نتایج جستجو برای: epec serotypes

تعداد نتایج: 10313  

Journal: :Journal of palliative medicine 2004
Katya Robinson Sharyn Sutton Charles F von Gunten Frank D Ferris Nicholas Molodyko Jeanne Martinez Linda L Emanuel

PURPOSE Palliative medicine is assuming an increasingly important role in patient care. Yet, most physicians did not learn this during their formal training. The Education for Physicians in End-of-life Care (EPEC) Project aims to increase physician knowledge in palliative care by disseminating the EPEC Curriculum through a train-the-trainer approach. An assessment of its use to help the project...

Journal: :Infection and immunity 2003
Michelle M Muza-Moons Athanasia Koutsouris Gail Hecht

Enteropathogenic Escherichia coli (EPEC) disrupts the structure and barrier function of host intestinal epithelial tight junctions (TJs). The impact of EPEC on TJ "fence function," i.e., maintenance of cell polarity, has not been investigated. In polarized cells, proteins such as beta(1)-integrin and Na(+)/K(+) ATPase are restricted to basolateral (BL) membranes. The outer membrane EPEC protein...

2015
Jun Ye Qiong Pan Yangyang Shang Xiaolong Wei Zhihong Peng Wensheng Chen Lei Chen Rongquan Wang

BACKGROUND How host cell glycosylation affects EPEC or EHEC O157:H7 invasion is unclear. This study investigated whether and how O-glycans were involved in EPEC or EHEC O157:H7 invasion into HT-29 cells. RESULTS Lectin histochemical staining confirmed stronger staining with PNA, which labeled Galβ1, 3 GalNAc (core 1 structure) in HT-29-Gal-OBN and C2GnT2-sh2/HT-29 cells, compared with control...

2012
Cedric N. Berger Valerie F. Crepin Kobi Baruch Aurelie Mousnier Ilan Rosenshine Gad Frankel

UNLABELLED Translocation of effector proteins via a type III secretion system (T3SS) is a widespread infection strategy among Gram-negative bacterial pathogens. Each pathogen translocates a particular set of effectors that subvert cell signaling in a way that suits its particular infection cycle. However, as effector unbalance might lead to cytotoxicity, the pathogens must employ mechanisms tha...

2014
Fábia A. Salvador Rodrigo T. Hernandes Mônica A.M. Vieira Anna C. Rockstroh Tânia A.T. Gomes

Enteropathogenic Escherichia coli (EPEC) are important human gastroenteritis agents. The prevalence of six non-LEE genes encoding type 3 translocated effectors was investigated. The nleC, cif and nleB genes were more prevalent in typical than in atypical EPEC, although a higher diversity of genes combinations was observed in atypical EPEC.

2017
Lance W Noll Jay N Worley Xun Yang Pragathi B Shridhar Jianfa Bai Jianghong Meng Doina Caragea T G Nagaraja

Enteropathogenic Escherichia coli (EPEC) pathotype represents a minor proportion of E. coli O103 strains shed in the feces of feedlot cattle. The draft genome sequences of 13 strains of EPEC O103 are reported here. The availability of the genome sequences will help in the assessment of genetic diversity and virulence potential of bovine EPEC O103.

Journal: :Infection and immunity 2011
Carla Calderon Toledo Ida Arvidsson Diana Karpman

Enteropathogenic Escherichia coli (EPEC) and enterohemorrhagic E. coli (EHEC) are related attaching and effacing (A/E) pathogens. The genes responsible for the A/E pathology are carried on a chromosomal pathogenicity island termed the locus of enterocyte effacement (LEE). Both pathogens share a high degree of homology in the LEE and additional O islands. EHEC prevalence is much lower in areas w...

Journal: :The Journal of infectious diseases 1985
M M Levine J P Nataro H Karch M M Baldini J B Kaper R E Black M L Clements A D O'Brien

Isolates of the most common O serogroups of enteropathogenic Escherichia coli (EPEC) associated with infant diarrhea (designated class I) adhere to Hep-2 cells; the genes for this adhesin, termed EPEC adherence factor (EAF), are located on plasmids 50-70 MDa in size. Volunteers ingested 10(10) organisms of an O127:H6 Hep-2-adhesive class I strain (E2348/69) or its plasmid-minus, nonadhesive der...

Journal: :Journal of clinical microbiology 2004
Josias Rodrigues Cristiane M Thomazini Alexandra Morelli Georgea C M de Batista

Previously common in Brazil, enteropathogenic Escherichia coli (EPEC) strains of serogroups O55, O111, and O119 are now rare, while enteroadherent strains other than EPEC, belonging to serogroups such as O125, were prevalent among 126 diarrheic infants less than 1 year old who were surveyed. None of these strains had the EPEC bundle-forming pilus (bfpA) gene.

2009
Richard Bulgin Ana Arbeloa David Goulding Gordon Dougan Valerie F. Crepin Benoit Raymond Gad Frankel

Enteropathogenic Escherichia coli (EPEC) strains are defined as extracellular pathogens which nucleate actin rich pedestal-like membrane extensions on intestinal enterocytes to which they intimately adhere. EPEC infection is mediated by type III secretion system effectors, which modulate host cell signaling. Recently we have shown that the WxxxE effector EspT activates Rac1 and Cdc42 leading to...

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