Background: Subjects with mental disorders have a higher risk of suicide behaviors than the general population. So, to date, researchers have investigated some biomarkers possibly related to suicidality. Despite many studies have reported a possible relationship between low lipid serum levels and suicide attempt, conflicting results have emerged. Aim We investigated whether serum total cholesterol, LDL cholesterol and triglycerides are associated with recent suicide attempts in subjects with different mental disorders. Methods We conducted a cross-sectional study, including 593 consecutively admitted inpatients with schizophrenia spectrum, bipolar, major depressive, and personality disorders. Serum lipid levels were compared between subjects admitted for a recent suicide attempt and those without such recent history. Moreover, according to hypothesis that links impulsivity and violence with low serum lipid levels, the association between lipid levels and violent suicide attempt was assessed. Results We did not find any association of total and LDL cholesterol and triglycerides with suicide attempts, also considering diagnosis and suicide methods. In addition, a post-hoc analysis showed a trend toward significance (p=0.06) in the association between high cholesterol level (≥160mg/dL) and recent suicide attempt. Conclusions Our results do not support the hypothesis of association between lipid profiles and suicide attempts in subjects with different mental disorders. Further research is needed to clarify the role of biomarkers in suicidal behaviors.
Introduzione: I soggetti con disturbi mentali hanno un rischio più elevato di comportamenti suicidari rispetto alla popolazione generale. Pertanto, ad oggi, i ricercatori hanno studiato alcuni marcatori biologici potenzialmente correlati al suicidio. Nonostante molti studi abbiano riportato una possibile correlazione tra bassi livelli ematici di lipidi e tentativo di suicidio, sono emersi risultati contrastanti. Scopo del lavoro: Abbiamo studiato se il colesterolo totale , il colesterolo LDL e i trigliceridi ematici siano associati a recenti tentativi di suicidio in soggetti con diversi disturbi mentali. Metodi: Abbiamo condotto uno studio trasversale su 593 pazienti ricoverati di volta in volta, affetti da disturbo dello spettro di schizofrenico, disturbo bipolare, depressivo maggiore e di personalità. I livelli ematici dei lipidi sono stati confrontati tra soggetti ricoverati per un recente tentativo di suicidio e quelli senza tale storia recente. Inoltre, secondo l'ipotesi che collega impulsività e violenza con bassi livelli ematici di lipidi, è stata valutata l'associazione tra i livelli lipidici e il tentativo di suicidio con metodo violento. Risultati: Non abbiamo trovato alcuna associazione di colesterolo totale e LDL e trigliceridi con i tentativi di suicidio, analizzando anche per diagnosi e metodo di suicidio. Inoltre, un'analisi statistica post-hoc ha mostrato una tendenza verso la significatività (p = 0,06) nell'associazione tra un alto livello di colesterolo (≥160 mg / dL) e il recente tentativo di suicidio. Conclusioni: I nostri risultati non supportano l'ipotesi di associazione tra profili lipidici e tentativi di suicidio in soggetti con diversi disturbi mentali. Sono necessarie ulteriori ricerche per chiarire il ruolo dei marcatori biologici nei comportamenti suicidari.
(2019). RECENT SUICIDE ATTEMPTS AND SERUM LIPID PROFILE IN SUBJECTS WITH MENTAL DISORDERS: A CROSS-SECTIONAL STUDY. (Tesi di dottorato, Università degli Studi di Milano-Bicocca, 2019).
RECENT SUICIDE ATTEMPTS AND SERUM LIPID PROFILE IN SUBJECTS WITH MENTAL DISORDERS: A CROSS-SECTIONAL STUDY
CAPUZZI, ENRICO
2019
Abstract
Background: Subjects with mental disorders have a higher risk of suicide behaviors than the general population. So, to date, researchers have investigated some biomarkers possibly related to suicidality. Despite many studies have reported a possible relationship between low lipid serum levels and suicide attempt, conflicting results have emerged. Aim We investigated whether serum total cholesterol, LDL cholesterol and triglycerides are associated with recent suicide attempts in subjects with different mental disorders. Methods We conducted a cross-sectional study, including 593 consecutively admitted inpatients with schizophrenia spectrum, bipolar, major depressive, and personality disorders. Serum lipid levels were compared between subjects admitted for a recent suicide attempt and those without such recent history. Moreover, according to hypothesis that links impulsivity and violence with low serum lipid levels, the association between lipid levels and violent suicide attempt was assessed. Results We did not find any association of total and LDL cholesterol and triglycerides with suicide attempts, also considering diagnosis and suicide methods. In addition, a post-hoc analysis showed a trend toward significance (p=0.06) in the association between high cholesterol level (≥160mg/dL) and recent suicide attempt. Conclusions Our results do not support the hypothesis of association between lipid profiles and suicide attempts in subjects with different mental disorders. Further research is needed to clarify the role of biomarkers in suicidal behaviors.File | Dimensione | Formato | |
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