Abstract
BackgroundAnethole and estragole are monoterpene position isomers and constituents of essential oils from aromatic plants and were used in this study with the aim of analyzing their anti-inflammatory activity. MethodsThe anti-edematogenic effects of anethole and estragole were evaluated through plethysmometry in Swiss mice. ResultsAnethole inhibited carrageenan-induced edema at doses of 3, 10 and 30mg/kg from 60 to 240min after induction. However, the inhibitory effects of estragole were observed only from 60 to 120min at the two highest doses. Anethole and estragole similarly inhibited edema elicited by substance P, bradykinin, histamine and TNF-α but were different in the inhibition of serotonin-elicited edema. In addition, only estragole inhibited sodium nitroprusside-induced edema. ConclusionsAnethole and estragole showed different profiles in the anti-inflammatory response to substance P, bradykinin, histamine, serotonin and TNF-α. NO is involved only in the inhibition mechanism of estragole.
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