GRIN2B and psychiatric disorder: Focusing on miR-223, we then examined the expression of proven miR-223 targets, GRIA2 and GRIN2B [50], which are of relevance to psychiatric disorders, in our cohort using qRT-PCR with normalization to the unaltered and reliable for postmortem studies 18S rRNA [14, 53, 60] (Fig. S1).