SERPINA3 and coronary artery disorder: Plasma SERPINA3 levels were significantly higher in ACS and stable CAD patients than in non-CAD patients and were highest in ACS patients [non-CAD: 65.3(47.7–137.3) μg/mL; stable CAD: 90.9(50.8–212.4) μg/mL; ACS: 324.6(204.8–388.3) μg/mL] (Figure 2B).