ABCG1 and aortic atherosclerosis: Only the relative levels of the Abca1 mRNA were inversely correlated with aortic atherosclerosis (Abca1 mRNA: Spearman’s r = −0.42, p < 0.05), while relative levels of the Abcg1 mRNA only showed a nonsignificant trend towards an association with the area of atherosclerotic lesions (Spearman’s r = −0.40, p = 0.06) (Figure S4, panels (b) and (c)).