LAMP快速检测沙门菌invA基因的方法建立与应用

被引:8
作者
鲁勇 [1 ]
李红海 [1 ]
陈丽 [1 ]
李向阳 [2 ]
杨锦红 [2 ]
机构
[1] 温州医学院
[2] 温州医学院附属第二医院检验科
关键词
沙门菌; 环介导等温扩增(LAMP); 核酸;
D O I
暂无
中图分类号
R450 [];
学科分类号
摘要
目的:建立一种环介导等温扩增(loop-mediated isothermal amplification,LAMP)反应快速检测沙门菌的方法。方法:根据美国国立卫生研究院基因序列数据库(GenBank)上的鼠伤寒沙门菌的特异invA和fimA(登录号:M90846和M18283)基因序列,设计特异引物,提取标本DNA,然后以LAMP技术扩增invA基因,PCR方法扩增fimA基因,采用琼脂糖电泳观察结果。结果:91份血培养阳性报警瓶,LAMP和PCR法检测出阳性18份,与最终培养结果一致;30份粪便标本,LAMP和PCR法检测出阳性5份,培养阳性3份,LAMP测限达到102CFU/mL。结论:LAMP是一种简便、快速、特异和敏感的检测临床和环境标本中沙门菌的有效方法。
引用
收藏
页码:216 / 218
页数:3
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