Journal
JOURNAL OF ETHNOPHARMACOLOGY
Volume 122, Issue 3, Pages 523-532Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/j.jep.2009.01.022
Keywords
Brazilian medicinal plants; Wound healing; NF-kappa B; p38a MAPK; TNF-alpha
Categories
Funding
- Land Baden-Wurttemberg
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Aim of the study: n-Hexanic and ethanolic extracts from twelve plants (Brugmansia suaveolens Brecht. et Presl., Eupatorium laevigatum Lam., Galinsoga parviflora Cav., Iresine herbstii Hook., Kalanchoe tubiflora Hamet-Ahti, Petiveria alliacea L, Pluchea sagittalis (Lam.) Cabrera, Piper regnellii DC., Schinus molle L., Sedum dendroideum Moc et Sesse ex DC., Waltheria douradinha St. Hill., Xanthium cavanillesii Schouw.) used in traditional South Brazilian medicine as wound healing agents were investigated in various biological assays, targeting different aspects in this complex process. Materials and methods:The extracts were investigated on NF-kappa B DNA binding, p38 alpha MAPK,TNF-alpha release, direct elastase inhibition and its release as well as on caspase-3. Fibroblasts migration to and proliferation into the wounded monolayers were evaluated in the scratch assay, the agar diffusion test for antibacterial and the MTT assay for cytotoxic effects. Results: The hydrophilic extracts from Galinsoga parviflora, Petiveria alliacea, Schinus molle, Waltheria douradinha and Xanthium cavanillesii as well as the lipophilic extract of Waltheria douradinha turned out to be the most active ones. Conclusions: These results increase our knowledge on the wound healing effects of the investigated medicinal plants. Further studies are necessary to find out the effective secondary metabolites responsible for the observed effects. (C) 2009 Elsevier Ireland Ltd. All rights reserved.
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