Serotonin transporter: a potential substrate in the biology of suicide.
Suicide is a serious public health problem in the US, yet its neurobiological underpinnings are poorly understood. Suicide is highly correlated with depressive symptoms, and considerable evidence suggests that depression is associated with a relative deficiency in serotonergic neurotransmission. Serotonergic circuits also mediate impulsivity, a trait obviously relevant to suicide. These findings, taken together, suggest that alterations in the serotonergic system might contribute to suicidal behavior, serving as an impetus for researchers to scrutinize the serotonin transporter (SERT) as a potential substrate for the pathophysiology of suicide. Using post-mortem brain tissue, platelets, and DNA from suicide completers and attempters have not provided unequivocal evidence for a pre-eminent role for the SERT in the pathophysiology of suicide. This paper provides a review of several studies that have evaluated the role of the SERT in the pathophysiology of suicide.
Purselle
David C
DC
Department of Psychiatry and Behavioral Science, Emory University School of Medicine, Atlanta, GA 30322, USA.
Nemeroff
Charles B
CB
D000818:Animals; D015415:Biomarkers / Q000032:analysis; D002352:Carrier Proteins / Q000235:genetics / Q000378:metabolism / Q000502:physiology*; D006801:Humans; D008562:Membrane Glycoproteins / Q000235:genetics / Q000378:metabolism / Q000502:physiology*; D026901:Membrane Transport Proteins; D009419:Nerve Tissue Proteins; D012701:Serotonin / Q000378:metabolism* / Q000502:physiology; D050486:Serotonin Plasma Membrane Transport Proteins; D013405:Suicide / Q000523:psychology
D015415:Biomarkers; D002352:Carrier Proteins; D008562:Membrane Glycoproteins; D026901:Membrane Transport Proteins; D009419:Nerve Tissue Proteins; C493230:SLC6A4 protein, human; D050486:Serotonin Plasma Membrane Transport Proteins; D012701:Serotonin