RRC ID 47601
著者 Tsukatani T, Suenaga H, Shiga M, Noguchi K, Ishiyama M, Ezoe T, Matsumoto K.
タイトル Comparison of the WST-8 colorimetric method and the CLSI broth microdilution method for susceptibility testing against drug-resistant bacteria.
ジャーナル J Microbiol Methods
Abstract The minimum inhibitory concentrations (MICs) obtained from the susceptibility testing of various bacteria to antibiotics were determined by a colorimetric microbial viability assay based on reduction of a tetrazolium salt {2-(2-methoxy-4-nitrophenyl)-3-(4-nitrophenyl)-5-(2,4-disulfophenyl)-2H-tetrazolium, monosodium salt (WST-8)} via 2-methyl-1,4-napthoquinone as an electron mediator and compared with those obtained by the broth microdilution methods approved by the Clinical and Laboratory Standard Institute (CLSI). Especially for drug-resistant bacteria, the CLSI method at an incubation time of 24h tended to give lower MICs. The extension of incubation time was necessary to obtain consistent MICs for drug-resistant bacteria such as methicillin-resistant Staphylococcus aureus (MRSA), vancomycin-resistant enterococi (VRE) and multi-drug resistant Pseudomonas aeruginosa (MDRP) in the broth microdilution method. There was excellent agreement between the MICs determined after 24h using the WST-8 colorimetric method and those obtained after 48-96 h using the broth microdilution method. The results suggest that the WST-8 colorimetric assay is a useful method for rapid determination of consistent MICs for drug-resistant bacteria.
巻・号 90(3)
ページ 160-6
公開日 2012-9-1
DOI 10.1016/j.mimet.2012.05.001
PII S0167-7012(12)00168-6
PMID 22642794
MeSH Anti-Bacterial Agents / pharmacology* Ciprofloxacin / pharmacology Colorimetry Culture Media Enterococcus faecalis / drug effects Enterococcus faecalis / growth & development Haemophilus influenzae / drug effects Haemophilus influenzae / growth & development Indicator Dilution Techniques Klebsiella pneumoniae / drug effects Klebsiella pneumoniae / growth & development Methicillin-Resistant Staphylococcus aureus / drug effects Methicillin-Resistant Staphylococcus aureus / growth & development Microbial Sensitivity Tests / methods* Microbial Viability / drug effects Pseudomonas aeruginosa / drug effects Pseudomonas aeruginosa / growth & development Vancomycin / pharmacology Vancomycin Resistance* beta-Lactam Resistance* beta-Lactams / pharmacology
IF 1.707
引用数 97
WOS 分野 BIOCHEMICAL RESEARCH METHODS MICROBIOLOGY
リソース情報
一般微生物 JCM 8702 JCM 5803 JCM 6841