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  • Title: Evaluation of the analgesic and topical anti-inflammatory effects of Hypericum reflexum L. fil.
    Author: Sánchez-Mateo CC, Bonkanka CX, Hernández-Pérez M, Rabanal RM.
    Journal: J Ethnopharmacol; 2006 Aug 11; 107(1):1-6. PubMed ID: 16549285.
    Abstract:
    The present study investigates the analgesic and topical anti-inflammatory effects of the infusion, methanol extract and fractions of the aerial part in blossom of Hypericum reflexum L. fil. in mice. The acetic acid-induced writhing test, formalin test, tail flick test and the tetradecanoylphorbol acetate (TPA)-induced ear inflammation model in mice were used to determine these effects. Our findings show that oral administration of all extracts tested from this species significantly inhibit acetic acid-induced writhing in mice. Only the methanol extract and chloroform fraction were significantly active in both phases of formalin-induced pain and in the tail flick assays, suggesting that they may have central analgesic properties. On the other hand, the topical treatment of methanol extract, butanol and chloroform fractions of this species significantly reduced the TPA-induced ear oedema. In conclusion, the results indicate analgesic and topical anti-inflammatory activities in mice for the Hypericum species studied.
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