Streptococcus Dysgalactiae Subsp
Mostrando 1-12 de 14 artigos, teses e dissertações.
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1. Produção da proteína recombinante estreptoquinase (Streptococcus dysgalactiae subsp. equisimilis) em biorreator utilizando diferentes estratégias de batelada alimentada
A estreptoquinase (SK) é uma proteína extracelular produzida por uma variedade de linhagens de Streptococcus beta-hemolíticos, é uma proteína ativadora do plasmigênio composta de 414 aminoácidos com uma massa molecular de aproximadamente 47 kDa. A SK forma um complexo equimolar com o plasminogênio. Esse complexo resultante pode converter diretamente
Publicado em: 2011
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2. Mode of action and in vitro susceptibility of mastitis pathogens to macedocin ST91KM and preparation of a teat seal containing the bacteriocin
Mastitis is considered to be the most economically costly disease affecting the dairy industry. Regular dosage of animals with antibiotics, including use of prophylactic concentrations, may select for resistant strains. The purpose of this study was to determine the mode of action of a new bacteriocin (macedocin ST91KM), to evaluate the antimicrobial resista
Brazilian Journal of Microbiology. Publicado em: 2010-03
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3. Surto causado por Streptococcus dysgalactiae subsp equisimilis, em um hospital, no Sul do Brasil
O estreptococo beta-hemolítico do grupo C de Lancefield tem sido considerado patógeno humano emergente, mostrando importante papel como agente oportunista, implicado algumas vezes em infecções hospitalares e surtos. Este estudo está relatando o primeiro surto de infecção hospitalar causado pelos Streptococcus dysgalactiae subsp. equisimilis no Brasil.
Brazilian Journal of Microbiology. Publicado em: 2007-09
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4. Analysis of a Viridans Group Strain Reveals a Case of Bacteremia Due to Lancefield Group G Alpha-Hemolytic Streptococcus dysgalactiae subsp. equisimilis in a Patient with Pyomyositis and Reactive Arthritis
Streptococcus dysgalactiae is classified by a combination of phenotypic and genotypic characteristics into Lancefield group C alpha-hemolytic Streptococcus dysgalactiae subsp. dysgalactiae and Lancefield group C, group G, and group L beta-hemolytic Streptococcus dysgalactiae subsp. equisimilis. In this study, we report the isolation of a catalase-negative, a
American Society for Microbiology.
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5. Six-Month Multicenter Study on Invasive Infections Due to Streptococcus pyogenes and Streptococcus dysgalactiae subsp. equisimilis in Argentina
During a 6-month period, 95 invasive infections due to Streptococcus pyogenes and group C or group G Streptococcus dysgalactiae subsp. equisimilis were recorded from 40 centers of 16 cities in Argentina. We describe here epidemiologic data available for 55 and 19 patients, respectively, associated with invasive infections due to S. pyogenes and S. dysgalacti
American Society for Microbiology.
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6. Characterization of Blood Culture Isolates of Streptococcus dysgalactiae subsp. equisimilis Possessing Lancefield's Group A Antigen
For three human blood culture isolates of beta-hemolytic streptococci with Lancefield's serogroup A antigen, phylogenetic analysis of the 16S rRNA genes confirmed biochemical identification as Streptococcus dysgalactiae subsp. equisimilis. Genes encoding M or M-like proteins, which are considered to be major virulence determinants in streptococci, were detec
American Society for Microbiology.
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7. Identification and Molecular Characterization of Beta-Hemolytic Streptococci Isolated from Harbor Seals (Phoca vitulina) and Grey Seals (Halichoerus grypus) of the German North and Baltic Seas
Bacteriological investigations of seals of the German North and Baltic seas resulted in the isolation of bacteria of the genus Streptococcus belonging to Lancefield's serological groups C, F, and L. According to biochemical, serological, and 16S ribosomal DNA analysis, the group C and group F streptococci were identified as Streptococcus phocae. The group L
American Society for Microbiology.
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8. Characterization of Group C and G Streptococcal Strains That Cause Streptococcal Toxic Shock Syndrome
Twelve strains (the largest number ever reported) of group C and G1 streptococci (GCS and GGS, respectively) that caused streptococcal toxic shock syndrome (STSS) were collected and characterized. Eleven strains were identified as Streptococcus dysgalactiae subsp. equisimilis, and one strain was identified as Streptococcus equi subsp. zooepidemicus. We found
American Society for Microbiology.
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9. Production and Properties of Bacteriocin-Like Inhibitory Substances from the Swine Pathogen Streptococcus suis Serotype 2
Streptococcus suis serotype 2 is a major pathogen found in the upper respiratory tract of swine. In this study, isolates of this bacterial species were tested for the production of bacteriocin-like inhibitory substances (BLIS). Of the 38 strains tested, four inhibited the growth of other S. suis isolates according to a deferred-antagonism plate assay. Intere
American Society for Microbiology.
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10. Acquisition of Host Plasmin Activity by the Swine Pathogen Streptococcus suis Serotype 2
In this study, the plasminogen-binding activity of Streptococcus suis serotype 2 was investigated. Bound human plasminogen was activated by purified streptokinase, urokinase, or Streptococcus dysgalactiae subsp. equisimilis culture supernatant. Both human and porcine plasminogen were bound by S. suis. Binding was inhibited by ɛ-aminocaproic acid, and the pl
American Society for Microbiology.
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11. Identification and Molecular Characterization of Beta-Hemolytic Streptococci Isolated from Harbor Porpoises (Phocoena phocoena) of the North and Baltic Seas
The present study was designed to identify and comparatively investigate 35 beta-hemolytic streptococci isolated from stranded harbor porpoises or from animals caught in fishing nets of the North and Baltic seas. According to biochemical and serological data and to lectin agglutination tests with the lectin of Arachis hypogaea, all 35 isolates could be class
American Society for Microbiology.
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12. Cores, Microbial Organelles Possibly Specific to Group D Streptococci
A long, thin, approximately cylindrical core spans the interior of cells of 24-hr cultures of all group D streptococci that were examined, five strains of Streptococcus faecalis, single strains of S. faecalis subsp. zymogenes and S. durans, and three strains of Streptococcus spp. In one strain of S. faecalis, serial section electron microscopy showed that mo