TY - JOUR PY - 2020// TI - The role of the 5-HTTLPR polymorphism in acquired capability for suicide JO - Suicide and life-threatening behavior A1 - Wannemueller, André A1 - Forkmann, Thomas A1 - Glaesmer, Heide A1 - Juckel, Georg A1 - Paashaus, Laura A1 - Rath, Dajana A1 - Schönfelder, Antje A1 - Moser, Dirk A1 - Kumsta, Robert A1 - Teismann, Tobias SP - ePub EP - ePub VL - ePub IS - ePub N2 - OBJECTIVE: According to the Interpersonal Psychological Theory of Suicide, capability for suicide comprises two dimensions: fearlessness about death and elevated pain tolerance. The short (S) allelic variant of the serotonin transporter gene-linked polymorphic region (5-HTTLPR) has repeatedly been associated with more violent and lethal suicide methods and lethality of suicide attempts. The current study aimed to investigate whether 5-HTTLPR allelic variants are associated with fearlessness about death and pain tolerance/persistence and whether it moderates the relationship between childhood maltreatment and acquired capability for suicide. METHOD: A cohort of 208 inpatients hospitalized due to a recent suicide attempt or severe suicidal ideation was genotyped for the 5-HTTLPR and assessed for childhood maltreatment. Subjective pain tolerance and fearlessness about death as well as objective pain persistence was assessed using a pressure algometer. RESULTS: Fearlessness about death, pain tolerance, and pain persistence did not differ between 5-HTTLPR genotypes. However, there was a significant correlation between self-reported childhood maltreatment and fearlessness about death that emerged exclusively in homozygous S-allele carriers. CONCLUSION: Results suggest that there are no "high-risk"-alleles that generally increase capability for suicide. However, in terms of future suicide-related behaviors exposure to childhood maltreatment events could exert a particularly negative influence on homozygous S-allele carriers by increasing their fearlessness about death.

Language: en

LA - en SN - 0363-0234 UR - http://dx.doi.org/10.1111/sltb.12660 ID - ref1 ER -