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Your search keyword '"Ardizzoni, Elisa"' showing total 4 results
Start Over Author "Ardizzoni, Elisa" Topic antitubercular agents
4 results on '"Ardizzoni, Elisa"'

1. MDR M. tuberculosis outbreak clone in Eswatini missed by Xpert has elevated bedaquiline resistance dated to the pre-treatment era.

Author

Beckert P, Sanchez-Padilla E, Merker M, Dreyer V, Kohl TA, Utpatel C, Köser CU, Barilar I, Ismail N, Omar SV, Klopper M, Warren RM, Hoffmann H, Maphalala G, Ardizzoni E, de Jong BC, Kerschberger B, Schramm B, Andres S, Kranzer K, Maurer FP, Bonnet M, and Niemann S

Subjects
Clone Cells drug effects, Disease Outbreaks, Eswatini, Humans, Microbial Sensitivity Tests, Mutation, Tuberculosis, Multidrug-Resistant microbiology, Antitubercular Agents pharmacology, Bacterial Proteins genetics, Diarylquinolines pharmacology, Mycobacterium tuberculosis drug effects, Mycobacterium tuberculosis genetics, Tuberculosis, Multidrug-Resistant genetics
Abstract

Background: Multidrug-resistant (MDR) Mycobacterium tuberculosis complex strains not detected by commercial molecular drug susceptibility testing (mDST) assays due to the RpoB I491F resistance mutation are threatening the control of MDR tuberculosis (MDR-TB) in Eswatini., Methods: We investigate the evolution and spread of MDR strains in Eswatini with a focus on bedaquiline (BDQ) and clofazimine (CFZ) resistance using whole-genome sequencing in two collections ((1) national drug resistance survey, 2009-2010; (2) MDR strains from the Nhlangano region, 2014-2017)., Results: MDR strains in collection 1 had a high cluster rate (95%, 117/123 MDR strains) with 55% grouped into the two largest clusters (gCL3, n = 28; gCL10, n = 40). All gCL10 isolates, which likely emerged around 1993 (95% highest posterior density 1987-1998), carried the mutation RpoB I491F that is missed by commercial mDST assays. In addition, 21 (53%) gCL10 isolates shared a Rv0678 M146T mutation that correlated with elevated minimum inhibitory concentrations (MICs) to BDQ and CFZ compared to wild type isolates. gCL10 isolates with the Rv0678 M146T mutation were also detected in collection 2., Conclusion: The high clustering rate suggests that transmission has been driving the MDR-TB epidemic in Eswatini for three decades. The presence of MDR strains in Eswatini that are not detected by commercial mDST assays and have elevated MICs to BDQ and CFZ potentially jeopardizes the successful implementation of new MDR-TB treatment guidelines. Measures to limit the spread of these outbreak isolates need to be implemented urgently.

Published
2020
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2. Correlation of different phenotypic drug susceptibility testing methods for four fluoroquinolones in Mycobacterium tuberculosis.

Author

Coeck N, de Jong BC, Diels M, de Rijk P, Ardizzoni E, Van Deun A, and Rigouts L

Subjects
Culture Media chemistry, DNA Gyrase genetics, Microbial Sensitivity Tests methods, Mycobacterium tuberculosis enzymology, Mycobacterium tuberculosis genetics, Sequence Analysis, DNA, Antitubercular Agents pharmacology, Fluoroquinolones pharmacology, Mycobacterium tuberculosis drug effects
Abstract

