Lymphoid Depletion
Mostrando 1-12 de 125 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. Imunoexpressões pulmonar e esplênica das citocinas IL-12, TGF-β e TNF-α e das proteínas Lisozima e S-100 em Pontoporia blainvillei (Gervais e dOrbigny, 1844) (Mammalia, Cetacea) / Pulmonary and splenic immunoexpression of IL-12, TGF-β and TNF-α cytokines and S-100 and Lysozyme proteins in Pontoporia blainvillei (Gervais e dOrbigny, 1844) (Mammalia, Cetacea)
Compreender a função das diferentes proteínas e citocinas durante a vigência de alterações inflamatórias pode contribuir para um melhor conhecimento do sistema imunológico dos mamíferos marinhos e sua relação com os processos patológicos. A toninha, Pontoporia blainvillei, é um cetáceo costeiro e o único golfinho brasileiro considerado ameaça
Publicado em: 2010
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3. Detecção do TAstV-2 (Turkey astrovirus type 2) em perus (Meleagris gallopavo)
The reverse transcription polymerase chain reaction (RT-PCR) of turkey astrovirus (TAstV) capsid and polymerase gene was applied in the bursa of Fabricius (BF), thymus (TH), spleen (SP) and cloacal swabs (CS) from young poults with PEMS (Poult Enteritis Mortality Syndrome). The histological lesions were atrophy, lymphoid depletion, cellular infiltration and
Publicado em: 2008
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4. Experimental autotransplant of spleen / Autotransplante experimental de baço
The spleen is a lymphoid organ that plays important part in the organism defense, participating in filtration processes, phagocytosis and immunoglobulin production. Histologically, is formed by a stroma and the parenquima being its cellular arrangement differentiated in white and red pulps. The main cellular types in the splenic structure are: T and B lympho
Publicado em: 2008
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5. STUDY OF OXIDATIVE PROFILE AND ACETYLCHOLINESTERASE ACTIVITY IN PATIENTS WITH ACUTE LYMPHOBLASTIC LEUKEMIA. / ESTUDO DO PERFIL OXIDATIVO E ATIVIDADE DA ENZIMA ACETILCOLINESTERASE EM PACIENTES COM LEUCEMIA LINFOBLÁSTICA AGUDA (LLA)
Acute lymphoblastic leukemia (ALL) is the most common cancer found in the pediatric population and is characterized by uncontrolled proliferation and maturation arrest of lymphoid progenitor cells (lymphoblasts) in the bone marrow. In ALL occurs an increase in the production of reactive species and studies show the involvement of oxidative stress in ALL path
Publicado em: 2008
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6. Miopatia dorsal cranial em frangos de corte: caracterização anatomopatológica, colheita e análise de dados
¿Miopatia dorsal cranial¿ (MDC) or dorsal cranial myopathy affects broiler chickens as early as their 33rd day of life, occurring almost exclusively on slaughter lines and in different slaughterhouses in the three southern states of Brazil where it has been causing economical losses, due to the resulting condemnation or downgrading of carcasses. It is caus
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2008
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7. Patologia e caracterização molecular de Neorickettsia Helminthoeca em cães no Brasil
Neorickettsia helminthoeca, an intracellular obligate bacterium, is the cause of salmon poisoning disease (SPD) of canids. The digenean trematode, Nanophyetus salmincola, is the vector of the bacterium, which maintains the pathogen throughout its entire life cycle, that includes a river snail (Oxytrema silicula), fishes (principally, salmon and trout), and c
Publicado em: 2006
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8. CD4+ T-Lymphocyte Depletion in Human Lymphoid Tissue Ex Vivo Is Not Induced by Noninfectious Human Immunodeficiency Virus Type 1 Virions
We tested infectious human immunodeficiency virus type 1 (HIV-1), noninfectious but conformationally authentic inactivated whole HIV-1 virions, and purified gp120 for the ability to induce depletion of CD4+ T cells in human lymphoid tissues ex vivo. Infectious CXCR4-tropic HIV-1, but not matched inactivated virions or gp120, mediated CD4+ T-cell depletion, c
American Society for Microbiology.
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9. Transgenic dissection of HIV genes involved in lymphoid depletion.
Transgenic mice carrying an HIV provirus, with selective deletion of all three structural genes, developed extensive lymphoid depletion which was detected not only in the spleen and lymph nodes but also in the thymus. Mice with a high level of HIV gene expression developed acute disease which resulted in premature death, and mice with a low level of viral tr
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10. Human Immunodeficiency Virus Type 1 Coreceptor Preferences Determine Target T-Cell Depletion and Cellular Tropism in Human Lymphoid Tissue
The present study sought to determine how usage of coreceptors by human immunodeficiency virus type 1 dictates cell tropism and depletion of CD4+ T cells in human lymphoid tissues cultured ex vivo. We found that coreceptor preferences control the marked, preferential depletion of coreceptor-expressing CD4+ lymphocytes. In addition, there was a strong, but no
American Society for Microbiology.
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11. CD4 Down-Modulation by Human Immunodeficiency Virus Type 1 Nef Correlates with the Efficiency of Viral Replication and with CD4+ T-Cell Depletion in Human Lymphoid Tissue Ex Vivo
The human immunodeficiency virus type 1 (HIV-1) Nef protein is an important virulence factor. Nef has several functions, including down-modulation of CD4 and class I major histocompatibility complex cell surface expression, enhancement of virion infectivity, and stimulation of viral replication in peripheral blood mononuclear cells. Nef also increases HIV-1
American Society for Microbiology.
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12. Asymptomatic Simian Immunodeficiency Virus Infection Decreases Blood CD4+ T Cells by Accumulating Recirculating Lymphocytes in the Lymphoid Tissues†
Declining blood CD4+ T-cell counts mark the progress of simian immunodeficiency virus (SIV) disease in macaques and model the consequences of untreated human immunodeficiency virus infection in humans. However, blood lymphocytes are only a fraction of the recirculating lymphocyte pool, and their numbers are affected by cell synthesis, cell depletion, and dis
American Society for Microbiology.