CDKN2B-AS1 and ischemic cardiomyopathy: MiR-497 (Voellenkle et al., 2010), miRNA-30e (Zheng et al., 2018), and lncRNA-ANRIL (Liu Z. F. et al., 2020) were significantly reduced in the serum of patients with coronary heart disease such as ischemic cardiomyopathy and MIRI.