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

Submitted by Alexandre Sousa ([email protected]) on 2016-03-09T17:33:35Z No. of bitstreams: 1 Zbl_Bakt_283_340-346.pdf: 523483 bytes, checksum: f4ddcb5a8cd89135596a043c2956ba52 (MD5)Approved for entry into archive by Alexandre Sousa ([email protected]) on 2016-03-09T18:15:26Z (GMT) No. of bitstreams: 1 Zbl_Bakt_283_340-346.pdf: 523483 bytes, checksum: f4ddcb5a8cd89135596a043c2956ba52 (MD5)Made available in DSpace on 2016-03-09T18:15:26Z (GMT). No. of bitstreams: 1 Zbl_Bakt_283_340-346.pdf: 523483 bytes, checksum: f4ddcb5a8cd89135596a043c2956ba52 (MD5) 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