Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 51 for “"enterotoxin"”.
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Untersuchungen zu Bacillus cereus Enterotoxin-Komplexen auf zellulärer Ebene
… with the in vitro activity of the B. cereus enterotoxin-complexes Hemolysin BL (HBL) and non-hemolytic enterotoxin (Nhe) on cells. For that purpose the cytotoxic and hemolytic activity of crude B. cereus culture supernatants was analyzed in cell culture assays and on blood agar plates. …
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Enhanced chemiluminescent immunoassay for staphylococcal enterotoxin B in foods
… (CLIA) for the detection of staphylococcal enterotoxin B (SEB) in foods was developed. This assay utilizes the $\rho$-iodophenol enhanced oxidation of luminol by hydrogen peroxide as indicator reaction. The reaction was catalyzed by horseradish peroxidase (HRPO) conjugated to immunospecific …
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Sporulation and enterotoxin regulation by sigma factors in Clostridium perfringens
… sporulation is essential in the formation of an enterotoxin (CPE) that is responsible for the symptoms of acute food poisoning. During sporulation, the cell must differentiate into the mother cell and the forespore. Studies in Bacillus subtilis have shown that gene expression during sporulation …
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Identification and characterization of a receptor for Clostridium Difficile enterotoxin
… to determine whether a receptor for C. difficile enterotoxin (toxin A) exists in the brush border membranes (BBMs) of the hamster, an animal known to be extremely sensitive to the action of the toxin. Toxin A was the only antigen adsorbed by the BBMs from the culture filtrate of C. difficile. …
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Staphylococcal Enterotoxin B-Induced Acute Lung Injury:Mechanism and Treatment of Disease
… understanding of the mechanism of Staphylococcal Enterotoxin B (SEB)-induced acute lung injury. More specifically, we demonstrate that iNK T cells, which previously were shown to be only stimulated by glycolipids, can also get activated by a protein antigen, SEB; therefore directly contributing to …
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Enterotoxin B Subunit Lectins as Adjuvants for Improvement of Mucosal Vaccine
… To resolve this problem, bacterial and plant enterotoxin B subunit adjuvants containing a variety of receptor-binding properties were used to enhance the immunogenicity of rotavirus subunit vaccines. Enterotoxin B subunit adjuvants were employed to enhance protection against virus infection. …
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Use of the dog as a test animal for detecting staphylococcal enterotoxin.
<p>http://www.worldcat.org/oclc/11118739</p>
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The enterotoxin producing ability of staphylococci associated with the bovine mammary gland
… pathogenicity and the ability to produce enterotoxin, but not to such a degree that these features can be used as an indication of enterotoxin-producing ability.
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Characterization of the carbohydrate receptors of the <i>Clostridium difficile</i> enterotoxin
Clostridium difficile causes pseudomembranous colitis in humans and a similar ileocecitis in hamsters. This organism can colonize the intestines after antibiotic therapy disrupts the normal intestinal microflora. Once established in the intestines, the organism causes disease by producing two …
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Staphylococcal Enterotoxin B Induced Clonal Anergy in αβ T Cell Receptor Transgenic Mice
<p>Superantigens such as staphylococcal enterotoxin B (SEB) have been widely used to study T cell tolerance. While both clonal deletion and apparent anergy have been described in response to superantigens, it has not been clear whether true anergy occurs, or whether the most reactive T cells are …
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Expression Of Cholera Toxin B Subunit-rotavirus Nsp4 Enterotoxin Fusion Protein In Transgenic Chloroplasts
… a peptide, which functions both as a viral enterotoxin and as a factor involved in the acquisition of host cell membrane during virus budding from cells, provides a new approach for mucosal immunization. Protein expression through chloroplast transformation system offers a number of …
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Detection of Clostridium Perfringens Enterotoxin and Its Relation to Sensory Quality of Cooked Chicken
… to increase to log(,10) 5.19/g at 14 hrs. Enterotoxin (0.19 (mu)g/g) was first detected after 2 hrs of incubation (1.5 hr at 45(DEGREES)C and 0.5 hr at 37(DEGREES)C) in the absence of detectable sporulation, and the enterotoxin increased to 0.76 (mu)g/g after 14 hrs. The organoleptic …
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Interaction of enteroluminal neutrophils and the Escherichia coli heat-stable enterotoxin b with porcine small intestine
… one contained a plasmid carrying the heat-stable enterotoxin b (STb) gene, while the other did not. Morphometric techniques were used to assess villous epithelial surface areas and mucosal volumes in both intestinal segments exposed to STb-positive (test) and to STb-negative (control) supernates. …
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Over-expression in Escherichia coli of the ToxA51 llama single domain antibody targeting Clostridium difficile enterotoxin A
Single domain antibodies (sdAb) have emerged as a family of novel antibodies that have vast applications. Of particular relevance, ToxA5.l, a sdAb capable of binding to, and therefore neutralizing, Clostridium difficile toxin A (TcdA) has been developed. The antibiotic resistant version of C. …
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Ταχεία ανίχνευση της εντεροτοξίνης του C. perfringens τύπου Α με την ανοσοενζυμική μέθοδο ELISA, σε κόπρανα ασθενών με συμπτώματα τροφικής δηλητηρίασης
… for the food poisonings in human, worldwide. Its enterotoxin produced during the sporulation is particularly considered to be responsible for the development of the food poisoning, symptoms. The detection of its enterotoxin in feces of patients with diarrhoea is a diagnostic criterion of food …
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THE EFFECT OF STRINGENT CONTROL ON THE PRODUCTION OF ENTEROTOXIN, TRYPTOPHANASE, AND BETA-GALACTOSIDASE BY ESCHERICHIA COLI IN A RECYCLING FERMENTOR
… strains were determined.</p><p>Both enterotoxin production and secretion in E. coli H10407 grown at pH 8.5 were shown to be positively controlled by ppGpp during phases 2 and 3, while tryptophanase and (beta)-galactosidase were more negatively affected by ppGpp. An enhancing effect by …
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The association of Clostridium perfringens with foal diarrhoea
… with fatal diarrhoea. <br></br><br></br>Enterotoxin production was detected by reverse passive latex agglutination test (RPLA) amongst isolates of <i>C. perjringens</i> from scouring and healthy foals. The enterotoxin gene from an equine strain was cloned and its sequence was essentially …
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Regulation of Arachidonic Acid Pathway and Eosinophilic Inflammation in Chronic Rhinosinusitis/ Nasal Polyposis. Potential Role of Staphylococcus aureus Enterotoxins
… our group, we studied the influence of S. aureus enterotoxins in the regulation of both eosinophilic inflammatory and eicosanoid pathways. We first show that nasal polyposis/aspirin intolerance was associated with increased concentrations of eosinophil-related mediators, as well as of IgE …
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