C1QTNF4 and atherosclerosis: Here, we aimed to assess the relation of CTRP4 levels in serum and perivascular adipose tissue (PVAT) with coronary artery disease (CAD), and investigate the effect of CTRP4 on atherosclerosis and the underlying mechanisms.<h4>Methods</h4>CTRP4 levels were examined in serum and epicardial adipose tissue (a major PVAT) from patients with CAD.