Some studies have shown that lncRNAs could stably exist in peripheral blood mononuclear cells (PBMCs); for example, a lncRNA named OTTHUMT0000038702212 can serve as a unique biomarker to identify coronary artery disease (CAD), and ZFAS1 and CDR1AS13 also predict AMI with a higher specificity. Here, ZFAS1 is linked to coronary artery disorder.