Antinociceptive study of extracts of Platanus orientalis leaves in mice

V Hajhashemi, A Ghannadi, S Mousavi


Platanus orientalis L. (Platanaceae) is a medicinal tree used in Iranian folklore and traditional medicine as a pain and inflammation reliever. In this study, the polyphenolic and total extract of P. orientalis leaves were prepared and their antinociceptive effects were studied in mice using the acetic acid-induced writhing, formalin and light tail flick tests. Both hydroalcoholic and polyphenolic extracts of P. orientalis at a dose of 2 g/kg significantly (p<0.05) reduced acetic acid-induced abdominal writhes. These extracts were also effective in suppression of formalin-induced pain behavior but they did not show any significant analgesia in light tail flick test. It is concluded that P. orientalis extracts have moderate analgesic effect and further studies are needed to elucidate the mechanism and active constituents.

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