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院内不同时间分离的多重耐药鲍曼不动杆菌氨基糖苷类修饰酶基因和16SrRNA甲基化酶基因的研究
引用本文:赵书平,包健,姜梅杰. 院内不同时间分离的多重耐药鲍曼不动杆菌氨基糖苷类修饰酶基因和16SrRNA甲基化酶基因的研究[J]. 中华实验和临床感染病杂志(电子版), 2013, 0(6): 63-66
作者姓名:赵书平  包健  姜梅杰
作者单位:[1]泰安中心医院检验科,泰安市271000 [2]莱钢集团莱芜矿业有限公司医院外科,泰安市271000
摘    要:目的:调查氨基糖苷类修饰酶基因(AMES)和16S rRNA甲基化酶基因在院内不同时间分离的多重耐药鲍曼不动杆菌中的存在情况。方法采用PCR法检测aac(3)-Ⅰ、aac(3)-Ⅱ、aac (3)-Ⅲ、aac(3)-Ⅳ、aac(6′)-Ⅰ、aac(6′)-Ⅱ、aph(3′)-Ⅵ、ant(3″)-Ⅰ、ant(2″)-Ⅰ和16S rRNA甲基化酶基因在临床不同时间分离的88株多重耐药鲍曼不动杆菌中的存在情况。结果2010年6月至2011年6月临床分离的46株多重耐药鲍曼不动杆菌中,41株(89.1%)含ant(3″)-Ⅰ基因,33株(71.7%)含aac(3)-Ⅰ基因,2株(4.3%)含aac(3)-Ⅱ基因,1株(2.2%)含aac(6′)-Ⅱ基因,1株(2.2%)含aph(3′)-Ⅵ基因,40株(87%)含armA基因。2012年12月至2013年1月本院临床分离的42株多重耐药鲍曼不动杆菌中,41株(97.7%)含ant(3″)-Ⅰ基因,34株(81%)含aac(3)-Ⅰ基因,7株(16.7%)含aac(6′)-Ⅰ基因,16株(38.1%)含armA基因。结论院内不同时间分离的多重耐药鲍曼不动杆菌ant(3″)-Ⅰ、aac(3)-Ⅰ和armA基因检出率一直很高,对其氨基糖苷类耐药与AMES和16S rRNA甲基化酶基因有关。

关 键 词:多重耐药  鲍曼不动杆菌  氨基糖苷类修饰酶  16SrRNA甲基化酶

Study on the genes of aminoglycoside modifying enzymes and 16S rRNA methylases in multi-drug resistant Acinetobacter baumannii isolated in hospital at different times
ZHAO Shu-ping,BAO Jian,JIANG Mei-jie. Study on the genes of aminoglycoside modifying enzymes and 16S rRNA methylases in multi-drug resistant Acinetobacter baumannii isolated in hospital at different times[J]. Chinese Journal of Experimental and Clinical Infectious Diseases(Electronic Version), 2013, 0(6): 63-66
Authors:ZHAO Shu-ping  BAO Jian  JIANG Mei-jie
Affiliation:(Central Hospltal of Talan, Taian 271000, China)
Abstract:Objective To investigate the prevalence of genes encoding aminoglycoside modifying enzymes and 16S rRNA methylases in multi-drug resistant Acinetobacter baumannii isolated in hospital at different times. Methods The genes of aac (3)-Ⅰ, aac (3)-Ⅱ, aac (3)-Ⅲ, aac (3)-Ⅳ, aac (6′)-Ⅰ, aac (6′)-Ⅱ, aph (3′)-Ⅵ, ant (3″)-Ⅰ, ant (2″)-Ⅰand 16S rRNA methylases in the samples of 88 multi-drug resistant Acinetobacter baumannii stains isolated at different times were analyzed by polymerase chain reaction (PCR). Results Among the 46 multi-drug resistant Acinetobacter baumannii stains collected from June 2010 to June 2011, aminoglycoside modifying enzymes gene ant (3″)-Ⅰwas found in 41 strains (89.1%), aac (3)-Ⅰwas identified in 33 strains (71.7%), aac (3)-Ⅱ in 2 strains (4.3%), aac (6′)-Ⅱ in 1 strain (2.2%), aph (3′)-Ⅵ in 1 strain (2.2%), and 40 strains (87.0%) carried armA gene. Among the 42 multi-drug resistant Acinetobacter baumannii stains collected from December 2012 to January 2013, aminoglycoside modifying enzymes gene ant (3″)-Ⅰwas found in 41 strains (97.7%), aac (3)-Ⅰwas identified in 34 strains (81.0%), aac(6′)-Ⅰ in 7 strains (16.7%), and 16 strains (38.1%) carried armA gene. Conclusions The detection rate of the genes as ant (3″)-Ⅰ, aac (3)-Ⅰand armA has been high in multi-drug resistant Acinetobacter baumannii isolated in hospital at different times, and the aminoglycoside resistance of them is closed with the genes encoding aminoglycoside modifying enzymes and 16S rRNA methylases.
Keywords:Multi-drug resistant  Acinetobacter baumannii  Aminoglycoside modifying enzyme  16S rRNA methylase
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