after-the-exponential PCR (LATE-PCR) and is analyzed at the endpoint, using a set of four fluorescently labeled and four quencher-labeled probes in a single closed tube. These lights-on/lights-off probes work in concert to generate sequence-specific fluorescence contours over a temperature range from 25°C to 75°C. Mutant sequences from synthetic TEM gene variants and from TEM gene variants in bacterial strains generated large increases in fluorescent signal relative to that from the reference sequence for TEM-1. Clinical use of this convenient, single-closed-tube assay would make it possible to rapidly distinguish ESBL from non-ESBL variants and thereby to begin early treatment with suitable antibiotics.
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