Avian Pathogenic Escherichia Coli
Mostrando 13-24 de 43 artigos, teses e dissertações.
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13. Subpatótipos de Escherichia coli patogênica para aves (APEC) podem estar associados às síndromes infecciosas infecciosas causadas no hospedeiro / Subpathotypes of avian pathogenic Escherichia coli (APEC) exist as definid by their syndromes of isolation and virulence traits
Avian Pathogenic Escherichia coli (APEC) cause different types of systemic extraintestinal infections in poultry, which are collectively termed colibacillosis, imposing significant economic casses for the avian industry Among these diseases are septicaemia, omphalitis, cellulites and swollen head syndrome. However, to the date, there is no description of gen
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/10/2010
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14. Vat (vacuolating autotransporter toxin) produced by APEC (avian pathogenic Escherichia coli) : intracellular effects and philogroups distribution / Vat (vacuolating autotransporter toxin) produzida por APEC (avian pathogenic Escherichia coli) : efeitos intracelulares e distribuição filogenetica
Escherichia coli isoladas de lesões de celulite aviária em frangos de corte produzem uma citotoxina que causa intensa vacuolização citoplasmática em células de origem aviária, mas não em células de mamíferos. Esta citotoxina foi denominada Vat (vacuolating autotransporter toxin) e apresenta massa molecular de 56 kDa e ponto isoelétrico de 6,37. Es
Publicado em: 2010
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15. Pesquisa e Caracterização de Escherichia coli patogênica (E.coli produtora de toxina Shiga - STEC; E.coli aviária patogênica - APEC) de fragatas (Fregata magnificens) da Costa do Estado de São Paulo / Research and characterization of pathogenic Escherichia coli (E. coli Shiga toxin-producing - STEC, avian pathogenic E. coli - APEC) frigates (Fregata magnificens) Coast of São Paulo
O presente trabalho objetivou pesquisar e caracterizar Escherichia coli patogênica (E. coli produtora de toxina Shiga STEC; E. coli aviária patogênica - APEC) em fragatas (Fregata magnificens) da costa do Estado de São Paulo e, desta forma, contribuir para a compreensão de aspectos epidemiológicos deste importante grupo de enfermidades zoonóticas bact
Publicado em: 2010
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16. Clonagem e análise genética do gene iss, e avaliação da atividade do anticorpo IgY anti-proteína recombinante Iss de Escherichia coli patogênica para aves (APEC)
Escherichia coli strains designated as avian pathogenic E. coli (APEC) are responsible to avian colibacillosis, which is the principal cause of high economic losses in the modern poultry industry, due the increase of mortality, medication cost and condemnation of carcasses. The APEC pathogenicity is related to presence of several virulence factors, being the
Publicado em: 2009
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17. Caracterização clonal e biologica de linhagens de Escherichia coli de origem aviaria / Clonal and biological characterization of avian Escherichia coli
Forty and nine Escherichía coli strains isolated frem sick chickens (24 frem septicaemia - S, 14 frem swollen head syndrem - SHS, and 11 frem omphalitis - O), and 30 strains isolated frem the cloacae region (C) of healthy chickens were analyzed in relation of the presence of virulence-related genes, E. colí phylogenetical groups, fliC gene similarity. Thes
Publicado em: 2006
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18. Estudo dos fatores de virulencia de amostras de Escherichia coli patogenicas de origem aviaria (APEC) / Study of the virulence factors from avian pathogenic Escherichia coli strains (APEC)
Two pathogenic Escherichia coZi strains isolated from avian (APEC) showing c1inical signs of septicemia (817 and 821), and one isolated from avian showing c1inical signs of 8wollen Head 8yndrome (8H8 1 O), were selected from a total of 49 strains belonging to the Laboratory of Bacterial Molecular Biology, after a biological characterization regarding the pre
Publicado em: 2006
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19. Análise da expressão e caracterização funcional da hemaglutinina temperatura sensível de Escherichia coli
Escherichia coli is an important agent of extra-intestinal infections both in humans and animals alike. In poultry, it is responsible for significant economic loss, being known as the pathogenic avian E. coli (APEC); and it causes colibacillosis, which starts as an infection of the respiratory tract evolving to airsacculitis, pericarditis, perihepatitis and
Publicado em: 2006
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20. A Novel Pathogenicity Island Integrated Adjacent to the thrW tRNA Gene of Avian Pathogenic Escherichia coli Encodes a Vacuolating Autotransporter Toxin
We report the complete nucleotide sequence and genetic organization of the Vat-encoding pathogenicity island (PAI) of avian pathogenic Escherichia coli strain Ec222. The 22,139-bp PAI is situated adjacent to the 3′ terminus of the thrW tRNA gene, has a G+C content of 41.2%, and includes a bacteriophage SfII integrase gene, mobile genetic elements, two open
American Society for Microbiology.
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21. Isolation and characterization of a gene involved in hemagglutination by an avian pathogenic Escherichia coli strain.
In this article, we report the isolation and characterization of a gene that may be important in the adherence of avian pathogenic Escherichia coli to the avian respiratory tract. The E. coli strain HB101, which is unable to agglutinate chicken erythrocytes, was transduced with cosmid libraries from the avian pathogenic E. coli strain chi 7122. Enrichment of
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22. Identification of pathogen-specific and conserved genes expressed in vivo by an avian pathogenic Escherichia coli strain
Escherichia coli is a diverse bacterial species that comprises commensal nonpathogenic strains such as E. coli K-12 and pathogenic strains that cause a variety of diseases in different host species. Avian pathogenic E. coli strain χ7122 (O78:K80:H9) was used in a chicken infection model to identify bacterial genes that are expressed in infected tissues. By
The National Academy of Sciences.
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23. Relationship between the Tsh Autotransporter and Pathogenicity of Avian Escherichia coli and Localization and Analysis of the tsh Genetic Region
The temperature-sensitive hemagglutinin Tsh is a member of the autotransporter group of proteins and was first identified in avian-pathogenic Escherichia coli (APEC) strain χ7122. The prevalence of tsh was investigated in 300 E. coli isolates of avian origin and characterized for virulence in a 1-day-old chick lethality test. Results indicate that among the
American Society for Microbiology.
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24. Unique chromosomal regions associated with virulence of an avian pathogenic Escherichia coli strain.
The avian pathogenic Escherichia coli strain (chi)7122 (serotype O78:K80:H9) causes airsacculitis and colisepticemia in chickens. To identify genes associated with avian disease, a genomic subtraction technique was performed between strain (chi)7122 and the E. coli K-12 strain (chi)289. The DNA isolated using this method was found only in strain (chi)7122 an