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甲氧西林耐药溶血葡萄球菌糖肽类耐药突变株体外筛选 被引量:10

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摘要 目的:调查在体外糖肽类选择性压力下,溶血葡萄球菌对糖肽类敏感性的变化。方法:琼脂稀释法检测万古霉素、替考拉宁和苯唑西林对6株溶血葡萄球菌的最低抑菌浓度(MIC),连续浓度梯度法体外筛选万古霉素和替考拉宁耐药突变株。结果:6株甲氧西林耐药溶血葡萄球菌(MRSH)均筛选出替考拉宁耐药突变株(MIC=32~128μg/mL),未筛选出万古霉素耐药突变株。万古霉素对6株替考拉宁耐药突变株仍保持较好的抗菌活性(MIC=2~4μg/mL)。结论:万古霉素对MRSH抗菌活性稳定,在抗生素压力下不易筛选出耐药株突变株,替考拉宁对MRSH抗菌活性很不稳定,在抗生素压力下极易筛选出耐药株突变株。
出处 《实用医学杂志》 CAS 2008年第6期1044-1045,共2页 The Journal of Practical Medicine
基金 深圳市科技局资助项目(编号:200602085)
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