145 resultados para Fumonisina b1
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Pós-graduação em Odontologia Preventiva e Social - FOA
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Mostrou-se que o pré-tratamento com as vitaminas tiamina[B1], piridoxina[B6] e cianocobalamina [B12], isoladas ou administradas conjuntamente, não inibiu o edema de pata produzido pela carragenina em ratos, nem as contorções abdominais produzidas pelo ácido acético em camundongos. Por outro lado, o diclofenaco [25 ou 50mg/kg] ou talidomida [45mg/kg] inibiram o edema de pata em ratos, e a associação das três vitaminas à estas drogas, mas não as vitaminas administradas isoladamente, potencializou os efeitos do diclofenaco [25 ou 50mg/kg] no tempo de quatro horas e a talidomida [45mg/kg], nos tempos de duas, três e quatro horas após a carragenina. As contorções abdominais em camundongos foram inibidas pelas doses de 25 ou 50mg/ kg de diclofenaco. A associação das três vitaminas ou apenas da cianocobalamina, potencializou as duas doses do diclofenaco utilizadas. As contorções abdominais foram inibidas também pela talidomida [45mg/kg] e a associação das três vitaminas, ou cada uma das vitaminas administradas isoladamente, foram capazes de potencializar os efeitos da talidomida. É provável que a diferença no mecanismo de ação destas drogas seja responsável por esta diferença dos efeitos das vitaminas. O presente estudo preconiza o uso de antiinflamatórios, combinados com as vitaminas tiamina[B1], piridoxina[B6] e cianocobalamina [B12], em doenças crônicas, diminuindo assim a dose destas drogas e seus efeitos colaterais. Palavras-chave: Diclofenaco; talidomida; contorção abdominal; piridoxina; cianocobalamina; tiamina.
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Pós-graduação em Ciências Biológicas (Farmacologia) - IBB
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Pós-graduação em Química - IQ
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Pós-graduação em Ciência Florestal - FCA
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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An adequate supply of boron (B) is required for the optimal growth and development of cotton (Gossypium hirsutum L.) plants, but the low phloem mobility of B limits the possibilities of correcting B deficiency. There are indications that different cotton cultivars could have different responses to B deficiency. The differences in responses of cotton cultivars to B regarding photoassimilate production and transport were studied in a greenhouse experiment with nutrient solution. Treatments consisted of three cotton cultivars (FMT 701, DP 604BG and FMX 993) and five concentrations of B (0.0, 2.5, 5.0, 10.0 and 20.0 mu mol L-1). Sampling began at the phenological stage B1 (first square) and continued for four weeks. The leaf area and the number of reproductive branches and structures decreased due to B deficiency. A higher level of abortion of reproductive structures was observed under B deficiency. Boron deficiency increased the internal CO2 concentration but decreased the transpiration rate, stomatal conductance and photosynthesis. Despite the decrease in photosynthesis, nonstructural carbohydrates accumulated in the leaves due to decreased export to bolls in B-deficient plants. The response to B deficiency is similar among cotton cultivars, which shows that the variability for this trait is low even for cultivars with different genetic backgrounds.
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Information Science (IS) research has strongly grown in Brazil, in the last decade, and, as a consequence, it was possible to observe a growth of the support given by the Brazilian National Scientific and Technological Development Council - CNPq. In this sense, this paper aims to analyze the scientific production (journal papers) of the 15 IS researchers who have the highest level research fellowships during the period between 2001 and 2010. Data were analyzed in terms of bibliographic dispersion, internationalization, and scientific collaboration as well as in terms of the most prominent journals. The results (219 papers) evidence an average of around 1.5 papers per author per year and a group of 63 different journals (60% evaluated under levels Qualis A1 and B1). The journal DataGramaZero is strongly present since it responds for 22% of the whole production. It was possible to observe a still shy presence of foreign journals and none of them belong to the Anglo-Saxon environment. The kind of authorship is well-balanced between individual and collective ones, including inter-institutional collaboration. It is possible to conclude that this group is mature and very productive, and it represents an academical IS leadership in Brazil but still lacks more international visibility.
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Pós-graduação em Química - IQ