國家衛生研究院 NHRI:Item 3990099045/13248
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    题名: Species identification and antifungal susceptibility of uncommon blood yeast isolates
    作者: Li, MC;Tang, HJ;Wu, CJ;Wang, SW;Su, SL;Liu, WL;Ko, WC;Chen, YC
    贡献者: National Institute of Infectious Diseases and Vaccinology
    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 (MIC(90): 256 mg/L), and C. guilliermondii (MIC(90): 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.
    日期: 2022-02
    關聯: Journal of Microbiology, Immunology, and Infection. 2022 Feb;55(1):130-137.
    Link to: http://dx.doi.org/10.1016/j.jmii.2021.01.009
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=1684-1182&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000760190100017
    Cited Times(Scopus): https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85101396300
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