Anti-inflammatory activity of Piper magnibaccum (Piperaceae)

Abstract

Anti-inflammatory activity of a crude extract of Piper magnibaccum (Piperaceae) and of compounds isolated from it was established using the TPA-induced mouse ear edema model and an in vitro quantitative lipoxygenase inhibition assay. Five compounds were isolated from P. magnibaccum [β-sitosterol, N-isobutyl-(2E,4E)-tetradecadienamide, linoleic acid, 13-(4′, 5′-dimethoxytridecanoyl)piperidine, and piperine]. The light petroleum extract of the plant exhibited significant anti-inflammatory activity in both models. N-isobutyl-(2E,4E)-tetradecadienamide showed significant activity, with an IE % value of 70.2 ± 5.4 in the TPA-induced mouse ear edema model and 87.2 ± 0.11 in the in vitro quantitative lipoxygenase inhibition assay.