On the other hand, monocytes isolated from patients with dermal sequelae of visceral leishmaniasis (post-kala-azar dermal leishmaniasis—PKDL) demonstrated decreased expression of TLR-2/4, simultaneous attenuation of ROS and increased expression of classic M2 markers (CD206, ARG1, and PPARγ). This evidence concerns the gene ARG1 and visceral leishmaniasis.