نتایج جستجو برای: exotoxins
تعداد نتایج: 1304 فیلتر نتایج به سال:
1 Bacterial Pathogenesis Unit, Laboratory of Clinical Infectious Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA, 2 Department of Microbiology and Immunology, Stanford School of Medicine, Stanford University, Stanford, CA, USA, 3 Zentrum für Infektiologie, Medizinische Mikrobiologie und Hygiene, Universitätsklinikum Heidelberg, H...
After incubation with various agents in vitro, the lethal effects of aqueous solutions of Cl. perfringens alpha toxin, C. diphtheriae toxin, and E. coli endotoxin were tested in mice, guinea pigs, and rabbits, respectively. Iron, copper, cysteine, ascorbic acid, and versene counteracted the lethal effects of alpha toxin in mice, while magnesium, manganese, zinc, and citrate did not. Iron also c...
Pseudomonas aeruginosa is a frequent human pathogen that increasingly causes chronic infections of nonhealing wounds. Here we present the 6.8 Mb draft genome of strain WS394, a multidrug-resistant chronic ulcer isolate that exhibited outstanding high cell cytotoxicity despite defective secretion of exotoxin U, suggesting a habitat-dependent adaptation process.
This study considers gene location within bacteria as a function of genetic element mobility. Our emphasis is on prophage encoding of bacterial virulence factors (VFs). At least four mechanisms potentially contribute to phage encoding of bacterial VFs: (i) Enhanced gene mobility could result in greater VF gene representation within bacterial populations. We question, though, why certain genes b...
Streptococcus pyogenes T1 was previously found to produce an acidic mitogenic exotoxin, designated A beta, antigenically distinct from erythrogenic toxin type A (ETA) of strains T1 and NY5. Following chemical analysis and biological characterization, we have renamed this toxin streptococcal mitogenic exotoxin Z (SMEZ). Physicochemical separation of SMEZ from ETA was successfully performed on a ...
The roles of endogenous cytokines induced by either intact staphylococcal microorganisms or staphylococcal exotoxins were examined using human whole-blood cultures. To accomplish this, interleukin-18 binding protein (IL-18BP) and tumor necrosis factor binding protein (TNFbp) were used to neutralize IL-18 and TNF, respectively, whereas an anti-IL-12 monoclonal antibody was used to neutralize IL-...
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