5 research outputs found
Molluscicidal Activity of Physalis angulata L. Extracts and Fractions on Biomphalaria tenagophila (d’Orbigny, 1835) under Laboratory Conditions
The main objective of this research is to evaluate the molluscicide
activity of Physalis angulata L. Biomphalaria tenagophila
specimens under laboratory conditions. Extracts and fractions
were supplied by the Laboratório de Química de Produtos
Naturais, Farmanguinhos-Fiocruz. Experiments were performed according
to the methodology described by the World Health Organization for
molluscicide tests using the concentrations from 0.1 to 500 mg/l of the
extracts, fractions and of a pool of physalins modified steroids
present in this species. The results show that ethyl acetate and
acetone extracts from the whole plant, the ethanolic extracts of the
roots and the physalins pool from stems and leaves were active. Only
the whole plant extracts were available in sufficient quantity for the
determination of LD50 and LD90 value
Performance of HTLV-1 screening assays in Brazil
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Previous issue date: 1996Fundação Oswaldo Cruz. Instituto Nacional de Controle de Qualidade em Saúde. Rio de Janeiro, RJ, Brasil.Fundação Oswaldo Cruz. Instituto Nacional de Controle de Qualidade em Saúde. Rio de Janeiro, RJ, Brasil.Fundação Oswaldo Cruz. Instituto Nacional de Controle de Qualidade em Saúde. Rio de Janeiro, RJ, Brasil.Fundação Oswaldo Cruz. Instituto Nacional de Controle de Qualidade em Saúde. Rio de Janeiro, RJ, Brasil.Fundação Oswaldo Cruz. Instituto Nacional de Controle de Qualidade em Saúde. Rio de Janeiro, RJ, Brasil.Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Rio de Janeiro, RJ, Brasil.Robert Koch Institute. Berlin, GEFundação Oswaldo Cruz. Instituto Nacional de Controle de Qualidade em Saúde. Rio de Janeiro, RJ, Brasil