DCN and cardiovascular disorder: Furthermore, in the present study, IPA revealed that the affected genes associated with cardiovascular disease as one of the main aging-associated diseases; these genes included the genes for many extracellular space protein (DCN, ELN, IGFBP3, POSTN, PTX3, THBS1, and THBS2), which were downregulated in fibroblasts from ARCL2B patients.