Substance And Body
Mostrando 25-36 de 83 artigos, teses e dissertações.
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25. AvaliaÃÃes dosimÃtricas em pacientes submetidos à radioiodoterapia com base em fantomas de Voxels e em imagens de medicina nuclear
In radioiodine therapy, the patients are submitted to the incorporation of a radioactive Sodium Iodide substance (NaI), which reacts physiologically with metastases, thyroid tissue remainders and other organs and tissues of the human body. There is a complex question, which is, the evaluation of the temporal and spatial distribution of the absorbed dose in r
Publicado em: 2007
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26. Etanol, deficiência de ácido fólico e associação desses dois fatores durante a gestação de camundongos swiss / Etanol, Deficiency of Acid Fólico and Association Of these Two Factors During the Gestation of Swiss Mice
In spite of the well known teratogenic effect of ethanol, it is still the most consumed exogenous abuse substance by women of reproductive age. Ethanol also impairs the absorption, transport and metabolism of folic acid. The aim of this study was to investigate the effects of ethanol, dietary deficiency of folic acid and the association of both on the outcom
Publicado em: 2007
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27. In vivo antithrombotic properties of a heparin from the oocyte test cells of the sea squirt Styela plicata(Chordata-Tunicata)
In the ascidian Styela plicata, the oocytes are surrounded by two types of accessory cells named follicle cells and test cells. A heparin-like substance with an anticoagulant activity equivalent to 10% of mammalian heparin and about 5% as potent as the mammalian counterpart for the inhibition of thrombin by antithrombin was isolated from the oocyte test cell
Brazilian Journal of Medical and Biological Research. Publicado em: 25/09/2006
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28. Estudos ecotoxicológicos com Hydra viridissima (Cnidaria: Hydrozoa) / Ecotoxicology studies with Hydra viridissima (Cnidaria: Hydrozoa)
Hydras are the main freshwater representatives of phylum Cnidaria, and when exposed to toxic substances they can display gradual changes in the body structure, whose expression allows determining the lethal and sub-lethal doses of a toxic substance. In the present study, the native species Hydra viridissima was cultured in the laboratory in order to determin
Publicado em: 2006
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29. Efeito do ciclamato de sódio sobre o pâncreas exócrino fetal de ratos: estudo cariométrico e esterelógico.
Cyclamate, a sweetening substance derived from N-cyclo-hexyl-sulfamic acid, is largely used as a non-caloric artificial edulcorant in foods and beverages as well as in the pharmaceutical industry. This study aims at evaluating different karyometric and stereological quantitative parameters in the exocrine pancreas of rat fetuses . In five pregnant rats, a do
Publicado em: 2006
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30. Genotoxic and antigenotoxic effects of organic extracts of mushroom Agaricus blazei Murrill on V79 cells
Agaricus blazei Murrill, popularly known as the sun mushroom, is a native mushroom in SP, Brazil, that has been widely used in the treatment of cancer and many other pathologies in different parts of the world. A water-soluble protein-polysaccharide complex (1 -> 6)beta-D-glucan has been isolated from its fruiting body that showed immune-modulation activity.
Genetics and Molecular Biology. Publicado em: 2005-09
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31. Comorbidade entre dependência de substâncias psicoativas e transtornos alimentares: perfil e evolução de mulheres em um tratamento específico para dependência química / Comorbidity between psychoactive substance dependence and eating disorders: profile and outcome of women in a specific treatment for chemical dependence
The association between eating disorders and psychoactive substance dependence has often been described in both chemical dependence and eating disorders treatment programs. As studies show great result variability it has been suggested that substance dependent individuals would have frequently associated partial or subclinical eating syndromes. There is virt
Publicado em: 2005
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32. Estudo fitoquímico da fração n-butanólica de Lippia Alba (Mill.) N. E. Br.
Lippia alba is a medicinal plant wich is find in all regions of Brazil. This especie is largely used in the folk medicine, especially as a tranquilizer. It needs cientific studies about isolation and identification of its constituents. In previous studies, the n-butanolic fraction, obtained from a hidroalcoolic extract showed sedative and anticonvulsant effe
Publicado em: 2005
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33. Importância da região AV3V para as respostas pressoras produzidas pela ativação de áreas bulbares.
Cardiovascular responses are integrated at different levels of the central nervous system (CNS). Particularly the hypothalamus and brainstem areas are involved in the control of autonomic responses and among them the cardiovascular responses. Different areas in the brainstem, like the nucleus tract solitarii (NTS), the rostroventrolateral medulla (RVLM), cau
Publicado em: 2005
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34. Estudo histolÃgico e morfomÃtrico do disco epifisÃrio de ratos neonatos tratados com fluoxetina
The selective inhibitors of the re-uptake of the serotonin acts increasing the availability of this neurotransmitter in the synaptic cleft. Recent studies demonstrated the presence of receptors of serotonin in bone cells, suggesting the participation of this substance in the bone metabolism. The aim of this study is to verify the effects of the use of fluoxe
Publicado em: 2004
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35. Valores de referência de acetona urinária em uma população do sul de Minas Gerais / Reference values for urinary acetone in a population of south of Minas Gerais state
The determination of reference values of some xenobiotics is important for the biomonitoring, to compare the concentration in the exposed and the general population. The acetone is a very popular solvent, that is used in a large number of industries and laboratories. Isopropanol is used in industries, laboratories and cosmetic products. In the human body, th
Publicado em: 2002
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36. Avaliação dos métodos analíticos para a determinação de metabólitos do benzeno como potenciais biomarcadores de exposição humana ao benzeno no ar
Increasing attention is being paid to the use of biomarkers for determining the exposure of humans to air toxics. Biomarkers include the nonreacted toxic substance, their metabolites, or the reaction products of these toxics with naturally substances in the body. Significant progress has been made in the measurement of biomarkers during the past several year
Química Nova. Publicado em: 2000-10