Background: Molecular resistance testing fails to explain all fluoroquinolone resistance, with a continued need for a suitable rapid phenotypic drug susceptibility testing method., Objective: To evaluate the optimal method for phenotypic fluoroquinolone susceptibility testing., Methods: Using Löwenstein-Jensen medium, Middlebrook 7H11 agar, BACTEC-MGIT 960 and the resazurin microtitre plate assay, we determined susceptibility to fluoroquinolones in Mycobacterium tuberculosis and investigated cross-resistance between ofloxacin, levofloxacin, moxifloxacin and gatifloxacin. We compared MICs of all four fluoroquinolones for 91 strains on Löwenstein-Jensen (as the gold standard) with their MICs in resazurin plates, and with ofloxacin susceptibility at a single concentration in MGIT and on 7H11 agar, in addition to sequencing of the gyrAB genes., Results and Conclusions: Applying a cut-off of 2 mg/L ofloxacin, 1 mg/L levofloxacin and 0.5 mg/L moxifloxacin and gatifloxacin in all methods, some discordance between solid medium and MGIT methods was observed, yet this tended to be explained by MICs around the cut-off. The high discordance between Löwenstein-Jensen (LJ) and resazurin plates suggests that the currently applied cut-offs for all fluoroquinolones in the resazurin method should decrease and minor changes in colour (from blue to purple) be considered as meaningful. High-level resistance in all assays to all drugs correlated well with the presence of gyrA mutations, in support of recent findings that fluoroquinolone resistance should be tested at different concentrations, as patients with lower levels of resistance may continue to benefit from high-dose fluoroquinolone-based therapy., (© The Author 2016. Published by Oxford University Press on behalf of the British Society for Antimicrobial Chemotherapy.)

Published
2016
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3. Updating the approaches to define susceptibility and resistance to anti-tuberculosis agents: implications for diagnosis and treatment

Author

Georghiou, Sophia B, Rodwell, Timothy C, Korobitsyn, Alexei, Abbadi, Said H, Ajbani, Kanchan, Alffenaar, Jan-Willem, Alland, David, Alvarez, Nataly, Andres, Sönke, Ardizzoni, Elisa, Aubry, Alexandra, Baldan, Rossella, Ballif, Marie, Barilar, Ivan, Böttger, Erik C, Chakravorty, Soumitesh, Claxton, Pauline M, Cirillo, Daniela M, Comas, Iñaki, Coulter, Chris, Denkinger, Claudia M, Derendinger, Brigitta, Desmond, Edward P, de Steenwinkel, Jurriaan EM, Dheda, Keertan, Diacon, Andreas H, Dolinger, David L, Dooley, Kelly E, Egger, Matthias, Ehsani, Soudeh, Farhat, Maha R, Fattorini, Lanfranco, Finci, Iris, Le Ray, Laure Fournier, Furió, Victoria, Groenheit, Ramona, Gumbo, Tawanda, Heysell, Scott K, Hillemann, Doris, Hoffmann, Harald, Hsueh, Po-Ren, Hu, Yi, Huang, Hairong, Hussain, Alamdar, Ismail, Farzana, Izumi, Kiyohiko, Jagielski, Tomasz, Johnson, John L, Kambli, Priti, Kaniga, Koné, Karunaratne, GHR Eranga, Sharma, Meenu Kaushal, Keller, Peter M, Kelly, Ellis C, Kholina, Margarita, Kohli, Mikashmi, Kranzer, Katharina, Laurenson, Ian F, Limberis, Jason, Lin, S-Y Grace, Liu, Yongge, López-Gavín, Alexandre, Lyander, Anna, Machado, Diana, Martinez, Elena, Masood, Faisal, Mitarai, Satoshi, Mvelase, Nomonde R, Niemann, Stefan, Nikolayevskyy, Vladyslav, Maurer, Florian P, Merker, Matthias, Miotto, Paolo, Omar, Shaheed V, Otto-Knapp, Ralf, Palaci, Moisés, Gutiérrez, Juan José Palacios, Peacock, Sharon J, Peloquin, Charles A, Perera, Jennifer, Pierre-Audigier, Catherine, Pholwat, Suporn, Posey, James E, Prammananan, Therdsak, Rigouts, Leen, Robledo, Jaime, Rockwood, Neesha, Rodrigues, Camilla, Salfinger, Max, Schechter, Marcos C, Seifert, Marva, Sengstake, Sarah, Shinnick, Thomas, Shubladze, Natalia, Sintchenko, Vitali, Sirgel, Frederick, Somasundaram, Sulochana, Sterling, Timothy R, Spitaleri, Andrea, and Streicher, Elizabeth

