Search results for "Astragalus species"

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A review of the pharmacology and toxicology ofAstragalus

1997

Some Astragalus species are used as forage for livestock and wild animals. Many species are used in folk medicine for their hepatoprotective, antioxidative, immunostimulant, and antiviral properties, whereas others are toxic, and in many cases the toxic principles can pass to humans through milk and meat. Three groups of chemicals have been described as pharmacologically active principles: polysaccharides, saponins and phenolics. In addition, three kinds of toxic principles have been reported: indolizidine alkaloids, aliphatic nitro compounds and selenium. © 1997 John Wiley & Sons, Ltd.

PharmacologyFolk medicinechemistry.chemical_classificationAstragalus speciesAlkaloidSaponinfood and beveragesIndolizidineBiological activityBiologyPharmacognosybiology.organism_classificationToxicologychemistry.chemical_compoundAstragaluschemistryPhytotherapy Research
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Cycloartane Glycosides from Three Species of Astragalus (Fabaceae)

2011

Nine cycloartane-type glycosides were isolated from three species of the genus Astragalus (Fabaceae): From the aerial parts of A. cicer L., two new saponins, cicerosides A and B (1 and 2, resp.), i.e., a tetradesmosidic and tridesmosidic cycloartane-type glycosides besides one known compound, from the roots of A. sempervirensLam., one known saponin, and from the roots of A. ptilodesBoiss. var. cariensisBoiss., five known compounds. Their structures were established mainly by 600-MHz 2D-NMR techniques (1H,1H-COSY, TOCSY, NOESY, HSQC, and HMBC) and mass spectroscopy.

chemistry.chemical_classificationbiologyAstragalus speciesOrganic ChemistrySaponinGlycosideFabaceaebiology.organism_classificationBiochemistryCatalysisInorganic ChemistryAstragaluschemistryGenusDrug DiscoveryBotanyPhysical and Theoretical ChemistryTwo-dimensional nuclear magnetic resonance spectroscopyHelvetica Chimica Acta
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