The Gut Associated Lymphoid Tissue
Mostrando 1-12 de 57 artigos, teses e dissertações.
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1. Gut: Key Element on Immune System Regulation
Abstract The gut is the main organ that mediates the contact between antigens with our organism, controlling the immune response against environmental factors, such as microbiota and food. Innate lymphoid cells participate in the gut-associated lymphoid tissue (GALT) maturation during the prenatal and early postnatal periods. After birth, breast milk provide
Braz. arch. biol. technol.. Publicado em: 13/06/2019
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2. Immunoglobulin production is impaired in protein-deprived mice and can be restored by dietary protein supplementation
Most contacts with food protein and microbiota antigens occur at the level of the gut mucosa. In animal models where this natural stimulation is absent, such as germ-free and antigen-free mice, the gut-associated lymphoid tissue (GALT) and systemic immunological activities are underdeveloped. We have shown that food proteins play a critical role in the full
Brazilian Journal of Medical and Biological Research. Publicado em: 14/11/2006
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3. O papel das proteínas da dieta na maturação do sistema imune após o desmame e na infecção experimental por Leishmania major
The majority of contacts with foreign antigenic materials occurs on the gut mucosa, and is represented by food proteins and the microbiota. Approximately 30 kg of food proteins reach the human intestine per year and 130±190 g of these proteins are absorbed daily in the gut (Mestecky, 1987). Recently, we described a mouse model where we replaced intact dieta
Publicado em: 2006
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4. Estudo morfológico e morfométrico do intestino delgado de camundongos imunodeprimidos submetidos à dieta enteral contendo prebióticos e contaminada por Klebsiella pneumoniae / Morphological and morphometric study of small intestine of imunodepressed mice subjected to an enteral diet with prebiotics and contaminated by Klebsiella pneumoniae
A translocação bacteriana têm sido freqüentemente relacionadas com dietas hospitalares contaminadas, sendo os indivíduos imunodeprimidos ou com algum tipo de injúria intestinal os principais acometidos. O tecido linfóide associado ao intestino (Gut Associated Lymphoid Tissue, GALT) é um importante regulador do crescimento de bactérias, podendo imped
Publicado em: 2006
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5. IgA response in serum and gut secretion in sensitized mice fed with the dust mite Dermatophagoides pteronyssinus extract
Induced oral tolerance to mucosal-exposed antigens in immunized animals is of particular interest for the development of immunotherapeutic approaches to human allergic diseases. This is a unique feature of mucosal surfaces which represent the main contact interface with the external environment. However, the influence of oral tolerance on specific and natura
Brazilian Journal of Medical and Biological Research. Publicado em: 2004-06
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6. Aspects of gastrointestinal immunology and nutrition in human immunodeficiency virus-1 infection in Brazil
Mucosal surfaces have a fundamental participation in many aspects of the human immunodeficiency virus (HIV) infection pathogenesis. In Brazilian HIV-1 infected subjects, loss of weight and appetite are among the most debilitating symptoms. In this review we describe a defined mucosal immunogen that has profound but transient effects on HIV viral load, and we
Memórias do Instituto Oswaldo Cruz. Publicado em: 2000
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7. The arrangement of gut-associated lymphoid tissues and lymph pathways in the koala (Phascolarctos cinereus).
Gut-associated lymphoid tissues are poorly developed in koalas. They comprise paired caecocolic lymphoid patches, and a few small mesenteric lymph nodes. The patches lie opposite one another in the lateral gut wall at the junction of the ileum, caecum and proximal colon. The lymphoid parenchyma of the patches consists of a layer of nodules and internodular p
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8. Localized gut-associated lymphoid tissue hemorrhage induced by intravenous peptidoglycan-polysaccharide polymers.
A hemorrhage into gut-associated lymphoid tissue developed as early as 3 min after the intravenous injection of group A streptococcal peptidoglycan-polysaccharide polymers into rats. Extravasated erythrocytes were specifically located in the lamina propria and organized lymphoid follicles of the intestines and mesenteric lymph nodes and did not occur in the
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9. Mutation of Pten/Mmac1 in mice causes neoplasia in multiple organ systems
Pten/Mmac1+/− heterozygous mice exhibited neoplasms in multiple organs including the endometrium, liver, prostate, gastrointestinal tract, thyroid, and thymus. Loss of the wild-type allele was detected in neoplasms of the thymus and liver. Surprisingly, tumors of the gastrointestinal epithelium developed in association with gut lymphoid tissue. Tumors
The National Academy of Sciences.
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10. The distribution of organised lymphoid tissue in the alimentary tracts of koalas (Phascolarctos cinereus) and possums (Trichosurus vulpecula and Pseudocheirus peregrinus).
The anatomical arrangement of organised lymphoid tissues of the alimentary tract for 3 Australian marsupials, the koala (Phascolarctos cinereus), the common brushtail possum (Trichosurus vulpecula and the common ringtail possum (Pseudocheirus peregrinus), was determined by gross dissection and acetic acid treatment. Oropharyngeal tonsils were consistently fo
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11. The gut as an inductive site for synovial and extra-articular immune responses in rheumatoid arthritis.
OBJECTIVES--To analyse the immunological interactions between the gut lymphoid tissue, synovium, and peripheral blood compartments in patients with rheumatoid arthritis (RA) and ankylosing spondylitis (AS). METHODS--Patients with RA and AS and healthy controls were orally or parenterally immunised with an influenza virus vaccine. Antigen-specific antibody re
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12. Morphological study of antigen-sampling structures in the rat large intestine.
Organized lymphoid tissue in the rat colon exists as clusters (colonic lymphoid patches) of intramucosal and submucosal follicles in the proximal, mid, and distal colon, interspersed by solitary follicles. The follicular lymphoid cells of colonic lymphoid patches are separated from the gut lumen by a highly specialized lymphoepithelium which lacks mature gob