The aerial parts of Tanacetum microphyllum D.C. (Compositae), used in folk medicine as an anti-inflammatory and anti-ulcer agent, were studied, the active principle hydroxyachillin (1) was isolated, and its pharmacological properties were analyzed. Hydroxyachillin showed marked anti-inflammatory
In our ongoing research into anti-inflammatory compounds from Tanacetum microphyllum, four naturally occurring flavonoids (santin, ermanin, centaureidin and 5,3'-dihydroxy-4'-methoxy-7-methoxycarbonylflavonol) and one sesquiterpene lactone (hydroxyachillin) isolated from this plant, were evaluated
4-beta-phorbol 12-myristate 13-acetate (PMA), when administered topically to mouse ear, induces a pronounced inflammatory response mediated by protein kinase C (PKC). Activation of PKC is implicated in the pathogenesis of inflammation, with phospholipase A2-dependent arachidonic acid release and
From the aerial parts of Achillea setacea W. & K. (Asteraceae) the main sesquiterpenes were isolated. Their structures were determined by means of 2D-NMR and MS as 11,13-dehydrodeacetylmatricarin (1) (= 14-deoxylactucin), rupicolin A (2), and rupicolin B (3). These are the first compounds with an
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