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Journal of Medicinal Food 2009-Oct

Anti-inflammatory and analgesic activities of Chaenomeles speciosa fractions in laboratory animals.

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Linkki tallennetaan leikepöydälle
X Li
Y-B Yang
Q Yang
L-N Sun
W-S Chen

Avainsanat

Abstrakti

The prescription of current existing anti-inflammatory drugs is hampered by their adverse effects over time. Botanical extracts are thought to be a potential source of a natural anti-inflammatory property with fewer adverse effects. Chaenomeles speciosa has long been used as an herbal medicine for treatment of various diseases such as rheumatoid arthritis, prosopalgia, and hepatitis. Until now there have been no reports on the specific anti-inflammatory fractions of extract of C. speciosa (ECS). In the present study the anti-inflammatory activities of different fractions of ECS were evaluated using carrageenan-induced paw edema in rats. The 10% ethanol fraction (C3) was found to have stronger anti-inflammatory effects compared with other fractions at the same dose. We also found that chlorogenic acid was one of the active constituents responsible for the anti-inflammatory effect using bioassay-guided fractionation by means of high-performance liquid chromatography. Compared with controls, fraction C3 demonstrated significant anti-inflammatory activity in the xylene-induced ear edema test (P < .01), acetic acid-induced peritoneal capillary permeability test, and the cotton pellet granuloma test in mice or rats (P < .01); it also showed marked analgesic activity in the acetic acid-induced abdominal contraction test and formalin-induced paw licking test in mice and rats (P < .05 or .01). However, fraction C3 showed no significant effect in the hot plate test in mice. These findings justify the use of the C. speciosa for treating pain and inflammation. These results support the proposal of C. speciosa fraction C3 as a potential anti-inflammatory agent.

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