Recent studies have reported that an intronic single-nucleotide polymorphism (SNP) rs1739843 in HSPB7 is highly associated with heart failure (HF) [18–20], dilated cardiomyopathy (DCM) [21], and idiopathic DCM [22] in human patients. This evidence concerns the gene HSPB7 and familial dilated cardiomyopathy.