| 1. |
- Engström, Gunnar, et al.
(författare)
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Clinical characteristics and biological parameters in temperamental clusters of suicide attempters
- 1997
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Ingår i: Journal of Affective Disorders. - 1573-2517. ; 44:1, s. 45-55
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Tidskriftsartikel (refereegranskat)abstract
- A sample of 215 suicide attempters was categorized in a cluster analysis into four groups according to temperamental trails. Monoamine metabolites in the cerebrospinal fluid were analysed (n = 106). Dexamethasone suppression tests (DST) were performed (n = 154) and the activity of the enzyme monoamine oxidase in platelets (pl-MAO) was assessed (n = 103). Patients belonging to the two clusters with the most deviant temperament profiles (nos 2 and 3) were young and scored high on the Beck Hopelessness Scale and the Suicide Assessment Scale. "Cluster 3" ("neurotic, impulsive, aggressive") patients often had dysthymia and axis II, cluster B diagnoses (e.g. borderline or histrionic personality). "Cluster 2" ("neurotic and introverted") patients often had major depression. The "Cluster 1", with on the whole a normal temperament profile, had significantly higher levels of post-DST cortisol than the other clusters. The "Cluster 4" had a normal temperament profile. Adjustment disorders were most common in "Cluster 1" and "Cluster 4". The monoamine metabolite levels did not differ between the clusters, and the differences in pl-MAO activity disappeared after adjusting for age and gender. The results suggest that temperament profiles in suicide attempters are related to psychiatric diagnoses, suicidality, hopelessness, and post-DST cortisol, but are not predictive of completed suicide.
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| 2. |
- Simonsson, Per, et al.
(författare)
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Peripheral serotonergic markers in patients with suicidal behavior
- 1991
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Ingår i: European Neuropsychopharmacology. - 1873-7862. ; 1:4, s. 503-510
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Tidskriftsartikel (refereegranskat)abstract
- Peripheral serotonergic parameters were studied in 17 patients with a history of suicidal behavior and in 17 age- and sex-matched healthy controls. Serotonin2 receptor function in platelets, measured as serotonin-induced [32P]phosphatidylinositol 4,5-bisphosphate hydrolysis, was significantly higher in patients than in age- and sex-matched controls. Increased serotonin2 receptor transduction was not correlated to psychiatric diagnosis, drug treatment or a history of violent suicide attempt. Monoamine oxidase activity was lower in platelets from patients with a history of suicidal behavior than in controls. In addition, whole blood serotonin was analyzed but no significant alterations were found in blood from patients.
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| 3. |
- Träskman Bendz, Lil, et al.
(författare)
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The role of monoamines in suicidal behavior
- 1993
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Ingår i: Acta Psychiatrica Scandinavica. Supplementum. - : Wiley. - 0065-1591 .- 0001-690X .- 1600-0447. ; 87:S371, s. 45-47
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Tidskriftsartikel (refereegranskat)abstract
- Cerebrospinal fluid (CSF), urine, platelet and neuroendocrine challenge tests of monoaminergic function give evidence of monoamines, especially serotonin, playing an important role in suicidal behavior. However, additional clinical, social and biochemical factors are necessary to better define suicide-prone psychiatric patients.
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