SLC39A12 and schizophrenia: When the subjects with schizophrenia were divided into MRDS, non-MRDS, and compared with controls, in BA 8 there was a significant variation in SLC39A12 variant 2 mRNA levels (KW=17.2, P=0.0002) due to higher levels of SLC39A12 variant 2 mRNA in both schizophrenia MRDS (P=0.001) and non-MRDS (P=0.01) compared with controls (Figure 1d).