title: Activity of east African medicinal plants against Helicobacter pylori.
abstract: The activity of extracts from the East African medicinal plants Entada abyssinica (stem bark), Terminalia spinosa (young branches), Harrisonia abyssinica (roots), Ximenia caffra (roots), Azadirachta indica (leaves and stem bark) and Spilanthes mauritiana (roots and flowers) were evaluated against 12 strains of Helicobacter pylori. The most active extracts were those derived from T. spinosa with an MIC50 of 125 micrograms/ml, an MIC90 of 250 micrograms/ml and an MIC range of 62.5-500 micrograms/ml. An MIC50 of 250 micrograms/ml and an MIC90 of > 4,000 micrograms/ml was reached by H. abyssinica with a range of 125-->4,000 micrograms/ml and by X. caffra with a range of 62.5-->4,000 micrograms/ml, respectively. It is concluded that these plants contain compounds with antimicrobial activity against H. pylori.
authors.affiliation: Institute of Medical Microbiology, University of Essen, Germany.
authors.forename: W
authors.initials: W
authors.lastname: Fabry
authors.forename: P
authors.initials: P
authors.lastname: Okemo
authors.forename: R
authors.initials: R
authors.lastname: Ansorg
mesh_terms: D000351:Africa, Eastern; D016480:Helicobacter pylori / Q000187:drug effects*; D008826:Microbial Sensitivity Tests; D010936:Plant Extracts / Q000494:pharmacology; D010946:Plants, Medicinal
chemical_list: D010936:Plant Extracts