Bacteroides Fragilis Group
Mostrando 1-12 de 247 artigos, teses e dissertações.
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1. Identification of the alpha-enolase P46 in the extracellular membrane vesicles of Bacteroides fragilis
BACKGROUND Members of the Bacteroides fragilis group are the most important components of the normal human gut microbiome, but are also major opportunistic pathogens that are responsible for significant mortality, especially in the case of bacteraemia and other severe infections, such as intra-abdominal abscesses. Up to now, several virulence factors have b
Mem. Inst. Oswaldo Cruz. Publicado em: 2018-03
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2. High occurrence of Fusobacterium nucleatum and Clostridium difficile in the intestinal microbiota of colorectal carcinoma patients
Abstract Colorectal carcinoma is considered the fourth leading cause of cancer deaths worldwide. Several microorganisms have been associated with carcinogenesis, including Enterococcus spp., Helicobacter pylori, enterotoxigenic Bacteroides fragilis, pathogenic E. coli strains and oral Fusobacterium. Here we qualitatively and quantitatively evaluated the pres
Braz. J. Microbiol.. Publicado em: 09/10/2015
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3. Prevalence and antibiotic susceptibility of Bacteroides fragilis group isolated from stool samples in North Lebanon
Fifty one strains of the Bacteroides fragilis group were isolated from 45 fecal samples. Classical phenotypic identification showed that 16 isolates were B. thetaiotaomicron, 12 B. uniformis, 9 B. eggerthii,7 B. vulgatus,3 B. caccae,2 Parabacteroides distasonis with 1 identified B. ovatus and 1 B. fragilis. The 51 strains were tested for susceptibility again
Braz. J. Microbiol.. Publicado em: 2013-09
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4. Distribution, detection of enterotoxigenic strains and antimicrobial drug susceptibility patterns of Bacteroides fragilis group in diarrheic and non-diarrheic feces from Brazilian infants
Despite the importance of gastrointestinal diseases and their global distribution, affecting millions of individuals around the world, the role and antimicrobial susceptibility patterns of anaerobic bacteria such as those in the Bacteroides fragilis group (BFG) are still unclear in young children. This study investigated the occurrence and distribution of sp
Brazilian Journal of Microbiology. Publicado em: 2010-10
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5. Species of the Bacteroides fragilis group in calves with and without diarrhea: occurrence, virulence factors and molecular characterization. / Espécies do grupo Bacteroides fragilis em bezerros com e sem diarréia aguda: ocorrência, fatores de virulência e caracterização molecular
In this study the bacteria of Bacteroides fragilis group was evaluated in 108 fecal samples of calves with and without diarrhea, besides virulence factors and the genetic similarity among the B. fragilis strains. Hemolysin was observed in 36.3% and in 83.7% of calves with and without diarrhea, respectively. Only 7.4% of the isolates showed hemagglutinability
Publicado em: 2007
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6. Survey of antimicrobial susceptibility patterns of the bacteria of the Bacteroides fragilis group isolated from the intestinal tract of children
The bacteria of the Bacteroides fragilis group are considered important clinical pathogens and they are the most common anaerobes isolated from human endogenous infections. In this study, the susceptibility patterns to antibiotics and metals of 114 species of the B. fragilis group isolated from children with and without diarrhea were determined. Susceptibili
Memórias do Instituto Oswaldo Cruz. Publicado em: 2004-05
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7. Virulence markers and antimicrobial susceptibility of bacteria of the Bacteroides fragilis group isolated from stool of children with diarrhea in São Paulo, Brazil
Bacteroides fragilis has been isolated from several human and non-human monomicrobial and mixed infections. In this study, some virulence markers and the antimicrobial susceptibility of bacteria of the B. fragilis group isolated from children's stools were evaluated. All the 64 isolates showed the following characteristics: capsulated, beta-hemolytic, hydrop
Memórias do Instituto Oswaldo Cruz. Publicado em: 2004-05
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8. Rapid detection and identification of Bacteroides fragilis and Bacteroides melaninogenicus by immunofluorescence.
Bacteroides fragilis group and Bacteroides melaninogenicus group fluorescent-antibody kits were evaluated with 188 clinical specimens and 116 fresh aerobic and anaerobic bacterial isolates. Fluorescent-antibody and culture results corresponded in 88% of clinical specimens of the B. fragilis group and 94% of clinical specimens of the B. melaninogenicus group.
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9. Activity of trospectomycin against Bacteroides fragilis and other Bacteroides species.
The in vitro activity of trospectomycin (U-63366; 6'-n-propyl spectinomycin pentahydrate sulfate) was evaluated against 189 clinical isolates of the Bacteroides fragilis group and 65 Bacteroides species isolates. At less than or equal to 8 micrograms/ml, the activity of trospectomycin compared favorably with those of clindamycin and cefoxitin against B. frag
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10. gyrA Mutations Associated with Quinolone Resistance in Bacteroides fragilis Group Strains
Mutations in the gyrA gene contribute considerably to quinolone resistance in Escherichia coli. Mechanisms for quinolone resistance in anaerobic bacteria are less well studied. The Bacteroides fragilis group are the anaerobic organisms most frequently isolated from patients with bacteremia and intraabdominal infections. Forty-four clinafloxacin-resistant and
American Society for Microbiology.
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11. Activity of newer beta-lactam agents against clinical isolates of Bacteroides fragilis and other Bacteroides species.
The in vitro activities of beta-lactam antibiotics against Bacteroides fragilis and B. fragilis group isolates are presented. Clinical isolates from 1986 were compared with strains from 1979 to 1982. Imipenem, ticarcillin-clavulanic acid, and ceftizoxime were the most active agents. Cefotetan was equivalent to cefoxitin against B. fragilis but less active ag
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12. In Vitro Activities of Tigecycline against the Bacteroides fragilis Group
The in vitro activities of tigecycline were tested against 831 isolates of the Bacteroides fragilis group representing all of the species within the group. On a weight-to-weight basis (8 μg/ml), tigecycline was more active than clindamycin, minocycline, trovafloxacin, and cefoxitin and less active than imipenem or piperacillin-tazobactam against all isolate
American Society for Microbiology.