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Fernandez-Pittol M, Bosch J, Ballesté-Delpierre C, Gonzalez C, Vasilakopoulou A, Berbel D, Riccobono E, Gatermann S, Kamotsay K, Reissier S, Szabo D, Aszalos AZ, Francius L, Volland H, Stankov-Pugès M, Rosenmöller M, Naas T, Vila J. Multicenter study to assess the use of BL-DetecTool for the detection of CTX-M-type ESBLs and carbapenemases directly from clinical specimens. J Clin Microbiol 2024; 62:e0113623. [PMID: 38319119 PMCID: PMC10935652 DOI: 10.1128/jcm.01136-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 01/03/2024] [Indexed: 02/07/2024] Open
Abstract
Antimicrobial resistance (AMR) is one of the major public health problems worldwide. Multiple strategies have been put in place to address this problem. One of them is the rapid detection of the mechanisms of resistance, such as extended-spectrum beta-lactamases (ESBLs) and/or carbapenemases. We conducted a multicenter study that included nine European centers for the assessment of prototypes of a novel lateral flow immunoassay-based device (BL-DetecTool) for a rapid detection of ESBL (NG-Test CTX-M-MULTI DetecTool) and/or carbapenemases (NG-Test CARBA 5 DetecTool) from Enterobacterales and Pseudomonas aeruginosa in positive urine, positive blood cultures, and rectal swabs. We performed a prospective analysis between January 2021 and June 2022, including overall 22,010 samples. Based on each hospital information, the sensitivity to detect CTX-M was 84%-100%, 90.9%-100%, and 75%-100% for urine, positive blood cultures, and enriched rectal swabs, respectively. On the other hand, the sensitivity to detect carbapenemases was 42.8%-100%, 75%-100%, and 66.6%-100% for urine, positive blood cultures, and enriched rectal swab, respectively. BL-DetecTool allows a rapid and reliable detection of ESBL and carbapenemases directly from urine, positive blood cultures, or enriched rectal swabs, being an easy technique to implement in the workflow of clinical microbiology laboratories. IMPORTANCE The assessed rapid assay to detect CTX-M beta-lactamases and carbapenemases directly from clinical samples can favor in the rapid detection of these mechanisms of resistance and hence the administration of a more adequate antimicrobial treatment.
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Affiliation(s)
- Mariana Fernandez-Pittol
- Department of Microbiology, Hospital Clinic of Barcelona, Barcelona, Spain
- Institute for Global Health (ISGlobal), University of Barcelona, Barcelona, Spain
| | - Jordi Bosch
- Department of Microbiology, Hospital Clinic of Barcelona, Barcelona, Spain
- Institute for Global Health (ISGlobal), University of Barcelona, Barcelona, Spain
| | | | - Camille Gonzalez
- Team "Resist", INSERM Unit 1184, Faculty of Medicine, Université Paris-Saclay, Bacteriology-Hygiene Unit, Assistance Publique-Hôpitaux de Paris, AP-HP Paris-Saclay, Bicêtre Hospital Le Kremlin-Bicêtre, Le Kremlin-Bicêtre, France
| | - Alexandra Vasilakopoulou
- Laboratory of Clinical Microbiology, Attikon University General Hospital, Medical School, National Kapodistrian University Athens (Greece), Athens, Greece
| | - Dàmaris Berbel
- Microbiology Department, Hospital de Bellvitge. IDIBELL. UB. CIBERES, Barcelona, Spain
| | - Eleonora Riccobono
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Sören Gatermann
- German National Reference Laboratory for Multidrug-Resistant Gram-negative Bacteria, Department of Medical Microbiology, Ruhr-University Bochum, Germany - (Germany), Bochum, Germany
| | - Katalin Kamotsay
- Central Microbiology Laboratory, Central Hospital of Southern Pest National Institute of Hematology and Infectious Disease, Budapest, Hungary
| | - Sophie Reissier
- Department of Bacteriology, Amiens University Hospital, Amiens, France
| | - Dora Szabo
- Semmelweis University, Institute of Medical Microbiology, Budapest, Hungary
| | - Albert Zoltan Aszalos
- Health Services Management Training Centre, Semmelweis University, Budapest, Hungary
| | | | - Hervé Volland
- Département Médicaments et Technologies pour la Santé (DMTS), Université Paris Saclay, CEA, INRAE, SPI, Gif-sur-Yvette, France
| | | | | | - Thierry Naas
- Team "Resist", INSERM Unit 1184, Faculty of Medicine, Université Paris-Saclay, Bacteriology-Hygiene Unit, Assistance Publique-Hôpitaux de Paris, AP-HP Paris-Saclay, Bicêtre Hospital Le Kremlin-Bicêtre, Le Kremlin-Bicêtre, France
| | - Jordi Vila
- Department of Microbiology, Hospital Clinic of Barcelona, Barcelona, Spain
- Institute for Global Health (ISGlobal), University of Barcelona, Barcelona, Spain
- Department of Clinical Microbiology - CDB, University of Barcelona, Hospital Clínic, Barcelona, Spain
- CIBER de Enfermedades Infecciosas , Barcelona, Spain
