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        Anti-inflammatory and analgesic activities of the hydrolyzed sasanquasaponins from the defatted seeds of Camellia oleifera

        Yong Ye,Haiting Xing,Xuelan Chen 대한약학회 2013 Archives of Pharmacal Research Vol.36 No.8

        The defatted seeds of Camellia oleifera (Abel.)are used for stopping itching and pain in old days, theeffective compounds need to be investigated. Sasanquasaponinas a rich fraction was extracted with 70 % ethanol,purified by AB-8 macro-reticular resin, crystallized in 80 %ethanol, and further hydrolyzed by 4 % hydroxyl potassiumor 2 M hydrochloride. Anti-inflammatory activities of theextracts were measured by carrageenan-induced paw edemain rats and croton oil induced ear inflammation in mice; theanalgesic activities were analyzed by hot plate test, aceticacid induced writhing in mice; the levels of pain mediatorsof IL-1b, TNF-a and PGE2 were determined; the antioxidativeactivities in vivo were evaluated by MDA, SOD andGSH-Px in serum of rats. The extracts showed significant(p\0.01) anti-inflammatory and analgesic activities,remarkably (p\0.01) inhibited production of pro-inflammatorycytokines and PGE2, decreased MDA and increasedSOD and GSH-Px in serum. Inhibition of IL-1b, TNF-a andPGE2 may contribute to their anti-inflammatory and analgesiceffects; elimination of free radicals is also involved. The sapogenin and acid hydrolyzed product have betteranti-inflammatory, analgesic effects, and stronger antioxidativeactivity than sasanquasaponin and alkaline hydrolyzedproduct, and they are better candidate medicines forinflammation and pain.

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