Abstract
Previous studies have shown that dysfunctions in the serotonin system and hypothalamic-pituitary-adrenal axis (HPA) are associated strongly with suicidal behavior and suicide, especially among individuals with major depressive disorder. Suicidal behavior has been explained using both the stress-diathesis model and the state-trait interaction model. Specifically, diatheses, or trait-dependent risk factors, are associated with dysfunctions in the serotonin system; however, stress responses, or state-dependent factors, are associated with HPA hyperactivity. Decreases in cholesterol and brain-derived neurotrophic factor (BDNF) levels have been associated with impaired brain plasticity among individuals with suicidal behavior. Decreased serotonin functioning has been measured using cerebral spinal fluid (CSF) 5-HIAA, fenfluramine challenge studies, and platelet 5-HT2A receptors. HPA axis dysfunction has been evaluated with the dexamethasone suppression test. Cholesterol and BDNF levels have been measured in blood serum or plasma. Nevertheless, challenges to finding promising and accessible neurobiological predictors of suicide and suicidal behavior remain. As suicide behavior is a complex phenomenon, a combined or multidimensional approach, including each of the aforementioned methods, may be required to predict suicide risk among individuals with major depressive disorder.
| Original language | English |
|---|---|
| Pages (from-to) | 842-847 |
| Number of pages | 6 |
| Journal | Progress in Neuro-Psychopharmacology and Biological Psychiatry |
| Volume | 35 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2011 Jun 1 |
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Keywords
- BDNF
- Cholesterol
- Hypothalamic-pituitary-adrenal
- Neurobiology
- Serotonin
- Suicide
ASJC Scopus subject areas
- Biological Psychiatry
- Pharmacology
Cite this
Potential peripheral biological predictors of suicidal behavior in major depressive disorder. / Lee, Bun Hee; Kim, Yong Ku.
In: Progress in Neuro-Psychopharmacology and Biological Psychiatry, Vol. 35, No. 4, 01.06.2011, p. 842-847.Research output: Contribution to journal › Short survey
}
TY - JOUR
T1 - Potential peripheral biological predictors of suicidal behavior in major depressive disorder
AU - Lee, Bun Hee
AU - Kim, Yong Ku
PY - 2011/6/1
Y1 - 2011/6/1
N2 - Previous studies have shown that dysfunctions in the serotonin system and hypothalamic-pituitary-adrenal axis (HPA) are associated strongly with suicidal behavior and suicide, especially among individuals with major depressive disorder. Suicidal behavior has been explained using both the stress-diathesis model and the state-trait interaction model. Specifically, diatheses, or trait-dependent risk factors, are associated with dysfunctions in the serotonin system; however, stress responses, or state-dependent factors, are associated with HPA hyperactivity. Decreases in cholesterol and brain-derived neurotrophic factor (BDNF) levels have been associated with impaired brain plasticity among individuals with suicidal behavior. Decreased serotonin functioning has been measured using cerebral spinal fluid (CSF) 5-HIAA, fenfluramine challenge studies, and platelet 5-HT2A receptors. HPA axis dysfunction has been evaluated with the dexamethasone suppression test. Cholesterol and BDNF levels have been measured in blood serum or plasma. Nevertheless, challenges to finding promising and accessible neurobiological predictors of suicide and suicidal behavior remain. As suicide behavior is a complex phenomenon, a combined or multidimensional approach, including each of the aforementioned methods, may be required to predict suicide risk among individuals with major depressive disorder.
AB - Previous studies have shown that dysfunctions in the serotonin system and hypothalamic-pituitary-adrenal axis (HPA) are associated strongly with suicidal behavior and suicide, especially among individuals with major depressive disorder. Suicidal behavior has been explained using both the stress-diathesis model and the state-trait interaction model. Specifically, diatheses, or trait-dependent risk factors, are associated with dysfunctions in the serotonin system; however, stress responses, or state-dependent factors, are associated with HPA hyperactivity. Decreases in cholesterol and brain-derived neurotrophic factor (BDNF) levels have been associated with impaired brain plasticity among individuals with suicidal behavior. Decreased serotonin functioning has been measured using cerebral spinal fluid (CSF) 5-HIAA, fenfluramine challenge studies, and platelet 5-HT2A receptors. HPA axis dysfunction has been evaluated with the dexamethasone suppression test. Cholesterol and BDNF levels have been measured in blood serum or plasma. Nevertheless, challenges to finding promising and accessible neurobiological predictors of suicide and suicidal behavior remain. As suicide behavior is a complex phenomenon, a combined or multidimensional approach, including each of the aforementioned methods, may be required to predict suicide risk among individuals with major depressive disorder.
KW - BDNF
KW - Cholesterol
KW - Hypothalamic-pituitary-adrenal
KW - Neurobiology
KW - Serotonin
KW - Suicide
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UR - http://www.scopus.com/inward/citedby.url?scp=79956020090&partnerID=8YFLogxK
U2 - 10.1016/j.pnpbp.2010.08.001
DO - 10.1016/j.pnpbp.2010.08.001
M3 - Short survey
C2 - 20708058
AN - SCOPUS:79956020090
VL - 35
SP - 842
EP - 847
JO - Progress in Neuro-Psychopharmacology and Biological Psychiatry
JF - Progress in Neuro-Psychopharmacology and Biological Psychiatry
SN - 0278-5846
IS - 4
ER -