نتایج جستجو برای: enteropathogenic escherichia coli epec

تعداد نتایج: 153886  

2013
Oliver David Kenneth Maddocks Karen Mary Scanlon Michael S. Donnenberg

Enteropathogenic Escherichia coli (EPEC) is an attaching and effacing (A/E) human pathogen that causes diarrhea during acute infection, and it can also sustain asymptomatic colonization. A/E E. coli depletes host cell DNA mismatch repair (MMR) proteins in colonic cell lines and has been detected in colorectal cancer (CRC) patients. However, until now, a direct link between infection and host mu...

2003
Gary K. Schoolnik

Enteropathogenic Escherichia coli grow as discrete colonies on the mucous membranes of the small intestine. A similar pattern can be demonstrated in vitro; termed localized adherence (LA), it is characterized by the presence of circumscribed clusters of bacteria attached to the surfaces of cultured epithelial cells. The LA phenotype was studied using B171, an O111:NM enteropathogenic E. coli (E...

Journal: :iranian journal of microbiology 0
seyedeh tina miri amir dashti saeid mostaan farzaneh kazemi saeid bouzari molecular biology department, pasteur institute of iran

background and objectives: diarrhea is one of the most prevalent diseases in the world, specially in developing countries. one of the most important causative agents of bacterial diarrhea is diarrheagenic escherichia coli (dec) which causes gastroenteritis and this group involving enterotoxigenic e. coli (etec), enteropathogenic e. coli (epec), enteroaggregative e. coli (eaec), enterohemoragic ...

Journal: :Infection and immunity 2002
Rogéria Keller Juana G Ordoñez Rosana R de Oliveira Luiz R Trabulsi Thomas J Baldwin Stuart Knutton

O55 is one of the most frequent enteropathogenic Escherichia coli (EPEC) O serogroups implicated in infantile diarrhea in developing countries. Multilocus enzyme electrophoresis analysis showed that this serogroup includes two major electrophoretic types (ET), designated ET1 and ET5. ET1 corresponds to typical EPEC, whilst ET5 comprises strains with different combinations of virulence genes, in...

Journal: :The Journal of infectious diseases 2003
Michelle V Dulguer Sandra H Fabbricotti Silvia Y Bando Carlos A Moreira-Filho Ulysses Fagundes-Neto Isabel C A Scaletsky

The virulence profiles of most atypical enteropathogenic Escherichia coli (EPEC) strains are unknown. A total of 118 typical and atypical strains of EPEC serotypes and non-EPEC serogroups isolated from children with or without acute diarrhea who were from different cities in Brazil were examined for virulence-associated markers and adherence to HEp-2 cells, and also had random amplified polymor...

2013
Tracy H. Hazen Jason W. Sahl Claire M. Fraser Michael S. Donnenberg Flemming Scheutz David A. Rasko

We report the draft genome sequences of three enteropathogenic Escherichia coli (EPEC) isolates that display the O157 serogroup but do not have the Shiga toxin genes (stx), which are characteristic of O157 enterohemorrhagic E. coli (EHEC). E. coli strain RN587/1 has the O157:H8 serotype and possesses the EAF plasmid characteristic of typical EPEC (J. B. Kaper, J. P. Nataro, and H. L. Mobley, Na...

Journal: :International Journal of Molecular Sciences 2023

Hybrid strains Escherichia coli acquires genetic characteristics from multiple pathotypes and is speculated to be more virulent; however, understanding their pathogenicity elusive. Here, we performed genome-based characterization of the hybrid enteropathogenic (EPEC) enterotoxigenic E. (ETEC), that cause diarrhea mortality in children. The virulence genes isolated different sources South Korea ...

Journal: :jundishapur journal of microbiology 0
bita bakhshi department of bacteriology, faculty of medical sciences, tarbiat modares university, tehran, ir iran; department of bacteriology, faculty of medical sciences, tarbiat modares university, jalal-ale-ahmad ave., tehran, ir iran. tel: +98-2182884558, fax: +98-2182884555 nazanin eftekhari department of biology, faculty of basic science, science and research branch, islamic azad university, tehran, ir iran mohammad reza pourshafie department of bacteriology, pasteur institute of iran, tehran, ir iran

background: integrons are the major reasons of multidrug resistance (mdr) among enteropathogenic bacteria. occurrence of horizontal gene transfer between integron-carrying microorganisms and other enteric bacteria may increase the rate of emergence of integron-associated antibiotic resistance. objectives: the objective of this study was to investigate class 1 integrons among members of enteropa...

Journal: :Infection and immunity 1999
H Liu L Magoun J M Leong

Intimin is a bacterial outer membrane protein required for intimate attachment of enterohemorrhagic and enteropathogenic Escherichia coli (EHEC and EPEC) to mammalian cells. beta1-chain integrins have been proposed as candidate receptors for intimin. We found that binding of mammalian cells to immobilized intimin was not detectable unless mammalian cells were preinfected with EPEC or EHEC. beta...

Journal: :Journal of infection in developing countries 2015
Casmir Ifeanyichukwu Cajetan Ifeanyi Nkiruka Florence Ikeneche Bassey Enya Bassey Nazek Al-Gallas Ridha Ben Aissa Abdellatif Boudabous

INTRODUCTION Escherichia coli are frequently isolated from diarrheic children in the Federal Capital Territory Abuja, Nigeria, but their virulent properties are not routinely evaluated. Therefore, the etiology of childhood diarrheal disease attributable to diarrheagenic Escherichia coli (DEC) in Abuja, Nigeria remains unknown. METHODOLOGY Stool specimens from 400 acute diarrheic children betw...

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