Shown here are all published candidate gene association studies of gene DRD4 in bipolar disorder as of 05/01/2013. For genes with three or more case-control studies, a meta-analysis has been carried out. The results of meta-analysis are graphically displayed in the Results Figure, and key data from each of the studies are provided in the Results Table. Details of the methods for carrying out the meta-analysis are provided here.
Gene-environment interaction in psychiatric disorders as indicated by season of birth variations in tryptophan hydroxylase (TPH), serotonin transporter (5-HTTLPR) and dopamine receptor (DRD4) gene polymorphisms.