自溶素基因与表皮葡萄球菌生物膜形成相关性研究

目的研究自溶素(atlE)基因与表皮葡萄球菌生物膜形成的相关性。方法收集2015年6月至2016年6月该院临床分离的表皮葡萄球菌64株进行研究,用生物膜形成试验检测细菌生物膜,采用聚合酶链反应扩增atlE基因,分析atlE基因与表皮葡萄球菌生物膜形成的相关性。结果检出生物膜阳性菌株24株,检出率为37.5%;检出atlE基因菌株31株,检出率为48.4%;atlE基因与表皮葡萄球菌生物膜形成有明显的相关性(P0.05)。结论表皮葡萄球菌有生物膜形成能力,atlE基因与表皮葡萄球菌生物膜形成相关。

Correlation between atlE gene and biofilm formation of Staphylococcus epidermidis

Objective To investigate the correlation between atlE gene and biofilm formation of Staphylococcus epidermidis . Methods 64 strains of clinically isolated Staphylococcus epidermidis in our hospital from June 2015 to June 2016 were collected . The biofilm formation test was used to detect bacterial biofilm .PCR was use to amplify atlE gene .Then the correlation between the atlE gene with biofilm formation was analyzed .Results 24 strains of biofilm positive bacterium were detected ,the detection rate was 37 .5% ;31 strains of atlE gene was detected ,the detection rate was 48 .4% ;atlE gene was significantly correlated to biofilm formation(P＜0 .05) .Conclusion Staphylococcus epidermidis has the ability to form biofilm ;atlE gene has a relation with biofilm formation of Staphylococcus epidermidis .