Tumor Biomarker
Mostrando 25-36 de 64 artigos, teses e dissertações.
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25. Leptin and leptin receptor expressions in prostate tumors may predict disease aggressiveness?
PURPOSE: The aim of this study was to evaluate the expression of leptin and its receptor in histological sections of prostate tumors, and their association with prognostic factors. METHODS: A total of 532 surgical specimens from prostate cancer were studied. After histopathological diagnosis, the samples were included in tissue microarrays containing cores
Acta Cir. Bras.. Publicado em: 2014
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26. Superoxide dismutase 2 as a marker to differentiate tuberculous pleural effusions from malignant pleural effusions
OBJECTIVES: Our previous study demonstrated that superoxide dismutase levels were higher in tuberculous pleural effusions than in malignant pleural effusions, but that this difference could not be used to discriminate between the two. The objectiv
Clinics. Publicado em: 2014
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27. Glucocorticoid-induced tumor necrosis factor receptor expression in patients with cervical human papillomavirus infection
Introduction The progression of human papillomavirus (HPV) infection in the anogenital tract has been associated with the involvement of cells with regulatory properties. Evidence has shown that glucocorticoid-induced tumor necrosis factor receptor (GITR) is an important surface molecule for the characterization of these cells and proposes that GITR ligand
Rev. Soc. Bras. Med. Trop.. Publicado em: 2013-06
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28. Identificação e desenvolvimento de biomarcador para câncer de pulmão de não-pequenas células : o potencial prognóstico da cofilina-1
O câncer de pulmão é responsável por aproximadamente 13% do total de casos de neoplasias malignas e por cerca de 1.4 milhões de mortes por ano em todo mundo. Esta neoplasia apresenta-se sob dois principais subtipos: câncer de pulmão de pequenas células (CPPC) e câncer de pulmão de não-pequenas células (CPNPC). Cerca de 85% dos casos de câncer de
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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29. Papel de TGFβ-1 na regulação da expressão de MMPs seus inibidores (TIMPs e Reck) em modelo de carcinoma mamário humano: análise funcional de RECK e sua correlação com dados clínico-patológicos / Role of TGFβ-1 as a common regulator of MMPs and their inhibitors (TIMPs e RECK) in human breast cancer cell model: functional analysis of RECK and its correlation with clinical-pathological
The metastatic disease is the main mortality cause of breast cancer patients. The metastatic process involves a complex cascade of events, including the organized breakdown of the extracellular matrix (ECM) compounds. The degradation of ECM is tightly regulated by the balance between the activities of matrix metalloproteinases (MMPs) and their inhibitors, th
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/10/2011
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30. Tgf-β1 expression as a biomarker of poor prognosis in prostate cancer
OBJECTIVE: To evaluate the correlation between transforming growth factor beta (TGF-β1) expression and prognosis in prostate cancer. PATIENTS AND METHODS: TGF-β1 expression levels were analyzed using the quantitative real-time polymerase chain reaction to amplify RNA that had been isolated from fresh-frozen malignant and benign tissue specimens collected f
Clinics. Publicado em: 2011
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31. Genetic variability of vascular endothelial growth factor and prognosis of head and neck cancer in a Brazilian population
Vascular endothelial growth factor (VEGF) is one of the most potent endothelial cell mitogens and plays a critical role in angiogenesis. Polymorphisms in this gene have been evaluated in patients with several types of cancer. The objectives of this study were to determine if there was an association of the -1154G/A polymorphism of the VEGF gene with head and
Brazilian Journal of Medical and Biological Research. Publicado em: 2010-02
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32. Validação do uso da proteína cofilina como biomarcador preditivo do prognóstico de carcinoma de pulmão de não-pequenas células
Câncer de Pulmão de Não-pequenas células (CPNPC) é o maior problema de saúde pública atualmente no mundo.Encontramos em nossas pesquisas que os níveis de mRNA da CFL-1 (cofilina) podem ser usados como um biomarcador prognóstico em biópsias de tumores de CPNPC. Em nossos estudos, estabelecemos e optimizamos um método simples de imunohistoquímica s
Publicado em: 2010
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33. Novos biomarcadores para o diagnóstico não invasivo do carcinoma oral de células escamosas
CAPÍTULO I: A detecção precoce do carcinoma oral de céulas escamosas (OSCC) é fator importante na diminuição das taxas de mortalidade e o sucesso do tratamento relaciona-se diretamente com seu diagnóstico em fases iniciais. Contudo, infelizmente, a maioria dos carcinomas orais é diagnosticada em fases tardias da doença. No presente trabalho, pela p
Publicado em: 2010
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34. Biossensor condutométrico sem contato em microchip contendo ácido fólico como biorreceptor / Contactless conductometric biosensor in microchip containing folic acid as bioreceptor
Este trabalho descreve o desenvolvimento de um biossensor contendo transdução condutométrica sem contato (C4D, capacitively coupled contactless conductivity detection) e ácido fólico (FA) como biorreceptor em microchip, uma nova alternativa que poderá ser utilizada na determinação do biomarcador tumoral FR-α. Essa espécie exibe interações co
Publicado em: 2010
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35. Prostasin, a potential tumor marker in ovarian cancer: a pilot study
INTRODUCTION: Ovarian cancer is generally diagnosed at advanced stages of the disease; therefore, poor prognoses are typical. The development of tumor markers is thus of utmost importance. Prostasin is a protease that in normal tissues is highly expressed only in the prostate gland and seminal fluid. A previous study showed that prostasin is highly overexpre
Clinics. Publicado em: 2009
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36. Expression of IGF-II, IGF-IR, SF-1 and DAX-1 genes in pediatric and adult adrenocortical tumors / Expressão dos genes IGF-II, IGF-IR, SF-1 e DAX-1 em tumores adrenocorticais de crianças e adultos
Introduction: The molecular pathogenesis of adrenocortical tumors is heterogeneous and incompletely understood. Insulin-like growth factor II (IGF-II) overexpression has been demonstrated in adult adrenocortical carcinomas. IGF-II exerts its mitogenic effects through interaction with IGF-I receptor (IGF-IR). In addition, steroidogenic factor 1 gene (SF-1) an
Publicado em: 2008