Riboflavin
Mostrando 25-36 de 216 artigos, teses e dissertações.
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25. Seleção de leveduras potencialmente produtoras de vitaminas do complexo B e estudo do processo fermentativo visando aplicação em alimentação animal / Screening of potential B-vitamin producer yeasts and the study of fermentation process for feed application
The present work had as the main the objective, the isolation and selection of potential B-vitamin producer yeast and the study of fermentative process for B-vitamin production for feed application. Among 267 isolated strains, one was selected as extracellular thiamine producer and the strain Candida sp. LEB 130 as riboflavin and biotin producer. In the stud
Publicado em: 2009
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26. Flavins promote changes in the extracellular matrix, signal transduction, antioxidant enzymes and metalloproteinases during osteoblast differentiation / Flavinas promovem mudanças na matriz extracelular, vias de transdução de sinal, enzimas antioxidantes e metaloproteinases durante a diferenciação de osteoblastos
Riboflavin (Rb-Vitamin B2) is the precursor of essential flavocoenzymes, flavin mononucleotide (FMN) and flavin adenine dinucleotide (FAD). These coenzymes participate in numerous enzymatic processes dependent on electron transfer reactions that occur in energyproducing, biosynthetic, and detoxifying and electron-scavenging pathways. Increase dietary ribofla
Publicado em: 2009
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27. Swallowing in Parkinsons disease before and after riboflavin: complaint, functional aspects and impact on quality of life. / Deglutição de parkinsonianos pré e pós riboflavina: queixa, aspectos funcionais e impacto na vida diária.
Objective: to verify the relation between clinical complaint, swallowing functional aspects and the impact on quality of life related to voice and swallowing in patients with Parkinsons disease submitted to treatment with riboflavin during one year period. Method: sixteen patients with Parkinsons disease participated in the study; mean age was 67.25 years ol
Publicado em: 2009
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28. Evaluation of riboflavin citotoxicity and phototoxicity : determination of molecular markers in inflammation, senescence and cell death / Avaliação da citotoxicidade e fototoxicidade da riboflavina : determinação de marcadores moleculares de inflamação, senescencia e morte celular
Riboflavin (RF) is a water soluble vitamin which belongs to vitamin B2 complex, an essential precursor of FMN and FAD coenzymes. Besides being a component of coenzymes, RF displays antitumoral and photossensitizing activities. The main proposal of this study was to evaluate the RF phototoxicity, as well as to determine molecular markers of inflammation, sene
Publicado em: 2009
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29. Prevalência de inadequação da ingestão de nutrientes entre adolescentes do município de São Paulo / Prevalence of inadequate nutrient intake among adolescents from São Paulo-Brazil
Introduction: The adolescence stands out as a high demand stage of nutrients. Nonetheless, food practices of this group often have been characterized as having high consumption of saturated fat and poor in nutrient-rich foods. Objective: To estimate the prevalence of inadequate nutrient intake and to calculates the variance components of energy and nutrient
Publicado em: 2009
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30. Mecanismo da ação antineoplasica de substancias bioativas e alvos moleculares estrategicos para a indução de morte de celulas tumorais / Antineoplastic action mechanism of bioactive compounds and strategical molecular targets for inducting tumoral cells death
Natural products have been providing numerous clinically used medicines and remain as essential components in the search for new drugs against various pharmacological targets including cancer, HIV/AIDS, Alzheimer?s, malaria, and pain. Drug discovery from natural products, especially from medicinal plants, has played an important role in the chemoprevention a
Publicado em: 2007
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31. Definição de alvos moleculares em diferenciação, morte e resistencia de celulas tumorais / Defenition of molecular targets indifferentiation, death and resisteance in cancer cells
Cancer therapy efficiency, under several aspects, even with the progress of pharmacotechnology, remains as a challenge for the medicine. According to this factor, new agents that act on specific target, present low side-effects and prevent cancer cells escaping from death induction, are extremely desirable. In this work, 3 aspects of antitumoral prop
Publicado em: 2007
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32. "Aprendizagem implícita e a doença de Parkinson" / Implicit memory and Parkinsons disease
The double dissociation between the long-term memory losses in Parkinsons disease (PD) and amnesic patients strengthens the implicit and explicit memory dissociation. However, although it is widely accepted that patients with PD have specific impairment of implicit memory functions, at least in the initial stages of the disease, the degree of this impairme
Publicado em: 2007
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33. Aplicação de métodos de calibração multivariada para a determinação simultânea de riboflavina (VB2), tiamina (VB1), piridoxina (VB6) e nicotinamida (VPP)
In this work, the artificial neural networks (ANN) and partial least squares (PLS) regression were applied to UV spectral data for quantitative determination of thiamin hydrochloride (VB1), riboflavin phosphate (VB2), pyridoxine hydrochloride (VB6) and nicotinamide (VPP) in pharmaceutical samples. For calibration purposes, commercial samples in 0.2 mol L-1 a
Química Nova. Publicado em: 2007
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34. Simultaneous determination and classification of riboflavin, thiamine, nicotinamide and pyridoxine in pharmaceutical formulations, by UV-visible spectrophotometry and multivariate analysis
Soft Independent Modeling of Class Analogy (SIMCA) e Regressão por Mínimos Quadrados Parciais foram usados nesse trabalho para a identificação e quantificação de tiamina, riboflavina, nicotinamida e piridoxina, por espectrofotometria UV-Vis, sem realizar os procedimentos analíticos de separação e pré-concentração. Para a quantificação, os inter
Journal of the Brazilian Chemical Society. Publicado em: 2006-08
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35. Prevalência de anemia ferropriva em adolescentes da "Vila Princesa" - lixão em Porto Velho - RO
The nutritional anemia results from the simple or combined deficiency of nutrients as iron, folic acid and vitamin B12, although is may caused also for others kind of factors such as pyridoxine, riboflavin and protein deficiency. Although several nutrients and co-factors have been involved in the normal synthesis of the hemoglobin, the iron deficiency is the
Publicado em: 2006
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36. Identificação de um novo Antígeno de Paracoccidioides brasiliensis (Lumazina Sintase) através da Técnica de IVIAT
Paracoccidioides brasiliensis is a thermally dimorphic fungus causing paracoccidioidomycosis (PCM), a mycosis that affects 10 million individuals in Latin America. The infection is acquired by inhaling airborne propagules produced by the fungal mycelium which transforms into the pathogenic yeast form, when at the body temperature. P brasiliensis expresses in
Publicado em: 2006