The aim of this study is to assess the association of oxidized HDL with PON-1 activity, oxidized low-density lipoprotein (LDL), vascular cell adhesion molecule-1 (VCAM-1), IL-6 levels, and nitric oxide (NO) production as markers of vascular health.<h4>Methods</h4>We assessed HDL function in three groups: 90 CAD patients, 90 healthy controls, and 90 ACS patients. The gene discussed is IL6; the disease is coronary artery disorder.