(+)-Guaiacin is a compound isolated from the bark of Machilus wangchiana Chun. It shows potent in vitro activities against the release of β-glucuronidase in rat polymorphonuclear leukocytes (PMNs) induced by platelet-activating factor (PAF).
meso-Dihydroguaiaretic acid is an LXR-α antagonist, it inhibits hepatic lipid accumulation by activating AMP-activated protein kinase in human HepG2 cells.