
Keywords: 5،6،7،8-تتراهیدروبیوپترین; BH4; 5,6,7,8-tetrahydrobiopterin; DA; Dopamine; l-DOPA; l-3,4-dihydroxyphenylalanine; GCH; GTP cylohydrolase I; HIV; human immunodeficiency virus infection; HUVEC; human umbilical vein endothelial cells; IDO; indoleamine 2,3-dioxygenase; IFN-α -à -γ; i