Food Hypersensitivity
Mostrando 13-24 de 24 artigos, teses e dissertações.
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13. A model of chronic IgE-mediated food allergy in ovalbumin-sensitized mice
Food allergy is most frequently the result of IgE-mediated hypersensitivity reactions. Here, we describe a chronic model in which some of the intestinal and systemic consequences of continuous egg white solution ingestion by ovalbumin-sensitized eight-week-old BALB/c mice, 6 animals per group, of both sexes, were investigated. There was a 20% loss of body we
Brazilian Journal of Medical and Biological Research. Publicado em: 2004-06
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14. Health-related quality of life among adolescents with allergy-like conditions – with emphasis on food hypersensitivity
BioMed Central.
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15. Cryptosporidium parvum Isolate-Dependent Postinfectious Jejunal Hypersensitivity and Mast Cell Accumulation in an Immunocompetent Rat Model▿
Cryptosporidium spp. are a cause of self-limited diarrhea in immunocompetent hosts. In immunocompetent rats, Cryptosporidium parvum infection induced digestive hypersensitivity, a key pathophysiological factor in functional digestive disorders such as irritable bowel syndrome (IBS). In such a rat model, we sought to document whether jejunal hypersensitivity
American Society for Microbiology (ASM).
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16. Food antibodies in oral disease: A study of serum antibodies to food proteins in aphthous ulceration and other oral diseases
We have investigated the incidence of antibodies to food antigens in patients with recurrent minor aphthous ulceration and in patients with other oral ulcerative diseases. The incidence of these antibodies was the same in both groups of patients and was significantly greater than the incidence in a control group of normal people. There was no evidence to sup
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17. Recombinant peanut allergen Ara h I expression and IgE binding in patients with peanut hypersensitivity.
Peanut allergy is a significant health problem because of the frequency, the potential severity, and the chronicity of the allergic sensitivity. Serum IgE from patients with documented peanut hypersensitivity reactions and a peanut cDNA expression library were used to identify clones that encode peanut allergens. One of the major peanut allergens, Ara h I, w
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18. Detection of Listeria monocytogenes in cheese with the magnetic immuno-polymerase chain reaction assay.
A new detection system, the magnetic immuno-polymerase chain reaction (PCR) assay (MIPA) has been developed to detect Listeria monocytogenes in food. This method separates Listeria cells from PCR-inhibitory factors present in enrichment broths containing food samples by using magnetic beads coated with specific monoclonal antibodies (MAbs). The separated bac
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19. Exotoxins of Staphylococcus aureus
This article reviews the literature regarding the structure and function of two types of exotoxins expressed by Staphylococcus aureus, pyrogenic toxin superantigens (PTSAgs) and hemolysins. The molecular basis of PTSAg toxicity is presented in the context of two diseases known to be caused by these exotoxins: toxic shock syndrome and staphylococcal food pois
American Society for Microbiology.
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20. Delayed hypersensitivity responses of experimental animals to histoplasmin from the yeast and mycelial phases of Histoplasma capsulatum.
Controlled yeast lysate (CYL) and controlled mycelial lysate (CML) histoplasmins were produced from Histoplasma capsulatum grown in a nutritionally lean, chemically defined medium. The lysates were assayed for skin-test activity in guinea pigs sensitized by infection with the homologous organism. In some studies, nonliving vaccine preparations were employed
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21. Specific gene probe for detection of biotyped and serotyped Listeria strains.
A total of 284 strains of Listeria, including all known serovars and biovars together with Listeria grayi and Listeria murrayi, were biotyped and serotyped. Biotyping and serotyping could be done in 2 days. A gene probe encoding a delayed hypersensitivity factor (DTH) was used in the detection of pathogenic biotypes and serotypes of the tested strains. The g
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22. Molecular cloning and epitope analysis of the peanut allergen Ara h 3
Peanut allergy is a significant IgE-mediated health problem because of the increased prevalence, potential severity, and chronicity of the reaction. Following our characterization of the two peanut allergens Ara h 1 and Ara h 2, we have isolated a cDNA clone encoding a third peanut allergen, Ara h 3. The deduced amino acid sequence of Ara h 3 shows homology
American Society for Clinical Investigation.
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23. Global Phenotypic Analysis and Transcriptional Profiling Defines the Weak Acid Stress Response Regulon in Saccharomyces cerevisiae
Weak organic acids such as sorbate are potent fungistatic agents used in food preservation, but their intracellular targets are poorly understood. We thus searched for potential target genes and signaling components in the yeast genome using contemporary genome-wide functional assays as well as DNA microarray profiling. Phenotypic screening of the EUROSCARF
The American Society for Cell Biology.
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24. Adaptations of alpha2- and beta-cells of rat and mouse pancreatic islets to starvation, to refeeding after starvation, and to obesity.
The effects of starvation and refeeding and of obesity on pancreatic alpha2- and beta-cell responses to glucose or tolbutamide were studied with the isolated rat or mouse pancreas perfused with an amino acid mixture in the presence and absence of glucose. It was observed that the physiological adaptation to a regimen of fasting and realimentation and to obes