PSMD9 and type 2 diabetes mellitus: One example may be represented by the PSMD9 gene, which we show as strongly linked to T2D,91 and others report as one of the major gene players in SCZ.92 PSMD9 is a co-activator and interacting partner of several proteins, thus it may well have pleiotropic effects on different pathways, as well as mediate inflammation.93