Subjects
Medical Microbiology, Biomedical and Clinical Sciences, Clinical Sciences, Orphan Drug, Emerging Infectious Diseases, Tuberculosis, Biodefense, Antimicrobial Resistance, Infectious Diseases, Rare Diseases, 5.1 Pharmaceuticals, 6.1 Pharmaceuticals, Infection, Good Health and Well Being, Antitubercular Agents, Drug Resistance, Bacterial, Drug Resistance, Multiple, Bacterial, Humans, Microbial Sensitivity Tests, Mycobacterium tuberculosis, Tuberculosis, Multidrug-Resistant, Antimycobacterial Susceptibility Testing Group, Medical and Health Sciences, Respiratory System, Cardiovascular medicine and haematology
Abstract

Inappropriately high breakpoints have resulted in systematic false-susceptible AST results to anti-TB drugs. MIC, PK/PD and clinical outcome data should be combined when setting breakpoints to minimise the emergence and spread of antimicrobial resistance. https://bit.ly/3i43wb6

Published
2022

4. Updating the approaches to define susceptibility and resistance to anti-tuberculosis agents: implications for diagnosis and treatment

Author

Antimycobacterial Susceptibility Testing Group, Georghiou, Sophia B., Rodwell, Timothy C., Korobitsyn, Alexei, Abbadi, Said H., Ajbani, Kanchan, Alffenaar, Jan-Willem, Alland, David, Alvarez, Nataly, Andres, Sönke, Ardizzoni, Elisa, Aubry, Alexandra, Baldan, Rossella, Ballif, Marie, Barilar, Ivan, Böttger, Erik C., Chakravorty, Soumitesh, Claxton, Pauline M., Cirillo, Daniela M., Comas, Iñaki, Coulter, Chris, Denkinger, Claudia M., Derendinger, Brigitta, Desmond, Edward P., Steenwinkel, Jurriaan E. M. de, Dheda, Keertan, Diacon, Andreas H., Dolinger, David L., Dooley, Kelly E., Egger, Matthias, Ehsani, Soudeh, Farhat, Maha R., Fattorini, Lanfranco, Finci, Iris, Fournier Le Ray, Laure, Furió, Victoria, Groenheit, Ramona, Gumbo, Tawanda, Heysell, Scott K., Hillemann, Doris, Hoffmann, Harald, Hsueh, Po-Ren, Hu, Yi, Huang, Hairong, Hussain, Alamdar, Ismail, Farzana, Izumi, Kiyohiko, Jagielski, Tomasz, Johnson, John L., Kambli, Priti, Kaniga, Koné, Karunaratne, G. H. R. Eranga, Sharma, Meenu Kaushal, Keller, Peter M., Kelly, Ellis C., Kholina, Margarita, Kohli, Mikashmi, Kranzer, Katharina, Laurenson, Ian F., Limberis, Jason, Lin, S-Y. Grace, Liu, Yongge, López-Gavín, Alexandre, Lyander, Anna, Machado, Diana, Martínez, Elena, Masood, Faisal, Mitarai, Satoshi, Mvelase, Nomonde R., Niemann, Stefan, Nikolayevskyy, Vladyslav, Maurer, Florian P., Merker, Matthias, Miotto, Paolo, Omar, Shaheed V., Otto-Knapp, Ralf, Palaci, Moisés, Palacios Gutiérrez, Juan José, Peacock, Sharon J., Peloquin, Charles A., Perera, Jennifer, Pierre-Audigier, Catherine, Pholwat, Suporn, Posey, James E., Prammananan, Therdsak, Rigouts, Leen, Robledo, Jaime, Rockwood, Neesha, Rodrigues, Camilla, Salfinger, Max, Schechter, Marcos C., Seifert, Marva, Sengstake, Sarah, Shinnick, Thomas, Shubladze, Natalia, Sintchenko, Vitali, Sirgel, Frederick, Somasundaram, Sulochana, Sterling, Timothy R., Spitaleri, Andrea, Streicher, Elizabeth, Supply, Philip, Svensson, Erik, Tagliani, Elisa, Tahseen, Sabira, Takaki, Akiko, Theron, Grant, Torrea, Gabriela, Van Deun, Armand, van Ingen, Jakko, Van Rie, Annelies, van Soolingen, Dick, Vargas Jr, Roger, Venter, Amour, Veziris, Nicolas, Villellas, Cristina, Viveiros, Miguel, Warren, Robin, Wen, Shu'an, Werngren, Jim, Wilkinson, Robert J., Yang, Caie, Yılmaz, F. Ferda, Zhang, Tingting, Zimenkov, Danila, Ismail, Nazir, Köser, Claudio U., Schön, Thomas, University of Zurich, Antimycobacterial Susceptibility Testing Group, Department of Genetics [Cambridge], University of Cambridge [UK] (CAM), Centre d'Immunologie et des Maladies Infectieuses (CIMI), Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Centre Médical de l'Institut Pasteur (CMIP), Institut Pasteur [Paris] (IP)-Université Paris Cité (UPCité), Institut de médecine et d'épidémiologie appliquée [AP-HP Hôpital Bichat-Claude Bernard] (IMEA), AP-HP - Hôpital Bichat - Claude Bernard [Paris], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Centre d’Infection et d’Immunité de Lille - INSERM U 1019 - UMR 9017 - UMR 8204 (CIIL), Institut Pasteur de Lille, Réseau International des Instituts Pasteur (RIIP)-Réseau International des Instituts Pasteur (RIIP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lille-Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille)-Centre