Antinociceptive and anti-inflammatory kaempferol glycosides from Sedum dendroideum.
JOURNAL OF ETHNOPHARMACOLOGY 2009;
124:228-232. [PMID:
19397977 DOI:
10.1016/j.jep.2009.04.024]
[Citation(s) in RCA: 58] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2008] [Revised: 04/11/2009] [Accepted: 04/19/2009] [Indexed: 05/27/2023]
Abstract
AIM OF THE STUDY
To identify the compounds responsible for the antinociceptive and anti-inflammatory effects previously described for Sedum dendroideum, through bioassay-guided fractionation procedures.
MATERIALS AND METHODS
Antinociceptive activity was evaluated through mouse acetic acid-induced writhing model. The anti-inflammatory activity was assessed through croton oil-induced mouse ear oedema and carrageenan-induced peritonitis.
RESULTS
The Sedum dendroideum juice afforded seven known flavonoids identified with basis on NMR data. The oral administration of the major kaempferol glycosides kaempferitrin [1] (17.29 micromol/kg), kaempferol 3-O-beta-glucopyranoside-7-O-alpha-rhamnopyranoside [2] (16.82 micromol/kg), kaempferol 3-O-neohesperidoside-7-O-alpha-rhamnopyranoside [3] (13.50 micromol/kg) or alpha-rhamnoisorobin [5] (23.13 micromol/kg) inhibited by 47.3%, 25.7%, 60.2% and 58.0%, respectively, the acetic acid-induced nociception (indomethacin: 27.95 micromol/kg, p.o.; 68.9%). Flavonoids 1, 2, 3 or 5, at the same doses, reduced by 39.5%, 46.5%, 35.6% and 33.3%, respectively, the croton oil-induced oedema (dexamethasone: 5.09 micromol/kg, s.c.; 83.7%) and impaired leukocyte migration by 42.9%, 46.3%, 50.4% and 49.6%, respectively (dexamethasone: 5.09 micromol/kg, s.c.; 66.1%).
CONCLUSIONS
Our findings show that the major kaempferol glycosides may account for the renowned medicinal use of Sedum dendroideum against pain and inflammatory troubles.
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