When the schizophrenia and bipolar disorder groups were combined and divided according to fluoxetine use, no group differences in pan GR, GR-1B, GR-1F or GR-1H GR mRNA expression of individuals on fluoxetine (n = 7), compared with individuals not on fluoxetine (n = 58), were observed. This evidence concerns the gene NR3C1 and bipolar disorder.