APOB and metabolic syndrome: Many epidemiological and clinical studies have shown that dyslipidemia, including high levels of plasma or serum total cholesterol (TC) [1,2], triglyceride (TG) [3,4], low-density lipoprotein cholesterol (LDL-C) [5,6] and apolipoprotein B (ApoB) [7,8], and low levels of high-density lipoprotein cholesterol (HDL-C) and ApoAI [9,10], is strongly associated with an increased risk of coronary artery disease (CAD).