期刊文献+

聚集性大肠埃希菌生物膜形成及毒力基因型研究 被引量:5

Study on virulence genotypes and bio-film formation of Entero-aggregative Escherichia coli
原文传递
导出
摘要 目的:通过肠道门诊标本检出的聚集性大肠埃希菌,研究其相关致病因子的毒力基因。方法:使用生物膜形成试验筛检聚集性大肠埃希菌,获得菌株后,进行转译激活因子基因,CVD432质粒基因,聚集性大肠埃希菌Ⅰ型鞭毛基因、Ⅱ型鞭毛基因、Ⅲ型鞭毛基因、Ⅳ菌毛基因,质粒编码毒素基因,聚集性大肠埃希菌耐热性肠毒素基因等各种基因检测,研究不同基因的分布和生物膜实验的相关性。结果:可以通过生物膜形成试验筛检聚集性大肠埃希菌,并根据毒力基因分型。结论:生物膜形成实验作为利用生物学特性筛检聚集性大肠埃希菌有一定的应用价值,聚集性大肠埃希菌的生物膜的形成与其各类毒力基因有不同程度的相关性。 Objective:To study the association of Enteroaggregative Escherichia coli(EAggEC) virulence genes and bio-film formation.Methods: Biofilm formation test was used to screen EAgg EC and PCR was used to detect Agg R,AAT(CVD432),agga(Aggregative fimbria I),aafa(AAF/II),agg3a(AAF/III),pilS(Type IV pilus),pet(Plasmid-encoded toxin),eastA(EAggEC heat-stable toxin) genes and the relation between bio-film formation and virulence genes was analyzed.Results: Bio-film formation test can be used for screening of EAgg EC,which can be classified by virulence genotyping.Conclusion: Biofilm formation test is useful to screen Enteroaggregative Escherichia coli(EAggEC),and it has correlation with every virulence gene to varying degrees.
出处 《中国卫生检验杂志》 北大核心 2012年第7期1487-1490,1494,共5页 Chinese Journal of Health Laboratory Technology
关键词 聚集性大肠埃希菌 生物膜形成 毒力基因分型 Enteroaggregative Escherichia coli Bio-film formation Virulence genotype
  • 相关文献

参考文献12

  • 1Huang DB, Okhuysen PC, Jiang ZD, et al. Enteroaggregative Esche- richia coli: An emerging enteric pathogen [ J ]. Am J Gastroenterol, 2004, 99(5) :383 - 389. 被引量:1
  • 2Costerton JW, PS Stewart, EP Greenberg. Bacterial biofilms: A com- mon cause of persistent infections [ J ]. Science, 1999, 284 (7) : 1318 - 1322. 被引量:1
  • 3Nataro JP, Deng Y, Maneval DR, et al. Aggregative adherence fimbri- ae I of Enteroaggregative Escherichia coli mediate adherence to HEp - 2 cells and hemagglutination of human erythroeytes [ J ]. Infect Immun, 1992, 60(5) :2297 - 2304. 被引量:1
  • 4Czeczulin JR, Balepur S, Hicks S, et al. Aggregative adherence tim-bria Ⅱ, A second fimbrial antigen mediating aggregative adherence in Enteroaggregative Escherichia coli [ J ]. Infect Immun, 1997, 65 ( 2 ) : 4135 - 4145. 被引量:1
  • 5Bernier C, Gounon P, Le Bouguenec C. Identification of an aggrega- tive adhesion fimbria (AAF) type III- encoding operon in Enteroag- gregative Escherichia coli as a sensitive probe for detecting the AAF - Encoding operun family [ J ]. Infection and Immunity, 2002, 70 ( 1 ) : 4302 - 4311. 被引量:1
  • 6Pereira AL, Ferraz LR, Silva RS,, et al. Enteroaggregative Escherichia coli virulence markers: Positive association with distinct clinical char- aeteristics and segregation into 3 Enteropathogenic E. coli serogroups [J]. J Infect Dis, 2007, 195(4) :366 - 374. 被引量:1
  • 7Czeczulin JR, TS Whittam, IR Henderson, et al. Phylogenetic analy- sis of Enteroaggregative and diffusely Adherent Escherichia coli [ J ]. Infect Immun, 1999, 67 (5) :2692 - 2699. 被引量:1
  • 8Henderson IR, S Hicks, F Navarro - Garcia, et al. Involvement of the Enteroaggregative Escherichia coli Plasmid - encoded toxin in causing human intestinal damage[ J ]. Infect Immun, 1999, 67 ( 11 ) :5338 - 5344. 被引量:1
  • 9Sheikh J, S Hicks, M Dall'Agnol, et al. Roles for Fis and YafK in biofilm formation by Enteroaggregative Escherichia coli[ J]. Mol Micro- biol, 2001, 41(8) :983 -997. 被引量:1
  • 10Wakimoto N, J Nishi, J Sheikh, et al. Quantitative biofilm assay u- sing a microtiter plate to screen for Enteroaggregative Escherichia coli [J]. Am J Trop Med Hyg, 2004, 71 (6) :687 -690. 被引量:1

同被引文献36

引证文献5

二级引证文献17

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部