Anti-inflammatory activity of alkanoids and triterpenoids from Trichodesma amplexicaule Roth.

The phytochemical investigation of Trichodesma amplexicaule guided by bioassay, to isolation of triterpenoids and aliphatic phytoconstituents. To evaluate the anti-inflammatory activities of isolated phytoconstituents, models with carrageenan-induced acute arthritis and complete Freund's adjuvant (CFA)-induced chronic arthritis in rats were conducted. The investigated results showed that alkanoic acid significantly inhibited the carrageenan-induced acute arthritis. Moreover, alkane also supressed the development of chronic arthritis induced by CFA. It has been reported that alkane was the major phytoconstituent (1.03 +/- 0.00135%) in in vivo studies.