期刊文献+

细菌耐药性扩散的机制 被引量:40

Mechanism of Dissemination of Antibiotic Resistance
在线阅读 下载PDF
导出
摘要 细菌耐药性是 2 0世纪留给医学的难题。自然界中各种细菌广泛存在 ,相互联系 ;细菌具有多种在种内或种间进行自主转移或诱动转移的遗传因子如质粒、转座子、噬菌体等 ;质粒、转座子上还有募集和表达外源基因的整合子 ;在不断变化的环境中 ,细菌的质粒、转座子、噬菌体等通过接合、转化及转导等方式 ,相互间交换所携带的一些基因 ,可使菌群更好地适应环境。这是细菌在长期进化过程中所获得的生存本领。耐药基因最初可能起源于少数抗生素产生菌或细菌自身基因的随机突变 ,在抗生素广泛应用所形成的选择压力胁迫下 ,没有机会获得耐药基因的细菌不得不退出竞争 ,而有机会通过菌间交换获得耐药基因的细菌却能自如地生存、繁衍成为耐药亚群。在抗生素选择压力的持续胁迫下 ,交流 -选择过程不断重复 。 The widespread use of antibiotics in humans and animals has raised several concerns related to human and animal health.The principal area of concern has been the increasing emergence of antibiotic resistance phenotypes in both clinically relevant strains and normal commensal microbiots.The aim of this paper was to get some insight into the mechanism of dissemination of antibiotic resistance in bacteria,which has not yet been elucidated well,by the review of up-to-date knowledge on these aspect.
出处 《动物医学进展》 CSCD 2003年第4期6-11,共6页 Progress In Veterinary Medicine
基金 国家自然科学基金重点项目 ( 3 0 13 0 140 )
关键词 细菌耐药性 扩散机制 自主转移 诱动转移 遗传因子 抗生素 抗菌药物 antibiotic antimicrobial agents resistant bacteria resistance
  • 相关文献

参考文献21

  • 1张小林,汪复.抗菌药物对肠道大肠杆菌耐药性的影响[J].中华传染病杂志,1998,16(1):52-53. 被引量:14
  • 2Brien O T F,Mayer K H, Hopkins J D,et al. Antibiotic Resistance Genes:Ecology,Transfer,and Expression[M]. Cold Spring Harbor Laboratory,Cold Spring Harbor,NY. 1986:3-15.
  • 3Kadavy D R,Hornby J-M, Haverkost T,et al. Natural antibiotic resistance of bacteria isolated from larvae of the oil fly, Helaeomyia petrolei[J]. Appl Environ Microbiol,2000,66,4615-4619.
  • 4Benveniste R, Davies J. Aminoglyeoside antibiotieinaetivating enzymes in aetinomycetes similar to those present in clinical isolates of antibiotic-resistant bacteria[J]. Proe Natl Aead Sci, 1973.70:2276-2280.
  • 5Mazel D,Davies J. Antibiotic resistance in microbes[J]. Cell Mol Life Sci, 1999,56:742-754.
  • 6Bunny K L, Hall R M, Stokes H W. New mobile gene cassettes containing an aminoglycoside resistance gene, aacA7, and a chloramphenicol resistance gene, catB3, in an integron in pBWH301[J]. Antimicrob Agents Chemother, 1995,39 : 686-693.
  • 7Abigail A Salyers and Carlos F,Amabile-Cuevas. Why are antibiotic resistance genes so resistant to elimination[J]. Antimicrobial Agents and Chemotherapy, 1997,41(11) : 2321-2325.
  • 8Courvalin P. Transfer of antibiotic resistance genes between grampositive and gram-negative bacteria [J ]. Antimicrob Agents Chemother, 1994,38 : 1447-1451.
  • 9Nielsen K M, Bones A M, van Elsas J D. Induced natural transformation of Acinetobacter calcoaceticus in soil microcosms [J].Appl Environ Microbiol, 1997,63 : 3972-3977.
  • 10Nielsen K M, van Weereh M D, Berg T N,et al. Natural transformation and availability of transforming DNA to Acinetobacter calcoaceticus in soil microcosms [J]. Appl Environ Microbiol,1997,63 : 1945-1952.

共引文献13

同被引文献458

引证文献40

二级引证文献323

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