BMP7 and coronary artery disorder: Serum BMP7 concentrations were significantly decreased in patients with CAD and showed an increased trend in patients with CAD recovery (control: 31.6 ± 8.40 pg ml−1; CAD: 8.78 ± 2.37 pg ml−1; CAD recovery: 13.42 ± 2.27 pg ml−1, p < 0.05).