Other two differently expressed genes are MUC16 (chromosome 19, cytogenetic band 19p13.2) and POFUT2 (chromosome 21, cytogenetic band 21q22.3) which upregulation in DS could have implications on the correct mucous cell function and on olfactory cell survival, both meaningful elements for preserving the olfactory function. Here, MUC16 is linked to Dravet syndrome.