期刊
JOURNAL OF MICROBIOLOGY AND BIOTECHNOLOGY
卷 33, 期 5, 页码 559-573出版社
KOREAN SOC MICROBIOLOGY & BIOTECHNOLOGY
DOI: 10.4014/jmb.2212.12025
关键词
Shiga toxins; EHEC Stxs; Hemolytic uremic syndrome; sensor; device
Shiga toxin (Stxs)-producing enterohaemorrhagic Escherichia coli (EHEC) and Shigella dysenteriae serotype 1 are major causative agents of severe bloody diarrhea and hemolytic uremic syndrome (HUS) associated with extraintestinal complications. Detecting low levels of Stxs in environmental or food samples is crucial. Conventional detection methods such as PCR or immunoassays are laborious and time-consuming. Recent studies have described novel, sensitive, and portable methods for detecting Stxs from EHEC, including lateral flow assays, optical detection, and electrical detection.
Shiga toxin (Stxs)-producing enterohaemorrhagic Escherichia coli (EHEC) and Shigella dysenteriae serotype 1 are major causative agents of severe bloody diarrhea (known as hemorrhagic colitis) and hemolytic uremic syndrome (HUS) associated with extraintestinal complications such as acute renal failure and neurologic impairment in infected patients under 9 years of age. Extreme nephrotoxicity of Stxs in HUS patients is associated with severe outcomes, highlighting the need to develop technologies to detect low levels of the toxin in environmental or food samples. Currently, the conventional polymerase chain reaction (PCR) or immunoassay is the most broadly used assay to detect the toxin. However, these assays are laborious, time-consuming, and costly. More recently, numerous studies have described novel, highly sensitive, and portable methods for detecting Stxs from EHEC. To contextualize newly emerging Stxs detection methods, we briefly explain the basic principles of these methods, including lateral flow assays, optical detection, and electrical detection. We subsequently describe existing and newly emerging rapid detection technologies to identify and measure Stxs.
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