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肺炎克雷伯菌25株PFGE基因分型和药敏表型的比较 被引量:3

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摘要 目的:探讨肺炎克雷伯菌耐药表型和基因组型之间的关系。方法:临床菌株用VITEK60仪器鉴定,以双纸片协同试验(DDST)筛选出产超广谱β内酰胺酶肺炎克雷伯菌(ESBLs-KP)11株和不产超广谱β内酰胺酶肺炎克雷伯菌(NESBLs-KP)14株;用XbaⅠ酶对各试验菌株进行限制性酶切,脉冲场凝胶电泳(PFGE)分离酶切片段,FingerprintingⅡ指纹图谱分析软件分析PFGE图谱。结果:菌株间AST结果相差较大,并可在较短时间内发生耐药变迁;筛选出产ESBLs11株,占实验菌株的44%;PFGE图谱分析,将肺炎克雷伯菌分为6群,相似性系数为52.63%~78.24%,还有1株不能分型。结论:在用于ESBLs-KP治疗时,碳青霉烯类抗生素是首选应用的抗生素;PFGE图谱分析,产ESBLs菌株和不产ESBLs分在各个群中,没有发现特异的ESBLs条带,但在同一群中,产ESBLs的菌株常为同一亚群,不产ESBLs的菌株常为另一亚群;肺炎克雷伯菌的耐药表型和PFGE的基因分型可以表现为一致,也可以表现不同。
出处 《实用医学杂志》 CAS 2005年第10期1103-1105,共3页 The Journal of Practical Medicine
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参考文献6

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