耐甲氧西林溶血葡萄球菌耐药性及耐药基因研究
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黄峰

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R378.1+1

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Drugresistance and drugresistant genes of methicillinresistant Staphylococcus haemolyticus
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    摘要:

    目的了解安徽省宿州地区临床分离的耐甲氧西林溶血葡萄球菌(MRSH)耐药性、耐药基因携带状况及诱导型克林霉素耐药的发生率。方法采用ATB STAPH5药敏试验板微量肉汤法对42株MRSH进行16种抗菌药物敏感性测定;聚合酶链反应(PCR)法检测MRSH中mecA、qacA/B/C、qacA、ermA/B/C、ermB、TetM耐药基因;D试验检测诱导型克林霉素耐药表型。结果42株MRSH对万古霉素、呋喃妥因100%敏感,对利福平、米诺环素、奎奴普丁/达福普汀、替考拉宁的敏感率>90%;而对庆大霉素、诺氟沙星、左氧氟沙星的耐药率>70%,对青霉素、苯唑西林、红霉素耐药率为100.00%。mecA、qacA/B/C、qacA、ermA/B/C、ermB、TetM基因阳性率分别为100.00%(42株)、64.29%(27株)、59.52%(25株)、40.48%(17株)、28.57%(12株)、9.52%(4株)。D试验阳性13株,诱导性耐药占30.95%。结论安徽宿州地区分离的MRSH呈多重耐药性,临床治疗应根据药敏试验结果合理选用抗菌药物。

    Abstract:

    ObjectiveTo investigate the drugresistance, drugresistant genes and prevalence of reducible clindamycin resistance of methicillinresistant Staphylococcus haemolyticus (MRSH) in Suzhou district of Anhui province.MethodsSusceptibility of 42 MRSH isolates to 16 kinds of antimicrobial agents were performed with ATB STAPH5 strip microdilute testing; drugresistant genes mecA,qacA/B/C,qacA,ermA/B/C,ermB and TetM in MRSH were detected with polymerase chain reaction; inducible clindamycin resistance was detected with Dtest.ResultsSensitive rates of 42 MRSH isolates to vancomycin and nitrofurantoin were both 100.00%, sensitive rates to rifampicin, minocycline, quinupristin/dalfopristin and teicoplanin were all >90%; resistant rates to gentamicin, norfloxacin and levofloxacin were all >70%, resistant rates to penicillin,oxacillin and erythromycin were all 100.00%. The positive rate of mecA,qacA/B/C, qacA, ermA/B/C, ermB and TetM gene was 100.00%(42 isolates), 64.29%(27), 59.52%(25), 40.48%(17), 28.57%(12) and 9.52%(4) respectively. 13 MRSH isolates were Dtest positive,30.95% of which was inducible drugresistance.ConclusionMRSH isolated from Suzhou district of Anhui province showed multidrug resistance, antimicrobial agents should be chosen rationally according to antimicrobial susceptibility testing results.

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黄峰,秦淑国,边其侠,等.耐甲氧西林溶血葡萄球菌耐药性及耐药基因研究[J]. 中国感染控制杂志,2012,11(2):91-96.
HUANG Feng, QIN Shuguo, BIAN Qixia, et al. Drugresistance and drugresistant genes of methicillinresistant Staphylococcus haemolyticus[J]. Chin J Infect Control, 2012,11(2):91-96.

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  • 收稿日期:2011-02-28
  • 最后修改日期:2011-05-07
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  • 在线发布日期: 2012-03-31
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