Fig. 2. Serotonin transporter (SERT) binding in the prefrontal cortex.

A suicide and major depressive disorder (MDD), B alcohol use disorder and C early life adversity (ELA). SERT sites were labeled with [³H]-Cyanoimipramine. Note that: SERT is less in depressed suicide decedents and with MDD. With AUD there is more SERT but only in suicides, and there is more in ELA but only in nonsuicides. Values are expressed as mean ± SEM