Effect of oleanane triterpenoids from Terminalia arjuna--a cardioprotective drug on the process of respiratory oxyburst.Phytomedicine. 2005 May; 12(5):391-3.P
The oleanane triterpenes arjunic acid, arjungenin and their glucosides, arjunetin and arjunglucoside II, were isolated from the bark of Terminalia arjuna. Arjungenin and its glucoside exhibited a moderate free radical scavenging activity while all the compounds showed no effect on the superoxide release from PMN cells. Further arjungenin also exhibited greater inhibitory action on the hypochlorous acid production from human neutrophils.