Objective To study the relationship among polymorphism of angiotensin converting enzyme (ACE) gene,angiotensin Ⅱ (Ag Ⅱ ) and coronary heart disease (CHD) with blood stasis syndrome. Methods Genotype (DD,ID,II), allele (D,I) of ACE and activity of Ag Ⅱ were detected in group of CHD with heart blood stasis syndrome,group of CHD without heart blood stasis syndrome, group of heart blood stasis syndrome without CHD and healthy control group. Results The frequency of DD type and D allele in group of CHD with heart blood stasis syndrome w...