HDAC9 and coronary artery disorder: In ANCOVA models adjusted for covariates, HDAC9 mRNA expression (1.20 ± 0.41 vs 1.06± 0.39, P = 0.031) and plasma HDAC9 levels (54.2± 9.9 vs 50.6± 8.7, P = 0.015) in CAD patients were significantly higher than those in controls.