National de la Recherche Scientifique (CNRS), As current or former employees or consultants for FIND, the work of R.B. Baldan, I. Comas, C.M. Denkinger, D.L. Dolinger, S.B. Georghiou, C.U. Köser and T.C. Rodwell on the systematic reviews, including this viewpoint, was supported by Unitaid (grant 2019-32-FIND MDR), BMGF (grant OPP1105925), the German Federal Ministry of Education and Research through KfW, the Dutch Ministry of Foreign Affairs, the Australian Department of Foreign Affairs and Trade, and UK aid from the British people. N. Alvarez and J. Robledo are funded by MinCiencias, Colombia (number 221389666216 CT-783-2018). A. Aubry and N. Veziris work at the Centre National de Reference des Mycobactéries, which receives an annual grant from Santé Publique France and have received research grants from Janssen for studies on bedaquiline. P. Claxton and I.F. Laurenson are funded through National Services Scotland. I. Comas was supported by PID2019-104477RB-I00 from the Spanish Science Ministry and by ERC (CoG 101001038). M. Egger is supported by the Swiss National Science Foundation (grant number 320030_153442 and 189498) and the US National Institutes of Health, National Institute of Allergy and Infectious Diseases, the Eunice Kennedy Shriver National Institute of Child Health and Human Development, the National Cancer Institute, the National Institute of Mental Health, the National Institute on Drug Abuse, the National Heart, Lung, and Blood Institute, the National Institute on Alcohol Abuse and Alcoholism, the National Institute of Diabetes and Digestive and Kidney Diseases, the Fogarty International Center, and the National Library of Medicine: Asia-Pacific, U01AI069907, CCASAnet, U01AI069923, Central Africa, U01AI096299, East Africa, U01AI069911, NA-ACCORD, U01AI069918, Southern Africa, U01AI069924, West Africa, U01AI069919. M.R. Farhat is supported by NIH NIAID R01AI155765. S.K. Heysell was funded by NIH NIAID grants R01 AI137080 and U01 AI150508. T. Jagielski was supported by a DAINA grant (number 2017/27/L/NZ6/03279) from the National Science Centre, Poland. J.L. Johnson was supported by contracts NO1-AI95383 and NO1-AI-70022 of the US National Institutes of Health. P.M. Keller was supported by Innosuisse 36198.1 IP-LS. C.U. Köser is a research associate at Wolfson College and visiting scientist at the Department of Genetics, University of Cambridge. The Federal Government of Germany supported C.U. Köser as part of his work for the European Laboratory Initiative, WHO Regional Office for Europe. C.U. Köser was further supported by the Royal Society of Tropical Medicine and Hygiene and the National Institute for Health Research Cambridge Biomedical Research Centre and received an observership by the European Society of Clinical Microbiology and Infectious Diseases to the EUCAST Development Laboratory for Bacteria (Växjö, Sweden), hosted by Gunnar Kahlmeter and Erika Matuschek. D. Machado and M. Viveiros are funded in part by Fundação para a Ciência e a Tecnologia, Portugal (PTDC/BIA-MIC/30692/2017, UID/Multi/04413/2020 and DL57/ CEECIND/0256/2017). S. Niemann is supported by the German Center for Infection Research, Excellenz Cluster Precision Medicine in Chronic Inflammation EXC 2167, Leibniz Science Campus Evolutionary Medicine of the LUNG (EvoLUNG). S.V. Omar has received funding to prepare and provide training for Janssen Pharmaceutica activities. L. Rigouts is supported by the Belgian Directorate General for Development. T.C. Rodwell was additionally funded in part by FIND and NIH NIAD, grants: P30 AI036214 and R21 AI135756. T. Schön is funded by the Swedish Heart and Lung Foundation and the Swedish Research Council. T.R. Sterling has received funding from the US National Institutes of Health and the Centers for Disease Control and Prevention. G. Theron and R. Warren are supported by baseline funding from the South African Medical Research Council. R.J. Wilkinson receives funding from the Wellcome Trust (203135) and from the Francis Crick Institute, which is supported by Cancer Research UK (FC0010218), UKRI (FC0010218) and the Wellcome Trust (FC0010218), Ministerio de Ciencia e Innovación (España), European Research Council, Comas, Iñaki, Comas, Iñaki [0000-0001-5504-9408], Antimycobacterial Susceptibility T, and Wellcome Trust

