In vitro: |
J Nat Prod. 1993 Jun;56(6):929-34. | Antiplatelet effects and vasorelaxing action of some constituents of Formosan plants.[Pubmed: 8350094] | METHODS AND RESULTS: Various xanthones as well as quercetin have been shown to exhibit antiplatelet activity. A series of anthraquinones analogues structurally related to xanthones and a series of quercetin-related compounds were tested for their antiplatelet effects.
CONCLUSIONS:
Emodin, frangulin B, Kaempferol tetraacetate, quercetin-3-O-galactoside octaacetate, rhamnazin triacetate, and rhamnetin tetraacetate were found to be potent antiplatelet agents, and 1,8-dihydroxy-6-methoxy-3-methylanthraquinone 8-O-rhamnosyl-(1-->2)-glucoside, rhamnustrioside undecaacetate, rutin decaacetate, and quercetin-3-O-(6-O-alpha-L-arabinopyranosyl)-beta-D-galactopyranos ide decaacetate showed significant antiplatelet effects. Quercetin showed vasorelaxing action in rat thoracic aorta. | Planta Med. 2008 Feb;74(2):171-4. | Cytotoxic activities of flavonoid glycoside acetates from Consolida oliveriana.[Pubmed: 18214815] | METHODS AND RESULTS: The flavonoids kaempferol, quercetin, trifolin, hyperoside 2''- and 6''- acetates, 7-glucotrifolin, biorobin and robinin were isolated from the aerial parts of Consolida oliveriana.
CONCLUSIONS:
Their derivatives Kaempferol tetraacetate, quercetin pentaacetate, trifolin heptaacetate and hyperoside octaacetate exhibited significant cytotoxicity IN VITRO against three human cell lines HL-60, U937 and SK-MEL-1 while hyperoside 2''-acetate, hyperoside-6''-acetate, glucotrifolin decaacetate and heptamethyltrifolin were inactive. |
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