... has been shown to increase the production of interferon and to activate immune cells such as macrophages. ... astraglosides I, II, and IV, isoastragalosde I, 3-o-beta-D-xylopyranosyl-cycloastragnol, etc.; Triterpene glycosides: brachyosides A, B ... C, and cyclocephaloside II, astrachrysoside A; Sterols: daucosterol and beta-sitosterol; Fatty acids; Isoflavonoid compounds: strasieversianin XV (II), ...