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| Vasconcellos,Maurício Carvalho; Santos,José Augusto Albuquerque dos; Silva,Ivonise Paz da; Lopes,Fátima Eliana Ferreira; Schall,Virgínia Torres. |
| Laboratory and field bioassays have confirmed the specificity of the molluscicidal activity of the Euphorbia splendens var. hislopii latex (crown of Christ) (Euphorbiaceae) over snails of the species Biomphalaria glabrata, B. tenagophila, B. straminea, B. pfeifferi and Bulinus sp. in the control of Schistosoma mansoni. In the present study, the effect of the pH variation on lethal concentration (LC90) over B. tenagophila was evaluated. Bioassays with the aqueous solutions of the latex ranging from 0.4 to 12 µl/l were adjusted for pH of 5.0; 6.0; 7.0 and 8.0, and tested in accordance with methods standardized by World Health Organization. The results obtained indicated that the minor concentration of the latex occurred at pH 6.0 (LC90 = 3.2 µl/l) and the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Euphorbia splendens var. hislopii; Molluscicidal activity; PH variation; Biomphalaria sp.; Bulinus sp.. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132003000300013 |
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| Truiti,M.C.T.; Ferreira,I.C.P.; Zamuner,M.L.M.; Nakamura,C.V.; Sarragiotto,M.H.; Souza,M.C.. |
| Leishmaniasis, Chagas' disease and schistosomiasis (bilharzia) are parasitic diseases with wide distribution on the American continent, affecting millions of people. In the present study, biological assays for antiprotozoal and molluscicidal activities were carried out with ethanolic extracts of plant species from the Brazilian part of the Upper Paraná River. Crude extracts were obtained by percolation with absolute ethanol from the leaves of Cayaponia podantha Cogn., Nectandra falcifolia (Nees) Castiglioni and Paullinia elegans Cambess., as well as from the aerial parts of Helicteres gardneriana St. Hil. & Naud. and Melochia arenosa Benth., all belonging to genera used in folk medicine. Trypanocidal activity of plants was assayed on epimastigote... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cayaponia podantha; Helicteres gardneriana; Melochia arenosa; Nectandra falcifolia; Paullinia elegans; Antiprotozoal activity; Molluscicidal activity. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2005001200016 |
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