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Geremia N, Sanson G, Principe L, Antonello RM, Zerbato V, Luzzati R, Di Bella S. A subanalysis of Clostridium perfringens bloodstream infections from a 5-year retrospective nationwide survey (ITANAEROBY). Anaerobe 2024:102901. [PMID: 39214165 DOI: 10.1016/j.anaerobe.2024.102901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2024] [Revised: 08/19/2024] [Accepted: 08/21/2024] [Indexed: 09/04/2024]
Abstract
C: perfringens bloodstream infections (BSIs) can be associated with high mortality rates. We performed a subanalysis of all C. perfringens BSIs enrolled during a multicentric retrospective observational study (ITANAEROBY). Data were collected from January 2016 to December 2020. C. perfringens BSIs were 134 (134/1960, 6.8%). The highest resistance rate was observed for clindamycin (26/120, 21.6%), penicillin (11/71, 15.4%) and metronidazole (14/131, 10.7%). In conclusion, C. perfringens reduced susceptible phenotype to first-line therapy.
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Affiliation(s)
- Nicholas Geremia
- Unit of Infectious Diseases, Department of Clinical Medicine, Ospedale "Dell'Angelo", 30174 Venice, Italy; Unit of Infectious Diseases, Department of Clinical Medicine, Ospedale Civile "S.S. Giovanni e Paolo", 30122 Venice, Italy.
| | - Gianfranco Sanson
- Clinical Department of Medical, Surgical and Health Sciences, University of Trieste, 34127 Trieste, Italy
| | - Luigi Principe
- Microbiology and Virology Unit, Great Metropolitan Hospital "Bianchi-Melacrino-Morelli", 89128 Reggio Calabria, Italy.
| | - Roberta Maria Antonello
- Department of Experimental and Clinical Medicine, University of Florence, 50121 Florence, Italy.
| | - Verena Zerbato
- Infectious Diseases Unit, Trieste University Hospital, 34128 Trieste, Italy.
| | - Roberto Luzzati
- Clinical Department of Medical, Surgical and Health Sciences, University of Trieste, 34127 Trieste, Italy.
| | - Stefano Di Bella
- Clinical Department of Medical, Surgical and Health Sciences, University of Trieste, 34127 Trieste, Italy.
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Reissier S, Penven M, Guérin F, Cattoir V. Recent Trends in Antimicrobial Resistance among Anaerobic Clinical Isolates. Microorganisms 2023; 11:1474. [PMID: 37374976 DOI: 10.3390/microorganisms11061474] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 05/26/2023] [Accepted: 05/28/2023] [Indexed: 06/29/2023] Open
Abstract
Anaerobic bacteria are normal inhabitants of the human commensal microbiota and play an important role in various human infections. Tedious and time-consuming, antibiotic susceptibility testing is not routinely performed in all clinical microbiology laboratories, despite the increase in antibiotic resistance among clinically relevant anaerobes since the 1990s. β-lactam and metronidazole are the key molecules in the management of anaerobic infections, to the detriment of clindamycin. β-lactam resistance is usually mediated by the production of β-lactamases. Metronidazole resistance remains uncommon, complex, and not fully elucidated, while metronidazole inactivation appears to be a key mechanism. The use of clindamycin, a broad-spectrum anti-anaerobic agent, is becoming problematic due to the increase in resistance rate in all anaerobic bacteria, mainly mediated by Erm-type rRNA methylases. Second-line anti-anaerobes are fluoroquinolones, tetracyclines, chloramphenicol, and linezolid. This review aims to describe the up-to-date evolution of antibiotic resistance, give an overview, and understand the main mechanisms of resistance in a wide range of anaerobes.
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Affiliation(s)
- Sophie Reissier
- Rennes University Hospital, Department of Clinical Microbiology, F-35033 Rennes, France
- UMR_S1230 BRM, Inserm, University of Rennes, F-35043 Rennes, France
| | - Malo Penven
- Rennes University Hospital, Department of Clinical Microbiology, F-35033 Rennes, France
- UMR_S1230 BRM, Inserm, University of Rennes, F-35043 Rennes, France
| | - François Guérin
- Rennes University Hospital, Department of Clinical Microbiology, F-35033 Rennes, France
- UMR_S1230 BRM, Inserm, University of Rennes, F-35043 Rennes, France
| | - Vincent Cattoir
- Rennes University Hospital, Department of Clinical Microbiology, F-35033 Rennes, France
- UMR_S1230 BRM, Inserm, University of Rennes, F-35043 Rennes, France
- CHU de Rennes, Service de Bactériologie-Hygiène Hospitalière, 2 Rue Henri Le Guilloux, CEDEX 9, F-35033 Rennes, France
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Wu K, Feng H, Ma J, Wang B, Feng J, Zhang H, Jiang Y, Li R, Wang J, Yang Z. Prevalence, toxin-typing and antimicrobial susceptibility of Clostridium perfringens in sheep with different feeding modes from Gansu and Qinghai provinces, China. Anaerobe 2022; 73:102516. [DOI: 10.1016/j.anaerobe.2022.102516] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Revised: 01/05/2022] [Accepted: 01/07/2022] [Indexed: 11/29/2022]
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Baquer F, Ali Sawan A, Auzou M, Grillon A, Jaulhac B, Join-Lambert O, Boyer PH. Broth Microdilution and Gradient Diffusion Strips vs. Reference Agar Dilution Method: First Evaluation for Clostridiales Species Antimicrobial Susceptibility Testing. Antibiotics (Basel) 2021; 10:antibiotics10080975. [PMID: 34439025 PMCID: PMC8388896 DOI: 10.3390/antibiotics10080975] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 08/02/2021] [Accepted: 08/03/2021] [Indexed: 12/05/2022] Open
Abstract
Antimicrobial susceptibility testing of anaerobes is challenging. Because MIC determination is recommended by both CLSI and EUCAST, commercial broth microdilution and diffusion strip tests have been developed. The reliability of broth microdilution methods has not been assessed yet using the agar dilution reference method. In this work, we evaluated two broth microdilution kits (MICRONAUT-S Anaerobes® MIC and Sensititre Anaerobe MIC®) and one gradient diffusion strip method (Liofilchem®) for antimicrobial susceptibility testing of 47 Clostridiales isolates (Clostridium, Clostridioides and Hungatella species) using the agar dilution method as a reference. The evaluation focused on comparing six antimicrobial molecules available in both microdilution kits. Analytical performances were evaluated according to the Food and Drug Administration (FDA) recommendations. Essential agreements (EA) and categorical agreements (CA) varied greatly according to the molecule and the evaluated method. Vancomycin had values of essential and categorical agreements above 90% for the three methods. The CA fulfilled the FDA criteria for three major molecules in the treatment of Gram-positive anaerobic infections (metronidazole, piperacillin/tazobactam and vancomycin). The highest rate of error was observed for clindamycin. Multicenter studies are needed to further validate these results.
