Hypothalamic pituitary adrenal axis and prolactin abnormalities in suicidal behavior.

Hypothalamic-Pituitary-Adrenal (HPA) axis hyperactivity measured with the dexamethasone suppression test and the dexamethesone/CRH test may have some predictive power for suicidal behavior in patients with mood disorders. Increased prolactin (PRL) levels may be related both to physiological and pathological conditions. HPA-axis abnormalities and increased levels of PRL may coexist, and common neuroendocrine changes may activate both HPA axis and PRL release. HPA-axis hyperactivity is presumably present in a large subpopulation of depressed subjects. Suicidal behavior is considered to be a form of inward-directed aggression, and aggressive behavior has been connected to high androgen levels. However, lower plasma total testosterone levels have also been reported in subjects with depression and higher suicidality. Lipid/immune dysregulations, the increased ratio of blood fatty acids, and increased PRL levels may each be associated with the increased production of pro-inflammatory cytokines, which have been reported in patients with major depression and patients engaging in suicidal behavior. Although no studies have been done to determine whether ante-mortem physical stress may be detected by raised post-mortem PRL, this would be of great interest for physicians.

Mood disorders medications: predictors of nonadherence - review of the current literature.

Studies have shown that there are several factors that predict nonadherence among patients with mood disorders. The aim of the present review is to identify the predictors of nonadherence among these patients. A careful review of the literature was conducted investigating several potential predictors of nonadherence among patients with mood disorders. A total of 217 relevant articles from peer-reviewed journals were considered, and articles that met our inclusion criteria (n = 54) were selected for this review. The authors identified several predictors of nonadherence among patients with mood disorders including younger age (below 40 years old), comorbidity with substance use and personality disorders, patients' beliefs, poor insight, illness severity, treatment-related side effects, specific features of the disease and a poor therapeutic alliance. Substance use disorder and illness severity are significant predictors of nonadherence especially in patients with bipolar disorder; whereas, treatment side effects are of primary importance for depressive disorder. The authors could not carry out a meta-analysis given that the studies considered in this review assessed patients at different time points and included different measurements of nonadherence. Moreover, articles cited in this review may reflect the authors' choice, and the authors did not investigate the adherence to a specific class of drugs commonly used in the management of mood disorders. Given the high social, clinical and economic impact of nonadherence among patients who are affected by mood disorders, it is critical to recognize patients at high risk of nonadherence in order to inform future strategies to examine and improve adherence to treatment. Further research is needed to clarify this issue.

The role of inflammatory cytokines in suicidal behavior: a systematic review.

There is growing evidence that inflammatory mediators play a critical role in the pathophysiology of both major depression and suicidal behavior. Immunological differences have been reported in both major affective disorders and suicidal behavior. Specifically, increased levels of pro-inflammatory cytokines have been shown to correlate with the severity of depression and various cytokines have been identified as potentially important in understanding the pathophysiology of major affective disorders/suicidality. We aimed to conduct a systematic review of the current literature to investigate the association between inflammatory cytokines and suicidal behavior. Only articles from peer-reviewed journals were selected for inclusion in the present review. Most studies documented the association between suicidality and IL2, IL-6, IL-8, TNF-α and VEGF levels that have been found altered in suicidal behavior. The presence of major depressive disorder (MDD) with suicidal ideation/attempts was associated with differences in inflammatory cytokine profile when compared to that without suicidal ideation/attempts. Most suicide attempters or subjects with suicidal ideation showed an imbalance of the immune system but this does not imply the existence of a causal link. Also, not all studies demonstrated a positive correlation between inflammatory cytokines and suicidal behavior. Further additional studies should elucidate the molecular mechanisms of the immune activation pathways underlying suicidality.

Affective temperaments and hopelessness as predictors of health and social functioning in mood disorder patients: a prospective follow-up study.

BACKGROUND: Affective disorders are highly disabling illnesses constituting a significant burden for the patients, their family and the society. Therefore, it would be very useful to find tools which carefully subtype these conditions and have a strong and reliable predictive power concerning the course of illness and health and social functioning. To date, the role of hopelessness and affective temperaments in the prediction of health and social functioning and the course of affective disorders has not been studied. Thus, the aim of the present study was to assess whether affective temperaments and hopelessness, measured during hospitalization, can be useful in the prediction of global functioning (the severity of the illness and the presence and severity of psychosocial problems) at follow-up in inpatients with major depressive disorder and bipolar disorder (BD). METHODS: The patients were 96 consecutive patients admitted to the inpatient psychiatric clinic of Sant'Andrea Hospital between January 2009 and December 2010. All patients completed the Temperament Evaluation of Memphis, Pisa, Paris and San Diego (TEMPS-A) and the Beck Hopelessness Scale on admission. They were contacted on average 14 months after discharge and were asked to complete a telephone interview based on the Health of the Nation Outcome Scales (HoNOS). RESULTS: Two patients committed suicide before the follow-up assessment. Around 77% of the patients who completed the follow-up assessment were diagnosed as BD, and around 47% reported severe hopelessness. In the multivariate analyses, a factor derived from hopelessness and hyperthymia scores and unemployment, independently predicted severity of the illness and psychosocial functioning at the follow-up. CONCLUSIONS: Screening for the affective temperament profile and for hopelessness has importance for designing the treatment and rehabilitation plans of affective disorder patients, as these variables are involved in the course and outcome of affective disorder patients and influence their health and social functioning.

Suicide risk in multiple sclerosis: a systematic review of current literature.

BACKGROUND: Studies have shown that suicidal ideation is often revealed among patients suffering from Multiple Sclerosis (MS). Mental health assessment of physically ill patients should form part of routine clinical evaluation, particularly in chronic illness. OBJECTIVE: The aim of the present paper was to investigate whether there was a relationship between MS and suicidal behavior. METHODS: A systematic review of the literature was conducted to determine the potential association between MS and suicidal behavior. A total of 12 articles from peer-reviewed journals were considered and selected for this review. RESULTS: Most studies have documented a higher suicide rate in patients with MS compared to the general population, and suicide was associated with several risk factors: Depression severity, social isolation, younger age, progressive disease subtype, lower income, earlier disease course, higher levels of physical disability, and not driving. CONCLUSIONS: Clinicians should be aware of the fact that suicidality may occur with higher frequency in MS patients, the available data suggest that the risk of self-harm is higher than expected in MS patients.

Car accidents as a method of suicide: a comprehensive overview.

The research literature provides evidence on the possible link between single-car accident drivers and suicidal intent, and some scholars have stressed the role of unconscious suicidal motivations in some single-car accidents. This paper review relevant literature on the topic and sheds light on neglected factors that may play a central role in reducing the number of deaths due to car accidents. We performed careful PubMed, and PsycInfo searches to identify all papers and book chapters in English during the period 1955-2011. Our overview of the literature indicates that above 2% of the traffic accidents are suicide behaviors. However, the phenomenon may be underreported, considering that suicides by car accidents may be reported as accidental in the national statistics. On the other hand, the association between accident-pronesses and unconscious self-destructive impulses is an issue that is difficult to solve.