Indeed, high levels of CCL11, also named Eotaxin-1/C-C motif chemokine 11 [86, 87], CXCL12, also referred to as stromal cell-derived factor-1 (SDF-1) [88] and CCL7, also known as monocyte chemotactic protein-3 (MCP-3) [89] were suggested as biomarkers for periodontitis. The gene discussed is CXCL12; the disease is periodontitis.