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Cabrol L, Capo E, van Vliet DM, von Meijenfeldt FAB, Bertilsson S, Villanueva L, Sánchez-Andrea I, Björn E, G. Bravo A, Heimburger Boavida LE. Redox gradient shapes the abundance and diversity of mercury-methylating microorganisms along the water column of the Black Sea. mSystems 2023; 8:e0053723. [PMID: 37578240 PMCID: PMC10469668 DOI: 10.1128/msystems.00537-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 06/16/2023] [Indexed: 08/15/2023] Open
Abstract
In the global context of seawater deoxygenation triggered by climate change and anthropogenic activities, changes in redox gradients impacting biogeochemical transformations of pollutants, such as mercury, become more likely. Being the largest anoxic basin worldwide, with high concentrations of the potent neurotoxic methylmercury (MeHg), the Black Sea is an ideal natural laboratory to provide new insights about the link between dissolved oxygen concentration and hgcAB gene-carrying (hgc+) microorganisms involved in the formation of MeHg. We combined geochemical and microbial approaches to assess the effect of vertical redox gradients on abundance, diversity, and metabolic potential of hgc+ microorganisms in the Black Sea water column. The abundance of hgcA genes [congruently estimated by quantitative PCR (qPCR) and metagenomics] correlated with MeHg concentration, both maximal in the upper part of the anoxic water. Besides the predominant Desulfobacterales, hgc+ microorganisms belonged to a unique assemblage of diverse-previously underappreciated-anaerobic fermenters from Anaerolineales, Phycisphaerae (characteristic of the anoxic and sulfidic zone), Kiritimatiellales, and Bacteroidales (characteristic of the suboxic zone). The metabolic versatility of Desulfobacterota differed from strict sulfate reduction in the anoxic water to reduction of various electron acceptors in the suboxic water. Linking microbial activity and contaminant concentration in environmental studies is rare due to the complexity of biological pathways. In this study, we disentangle the role of oxygen in shaping the distribution of Hg-methylating microorganisms consistently with MeHg concentration, and we highlight their taxonomic and metabolic niche partitioning across redox gradients, improving the prediction of the response of marine communities to the expansion of oxygen-deficient zones. IMPORTANCE Methylmercury (MeHg) is a neurotoxin detected at high concentrations in certain marine ecosystems, posing a threat to human health. MeHg production is mainly mediated by hgcAB gene-carrying (hgc+) microorganisms. Oxygen is one of the main factors controlling Hg methylation; however, its effect on the diversity and ecology of hgc+ microorganisms remains unknown. Under the current context of seawater deoxygenation, mercury cycling is expected to be disturbed. Here, we show the strong effect of oxygen gradients on the distribution of potential Hg methylators. In addition, we show for the first time the significant contribution of a unique assemblage of potential fermenters from Anaerolineales, Phycisphaerae, and Kiritimatiellales to Hg methylation, stratified in different redox niches along the Black Sea gradient. Our results considerably expand the known taxonomic diversity and ecological niches prone to the formation of MeHg and contribute to better apprehend the consequences of oxygen depletion in seawater.
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Affiliation(s)
- Léa Cabrol
- Aix Marseille University, Univ. Toulon, CNRS, IRD, Mediterranean Institute of Oceanography (MIO) UM 110, Marseille, France
- Institute of Ecology and Biodiversity (IEB), University of Chile, Santiago, Chile
| | - Eric Capo
- Department of Marine Biology and Oceanography, Institute of Marine Sciences, CSIC, Barcelona, Spain
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences, Uppsala, Sweden
- Department of Ecology and Environmental Science, Umeå University, Umeå, Sweden
| | - Daan M. van Vliet
- Laboratory of Microbiology, Wageningen University and Research, Wageningen, the Netherlands
- Wageningen Food and Biobased Research, Wageningen, the Netherlands
| | - F. A. Bastiaan von Meijenfeldt
- Department of Marine Microbiology and Biogeochemistry, NIOZ Royal Netherlands Institute for Sea Research, Texel, the Netherlands
| | - Stefan Bertilsson
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Laura Villanueva
- Department of Marine Microbiology and Biogeochemistry, NIOZ Royal Netherlands Institute for Sea Research, Texel, the Netherlands
- Faculty of Geosciences, Department of Earth Sciences, Utrecht University, Utrecht, the Netherlands
| | - Irene Sánchez-Andrea
- Laboratory of Microbiology, Wageningen University and Research, Wageningen, the Netherlands
| | - Erik Björn
- Department of Chemistry, Umeå University, Umeå, Sweden
| | - Andrea G. Bravo
- Department of Marine Biology and Oceanography, Institute of Marine Sciences, CSIC, Barcelona, Spain
| | - Lars-Eric Heimburger Boavida
- Aix Marseille University, Univ. Toulon, CNRS, IRD, Mediterranean Institute of Oceanography (MIO) UM 110, Marseille, France
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