Brain Neoplasms
Mostrando 1-12 de 42 artigos, teses e dissertações.
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1. Clinical stage and histological type of the most common carcinomas diagnosed in young adults in a reference cancer hospital
OBJECTIVES: Cancer in young adults represents a great challenge, both biologically and socially, and understanding the unique characteristics of neoplasms in this age group is important to improving care. We aimed to evaluate the most common carcinomas and their characteristics, such as histological type and clinical stage, in young adults in the largest ca
Clinics. Publicado em: 21/09/2018
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2. BRAIN ABSCESS DUE TO Staphylococcus aureus OF CRYPTOGENIC SOURCE IN AN HIV-1 INFECTED PATIENT IN USE OF ANTIRETROVIRAL THERAPY
The spectrum of neurological complications associated with human immunodeficiency virus type 1 (HIV-1) infection is broad. The most frequent etiologies include primary diseases (caused by HIV itself) or secondary diseases (opportunistic infections or neoplasms). Despite these conditions, HIV-infected patients are susceptible to other infections observed in p
Rev. Inst. Med. trop. S. Paulo. Publicado em: 08/04/2016
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3. Avaliação da estimulação magnética transcraniana navegada no mapeamento anatômico e funcional não invasivo do córtex motor / Evaluation of navigated transcranial magnetic stimulation in anatomical and functional mapping of the motor cortex
Introdução e objetivos: A estimulação magnética transcraniana (EMT) é um método exclusivo para estimulação cerebral não-invasiva. A diferença fundamental entre EMT e as outras técnicas disponíveis de mapeamento por imagem do cérebro é que se estabelece haver uma relação de causa e efeito entre a resposta fisiológica evocada e o estímulo ma
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/05/2012
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4. Orientação da atenção em pacientes portadores de tumor do lobo parietal / Orientation of attention in patients with parietal lobe tumor
Atenção consiste em conjunto de processos que leva à seleção ou priorização no processamento de certas categorias de informação, em detrimento de outras, possibilitando um processamento mais eficiente do que seria possível caso o sistema nervoso processasse os estímulos presentes no ambiente simultaneamente. A atenção participa da maioria das fu
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/04/2012
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5. Manual and semi-automatic quantification of in vivo ¹H-MRS data for the classification of human primary brain tumors
In vivo proton magnetic resonance spectroscopy (¹H-MRS) is a technique capable of assessing biochemical content and pathways in normal and pathological tissue. In the brain, ¹H-MRS complements the information given by magnetic resonance images. The main goal of the present study was to assess the accuracy of ¹H-MRS for the classification of brain tumors i
Brazilian Journal of Medical and Biological Research. Publicado em: 2011-04
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6. Crotalus durissus terrificus venom as a source of antitumoral agents
The basic knowledge on neoplasms is increasing quickly; however, few advances have been achieved in clinical therapy against tumors. For this reason, the development of alternative drugs is relevant in the attempt to improve prognosis and to increase patients' survival. Snake venoms are natural sources of bioactive substances with therapeutic potential. The
Journal of Venomous Animals and Toxins including Tropical Diseases. Publicado em: 2010
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7. Análise de glicosaminoglicanos e proteoglicanos em linhagens tumorais de próstata / Analysis of glycosaminoglycans and proteoglycans in prostate cancer cell lines
Proteoglycans (PG) are cell surface, extracellular matrix and citoplasmatic granule macromolecules, that play an important role in cellcell and cell-matrix interactions. Several studies indicated that significant changes in PG content occur in the tumor stroma of epithelial neoplasms and that these alterations influence tumor growth and invasion. In this stu
Publicado em: 2010
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8. Ressecação de lesões em area motora cortical e subcortical e avaliação quanto ao uso dos metodos auxiliares intraoperatorios / Resection of lesions in the cortical and subcortical motor area and evolution of the intraoperative auxiliary methods
Nos últimos anos, consideráveis avanços tecnológicos, principalmente métodos de localização funcional do córtex cerebral, têm surgido no sentido de melhorar os resultados cirúrgicos no tratamento de lesões em áreas eloqüentes. O objetivo deste estudo é avaliar os resultados pós-operatórios em 74 pacientes submetidos à ressecção de lesões
Publicado em: 2009
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9. Technical description and anatomical assessment of the minipterional craniotomy / Descrição técnica e avaliação anatômica da craniotomia minipterional
INTRODUÇÃO: A craniotomia pterional é uma das técnicas mais utilizadas em neurocirurgia. É uma craniotomia que tem constantemente sido comparada com técnicas alternativas utilizadas para acessar alvos anatômicos similares. Esta craniotomia, contudo, apresenta desvantagens, necessitando de dissecção completa do músculo temporal. Prognósticos estét
Publicado em: 2008
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10. Caracterização da atividade antitumoral das tiossemicarbazonas derivadas de N(4)-Metil-Toluil-2-acetilpiridina e de 2-piridinoformamida e seus complexos metálicos: avaliação do potencial radiofarmaceutico / CHARACTERIZATION OF THE ANTITUMURAL ACTIVITY OF THE THIOSEMICARBAZONES DERIVED FROM N(4)-METHYL-TOLYL-2- ACETYLPYRIDINE AND 2-PIRIDINOFORMAMIDE AND ITS METAL COMPLEX: EVALUATION OF THE RADIOPHARMACEUTICAL POTENTIAL.
Thiosemicarbazones have attracted great pharmacological interest because of their biological properties, such as cytotoxic activity against multiple strains of human tumors. The most studied compounds are pyridine-based because of their resemblance to pyridoxal metabolites that attach to co-enzyme B6-dependant enzymes. This work aimed the characterization of
Publicado em: 2008
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11. Identification and characterization of Crotalus durissus terrificus venom antitumoral effect and evaluation of its potential use for tumours detection / Identificação e caracterização do efeito antitumoral da peçonha de Crotalus durissus terrificus e avaliação do seu potencial uso na detecção de tumores
The neoplasms basic knowledge is increasing quickly, however, few advances have been reached in clinical therapy and diagnosis of tumours. For this reason, the development of alternative drugs is relevant in the attempt to improve prognosis and to increase the patients survival. Snake venoms are natural sources of bioactive substances with therapeutically po
Publicado em: 2007
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12. Analysis of the effect of the paramagnetic contrast in the amplitude and width of the metabolite peaks using multivoxel spectroscopy in patients with intracranial tumors / "Estudo do efeito do contraste paramagnético na amplitude e largura dos picos dos metabólitos na espectroscopia com múltiplos volumes de interesse em pacientes com tumores intracranianos"
In order to evaluate the gadolinium effect on the metabolites choline (CHO), creatine (CRE) and N-acetyl-aspartate (NAA) we performed multivoxel spectroscopy in 25 patients with intracranial tumors before and after the injection of the contrast material. The metabolite ratios CHO/CRE, CHO/NAA and NAA/CRE and the peak width at half height of the metabolites w
Publicado em: 2005