Only a small number of studies were successfully performed and few genetic loci (2q21-22, Xq23-26 [10], myocyte enhancer factor-2 (MEF2A) [11], arachidonate 5-lipoxygenase-activating protein (ALOX5AP) [12], leukotriene A4 hydrolase (LTA4H) [13]) were detected to be associated with CAD (Table 2). The gene discussed is ALOX5AP; the disease is coronary artery disorder.