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Multiple screening of medicinal plants from Oaxaca, Mexico: ethnobotany and bioassays as a basis for phytochemical investigation

By B Frei, M Heinrich, PM M Bork, D Herrmann, B Jaki, T Kato, M Kuhnt, J Schmitt, W Schühly, C Volken and O Sticher


Based on ethnobotanical data collected among Zapotec Indians in Mexico, nine species traditionally applied to treat skin diseases and two species used to treat gastrointestinal disorders were subjected to several bioassays as further selection criteria for phytochemical investigation. Ten were active against at least one of the pathogenic and/or non-pathogenic bacteria and one against a non-pathogenic fungus in bioautographic TLC and agar diffusion tests. Cytotoxic/antitumor potential was found for one plant species with cell lines (KB, Caco-2) and for six with the brine shrimp assay. In the NF-�šB- and the HET-CAM-test used to test for anti-inflammatory potential, two respectively one plant extract showed noteworthy activity. Furthermore, a potentially immunomodulating activity was investigated by evaluating the influence of extracts in various in vitro assays using murine and human lymphoid cells. In addition to the reported biological activities of the eleven plant species, comparisons of the ethnobotanical data and strategies for the selection for further phytochemical investigations are discussed

Topics: Zapotec Indians (Mexico), ethnobotany, medicinal plants, traditional medicine, antimicrobial, KB, Caco-2, brine shrimp, NF-κB, HET-CAM, immunomodulation, dermatological problems, gastrointestinal illnesses, Plant Sciences
Publisher: ePublications@SCU
Year: 1998
DOI identifier: 10.1016/S0944-7113(98)80025-1
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Provided by: ePublications@SCU
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