PTH and calcification: Hormone and markers related to the regulation of phosphate metabolism, such as serum parathyroid hormone (PTH), alkaline phosphatase (ALKP), fibroblast growth factor 23 (FGF-23), and 1.25-(OH)2-D3 (VitD3) levels as all being linked to the development and progression of CV disease through vascular calcification or systemic inflammation6–8.