962 resultados para Bioquímica
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Pós-graduação em Biotecnologia - IQ
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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Cryptococcosis is an opportunistic fungal infection caused by Cryptococcus yeasts, especially C. neoformans and Cryptococcus gattii. The fungus is found in substrates of animal and vegetable origin, and infection occurs through inhalation and seedlings present in the environment. The present study aimed to investigate the existence of microfocus Cryptococcus sp. from the environmental samples of Araçatuba city, São Paulo, featuring new niches, by decoupling the direct relationship between fungus and host in order to minimize the risk of contamination of man and animals, understanding the ecoepidemiology of Cryptococcus. Fifty samples from hollows and tree trunks were harvested (Cassia sp., Ficus sp., Caesalpinea peltophorides) from ten representatives in the urban perimeter. The samples were immediately sent to the Laboratory of Bacteriology and Mycology, Faculty of Veterinary Medicine Araçatuba - Unesp where they were processed and plated on Petri dishes containing agar seed Niger and Sabouraud dextrose agar with chloramphenicol, incubated at 30ºC for a period of no less than 5 days. Afterwards they were subimitted to biochemical tests: urease production, thermotolerance at 37°C and quimiotipagem in CGB agar (L- Canavanine-Glycine-Bromothymol blue). The results showed that 17 (34%) cultures were positive for Cryptococcus, 9 (18%) for Cryptococcus gattii and 8 (16%) for Cryptococcus neoformans. Other yeast correlated as Rhodotorula sp. and Candida sp. were isolated. We conclude that the infectious propagules of Cryptococcus are dispersed in nature and constitute an environmental microfocus, not necessarily being bound to a single host.
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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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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Pós-graduação em Agronomia (Produção Vegetal) - FCAV
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[EN] This seminar will report the latest activities of the ULPGC»s Plankton Ecophysiology group (PEG). This group studies respiration, growth, nitrogen metabolism, oceanic carbon flux, deep ocean metabolism, and plankton cultivation. It works with zooplankton, phytoplankton, bacteria, and macroalgae. The premise behind the group»s investigations is that enzyme biochemistry controls an organism»s physiology that, in turn, has a strong impact on ocean chemistry and ecology. This research team (PEG) uses as foils, the metabolic theory of ecology (MTE) and Kleiber»s law to argue the fact that respiratory metabolism is controlled not by biomass, but by the respiratory electron transport system (R-ETS). It has pointed out that the reason, zooplankton respiration statistically correlates with biomass, is because biomass packages mitochondria and mitochondria package the R-ETS. It has demonstrated, experimentally with Artemia salina, the superiority of using ETS as a respiration proxy rather than using biomass. Working with bacteria it has shown the inadequacy of the MTE in describing respiration in different growth phases of bacteria and has shown that a rival model based on enzyme kinetics works much better.
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Fil: F. R. M..
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Se presenta una experiencia realizada en el curso de Bioquímica Estomatológica II correspondiente al Segundo Año del Plan de Estudios de la Facultad de Odontología. Se plantea como objetivo el diseño de una propuesta de enseñanza--aprendizaje que resignifique el rol del docente y de los estudiantes, y ponga en juego estrategias que garanticen la verdadera comprensión de conceptos, la adquisición de habilidades cognitivas, el desarrollo de capacidades y actitudes propias del quehacer científico
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Se presenta una experiencia realizada en el curso de Bioquímica Estomatológica II correspondiente al Segundo Año del Plan de Estudios de la Facultad de Odontología. Se plantea como objetivo el diseño de una propuesta de enseñanza--aprendizaje que resignifique el rol del docente y de los estudiantes, y ponga en juego estrategias que garanticen la verdadera comprensión de conceptos, la adquisición de habilidades cognitivas, el desarrollo de capacidades y actitudes propias del quehacer científico