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首页> 外文期刊>Journal of Clinical Microbiology >Low Concentrations of Mupirocin in the Pharynx following Intranasal Application May Contribute to Mupirocin Resistance in Methicillin-Resistant Staphylococcus aureus
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Low Concentrations of Mupirocin in the Pharynx following Intranasal Application May Contribute to Mupirocin Resistance in Methicillin-Resistant Staphylococcus aureus

机译:鼻内应用后咽中低浓度的莫匹罗星可能导致耐甲氧西林金黄色葡萄球菌的莫匹罗星耐药

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We describe a patient with methicillin-resistantStaphylococcus aureus (MRSA) colonizing the pharynx. The MIC of mupirocin was 0.25 μg/ml before treatment and increased after treatment to 8 μg/ml. Using pulsed-field gel electrophoresis, we confirmed that the genotypes of MRSA that colonized the pharynx before and after the use of mupirocin were identical. We measured the delivery of mupirocin to the pharynx in three normal volunteers and two patients. Low concentrations of mupirocin were present in the pharynx in all cases 10 min to 3 days after intranasal application. Our data suggested that low concentrations of the drug in the pharynx after intranasal application of mupirocin ointment might explain the selection of mupirocin resistance in MRSA.
机译:我们描述了耐甲氧西林的金黄色葡萄球菌(MRSA)定植在咽部的患者。治疗前莫匹罗星的MIC为0.25μg/ ml,治疗后增加至8μg/ ml。使用脉冲场凝胶电泳,我们确认了在使用莫匹罗星之前和之后在咽部定殖的MRSA的基因型是相​​同的。我们在三名正常志愿者和两名患者中测量了莫匹罗星向咽的递送。鼻内应用后10分钟至3天,所有病例的咽中都存在低浓度的莫匹罗星。我们的数据表明,鼻内应用莫匹罗星软膏后咽部药物浓度低可能解释了MRSA对莫匹罗星耐药的选择。

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