Subjects
[SDV]Life Sciences [q-bio], Respiratory System, Drug Resistance, Antitubercular Agents, Infektionsmedicin, Medical and Health Sciences, Drug Resistance, Multiple, Bacterial, Tuberculosis, Multidrug-Resistant, 11 Medical and Health Sciences, Human Biology & Physiology, MESH: Microbial Sensitivity Tests, 10179 Institute of Medical Microbiology, Bacterial, Multidrug-Resistant, Infectious Diseases, 5.1 Pharmaceuticals, Development of treatments and therapeutic interventions, Infection, Life Sciences & Biomedicine, Multiple, Model organisms, Pulmonary and Respiratory Medicine, Infectious Medicine, Immunology, Infectious Disease, 610 Medicine & health, Microbial Sensitivity Tests, Vaccine Related, Rare Diseases, Clinical Research, Biodefense, MESH: Drug Resistance, Bacterial, Drug Resistance, Bacterial, Tuberculosis, Humans, Science & Technology, MESH: Humans, Antimycobacterial Susceptibility Testing Group, FOS: Clinical medicine, Prevention, MESH: Drug Resistance, Multiple, Bacterial, Mycobacterium tuberculosis, Eucast, MESH: Antitubercular Agents, lnfectious Diseases and Global Health Radboud Institute for Health Sciences [Radboudumc 4], Orphan Drug, Emerging Infectious Diseases, Good Health and Well Being, 2740 Pulmonary and Respiratory Medicine, 570 Life sciences, biology, Human medicine, Antimicrobial Resistance, Model
Abstract

11 páginas, 2 figuras, 1 tabla, Inappropriately high breakpoints have resulted in systematic false-susceptible AST results to anti-TB drugs. MIC, PK/PD and clinical outcome data should be combined when setting breakpoints to minimise the emergence and spread of antimicrobial resistance., I. Comas was supported by PID2019-104477RB-I00 from the Spanish Science Ministry and by ERC (CoG 101001038)

Published
2022
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