Magnoflorine, an natural alkaloid found in coptidis rhizoma, exerts an inhibitory effect against Cu2+-induced lipid peroxidation of high density lipoprotein (HDL), has beneficial properties on protecting human HDL against lipid peroxidation..Magnoflorine possesses high activity as α-glucosidase inhibitor in vitro and in vivo, which indicates that the compound has antidiabetic potential activity.

(+)-Matairesinol exhibits immunomodulatory activity; it also shows inhibition of the discoloration of yellowtail dark muscle.

(+)-Matairesinol exhibits immunomodulatory activity; it also shows inhibition of the discoloration of yellowtail dark muscle.

(+)-Matairesinol is isolated from the roots of Wikstroemia indica. (+)-Matairesinol exhibits immunomodulatory activity. It shows inhibition of the discoloration of yellowtail dark muscle.