检验医学 ›› 2014, Vol. 29 ›› Issue (12): 1234-1237.

• 基础研究·论著 • 上一篇    下一篇

江苏海安地区分离的金黄色葡萄球菌的分子特征及其耐药性分析

董德平1, 顾飞飞2, 陈旭2, 肖淑珍2, 韩立中2, 倪语星2   

  1. 1.南通大学附属海安医院,江苏 海安 226600;2. 上海交通大学医学院附属瑞金医院,上海 200025
  • 收稿日期:2014-07-30 出版日期:2014-12-30 发布日期:2015-01-14
  • 通讯作者: 韩立中,联系电话:021-64370045-600632。
  • 作者简介:董德平,男,1968年生,学士,副主任技师,主要从事临床微生物检验工作。
  • 基金资助:

    国家自然科学基金资助项目(81472010);上海市科学技术委员会科研计划项目(14140900602);卫生公益性行业科研专项(201002021)

Analysis on the molecular characteristics and drug resistance of Staphylococcus aureus isolated from Haian,Jiangsu

DONG Deping1, GU Feifei2, CHEN Xu2, XIAO Shuzhen2, HAN Lizhong2, NI Yuxing2   

  1. 1. Haian Hospital, Nantong University, Jiangsu Haian 226600, China; 2. Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
  • Received:2014-07-30 Online:2014-12-30 Published:2015-01-14

摘要:

目的 分析江苏海安地区分离的金黄色葡萄球菌的分子生物学特征及其耐药性。方法 收集20117月至20127月江苏海安地区分离的金黄色葡萄球菌43株,采用生化表型及血浆凝固酶试验鉴定菌株,纸片扩散法和肉汤稀释法检测菌株对12种抗菌药物的敏感性,聚合酶链反应(PCR)检测PV杀白细胞素(PVL)基因,采用多重PCR进行葡萄球菌染色体mec基因盒(SCCmec)分型,运用PCR及序列分析进行金黄色葡萄球菌A蛋白(SPA)基因分型。结果 43株金黄色葡萄球菌中有21株为耐甲氧西林金黄色葡萄球菌(MRSA),t030-Ⅲ为主要流行克隆,该克隆有2个主要的耐药谱型,即P-CX-CN-TOB-E-CC-RAP-CX-CN-TOB-RA结论 江苏海安地区MRSA分离率较高,克隆流行特点明显。

关键词: 金黄色葡萄球菌, 耐甲氧西林金黄色葡萄球菌, 分子生物学特征, 耐药性

Abstract:

Objective To analyze the molecular characteristics and drug resistance of Staphylococcus aureus isolated from Haian Jiangsu. Methods A total of 43 isolates of Staphylococcus aureus were collected in Haian from July 2011 to July 2012 and the isolates were identified by biochemical phenotypic test and plasma coagulase test. Antimicrobial susceptibility test to 12 kinds of antibiotics was performed by disk diffusion and broth dilution methods. Panton-Valentine leukocidinPVL gene was detected by polymerase chain reactionPCR), Staphylococcal cassette chromosome mecSCCmec typing was conducted according to multiplex PCR and Staphylococcus protein ASPA genotyping was performed by PCR and sequencing. Results A total of 21 isolates of methicillin-resistant Staphylococcus aureusMRSA were detected. t030- was the major MRSA clone including 2 resistant profiles P-CX-CN-TOB-E-CC-RA and P-CX-CN-TOB-RA. Conclusions The isolation rate of MRSA is high and clone spread is the main reason of resistance prevalence.

Key words: Methicillin-resistant , Molecular biological characteristic, Drug resistance

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