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中国真菌学杂志 2011, Vol. 6  Issue (3): 149-153.

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应用CLSI M38-A2方案测定须癣毛癣菌对抗真菌药物敏感性

胡小平, 万喆, 李若瑜   

  1. 北京大学第一医院皮肤性病科真菌室、北京大学真菌和真菌病研究中心, 北京, 100034
  • 收稿日期:2010-12-06 出版日期:2011-06-28 发布日期:2011-06-28
  • 通讯作者: 李若瑜,E-mail:lry0660@gmail.com E-mail:lry0660@gmail.com
  • 作者简介:胡小平,男(汉族),硕士,主治医师.E-mail:xiaoping7752@sohu.com
  • 基金资助:
    卫生部公益项目重点基金(200802026);科技部十一五传染病重大专项课题(20082x10004-002)

Antifungal susceptibilities of 44 isolates of Trichophyton mentagrophytes isolates evaluated with CLSI M38-A2 scheme

HU Xiao-ping, WAN Zhe, LI Ruo-yu   

  1. Departmemt of Dermatovenerology, Peking University First Hospital, and Research Center for Medical Mycology, Beijing 100034, China
  • Received:2010-12-06 Online:2011-06-28 Published:2011-06-28

摘要: 目的 对我国代表地区须癣毛癣菌临床分离株作抗真菌药物敏感性测定,进一步验证CLSI的M38-A2方案。方法 选取我国南北方8个省市地区经表型和分子生物学鉴定的趾间型毛癣菌38株和苯海姆节皮菌6株,采用M38-A2方案测定氟康唑、伊曲康唑、伏立康唑、特比萘芬、灰黄霉素、联苯苄唑、环吡酮胺和阿莫罗芬等8种常见抗真菌药物的最小抑菌浓度(minimal inhibitory concentration,MIC)。结果 氟康唑、伊曲康唑、伏立康唑、特比萘芬、灰黄霉素、联苯苄唑、环吡酮胺和阿莫罗芬对趾间型毛癣菌株的MIC值(μg/mL)范围分别为0.25~32、0.031 2~1、0.015 6~0.062 5、0.000 937~0.00781、0.062 5~1、0.031 2~2、1~2、0.007 81~0.062 5;对苯海姆节皮菌株的MIC值(μg/mL)范围分别为≥64、2、0.25~0.5、0.000 937~0.003 81、1、2~4、1~2、0.031 2~0.062 5。不同抗真菌药物对趾间型毛癣菌及苯海姆节皮菌的药敏有明显差别(P<0.001);趾间型毛癣菌和苯海姆节皮菌对伊曲康唑、灰黄霉素、环吡酮胺、伏立康唑和氟康唑的药敏差异有统计学意义,对特比萘芬、阿莫罗芬和联苯苄唑的药敏差异无统计学意义。结论 趾间型毛癣菌和苯海姆节皮菌之间对伊曲康唑、灰黄霉素、环吡酮胺、伏立康唑和氟康唑的药敏有明显差异。M38-A2方案有较好的重复性和稳定性,适合用来体外测定须癣毛癣菌对抗真菌药物的敏感性。

关键词: 须癣毛癣菌, 药敏试验, M38-A2方案

Abstract: Objective To determine the susceptibilities of Trichophyton mentagrophytes strains and to evaluate the M38-A2 scheme of CLSI.Methods Thirty-eight isolates of Trichophyton interdigitale(T.interdigitale) and 6 isolates of Trichophyton anamorph of A.benhamiae strains from 8 different regions of China were included and the MICs to fluconazol(FLU),itraconazole(ITR), voriconazole(VIR), terbinafine(TER),griseofulvin(GRI),ciclopiroxolamine(CIC),bifonazole(BIF),and amorofine(AMO) were determined by M38-A2 scheme.Results MICs(μg/mL) of T.interdigitale and A.benhamiae to FLU,ITR,VIR,TER,GRI,CIC,BIF,AMO were 0.25~32,0.031 2~1,0.015 6~0.062 5,0.000 937~0.007 81,0.062 5~1,0.031 2~2,1~2,0.007 81~0.062 5(T.interdigitale) and ≥64,2,0.25~0.5,0.000 937~0.003 81,1,2~4,1~2,0.031 2~0.062 5(A.benhamiae) respectively.There were significant differences in the sensitivities to FLU,ITR,VIR,GRI and CIC,but no significants were found in the sensitivities to TER,AMO and BIF.Conclusions M38-A2 scheme could be applied to determine the susceptibility of T.mentagrophytes to antifungal drugs with good reproducibility and feasibility.

Key words: Trichophyton mentagrophytes, susceptibility test, M38-A2 scheme

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