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鲍曼不动杆菌的耐药性及β-内酰胺酶基因的研究 被引量:14

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摘要 目的调查鲍曼不动杆菌耐药特点及β-内酰胺酶基因类型.方法用Phoenix-100系统对细菌进行鉴定和药敏试验.用琼脂稀释法测定头孢噻肟等6种抗生素的最低抑菌浓度;用PCR法检测β-内酰胺酶基因,并对耐药基因测序分析.结果247株鲍曼不动杆菌对亚胺培南和美洛培南耐药率仅为3.2%和4.1%,而对阿莫西林/克拉维酸、哌拉西林/他唑巴坦等其余14种抗生素耐药率为31.9%~67.2%.20株多重耐药性鲍曼不动杆菌中17株具TEM基因,任选3株经DNA测序为TEM-1型基因,与GeneBank(χ 54604)比较,共有4处同义突变.未检出SHV、OXA、CTX-M、PER和VEB型β-内酰胺酶基因.结论本地区鲍曼不动杆菌对β-内酰胺类抗生素的耐药除与TEM型耐药基因有关外,可能还与其他耐药机制有关.
出处 《临床检验杂志》 CAS CSCD 北大核心 2005年第4期275-276,共2页 Chinese Journal of Clinical Laboratory Science
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