Recent articles have shown that β-thujaplicin, a compound purified from a Taiwan tree (Chamaecyparis Obtusa) with several biological activities [43,44,45,46,47,48], could reduce pro-inflammatory cytokine-induced adhesion molecules and block DEHP-induced MMP-2 and MMP-9 expression and activities, which, in turn, lead to the prevention of initiation and development of atherosclerosis [48]. Here, MMP9 is linked to atherosclerosis.