Fig. 4: Mean (and standard error of the mean) messenger ribonucleic acid expression of 5-HT1A, 5-HT2A, 5-HT2C, 5-HT1B and p11 in the amygdala of suicide victims who suffered from depression and of control subjects. Because there were only a few samples from women, only the data from men are presented. Data are presented as normalized cycle thresholds (Ctn) wherein the expression of each species was normalized by subtracting its cycle threshold (Ct) from the synaptophysin Ct. *p < 0.05 relative to control subjects of the same sex.