Enzyme Immunoassay
Mostrando 25-36 de 1409 artigos, teses e dissertações.
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25. GLUTAMIC ACID IMPROVES BODY WEIGHT GAIN AND INTESTINAL MORPHOLOGY OF BROILER CHICKENS SUBMITTED TO HEAT STRESS
ABSTRACTThe objective of this study was to evaluate the effects of 1% dietary glutamic acid on the body weight, intestinal morphometry, and anti-Newcastle antibody titers of broiler chickens submitted to heat stress. One-d-old male broiler chicks (n=120) were distributed according to a 2 x 2 factorial design with two environmental temperatures (thermoneutral
Rev. Bras. Cienc. Avic.. Publicado em: 2015-09
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26. Comparison among the BED capture enzyme immunoassay test and AxSYM avidity index assay for determining recent HIV infection and incidence in two Voluntary Counselling and Testing Centres in Northeast Brazil
The aims of this study were to compare the automated AxSYM avidity assay index with the BED capture enzyme immunoassay test and to calculate the HIV-1 incidence using the BED capture enzyme immunoassay and AxSYM avidity assay index algorithms within a population seeking the Voluntary Counselling and Testing Centres in two municipalities in the Metropolitan R
Braz J Infect Dis. Publicado em: 2014-08
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27. Estabilidade dos anticorpos anti-HIV em amostras de soro armazenadas por períodos de dois a dezoito anos
Introdução: Os anticorpos possuem papel fundamental no sorodiagnóstico e constituem os mais difundidos biomarcadores empregados na detecção e na confirmação de diversas doenças. Objetivo: Verificar a reprodutibilidade dos resultados de anticorpos contra o vírus da imunodeficiência humana (HIV) para avaliar a estabilidade dos soros armazenados a
J. Bras. Patol. Med. Lab.. Publicado em: 2014-08
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28. Estudo de homogeneidade dos soros utilizados em controle de qualidade interno de testes imunodiagnósticos de HIV/Aids
Introdução: No presente estudo estão descritos os resultados das primeiras análises feitas sobre a avaliação da homogeneidade das amostras componentes de painéis de soros produzidos no Centro de Imunologia do Instituto Adolfo Lutz e distribuídos aos laboratórios públicos e conveniados ao Sistema Único de Saúde e participantes do Programa de Con
J. Bras. Patol. Med. Lab.. Publicado em: 2014-02
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29. Estabilidade dos soros para o controle de qualidade interno de testes imunodiagnósticos de HIV/AIDS
Introdução: A utilização de materiais de referência para assegurar e desempenhar o papel de controle de qualidade das medições analíticas é requisito em laboratórios clínicos. Objetivo: O presente estudo avaliou a estabilidade das amostras de soro, armazenadas a -20°C por um longo período de tempo e durante curto prazo em diferentes temper
J. Bras. Patol. Med. Lab.. Publicado em: 2014-02
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30. Stress-related hormone norepinephrine induces interleukin-6 expression in GES-1 cells
In the current literature, there is evidence that psychological factors can affect the incidence and progression of some cancers. Interleukin 6 (IL-6) is known to be elevated in individuals experiencing chronic stress and is also involved in oncogenesis and cancer progression. However, the precise mechanism of IL-6 induction by the stress-related hormone nor
Braz J Med Biol Res. Publicado em: 2014-02
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31. Keratinocyte growth factor, interleukins (1 beta, 6, 8, 10, 12), and tumor necrosis factor alpha in culture medium of dermal fibroblast of burned patients
PURPOSE: To evaluate the level of cytokines and keratinocyte growth factor (KGF) or Fibroblast Growth Factor 7 (FGF-7) in the culture medium of cultured human dermal fibroblasts from patients with large burn in comparison to small burn. METHODS: Fibroblasts of 10 patients (four large burns, four small burns and two controls) were initiated by the enzymatic
Acta Cir. Bras.. Publicado em: 2014
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32. One window-period donation in two years of individual donor-nucleic acid test screening for hepatitis B, hepatitis C and human immunodeficiency virus
Objective: To describe general data on nucleic acid/serology testing and report the first hepatitis B-nucleic acid testing yield case of an immunized donor in Brazil. Methods: A total of 24,441 donations collected in 2010 and 2011 were submitted to
Rev. Bras. Hematol. Hemoter.. Publicado em: 2013-06
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33. Immunologic evaluation and validation of methods using synthetic peptides derived from Mycobacterium tuberculosis for the diagnosis of tuberculosis infection
The goal of this study was to demonstrate the usefulness of an enzyme-linked immunosorbent assay (ELISA) for the serodiagnosis of pulmonary tuberculosis (PTB) and extrapulmonary TB (EPTB). This assay used 20 amino acid-long, non-overlapped synthetic peptides that spanned the complete Mycobacterium tuberculosis ESAT-6 and Ag85A sequences. The validation cohor
Mem. Inst. Oswaldo Cruz. Publicado em: 2013-04
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34. Analytical validation of anti-toxoplasma IgG immunoassays
There are often discrepancies when using different methods to measure anti-Toxoplasma gondii IgG levels in patient samples. The diagnostic performance of a chemiluminescent immunoassay (CLIA) and an enzyme-linked fluorescent assay (ELFA) used as confirmatory tests for samples identified as positive or equivocal by an electrochemiluminescent immunoassay (ECLI
Braz J Infect Dis. Publicado em: 2012-12
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35. In vitro culture and characterization of alveolar bone osteoblasts isolated from type 2 diabetics
In order to understand the mechanisms of poor osseointegration following dental implants in type 2 diabetics, it is important to study the biological properties of alveolar bone osteoblasts isolated from these patients. We collected alveolar bone chips under aseptic conditions and cultured them in vitro using the tissue explants adherent method. The biologic
Brazilian Journal of Medical and Biological Research. Publicado em: 2012-06
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36. Recent HIV infection rates among HIV positive patients seeking voluntary counseling and testing centers in the metropolitan region of Recife - Pe, Brazil
The BED capture enzyme immunoassay test makes it possible to determine whether individuals were recently infected with HIV. OBJECTIVE: In this study, the overall HIV and recent infections prevalences were determined at five Voluntary Counseling and Testing (VCT) centers, in the Metropolitan Region of Recife, Northeastern of Brazil. MATERIAL AND METHODS: A cr
Brazilian Journal of Infectious Diseases. Publicado em: 2012-04