Parathyroid hormone (PTH) and 1,25(OH)2D3 (1,25D) regulate extensive target genes in cementoblasts. (A) Selected genes mutually regulated by both PTH and 1,25D were manually grouped by category and delineated based on their degree of regulation (red, upregulated; green, downregulated). (B) Venn diagram of PTH and 1,25D upregulated (red), downregulated (green), and inversely regulated genes.