Genetic analysis of uidA expression in enterohaemorrhagic Escherichia coli serotype 0157:H7
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چکیده
منابع مشابه
Prevalence of enterohaemorrhagic Escherichia coli from serotype O157 and other attaching and effacing Escherichia coli on bovine carcasses in Algeria.
AIMS Bovine meat is the principal source of human contamination of attaching and effacing Escherichia coli, including enterohaemorrhagic E. coli O157. The aim was to study the prevalence of these strains on bovine carcasses in Algeria. METHODS AND RESULTS Two-hundred and thirty carcasses were swabbed and analysed by classical microbiological methods for total E. coli counts and for the presen...
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To cite: Matsunaga M, Fukahori M, Ushijima T, et al. BMJ Case Rep Published online: [please include Day Month Year] doi:10.1136/bcr-2015213548 DESCRIPTION A 74-year-old woman who had undergone surgery for rectal cancer and also had lung metastases developed abdominal pain, diarrhoea and bloody stools 5 days after receiving her 22nd dose of S-1, oxaliplatin and bevacizumab therapy. She was admit...
متن کاملHeterogeneity of uidA gene in environmental Escherichia coli populations.
Previous studies have shown that Escherichia coli can be isolated from non-polluted rivers and from bromeliad axilae in pristine areas of tropical rain forests. Finding E. coli in pristine environments is unusual because this bacterium is thought to only survive in the gut of warm-blooded animals and thus its presence should indicate recent fecal contamination. The aims of this study were 1) to...
متن کاملNegative dominant mutations of the uidR gene in Escherichia coli: genetic proof for a cooperative regulation of uidA expression.
The uidA gene is the first gene involved in the hexuronide-hexuronate pathway in Escherichia coli K-12 and is under the dual control of the uidR and uxuR encoded repressors. Point mutations affecting the uidR regulatory gene were sought to investigate the regulation of uidA. When the uidR mutant allele was on a multicopy plasmid and the wild-type allele was on the chromosome, some of the mutant...
متن کاملSurveillance of enterohaemorrhagic Escherichia coli O157:H7 in southern Thailand.
In recent years, several studies have reported infections associated with Escherichia coli O157:H7, especially in developed countries (1). Except Japan, isolation of E. coli O157:H7 has also been reported in Asian countries (2). Limited work has been carried out on E. coli O157:H7 in Thailand (3,4). Suthienkul et al. reported no E. coli O157 in retail meat and cattle (3), but it was recently is...
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ژورنال
عنوان ژورنال: Microbiology
سال: 1994
ISSN: 1350-0872,1465-2080
DOI: 10.1099/13500872-140-8-2101