TY - JOUR PY - 2021// TI - Inflammation biomarkers in suicide attempts and their relation to abuse, global functioning and cognition JO - World journal of biological psychiatry A1 - Fernández-Sevillano, Jessica A1 - Gonzalez-Ortega, Itxaso A1 - MacDowell, Karina A1 - Zorrilla, Iñaki A1 - López, María Purificación A1 - Courtet, Philippe A1 - Gabilondo, Andrea A1 - Martinez-Cengotitabengoa, Mónica A1 - Leza, Juan Carlos A1 - Saiz, Pilar A1 - Gonzalez-Pinto, Ana SP - ePub EP - ePub VL - ePub IS - ePub N2 - OBJECTIVES: To explore the link between cytokines and suicide attempts and their relationship with the psychological aspects of this complex multifactorial phenomenon.

METHODS: 96 participants, including 20 patients with a recent suicide attempt and diagnosis of Major Depression Disorder (MDD), 33 MDD patients with a lifetime history of suicide attempt, 23 non-attempter MDD patients, and 20 healthy controls underwent an assessment on depressive symptoms, global functioning, aggressive behaviour, presence of abuse and attention performance. Additionally, all participants had a blood extraction for IL-2, IL2-R, IL-4, IL-6, and TNF-α plasma levels analysis.

RESULTS: IL-6 levels were significantly different across groups (F(3,89)=3.690; p = 0.015), with higher concentrations in both recent (p = 0.04) and distant (p = 0.015) attempt in comparison to MDD non-attempters. IL-6 was associated with adult physical abuse (B = 2.591; p = 0.021), lower global functioning score (B = -0.512; p = 0.011), and poorer performance on attention (B = -0.897; p = 0.011).

CONCLUSIONS: Recent and distant suicidal behaviour is associated with elevated IL-6 levels, which may be influenced by stressful and traumatic experiences. Elevated concentrations of IL-6 could have a negative impact on attention, increasing suicide risk. More research is needed to clarify the role of cytokines in suicide-related features to explore novel treatments and more effective preventive interventions.

Language: en

LA - en SN - 1562-2975 UR - http://dx.doi.org/10.1080/15622975.2021.1988703 ID - ref1 ER -