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    標題: Species identification and antifungal susceptibility of uncommon blood yeast isolates
    作者: Li, Ming-Chi
    Tang, Hung-Jen
    Wu, Chi-Jung
    Wang, Shin-Wei
    Su, Shu-Li
    Liu, Wei-Lun
    Ko, Wen-Chien
    Chen, Yee-Chun
    貢獻者: National Cheng Kung University
    National Cheng Kung University Hospital
    National Cheng Kung University
    Chi Mei Hospital
    Department of Health and Nutrition, Chia Nan University of Pharmacy & Science
    National Health Research Institutes - Taiwan
    National Cheng Kung University
    National Cheng Kung University Hospital
    National Cheng Kung University
    National Cheng Kung University Hospital
    Fu Jen Catholic University
    Fu Jen Catholic University Hospital
    Fu Jen Catholic University
    National Cheng Kung University
    National Taiwan University
    National Taiwan University Hospital
    National Taiwan University
    關鍵字: desorption ionization-time
    mass-spectrometry systems
    broth microdilution
    candida-haemulonii
    bruker biotyper
    fungemia
    profile
    agents
    ms
    日期: 2022
    上傳時間: 2023-12-11 14:01:33 (UTC+8)
    出版者: ELSEVIER TAIWAN
    摘要: Background/Purpose: Accurate identification of Candida species is increasingly important in the era of emergence of Candida auris. We aimed to compare the identification performance of two matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF MS) systems (Vitek MS and Bruker biotyper MS) and an oligonucleotide array for uncommon blood yeast isolates and demonstrate the susceptibilities among those isolates. Method: Candida species isolates from blood culture other than Candida albicans, Candida parapsilosis, Candida tropicalis, Candida glabrata, and Candida krusei identified by biochemical methods were collected from multiple hospitals and further identified by an oligonucleotide array based on the internal transcribed spacer-1 (ITS-1) and ITS-2 sequences of the rRNA genes, Vitek MS and Bruker biotyper MS. The minimal inhibitory concentrations (MICs) of these clinical isolates were determined by the Sensititre YeastOne (SYO) system. Results: Among 136 isolates, Candida guilliermondii was most common (52, 38.2%), followed by C. lusitaniae (13, 9.6%) and C. haemulonii (12, 8.8%). The oligonucleotide array, Vitek MS and Bruker biotyper MS correctly identified 89.7% (122), 90.4% (123), and 92.6% (126) of these isolates, respectively. Elevated minimal inhibitory concentrations (MICs) of fluconazole were observed for C. haemulonii (MIC90: 256 mg/L), and C. guilliermondii (MIC90: 16 mg/L) with 28.4% of uncommon Candida isolates with MIC >= 8 mg/L. Conclusions: For uncommon Candida species, the unmet need for current databases of two commercial MALDI-TOF MS systems is highlighted, and the oligonucleotide array may serve as a supplement. Copyright (C) 2021, Taiwan Society of Microbiology. Published by Elsevier Taiwan LLC.
    關聯: JOURNAL OF MICROBIOLOGY IMMUNOLOGY AND INFECTION, v.55, Issue 1, pp.130-137
    顯示於類別:[保健營養系(所) ] 期刊論文

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