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In Vitro Antifungal Activity of Amphotericin B and 11 Comparators Against Aspergillus Terreus Species Complex Publisher Pubmed



Vaezi A1, 2 ; Fakhim H3, 4 ; Arastehfar A5 ; Shokohi T1 ; Hedayati MT1 ; Khodavaisy S6 ; Rezaeimatehkolaei A7 ; Badiee P8 ; Hagen F9 ; Lassflorl C10 ; Dannaoui E11 ; Meis JF9, 12 ; Badali H1
Authors
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Authors Affiliations
  1. 1. Department of Medical Mycology and Parasitology, Invasive Fungi Research Center, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
  2. 2. Student Research Committee Center, Mazandaran University of Medical Sciences, Sari, Iran
  3. 3. Department of Medical Parasitology and Mycology, Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran
  4. 4. Cellular and Molecular Research Center, Urmia University of Medical Sciences, Urmia, Iran
  5. 5. Westerdijk Fungal Biodiversity Institute, Utrecht, Netherlands
  6. 6. Department of Medical Mycology and Parasitology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
  7. 7. Infectious and Tropical Diseases Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
  8. 8. Alborzi Clinical Microbiology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
  9. 9. Department of Medical Microbiology and Infectious Diseases, Canisius-Wilhelmina Hospital (CWZ), Nijmegen, Netherlands
  10. 10. Division of Hygiene and Medical Microbiology, Medical University of Innsbruck, Innsbruck, Austria
  11. 11. Faculte de Medecine, APHP, Universite Paris-Descartes, Hopital Europeen Georges Pompidou, Unite de Parasitologie-Mycologie, Paris, France
  12. 12. Center of Expertise in Mycology Radboudumc, CWZ, Nijmegen, Netherlands

Source: Mycoses Published:2018


Abstract

Aspergillus terreus infections are difficult to treat because of the intrinsic resistance to amphotericin B, and higher mortality compared to infections caused by other Aspergillus species. The aim of the present study was to determine the in vitro antifungal activity of amphotericin B and 11 comparators against clinical (n = 36) and environmental (n = 45) A. terreus isolates. In vitro antifungal susceptibility was performed using the CLSI M38-A2 procedure. Amphotericin B exhibited the highest MICs (MIC range, 0.125-4 μg/mL; MIC90, 2 μg/mL), followed by terbinafine (MIC range, 0.002-1 μg/mL; MIC90, 1 μg/mL). Only one isolate (1/81) showed amphotericin B MIC above the epidemiologic cut-off value (ECV; 4 μg/mL). None of the isolates had a MIC of ≥ ECV for voriconazole, itraconazole and posaconazole. The reasons for the difference in amphotericin B susceptibility patterns between studies remain unknown. The genetic and species diversity, clinical, environmental and ecological factors in Terrei section on various amphotericin B susceptibility profiles in different countries should be considered more as the main reasons associated with these differences. © 2017 Blackwell Verlag GmbH
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