Enteroaggregative Escherichia Coli
Mostrando 1-12 de 116 artigos, teses e dissertações.
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1. DIARRHEAGENIC Escherichia coli IN RAW MILK, WATER, AND CATTLE FECES IN NON-TECHNIFIED DAIRY FARMS
Resumo Este estudo teve como objetivo realizar a detecção de Escherichia coli diarreiogênica (EPEC, STEC, ETEC e EAEC) em leite, água e fezes bovinas em pequenas propriedades leiteiras localizadas na Região Nordeste do Estado de São Paulo, Brasil. E. coli foi detectada em amostras obtidas de fezes (80%), leite cru (66,67%) e água (55,56%). STEC, EPEC,
Ciênc. anim. bras.. Publicado em: 24/10/2019
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2. Detection of Diarrheagenic Escherichia coli in Bovine Meat in the Northern Region of Paraná State, Brazil
Abstract Ground bovine meat is commonly consumed by the population of Brazil. However, it constitutes an excellent medium for the multiplication of microorganisms due to available nutrients and handling practices prior to consumption. Here, we examined 100 samples of ground beef for the presence of diarrheagenic Escherichia coli (DEC) pathotypes by PCR, and
Braz. arch. biol. technol.. Publicado em: 12/08/2019
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3. Enterobacteria identification and detection of diarrheagenic Escherichia coli in a Port Complex
The Port Complex of Maranhão (PCM) is the second largest port complex in Brazil, receiving ships with large volumes of ballast water. To evaluate the microbiological quality of its waters, physicochemical parameters (pH and salinity), the number of coliforms (thermotolerants and totals), and the presence of enterobacterias and diarrheagenic Escherichia coli
Braz. J. Microbiol.. Publicado em: 2014-09
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4. Aggregative adherence pattern and biofilm formation in typical and atypical enteroaggregative Escherichia coli: role of the Shf protein. / Padrão de adesão agregativa e formação de biofilme em Escherichia coli enteroagregativa típica e atípica: papel da proteína Shf.
Enteroaggregative Escherichia coli (EAEC) is characterized by the expression of the aggregative adherence (AA) pattern to HEp-2 cells. The classification of EAEC in typical and atypical is based on the presence or absence of aggR, respectively. The shf gene encodes a protein with similarity to IcaB, associated with biofilm formation. The objectives of this s
Publicado em: 2009
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5. Iron-limited condition modulates biofilm and adhesive porpoerties in enteroaggregative Escherichia coli / Influência da limitação de ferro nas propriedades adesivas e na formação de biofilme de Escherichia coli enteroagregativa (EAEC)
Escherichia coli enteroaggregative (EAEC) can cause persistent or acute diarrhea. It is characterized by the aggregative adherence pattern on HEp-2 cells, with the presence of bacteria aggregates like stacked bricks. Many strains have the capacity to produce siderophores, low-molecular-mass compounds that capture iron under conditions of low concentration of
Publicado em: 2009
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6. Genes codificadores de fatores de virulÃncia, inflamaÃÃo e avaliaÃÃo nutricional da infecÃÃo intestinal associada com Escherichia coli enteroagregativa em crianÃas de Fortaleza, CearÃ, Brasil / Virulence factor coding genes, inflammation and nutritional evaluation of intestinal infection associated with enteroaggregative Escherichia coli in children from Fortaleza, Ceara, Brazil
Enteroaggregative Escherichia coli (EAEC) is a pathotype of diarrheagenic E. coli, which has increasingly been identified as an etiological agent of diarrheal disease. This purpose of this study is to determine the prevalence of EAEC and examine the importance of some virulence-related genes in the severity of the diarrheal disease caused by this microorgani
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 12/11/2008
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7. Characterization of the dispersin protein in Escherichia coli strains that do not belong to the enteroagreggative E.coli pathotype. / Caracterização da proteína dispersina em amostras de Escherichia coli não pertencentes ao patótipo de E. coli enteroagregativa.
The protein dispersin, encoded by aap, is one of the virulence factors of enteroaggregative Escherichia coli (EAEC). Detection of aap has been employed along with aggR and aatA in the molecular diagnosis of EAEC. In order to verify their specificity, these genes were searched in a collection of 243 diarrheagenic E. coli (DEC) strains. All of them were negati
Publicado em: 2008
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8. Detection of diarrheagenic Escherichia coli from children with and without diarrhea in Salvador, Bahia, Brazil
We identified different diarrheagenic (DEC) Escherichia coli pathotypes isolated from 1,207 children with and without acute endemic diarrhea in Salvador, Bahia, Brazil collected as part of a case-control study. Since the identification of DEC cannot be based on only biochemical and culture criteria, we used a multiplex polymerase chain reaction developed by
Memórias do Instituto Oswaldo Cruz. Publicado em: 30/10/2007
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9. Genetic relationship of diarrheagenic Escherichia coli pathotypes among the enteropathogenic Escherichia coli O serogroup
The genetic relationship among the Escherichia coli pathotypes was investigated. We used random amplified polymorphic DNA (RAPD) data for constructing a dendrogram of 73 strains of diarrheagenic E. coli. A phylogenetic tree encompassing 15 serotypes from different pathotypes was constructed using multilocus sequence typing data. Phylogram clusters were used
Memórias do Instituto Oswaldo Cruz. Publicado em: 23/02/2007
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10. Association of IL-8-inducing strains of diffusely adherent Escherichia coli with sporadic diarrheal patients with less than 5 years of age
The role of diffusely adherent Escherichia coli (DAEC) in diarrheal disease has been controversial. However, DAEC strains were recently implicated in diarrheal disease in developing countries. To clarify whether DAEC are prevalent among sporadic cases of diarrheal illness in Osaka City, Japan, E. coli strains isolated between July 1997 and March 2000 during
Brazilian Journal of Infectious Diseases. Publicado em: 2007-02
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11. Etiology of diarrheal infections in children of Porto Velho (Rondonia, Western Amazon region, Brazil)
In the present study, 470 children less than 72 months of age and presenting acute diarrhea were examined to identify associated enteropathogenic agents. Viruses were the pathogens most frequently found in stools of infants with diarrhea, including 111 cases of rotavirus (23.6% of the total diarrhea cases) and 30 cases of adenovirus (6.3%). The second group
Brazilian Journal of Medical and Biological Research. Publicado em: 2006-04
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12. ESTUDOS GENÉTICOS SOBRE A VIRULÊNCIA DE Escherichia coli ENTEROAGREGATIVA ATÍPICA / Genetic studies on the virulence of atypical enteroaggregative Escherichia coli.
Escherichia coli enteroaggregative (EAEC) is emerging as a significant diarrheal pathogen. EAEC is defined by its characteristic stacked brick aggregative adherence (AA) pattern of adherence to HEp-2 cells. Most EAEC strains harbor a 60 to 65-MDa virulence plasmid (pAA). A 1-Kb fragment of pAA, referred to as the AA probe or CVD432, has been widely used for
Publicado em: 2006