In the larval exposure, we also detected increased expression of hdmh, erg1, cp51a, and npc2 (encoding the proteins squalene epoxidase, and cytochrome P450 51A, Niemann-Pick disease, type C2, respectively) at the latest stages examined (14 and 18 dph). This evidence concerns the gene NPC2 and Niemann-Pick disease, type C2.