A significant difference in the genotype distribution of ACE I/D and Ang II AT2 receptor C3123A polymorphisms were observed between the CAD patients the and control subjects (p = 0.023 and 0.0001, respectively), however no significant differences were observed in the genotype distribution of AGT M235T between the CAD patients and the control subjects (p = 0.102). This evidence concerns the gene AGT and coronary artery disorder.