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  • Title: Topical anti-inflammatory activity of a new germacrane derivative from Achillea pannonica.
    Author: Sosa S, Tubaro A, Kastner U, Glasl S, Jurenitsch J, Della Loggia R.
    Journal: Planta Med; 2001 Oct; 67(7):654-8. PubMed ID: 11582545.
    Abstract:
    The topical anti-inflammatory activity of a germacrane derivative [1,4-dihydroxy-germacra-5E-10(14)-diene; DHGD] isolated from Achillea pannonica Scheele (Asteraceae) was investigated employing the Croton oil-induced dermatitis in the mouse ear. Its effects on the oedematous response and on leukocytes infiltration are described. The germacrane derivative significantly inhibited ear oedema in a dose-dependent manner, with an ID(50) of 0.40 micromol/cm(2). DHGD (0.75 micromol/cm(2)) provoked a global inhibition of the oedematous response (61 %) higher than that induced by an equimolar dose of indomethacin (43 %) within 24 hours; the reduction induced by hydrocortisone (0.10 micromol/cm(2)) was 68 %. The effect of DHGD (61 % inhibition) was higher than that of the equimolar dose of indomethacin (51 % inhibition) also on granulocytes recruitment at the site of inflammation. Hydrocortisone (0.10 micromol/cm(2)) reduced the cellular infiltrate by 44 %.
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