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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 19 of 19 for “"Intestinal microflora"”.
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The effects of oligosaccharides and probiotic bacteria on the intestinal microflora and vancomycin-resistant enterococcus
… bifidobacteria and inulin on several gastrointestinal indices, and 5) to investigate the effect of probiotic bacteria on the suppression of vancomycin-resistant enterococcus in vitro.
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The effects of potential dietary prebiotics and grain particle size on the growth performance and intestinal microflora of young poultry
Experiments were conducted to evaluate the effects of grain particle size and several potential prebiotic feed additives when fed for varying lengths of time on growth performance, nutrient utilization, and select cecal and ileal microbial populations in young chicks. In addition, some of these …
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Utilization of selected dietary fibers by dogs and cats
… that may influence the fermentative activity of intestinal microflora. In vitro fiber fermentation with dog fecal microflora indicated least fermentation occurred for Solka Floc$\sp\circler$ and oat fiber while greatest fermentation occurred for fructooligosaccharides, lactulose, citrus pectin, …
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Immunomodulatory effects of dietary fibre supplementation: effects on cytokine and antibody production and lymphocyte population profiles
Gastrointestinal microflora has been shown to have a bi-directional relationship with the host immune system. A variety of fermentable carbohydrate polymers largely pass through the small intestine, providing fermentable substrates for gut microflora. Dietary fibre supplementation may provide a …
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Pet food: quality and quality improvement
… capable of exert a probiotic effect on dog intestinal microflora. A L. animalis strain was isolated from the faeces of 17 adult healthy dogs..The isolated strain was first studied in vitro when it was added to a canine faecal inoculum (at a final concentration of 6 Log CFU/mL) that was …
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A potential nutraceutical from Leuconostoc mesenteroides B-742 (ATCC 13146); production and properties
… sp., or E. coli, pointing toward their use in intestinal microflora modification. Branched a-glucooligosaccharides were non-competitive inhibitors of a-glucosidase (maltase), an enzyme required for starch or maltodextrin utilization.
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Characterization of the carbohydrate receptors of the <i>Clostridium difficile</i> enterotoxin
… after antibiotic therapy disrupts the normal intestinal microflora. Once established in the intestines, the organism causes disease by producing two toxins, designated toxin A and toxin B. Only toxin A is active on intestinal epithelium, thus toxin A is the cause of the initial tissue damage …
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Profiling of urinary metabolites in human pregnancy
… were assessed for effects of diet, drugs, and intestinal microflora. Twelve acidic metabolites were excreted in greater amounts by pregnant women compared to nonpregnant women. Four acidic metabolites were excreted in greatly increasing amounts as pregnancy progressed: lactic acid, glycolic …
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Studies of Sulfur Reduction of Taurine and Taurine-Conjugated Bile Acids by Bile acid 7α-Dehydroxylating Bacteria
… the liver from cholesterol and secreted into the intestinal lumen to aid in emulsification of dietary lipids and lipid-soluble vitamins. The indigenous intestinal microflora modify bile acids, producing up to 20 unique bile acid metabolites. The 7α-dehydroxylation of the bile acids is the most …
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The Ligand and Function of the RegIII Family of Bactericidal C-Type Lectins
… microbes must be prevented from crossing the intestinal epithelium into host tissues where they can cause inflammation and sepsis. The innate immune system plays a crucial role in preventing bacterial incursions across gut epithelial surfaces. Mucosal epithelial cells produce a variety of …
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Effect of feeding fumaric or citric acid on weanling pig performance and selected intestinal digesta measurements at varying times postweaning
… fumaric or citric acid on growth performance, intestinal digesta pH, chloride ion concentration (Cl-), VFA profile and microflora populations was studied. In study 1, feeding citric acid improved ADG and feed conversion (F:G), whereas fumaric acid only numerically improved ADG and F:G. No …
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Growth and Viability of Bifidobacterium Bifidum in Cheddar Cheese
… products help in maintaining a healthy normal microflora in the human intestine and prevent enteropathogens from colonizing. The presence of LAB in the intestine promotes the production of the B vitamins and is also believed to activate the immune system and inactivate toxic compounds (22). …
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Nutritional parameters associated with enteric Escherichia coli and rotavirus in poults
… syndrome by digestibility trials and assay of intestinal mucosaI enzyme activities. The strain of E. coli used in these experiments was isolated from the yolk sac of stunted poults. Inoculation of day-old poults was done orally in one experiment and via the yolk sac in another series of …
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Acetaldehyde and Epithelial Junctions: Role of Pp2A and Occludin Phosphorylation
… which can enter the bloodstream when gastrointestinal tight junctions, protein complexes that prevent paracellular passage of molecules, are compromised. The mechanisms of this barrier disruption are the subject of current study.</p> <p>Acetaldehyde, produced as a result of ethanol breakdown …
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Impatto di rifaximina sul microbiota intestinale: selezione di bifidobatteri antibiotico resistenti
The ideal approach for the long term treatment of intestinal disorders, such as inflammatory bowel disease (IBD), is represented by a safe and well tolerated therapy able to reduce mucosal inflammation and maintain homeostasis of the intestinal microbiota. A combined therapy with antimicrobial …
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Analysis of the genome organization and fitness traits of non-pathogenic Escherichia coli strain Nissle 1917 (O6:K5:H1)
… this strain’s probiotic effect as part of the intestinal microflora. Four genomic islands (GEI I-IVNissle 1917) were identifed and characterized. They contain many known fitness determinants (mch/mcm, foc, iuc, kps, ybt), as well as novel genes of unknown function, mobile genetic elements or …
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The damaged mucosal barrier in intestinal inflammation: interaction with therapeutic bacteria and roles for metallothioneins as immunomodulators
… Furthermore, it has become clear that the intestinal epithelial cell lining exerts an important role in the identification of bacteria and the appropriate counteraction. The involvement of the innate immune system can be explained by two theories. The first one states that an exaggerated …
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Modes of action of antimicrobial garlic derivatives
… growth media (TSB and MRS), simulated intestinal fluids (simple and complex) to highly complex 'real' gut fluids (ileostomy effluents). In addition it was observed that the different chemical compositions of the various media can influence the antimicrobial effectiveness of G. O. 9) The …
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In-Vivo and In-Vitro Cholesterol Removal by Lactobacilli and Bifidobacteria
… or prebiotics. The effect of the synbiotic on intestinal microflora and concentration of organic acids was also investigated. The spleen, liver and kidney were analysed to determine the presence of lactobacilli which may indicate translocational property of the probiotic. The LFM diet lowered …