Arctigenin
Arctigenin is a lignan found in certain plants of the Asteraceae, including the greater burdock and Saussurea heteromalla. It has shown antiviral and anticancer effects in vitro. It is the aglycone of arctiin.
The use of arctigenin has been shown to be effective in a mouse model of Japanese encephalitis.
It has been found to act as an agonist of adiponectin receptor 1.