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使用Sensititre YeastOne比色法抗真菌鉴定板与NCCLS M27 - A2参考方法对新型抗真菌药物针对念珠菌属临床分离株进行多中心比较。

Multicenter comparison of the Sensititre YeastOne colorimetric antifungal panel with the NCCLS M27-A2 reference method for testing new antifungal agents against clinical isolates of Candida spp.

作者信息

Espinel-Ingroff A, Pfaller M, Messer S A, Knapp C C, Holliday N, Killian S B

机构信息

VCU Medical Center, Richmond, Virginia 23298-0049, USA.

出版信息

J Clin Microbiol. 2004 Feb;42(2):718-21. doi: 10.1128/JCM.42.2.718-721.2004.

Abstract

A multicenter (three centers) study compared MICs obtained by the Sensititre YeastOne Colorimetric Antifungal plate to reference microdilution broth (NCCLS M27-A2 document) MICs of three new triazoles (posaconazole, ravuconazole, and voriconazole) and the echinocandin caspofungin acetate for 100 isolates of Candida spp. In addition, amphotericin B and fluconazole were tested as control drugs. Colorimetric MICs of caspofungin and amphotericin B corresponded to the first blue well (no growth), and MICs of the other agents corresponded to the first slightly purple or blue well. Two comparisons of MIC pairs by the two methods were evaluated: 24-h colorimetric MICs were compared to NCCLS MICs at 24 and at 48 h. The interlaboratory reproducibility of YeastOne and reference MICs was also examined. The best performance of the YeastOne plate was with 24-h MICs (overall, 95 to 99% agreement) for all the species and antifungal agents. These results suggest the potential value of the YeastOne plate for use in the clinical laboratory for the four new antifungal agents evaluated.

摘要

一项多中心(三个中心)研究比较了使用Sensititre YeastOne比色抗真菌药敏板获得的最小抑菌浓度(MIC)与参考微量稀释肉汤法(NCCLS M27 - A2文件)测定的三种新型三唑类药物(泊沙康唑、雷夫康唑和伏立康唑)以及棘白菌素类药物醋酸卡泊芬净对100株念珠菌属菌株的MIC。此外,两性霉素B和氟康唑作为对照药物进行了测试。卡泊芬净和两性霉素B的比色MIC对应于第一个蓝色孔(无生长),其他药物的MIC对应于第一个略呈紫色或蓝色的孔。评估了两种方法对MIC值对的两种比较:将24小时比色MIC与24小时和48小时的NCCLS MIC进行比较。还检查了YeastOne和参考MIC在不同实验室间的可重复性。YeastOne药敏板在所有菌种和抗真菌药物的24小时MIC测定中表现最佳(总体一致性为95%至99%)。这些结果表明YeastOne药敏板在临床实验室用于评估这四种新型抗真菌药物具有潜在价值。

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