T Lymphocyte Subsets
Mostrando 13-24 de 249 artigos, teses e dissertações.
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13. Avaliação do estresse oxidativo sob a resposta imune de bovinos infectados pelo vírus da leucose enzoótica bovina / Evaluation of oxidative stress on the immune response of bovine leukemia virus-infected dairy cows
Abundant observations of multiple pathogenic interactions between reactive oxygen species (ROS) and the pathogenesis of some retroviruses have drawn attention to role of ROS on disease progression and/or persistence of infection. Therefore, the role of the oxidative stress resulted from the modulation of the antioxidant system in dairy cows naturally infecte
Publicado em: 2010
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14. Subpopulações linfocitárias em ratos submetidos a esplenectomia total isolada ou combinada com auto-implante esplênico e a suplementação dietética com L-glutamina / Lymphocyte subsets in rats subjected to total splenectomy isolated or combined with spleen tissue implantation and dietary supplementation with L-glutamine
A esplenectomia total (ET) acarreta alterações na resposta imune que aumentam o risco de desenvolvimento de infecções graves. Objetivou-se determinar as subpopulações linfocitárias no sangue, nos baços e nos auto-implantes esplênicos (AIE), em ratos submetidos a ET isolada ou combinada com AIE (ET+AIE) e a suplementação dietética com L-glutamina
Publicado em: 2010
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15. Estudo das subpopulações linfocitárias em sangue de cordão umbilical e perfil de citocinas em recém-nascidos expostos ao HIV durante a gestação / Lymphocyte subsets study in cord blood profile of cytokines in neonatal exposed to HIV during pregnancy
Recém-nascidos de mulheres portadoras do vírus HIV, durante a gestação são expostos a algumas drogas e citocinas que podem alterar o desenvolvimento de seu sistema imunológico e influenciar a resposta imune dessas crianças às infecções e vacinas. Nós analisamos as subpopulações dos linfócitos, a maturação dos linfócitos B e o perfil de citoc
Publicado em: 2010
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16. Autoimmune diseases in the TH17 era
A new subtype of CD4+ T lymphocytes characterized by the production of interleukin 17, i.e., TH17 cells, has been recently described. This novel T cell subset is distinct from type 1 and type 2 T helper cells. The major feature of this subpopulation is to generate significant amounts of pro-inflammatory cytokines, therefore appearing to be critically involve
Brazilian Journal of Medical and Biological Research. Publicado em: 2009-06
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17. Reference range for T lymphocytes populations in blood donors from two different regions in Brazil
This study defined the normal variation range for different subsets of T-lymphocyte cells count in two different Brazilian regions. We analysed the T-lymphocytes subpopulations (CD3+, CD4+, CD8+) in blood donors of two Brazilian cities, located in North (Belem, capital state of Para, indian background) and Northeast (Salvador, capital state od Bahia, African
Brazilian Journal of Infectious Diseases. Publicado em: 2009-06
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18. Impact of cytomegalovirus and grafts versus host disease on the dynamics of CD57+CD28-CD8+ T cells after bone marrow transplant
OBJECTIVES: The present study aimed to evaluate the dynamics of CD28 and CD57 expression in CD8+ T lymphocytes during cytomegalovirus viremia in bone marrow transplant recipients. METHODS: In a prospective study, blood samples were obtained once weekly once from 33 healthy volunteers and weekly from 33 patients. To evaluate the expression of CD57 and CD28 on
Clinics. Publicado em: 2008
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19. The sample processing time interval as an influential factor in flow cytometry analysis of lymphocyte subsets
The objective of this paper is to propose a protocol to analyze blood samples in yellow fever 17DD vaccinated which developed serious adverse events. We investigated whether or not the time between sample collection and sample processing could interfere in lymphocyte subset percentage, for it is often impossible to analyze blood samples immediately after col
Memórias do Instituto Oswaldo Cruz. Publicado em: 2007-02
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20. Células de doadores normais primadas in vitro respondem ao antígeno ovular solúvel e ao peptídeo sintético MAP4 derivado da triose fosfato isomerase do Schistosoma mansoni. / Cells of normal primed givers in vitro answer to the antigen to ovular soluble and synthetic peptíde MAP4 derived from triose-phosphate isomerase of the Schistosoma mansoni.
It has been well established that Schistosoma mansoni induces an initial CD4+ T-cell response. The early events in the immune response to schistosomiasis have been evaluated in mice but few studies have focused on the early response in humans, especially in regard to parasite antigens that are potential vaccine candidates. To study the early immune response
Publicado em: 2007
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21. Clinical forms and outcome of tuberculosis in HIV-infected patients in a tertiary hospital in São Paulo - Brazil
Tuberculosis (TB)/HIV co-infection significantly changes the natural history of both diseases. Proper comprehension and clinical management of co-infected TB/HIV patients is still a challenge, particularly in places like Brazil, where both types of infection are prevalent. OBJECTIVES: Evaluate the frequency of the clinical forms of TB in HIV-infected patient
Brazilian Journal of Infectious Diseases. Publicado em: 2005-12
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22. Lymphocyte subset analyses in healthy adults vaccinated with yellow fever 17DD virus
In this study the kinetics of humoral and cellular immune responses in first-time vaccinees and re-vaccinees with the yellow fever 17DD vaccine virus was analyzed. Flow cytometric analyses were used to determine percentual values of T and B cells in parallel to the yellow fever neutralizing antibody production. All lymphocyte subsets analyzed were augmented
Memórias do Instituto Oswaldo Cruz. Publicado em: 2005-05
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23. Avaliação da reconstituição imunológica e da resposta anti-citomegalovirus nos receptores de transplante de medula óssea / Anti-cytomegalovirus immunity reconstitution following autologous and allogeneic stem cell and bone marrow transplantation as assessed by CD8+ T cell phenotyping and functio
O citomegalovírus (CMV) é uma séria ameaça aos receptores de transplante de medula óssea. A reativação está associada com uma imunidade mediada por células TCD8+ defeituosa. Nosso objetivo foi correlacionar as diferentes subpopulações de células TCD8+ com a reconstituição imunológica dos pacientes, especificamente a imunidade anti-CMV, analisa
Publicado em: 2005
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24. Normal skin of HIV-infected individuals contains increased numbers of dermal CD8 T cells and normal numbers of Langerhans cells
Dysregulation of the skin immune system (SIS) could explain the high prevalence of skin disorders in HIV+ individuals. The present study was carried out to determine whether alterations in the cell population of SIS and epidermal immunoactivation occur in the normal skin of HIV+ individuals. Forty-five biopsies were taken from the normal upper arm skin of 45
Brazilian Journal of Medical and Biological Research. Publicado em: 2004-05