ABCG1 and coronary artery disorder: However, POMC expression was found to negatively associate with ABCA1 (P = 0.010), ABCG1 (P = 0.0004) and SCARB1 (P = 0.0088) in the whole blood samples of non-CAD controls, while these correlations were completely absent in patients with CAD (P > 0.2 for all, Fig. 6E).