6533b835fe1ef96bd129f5a8
RESEARCH PRODUCT
Zanhasaponins A and B, Antiphospholipase A2 Saponins from an Antiinflammatory Extract of Zanha africana Root Bark
María-carmen RecioJosé-luis RíosSalvador MáñezMaria Jose JustM. J. CuéllarRosa-maría GinerK. HostettmannM. Cerdásubject
Anti-Inflammatory AgentsSaponinPharmaceutical SciencePharmacognosyDermatitis ContactPhospholipases AAnalytical ChemistryMicechemistry.chemical_compoundPhospholipase A2Adjuvants ImmunologicTriterpeneDrug DiscoveryAnimalsEdemaEnzyme InhibitorsPeroxidaseSkinPharmacologychemistry.chemical_classificationintegumentary systembiologyTraditional medicineOrganic ChemistryOxazoloneGlycosideSaponinsTriterpenesTerpenoidPhospholipases A2Complementary and alternative medicinechemistryBiochemistryvisual_artvisual_art.visual_art_mediumbiology.proteinTetradecanoylphorbol AcetateMolecular MedicineFemaleBarkArachidonic aciddescription
A MeOH extract from Z. africana was examined for topical antiinflammatory activity and proved to be active against arachidonic acid (AA) acute edema, 12-O-tetradecanoylphorbol 13-acetate (TPA)-induced chronic inflammation, and oxazolone delayed-type hypersensitivity in mice. The extract also showed significant inhibitory activity of Naja naja phospholipase A2 when a polarographic method was used. Two oleanane-type triterpene saponins, zanhasaponins A (1) and B (2), and the cyclitol pinitol (4), isolated from the extract, were active as inhibitors of PLA2. A further saponin, zanhasaponin C (3) was inactive in this assay.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1997-12-11 | Journal of Natural Products |