APOB and coronary artery disorder: Prospective epidemiological studies have shown that unfavorable serum lipid levels such as raised levels of total cholesterol (TC) [1], triglyceride (TG) [2], low-density lipoprotein cholesterol (LDL-C) [3], and apolipoprotein (Apo) B [4], together with decreased levels of ApoA1 [4] and high-density lipoprotein cholesterol (HDL-C) [5] are the most important risk factors for coronary artery disease (CAD) and are the targets for therapeutic intervention [6].