Abstract
The effects of the ether extract from the leaves of Putranjiva roxburghii (P. roxburghii) Wall. were assessed on nociceptive responses in mice by using writhing, hot plate, and formalin tests and the antipyretic activity was determined in yeast-induced fever in rats. Anti-inflammatory activities were also investigated using carrageenin-induced paw edema in rats and croton oil-induced ear and anus edemas. The ether extract (100, 200, and 400 mg/kg, p.o.) of P. roxburghii dose-dependently produced analgesic activity in acetic acid-induced writhing in mice. The extract had no significant effect in the hot plate test in mice. At the dose of 400 mg/kg, the extract significantly suppressed the licking activity in the late phase of the formalin test in mice and decreased fever induced by yeast in rats. The extract exhibited moderate inhibitory activity of inflammation in carrageenin-induced paw edema in rats. The extract inhibited croton oil-induced ear edema in a dose-dependent manner (1.25, 2.5, and 5.0 mg/ear) in mice. The extract decreased anus edema induced by croton oil at the high dose of 800 mg/kg in rats. The results indicated that the ether extract of P. roxburghii leaves possesses analgesic, antipyretic, and anti-inflammatory activities.
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The authors are very grateful to the Graduate School, Prince of Songkla University for financial support of this work.
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Reanmongkol, W., Noppapan, T. & Subhadhirasakul, S. Antinociceptive, antipyretic, and anti-inflammatory activities of Putranjiva roxburghii Wall. leaf extract in experimental animals. J Nat Med 63, 290–296 (2009). https://doi.org/10.1007/s11418-009-0336-6
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DOI: https://doi.org/10.1007/s11418-009-0336-6