期刊
WORLD JOURNAL OF BIOLOGICAL PSYCHIATRY
卷 16, 期 4, 页码 261-271出版社
TAYLOR & FRANCIS LTD
DOI: 10.3109/15622975.2014.1000374
关键词
suicide attempted; RNA editing; serotonin 2C receptor; stressful events; risk factors
类别
资金
- Ministry of Education, Science and Technological Development, Republic of Serbia [173016]
Objectives. Adenosine to inosine RNA editing, serotonin 2C receptor (HTR2C), and stressful life events (SLEs) have all been implicated in suicidal behaviour. We examined the main and moderating effects of RNA editing (ADAR, ADARB1) and HTR2C genes, childhood trauma (CT), recent SLEs and psychiatric disorders as contributors to suicide attempt (SA) vulnerability. Methods. Study included 165 suicide attempters and 188 suicide non-attempters, all diagnosed with one of major psychiatric disorders. CT and recent SLEs were assessed using Early Trauma Inventory-Self Report and List of Threatening Experiences Questionnaire, respectively. Selected ADAR and ADARB1 tag-variants, and HTR2C rs6318 were pre-screened for association with SA, while generalized linear models and backward selection were applied to identify individual and interacting SA risk factors. Results. ADARB1 rs9983925 and rs4819035 and HTR2C rs6318 were associated with SA. The best minimal model found emotional abuse, recent SLEs, rs9983925 and rs6318 as independent SA risk factors, and general traumas as a factor moderating the effect of psychiatric disorders and emotional abuse. Conclusions. SA vulnerability in psychiatric patients is related to the joint effect of ADARB1 and HTR2C variants, the existing mood disorder and the cumulative exposures to a various childhood and recent stressful experiences.
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