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Affiliation(s)
- Florian Baquer
- Laboratory of Bacteriology, Strasbourg University Hospital, F-67000 Strasbourg, France; (F.B.); (A.A.S.); (A.G.); (B.J.)
| | - Asma Ali Sawan
- Laboratory of Bacteriology, Strasbourg University Hospital, F-67000 Strasbourg, France; (F.B.); (A.A.S.); (A.G.); (B.J.)
- Department of Medical Microbiology and Parasitology, Faculty of Medicine, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Michel Auzou
- Research Group on Microbial Adaptation GRAM 2.0, Department of Microbiology and Hygiene, Caen University Hospital of Caen, UniCaen-UniRouen, F-14033 Caen, France; (M.A.); (O.J.-L.)
| | - Antoine Grillon
- Laboratory of Bacteriology, Strasbourg University Hospital, F-67000 Strasbourg, France; (F.B.); (A.A.S.); (A.G.); (B.J.)
- Institute of Bacteriology, University of Strasbourg, UR7290, ITI InnoVec, Fédération de Médecine Translationnelle de Strasbourg, 3 rue Koeberlé, F-67000 Strasbourg, France
| | - Benoît Jaulhac
- Laboratory of Bacteriology, Strasbourg University Hospital, F-67000 Strasbourg, France; (F.B.); (A.A.S.); (A.G.); (B.J.)
- Institute of Bacteriology, University of Strasbourg, UR7290, ITI InnoVec, Fédération de Médecine Translationnelle de Strasbourg, 3 rue Koeberlé, F-67000 Strasbourg, France
| | - Olivier Join-Lambert
- Research Group on Microbial Adaptation GRAM 2.0, Department of Microbiology and Hygiene, Caen University Hospital of Caen, UniCaen-UniRouen, F-14033 Caen, France; (M.A.); (O.J.-L.)
| | - Pierre H. Boyer
- Laboratory of Bacteriology, Strasbourg University Hospital, F-67000 Strasbourg, France; (F.B.); (A.A.S.); (A.G.); (B.J.)
- Institute of Bacteriology, University of Strasbourg, UR7290, ITI InnoVec, Fédération de Médecine Translationnelle de Strasbourg, 3 rue Koeberlé, F-67000 Strasbourg, France
- Correspondence:
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Park M, Sutherland JB, Rafii F. β-Lactam resistance development affects binding of penicillin-binding proteins (PBPs) of Clostridium perfringens to the fluorescent penicillin, BOCILLIN FL. Anaerobe 2020; 62:102179. [PMID: 32088319 DOI: 10.1016/j.anaerobe.2020.102179] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 02/18/2020] [Accepted: 02/19/2020] [Indexed: 01/11/2023]
Abstract
Alteration in the binding of bacterial penicillin-binding proteins (PBPs) to β-lactams is important in the development of drug resistance. The PBPs of wild type Clostridium perfringens ATCC 13124 and three β-lactam-resistant mutants were compared for the ability to bind to a fluorescent penicillin, BOCILLIN FL. The binding of the high molecular weight protein PBP1, a transpeptidase, to BOCILLIN FL was reduced in all of the resistant strains. In contrast, the binding of BOCILLIN FL to a low molecular weight protein, PBP6, a D-alanyl-d-alanine carboxypeptidase that was more abundant in all three resistant strains, was substantially increased. A competition assay with β-lactams reduced the binding of all of the PBPs, including PBP6, to BOCILLIN FL. β-Lactams enhanced transcription of the putative gene for PBP6 in both wild type and resistant strains. This is the first report showing that mutations in a high molecular weight PBP and overexpression of a low molecular weight PBP in resistant C. perfringens strains affected their binding to β-lactams.
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Affiliation(s)
- Miseon Park
- Division of Microbiology, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR, 71602, USA
| | - John B Sutherland
- Division of Microbiology, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR, 71602, USA
| | - Fatemeh Rafii
- Division of Microbiology, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR, 71602, USA.
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