Cd8 Positive T Lymphocytes
Mostrando 1-12 de 214 artigos, teses e dissertações.
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1. Comparative evaluation of memory T cells in COVID-19 patients and the predictive role of CD4+CD8+ double positive T lymphocytes as a new marker
RESUMO OBJETIVO: A pandemia de COVID-19 tem afetado o mundo todo, constituindo uma ameaça grave para a saúde humana. As células T desempenham um papel crítico na imunidade celular contra infecções virais. Procuramos desvendar a relação entre sub grupos de células T e a severidade da doença. MÉTODOS: Um total de 40 pacientes com COVID-19 foram al
Rev. Assoc. Med. Bras.. Publicado em: 2020-12
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2. Subsets of T lymphocytes in the lesional skin of pityriasis rosea
Abstract: Background: Pityriasis rosea is a common papulosquamous disorder. However, its etiology and pathogenesis remain unclear. Objective: We investigate the types of inflammatory cells infiltrating the lesional skin of pityriasis rosea and demonstrate whether T-cell-mediated immunity is involved in the pathogenesis of this condition or not. Methods: T
An. Bras. Dermatol.. Publicado em: 2019-02
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3. Analysis of CD57+ natural killer cells and CD8+ T lymphocytes in periapical granulomas and radicular cysts
Abstract: The aim of this study was to compare the number of CD57+ natural killer (NK) cells and CD8+ T lymphocytes between periapical granulomas (PGs) and radicular cysts (RCs). Twenty-fives cases of PGs and 25 of RCs were submitted to histological analysis and immunohistochemistry using anti-CD57 and anti-CD8 biomarkers. Positive cells were counted in 10 f
Braz. oral res.. Publicado em: 18/12/2017
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4. CYP2B6 516 G>T polymorphism and side effects of the central nervous system in HIV-positive individuals under Efavirenz treatment: Study of a sample from southern Brazil
ABSTRACT This study aimed to identify the 516 G>T polymorphism of the CYP2B6 gene and evaluate its influence on central nervous system (CNS) side effect development in HIV-positive individuals undergoing Efavirenz (EFV) treatment in a population from southern Brazil. Additionally, we performed a survey on the clinical and epidemiological characteristics of o
An. Acad. Bras. Ciênc.. Publicado em: 04/05/2017
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5. Granuloma faciale: clinical, morphological and immunohistochemical aspects in a series of 10 patients
Abstract Granuloma faciale is a chronic, benign, cutaneous vasculitis with well-established clinical and morphological patterns, but with an unknown etiology. This study describes clinical and pathologic aspects of patients diagnosed with granuloma faciale. The authors analyzed demographic, clinical, morphological and immunohistochemical data from patients w
An. Bras. Dermatol.. Publicado em: 2016-12
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6. In situ CUTANEOUS CELLULAR IMMUNE RESPONSE IN DOGS NATURALLY AFFECTED BY VISCERAL LEISHMANIASIS
SUMMARY Thirty-eight dogs naturally affected by visceral leishmaniasis were recruited in Araçatuba, São Paulo State, Brazil - an endemic area for visceral leishmaniasis. The animals were distributed into one of two groups, according to their clinical and laboratory features, as either symptomatic or asymptomatic dogs. Correlations between clinical features
Rev. Inst. Med. trop. S. Paulo. Publicado em: 11/07/2016
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7. Leukocytosis, muscle damage and increased lymphocyte proliferative response after an adventure sprint race
The effect of an adventure sprint race (ASR) on T-cell proliferation, leukocyte count and muscle damage was evaluated. Seven young male runners completed an ASR in the region of Serra do Espinhaço, Brazil. The race induced a strong leukocytosis (6.22±2.04×103 cells/mm3 before vs 14.81±3.53×103 cells/mm3 after the race), marked by a significant increase
Braz J Med Biol Res. Publicado em: 2014-06
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8. Intestinal parasitic infections in HIV/AIDS patients: epidemiological, nutritional and immunological aspects
This study applied a socioeconomic questionnaire designed to evaluate the frequency of intestinal parasites and characterize epidemiological, nutritional, and immunological variables in 105 HIV/AIDS patients - with and without parasitic infections, attending the Day Hospital in Botucatu, UNESP, from 2007 to 2008. Body mass index was calculated and the follow
Journal of Venomous Animals and Toxins including Tropical Diseases. Publicado em: 2012
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9. Perfil fenotípico de linfócitos T CD8+ na fase aguda da dengue / Phenotypic profile of CD8+ T cells in acute dengue infection
A dengue é uma doença infecciosa aguda causada pelo vírus DEN do gênero Flavivirus e é transmitida pela picada de um mosquito vetor, principalmente o Aedes aegypti. Existem quatro sorotipos do vírus da dengue (DEN-1, DEN-2, DEN-3 e DEN-4) e sua incidência tem aumentado dramaticamente nos últimos 50 anos, inclusive no Brasil. O objetivo deste trabalho
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/10/2011
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10. The crude latex of Euphorbia tirucalli modulates the cytokine response of leukocytes, especially CD4+ T lymphocytes
The plants of the Euphorbiaceae family, especially those of the genus Euphorbia, are frequently used by Brazilian folk communities to treat a wide variety of infectious, tumoral and inflammatory illnesses. Among the species of this genus, Euphorbia tirucalli L. is widely used in some Brazilian regions, such as the Jequitinhonha River Valley. There is evidenc
Revista Brasileira de Farmacognosia. Publicado em: 03/06/2011
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11. Quantification of CD8+CD38+ T lymphocytes by flow cytometry does not represent a good biomarker to monitor the reactivation of cytomegalovirus infection after allogeneic hematopoietic stem cell transplantation
BACKGROUND: Infection/reactivation of cytomegalovirus is a major cause of morbidity and mortality in immunocompromised transplant patients. It has already been observed in kidney and liver transplantation patients that cytomegalovirus disease is accompanied by significant increases in circulating CD8+CD38+ T lymphocytes. There are no reports that study CD8+C
Revista Brasileira de Hematologia e Hemoterapia. Publicado em: 2011
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12. Tissue and serum immune response in chronic hepatitis C with mild histological lesions
The immunopathogenesis of chronic hepatitis C virus (HCV) infection is a matter of great controversy and has been suggested to involve a complex balance between cytokines with pro and anti-inflammatory activity. We investigated the expression of inflammatory cells and cytokines in the liver and serum of 51 chronically HCV infected patients and compared them
Memórias do Instituto Oswaldo Cruz. Publicado em: 2010-02