The effects of ultraviolet disinfection on vancomycin-resistant Enterococcus faecalis.,Environmental Science: Processes & Impacts

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The effects of ultraviolet disinfection on vancomycin-resistant Enterococcus faecalis.
Environmental Science: Processes & Impacts ( IF 4.3 ) Pub Date : 2020-01-31 , DOI: 10.1039/c9em00435a
Jingyu Wang ₁ , Minghao Sui ₁ , Hongwei Li ₁ , Bojie Yuan ₁

Affiliation

The emergence of vancomycin-resistant Enterococcus faecalis (E. faecalis) in water is threatening the health of human beings. The effect of ultraviolet disinfection on vancomycin-resistant E. faecalis, including the effectiveness, photoreactivation and dark repair of E. faecalis, and the deactivation mechanism were investigated in this work. Ultraviolet disinfection could quickly inactivate the target antibiotic resistant bacterium (ARB), E. faecalis, and it caused damage to the cell membrane and induced the decrease of the total adenosine triphosphate (ATP) content and the superoxide dismutase (SOD) activity significantly (p < 0.05). E. faecalis could reactivate after ultraviolet disinfection especially under light conditions. Furthermore, the removal of the selected antibiotic resistance gene (ARG), vanB, by ultraviolet radiation and the effect on the vancomycin resistance of E. faecalis were investigated, which showed that ultraviolet disinfection had no significant effect on the vancomycin resistance of E. faecalis (p > 0.05).

中文翻译：

紫外线消毒对耐万古霉素的粪肠球菌的影响。

耐万古霉素的粪肠球菌（E. faecalis）的出现正威胁着人类的健康。这项工作研究了紫外线消毒对耐万古霉素的粪肠球菌的作用，包括粪肠球菌的效力，光活化和暗修复，以及失活机理。紫外线消毒可以迅速使目标抗药性细菌（ARB）粪肠球菌失活，从而破坏细胞膜并导致总三磷酸腺苷（ATP）含量和超氧化物歧化酶（SOD）活性明显降低（p <0.05）。粪肠球菌在紫外线消毒后会重新活化，尤其是在光照条件下。此外，删除了选定的抗生素抗性基因（ARG），vanB，

更新日期：2020-02-26

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