Abstract
Estrogen is thought to be involved in the pathophysiology of depression and suicidal behaviors. We studied gene variants of estrogen receptor alpha (rs827421, rs1913474, rs1801132, rs722207, rs974276 and rs910416) in 167 German suicide attempters (affective spectrum n = 107, schizophrenia spectrum n = 35, borderline personality disorder n = 25), 92 German individuals who committed suicide and 312 German healthy subjects. Single markers and haplotype analysis in relation to suicidal behaviors (suicide attempters/completers) did not reveal any significant association. These were also not associated with related features, such as violence or impulsivity of suicide attempt, State-Trait Anger Expression Inventory (STAXI) and Questionnaire for Measuring Factors of Aggression (FAF) scores. In conclusion, our study does not support the hypothesis that estrogen receptor alpha gene variants are major contributors to suicide or to anger- or aggression-related behaviors.
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