Objective To study the relationships of extracellular matrix metalloproteinase inducer(EMMPRIN) expression in peripheral blood of the patients with coronary heart disease with plaque characteristics and content of matrix metalloproteinases(MMPs). Methods In this study, 69 patients diagnosed as stable angina pectoris(SAP) and 47 patients diagnosed as acute coronary syndrome(ACS) from June 2013 to October 2015 were separately enrolled into the SAP group and the ACS group, 57 cases of healthy volunteers during...