Fimbriae
Mostrando 1-12 de 775 artigos, teses e dissertações.
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1. [Cranberrys (Vaccinium macrocarpon aiton) na nutrição de cães: influência na digestibilidade e palatabilidade da dieta e no curso de infecções do trato urinário
RESUMO O objetivo foi avaliar os efeitos do cranberry nos parâmetros sanguíneos e urinários de cães (experimento I), na digestibilidade dos nutrientes (experimento II), na palatabilidade da dieta (experimento III) e a influência do cranberry sobre E. coli UPEC-MRHA fimbriae in vitro (experimento IV). Para os experimentos I e II, 10 cães foram alimentad
Arq. Bras. Med. Vet. Zootec.. Publicado em: 2020-09
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2. Detection of virulence genes in Salmonella Heidelberg isolated from chicken carcasses
ABSTRACT During the last years, Brazilian government control programs have detected an increase of Salmonella Heidelberg in poultry slaughterhouses a condition that poses a threat to human health However, the reasons remain unclear. Differences in genetic virulence profiles may be a possible justification. In addition, effective control of Salmonella is rela
Rev. Inst. Med. trop. S. Paulo. Publicado em: 22/07/2019
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3. Frequency of Porphyromonas gingivalis fimA in smokers and nonsmokers after periodontal therapy
Abstract Porphyromonas gingivalis is one of the most important Gram-negative anaerobe bacteria involved in the pathogenesis of periodontitis. P. gingivalis has an arsenal of specialized virulence factors that contribute to its pathogenicity. Among them, fimbriae play a role in the initial attachment and organization of biofilms. Different genotypes of fimA h
J. Appl. Oral Sci.. Publicado em: 11/04/2019
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4. Effect of sub-minimum inhibitory concentrations of ciprofloxacin, amikacin and colistin on biofilm formation and virulence factors of Escherichia coli planktonic and biofilm forms isolated from human urine
The aim of this study was to determine the effect of subinhibitory concentrations (sub-MICs) of ciprofloxacin, amikacin and colistin on biofilm formation, motility, curli fimbriae formation by planktonic and biofilm cells of E. coli strains isolated from the urine of patients with various urinary system infections. Quantification of biofilm formation was car
Braz. J. Microbiol.. Publicado em: 2013
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5. Fímbrias Pil em Escherichia coli enteropatogênica atípica: Caracterização e investigação do papel de PilS e PilV na adesão bacteriana. / Type IV pilus in atypical enteropathogenic Escherichia coli: characterization and investigation of PilS and PilV in bacterial adhesion role.
Fímbrias do tipo IV estão associadas a diversos fenótipos em bactérias gram-negativas, e o presente estudo consistiu na caracterização da fímbria Pil e investigação de seu papel na adesão bacteriana de isolados de EPEC atípica. Por PCR e RT-PCR foram investigadas a presença e a funcionalidade do operon Pil e os resultados demonstraram que este es
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/06/2012
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6. DetecÃÃo de porphyromonas gingivalis e dos genÃtipos fima ii e iv em portadores de periodontite agressiva / Detection of Porphyromonas gingivalis and fimA II and fimA IV genotypes in patients with aggressive periodontitis
Porphyromonas gingivalis à um patÃgeno extremamente associado com a etiologia da periodontite crÃnica e agressiva. O objetivo deste estudo foi avaliar atravÃs de reaÃÃo em cadeia da polimerase em tempo real (Real Time-PCR) a presenÃa de Porphyromonas gingivalis (Pg) e dos genÃtipos fimA II e IV em indivÃduos com periodontite agressiva generalizada (
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/08/2011
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7. Estudo de genes do Sistema de Secreção tipo VI em uma linhagem de Escherichia coli patogênica para aves (APEC) / Study of Type VI Secretion System genes in an avian Escherichia coli pathogenic strain (APEC)
Avian pathogenic Escherichia coli (APEC) strains frequently cause extraintestinal infections and are responsible for significant economic losses in the poultry industry worldwide. APEC isolates are closely related to human extraintestinal pathogenic E. coli (ExPEC) strains and may also act as pathogens for humans. Known APEC virulence factors include adhesin
Publicado em: 2011
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8. Formação de biofilme em amostras de Escherichia coli associada a sepse (SEPEC) : caracterização fenotipica, genotipica e filogenia / Biofilm formation by sepsis associated Escherichia coli (SEPEC) strains : genotypic, phenotypic characterization and phylogeny
Extraintestinal Pathogenic Escherichia coli (ExPEC) form a heterogeneous group as the bacterial virulence factors involved in its pathogenicity and local infection in the host. Our work aimed study the phenotypic and genotypic characteristics of biofilm formation and phylogeny of sepsis-associated Escherichia coli Human (SEPEC), as well as their patterns of
Publicado em: 2010
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9. Regulação da expressão da fímbria CupD por sistemas de dois componentes de Pseudomonas aeruginosa Pa14 e ensaios de virulência no hospedeiro-modelo Dictyostelium discoideum / Genes involved with Pseudomonas aeruginosa PA14 pathogenicity: characterization of the promoter regions and virulence assays in the Dictyostelium discoideum host model
Pseudomonas aeruginosa is a ubiquitous gammaproteobacteria able to infect immunocompromised individuals and to cause nosocomial infections. Between two direct repeats in the PAPI-1 pathogenicity island present in strain PA14, there are two gene clusters transcribed in opposite directions. The first, composed of pvrS, pvrR, rcsC and rcsB, encodes two-componen
Publicado em: 2008
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10. Avaliação da utilização de anticorpos IgY de galinhas poedeiras no controle de diarréia pós desmame em leitões
Enterotoxigenic Escherichia coli (ETEC) is one of the most important causes of post-weaning diarrhea in piglets and causes economic losses in the pig industry. Alternatives methods in order to control this disease have been widely studied. Imunoprotection with antibodies from the egg yolk of hens (IgY) is an attractive alternative, taking into account the lo
Publicado em: 2008
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11. Algumas propriedades de virulência de Escherichia coli isoladas de pacientes com doença inflamatória intestinal. / Some virulence properties of Escherichia coli isolated from patients with inflammatory bowel disease.
Escherichia coli are increased in inflammatory bowel disease (IBD) patients, but the reason for this elevation is unknown. Amongst their properties is the interaction with cultured epithelial cells. Rectal biopsies from 27 ulcerative colitis (UC), 8 Crohns disease (CD) and 19 control patients were cultured for E. coli, given 131 isolates. Enteroagregative E.
Publicado em: 2008
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12. Effect of PvrR and RcsB response regulators in motility, biofilm formation and their connection with Pseudomonas aeruginosa PA14 CupD fimbria / Efeito dos reguladores de resposta PvrR e RcsB na motilidade, formação de biofilme e sua relação com a fímbria CupD de Pseudomonas aeruginosa PA14
Pseudomonas aeruginosa is a γ-proteobacteria that can behave as an opportunistic pathogen. The strain PA14 carries two pathogenicity islands, the largest of them, PAPI-1, contains two gene clusters between two direct repeat sequences that are transcribed in opposite directions and are involved in virulence. The first group consists of four genes arrange
Publicado em: 2008