期刊
BIOSENSORS-BASEL
卷 13, 期 2, 页码 -出版社
MDPI
DOI: 10.3390/bios13020294
关键词
vancomycin-resistant Enterococci (VRE); DNA biosensor; electrochemical biosensor; Gram-positive bacteria
Vancomycin-resistant Enterococci (VRE) genes are bacteria strains that are resistant to the antibiotic vancomycin. They exhibit phenotypic and genotypic variations and pose significant issues for hospitalized patients. This review summarizes methods for detecting VRE strains and explores the potential use of electrochemical DNA biosensors for detecting VRE genes. However, no information was found on the development of electrochemical biosensors for VRE genes, only for vancomycin-susceptible bacteria.
Vancomycin-resistant Enterococci (VRE) genes are bacteria strains generated from Gram-positive bacteria and resistant to one of the glycopeptides antibiotics, commonly, vancomycin. VRE genes have been identified worldwide and exhibit considerable phenotypic and genotypic variations. There are six identified phenotypes of vancomycin-resistant genes: VanA, VanB, VanC, VanD, VanE, and VanG. The VanA and VanB strains are often found in the clinical laboratory because they are very resistant to vancomycin. VanA bacteria can pose significant issues for hospitalized patients due to their ability to spread to other Gram-positive infections, which changes their genetic material to increase their resistance to the antibiotics used during treatment. This review summarizes the established methods for detecting VRE strains utilizing traditional, immunoassay, and molecular approaches and then focuses on potential electrochemical DNA biosensors to be developed. However, from the literature search, no information was reported on developing electrochemical biosensors for detecting VRE genes; only the electrochemical detection of vancomycin-susceptible bacteria was reported. Thus, strategies to create robust, selective, and miniaturized electrochemical DNA biosensor platforms to detect VRE genes are also discussed.
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