We used the RayBio® Human ELISA Kit (Norcross, GA, USA), a highly sensitive and highly specific enzyme-linked immunosorbent assay, to determine the concentration of biological markers of inflammation (IL-6, IL-10, IL-13, IL-15, TNF-α) and bone, muscle, and fat remodeling (leptin, calcitonin, osteoprotegerin, osteocalcin, myostatin) in the serum of patients with coronary artery disease before planned PCI. This evidence concerns the gene IL15 and coronary artery disorder.