DOCK9 and schizophrenia: In schizophrenia, the pericytes presented reduced expression of DOCK9. Besides the role of DOCK9 in promoting dendrite growth [96], it was implicated in the modulation of blood vessel morphology [63], and evidence derived from cortical and retinal vasculature indicate alterations in the morphology of the vessels and in the structure of the vascular network in schizophrenia [97–107].