Following endothelial dysfunction factors: endothelin 1 (Biomedica), MCP-1 (Bender Medsystems), sVCAM-1 (Biosource), ADMA (Immunodiagnost), homocysteine (Ahis-Shield), and PAI-1 (Technoclone) were determined by ELISAs method also. The gene discussed is EDN1; the disease is endothelial dysfunction.