Browsing Brody School of Medicine by Subject "Bacteroides fragilis"
Now showing items 1-10 of 10
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Aerobic-Type Ribonucleotide Reductase in the Anaerobe Bacteroides fragilis
(East Carolina University, 2002-02)Bacteroides fragilis, a component of the normal intestinal flora, is an obligate anaerobe capable of long-term survival in the presence of air. Survival is attributed to an elaborate oxidative stress response that controls ... -
Analysis of rRNA restriction fragment length polymorphisms from Bacteroides spp. and Bacteroides fragilis isolates associated with diarrhea in humans and animals.
(East Carolina University, 1992-04)The Escherichia coli rRNA operon rrnB was used as a 32P-labeled hybridization probe in Southern blots of genomic DNAs from representative strains of the saccharolytic, gram-negative, obligate anaerobes of the genus Bacteroides. ... -
Characterization of Bacteroides fragilis Hemolysins and Regulation and Synergistic Interactions of HlyA and HlyB
(East Carolina University, 2006-04)This study describes the presence of 10 hemolysin orthologs in the genome of the opportunistic human anaerobic pathogen Bacteroides fragilis, which is currently classified as a nonhemolytic bacterium. The hemolysins were ... -
Characterization of the Primary Starch Utilization Operon in the Obligate Anaerobe Bacteroides fragilis: Regulation by Carbon Source and Oxygen
(East Carolina University, 2006-07)The opportunistic pathogen Bacteroides fragilis is a commensal organism in the large intestine, where it utilizes both dietary and host-derived polysaccharides as a source of carbon and energy. In this study, a four-gene ... -
Cloning and characterization of the endogenous cephalosporinase gene, cepA, from Bacteroides fragilis reveals a new subgroup of Ambler class A beta-lactamases.
(East Carolina University, 1993-11)Bacteroides frgiglis CS30 is a clinical isolate resistant to high concentrations of benzylpenicillin and cephaloridine but not to cephamycin or penem antibiotics. beta-Lactam resistance is mediated by a chromosomally encoded ... -
Expression of hemolysins in vivo and role of HlyBA in an intra-abdominal infection model
(2013-04)Bacteroides fragilis is the most frequent opportunistic pathogen isolated from anaerobic infections. However, there is a paucity of information regarding the genetic and molecular aspects of gene expression of its virulence ... -
Function and regulation of the polysaccharide utilization locus, don, in the gut symbiont bacteroides fragilis
(East Carolina University, 2014)Bacteroides fragilis is the most common anaerobe isolated from clinical infections and in this report we demonstrate a novel feature of the species that is critical to their success as an opportunistic pathogen. Among the ... -
Insertional activation of cepA leads to high-level beta-lactamase expression in Bacteroides fragilis clinical isolates.
(East Carolina University, 1994-07)Bacteroides fragilis is an important opportunistic pathogen of humans and is resistant to many drugs commonly used to treat anaerobic infections, including P-lactams. A strain set comprised of B. fragilis isolates producing ... -
Investigations into the roles of bacteroides fragilis thioredoxins during the oxidative stress response
(East Carolina University, 2011)The Gram-negative Bacteroides fragilis is the most frequently isolated bacterium from anaerobic infections. Native to the human intestinal tract, it serves a symbiotic role breaking down complex polysaccharides and ... -
Role of the Iron Storage Ferritins Dps and DpsL during the Prolonged Oxidative Stress Response of Bacteroides fragilis
(East Carolina University, 2015-12-02)Bacteroides fragilis is a Gram negative anaerobe and member of the human intestinal tract microbiome. B. fragilis serves many beneficial roles within the intestinal tract; however, its translocation to the peritoneal cavity ...