Shroff et al., (2019) reported that subjects carrying the HDAC9 rs2107595 risk allele had 155 differentially expressed genes involved in the regulation of β-cellular gene expression, the diabetes pathway, IL-6 signaling, cholesterol efflux, and platelet aggregation that might have an impact on T2D development and its CHD complication [232]. Here, HDAC9 is linked to coronary artery disorder.