In vitro and in vivo trypanocidal effect of lipophilic extracts of medicinal plants from Mali and Burkina Faso |
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Authors: | Aderbauer Birgit Clausen Peter-Henning Kershaw Olivia Melzig Matthias F |
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Affiliation: | 1. Department of Pharmacy, Freie Universität Berlin, Königin-Luise-Street, 2+4, D-14195 Berlin, Germany;2. Institute for Parasitology and Tropical Veterinary Medicine, Freie Universität Berlin, Königsweg 67, D-14163 Berlin, Germany;3. Department of Veterinary Pathology, Faculty of Veterinary Medicine, Freie Universität Berlin, Robert-von-Ostertag-Street 15, D-14163 Berlin, Germany |
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Abstract: | AIM OF THE STUDY: To determine the in vitro and in vivo antitrypanosomal activity of extracts of traditionally used plants. MATERIALS AND METHODS: 47 dichloromethane extracts were tested in vitro in the Long-term Viability Assay (LtVA) on Trypanosoma brucei brucei. The most active ones were also tested in vivo using a standardised mouse test. RESULTS: 13 extracts (28%) were active in vitro with MIC-values=100mug/ml, 6 extracts showed MIC-values=50mug/ml. The root extract of Securidaca longepedunculata Fresen. (Polygalaceae) and the leaf extract of Guiera senegalensis J. F. Gmel. (Combretaceae) were able to reduce parasitaemia in mice, experimentally infected with Trypanosoma brucei brucei by 48 and 42% at the dose of 150mg/kg b.w. intraperitoneally, two times daily for 3 days. The extract of Acacia nilotica Delile (Mimosaceae) stem bark showed immunosuppressive effect in vivo. CONCLUSION: The results confirm an effect of the ethnobotanically used plants. Further investigation is needed to optimize the effectiveness of the extracts. |
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Keywords: | Securidaca longepedunculata Trypanosoma brucei brucei Medicinal plants Antitrypanosomal activity Acacia nilotica Immunosuppressive activity |
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