Sesquiterpenos (C₂₅)

Atractylenolide II has antiinflammatory activity, it can inhibit platelets activities and thrombus formation. Atractylenolide II has cytotoxic/apoptotic effects may via p38 activation ,ERK and Akt inactivation, p53 dependent, it also has antimelanoma effect by inhibiting STAT3 signalling.

Nootkatone, a naturally occurring AMPK activator, can stimulate energy metabolism and prevents diet-induced obesity by activating AMPK. (+)-Nootkatone has antiallergic, anti-inflammatory, antiproliferative, and antiplatelet activities. Nootkatone is a strong repellent and toxicant to Formosan subterranean termites, the lowest effective concentration tested is 10 micrograms/g substrate. (+)-Nootkatone has potent inhibitory effect on collagen-, thrombin-, and AA-induced platelet aggregation, it also has a significant inhibitory effect on rat platelet aggregation ex vivo.