There were not any significant differences in the peak levels of circulating CD14++CD16− monocytes among the patients with AMI, unstable angina pectoris (UAP), and stable angina pectoris (SAP), but that of circulating CD14+CD16+ monocytes (defined as CD14++CD16+ plus CD14+CD16++ monocytes) were significantly decreased in AMI patients compared with those in patients with UAP or SAP (36). Here, CD14 is linked to intermediate coronary syndrome.