As to the co-treatment condition, an interesting observation in the miRNA-mRNA network was the direct interaction of ALDH1A2 with three schizophrenia-related miRNAs: hsa-miR-137, hsa-miR-542-3p, and hsa-miR-338-3p (Figure 4). This evidence concerns the gene ALDH1A2 and schizophrenia.