Violent aggression predicted by multiple pre-adult environmental hits

2018 | journal article; research paper. A publication with affiliation to the University of Göttingen.

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​Violent aggression predicted by multiple pre-adult environmental hits​
Mitjans, M.; Seidel, J.; Begemann, M. ; Bockhop, F.; Moya-Higueras, J.; Bansal, V. & Wesolowski, J. et al.​ (2018) 
Molecular psychiatry, pp. 1​-16​.​ DOI: 

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Mitjans, Marina; Seidel, Jan; Begemann, Martin ; Bockhop, Fabian; Moya-Higueras, Jorge; Bansal, Vikas; Wesolowski, Janina; Seelbach, Anna; Ibáñez, Manuel Ignacio; Kovacevic, Fatka; Duvar, Oguzhan; Fañanás, Lourdes; Wolf, Hannah-Ulrike; Ortet, Generós; Zwanzger, Peter; Klein, Verena; Lange, Ina; Tänzer, Andreas; Dudeck, Manuela; Penke, Lars ; van Elst, Ludger Tebartz; Bittner, Robert A; Schmidmeier, Richard; Freese, Roland; Müller-Isberner, Rüdiger; Wiltfang, Jens ; Bliesener, Thomas ; Bonn, Stefan ; Poustka, Luise ; Müller, Jürgen L. ; Arias, Bárbara; Ehrenreich, Hannelore 
Early exposure to negative environmental impact shapes individual behavior and potentially contributes to any mental disease. We reported previously that accumulated environmental risk markedly decreases age at schizophrenia onset. Follow-up of matched extreme group individuals (≤1 vs. ≥3 risks) unexpectedly revealed that high-risk subjects had >5 times greater probability of forensic hospitalization. In line with longstanding sociological theories, we hypothesized that risk accumulation before adulthood induces violent aggression and criminal conduct, independent of mental illness. We determined in 6 independent cohorts (4 schizophrenia and 2 general population samples) pre-adult risk exposure, comprising urbanicity, migration, physical and sexual abuse as primary, and cannabis or alcohol as secondary hits. All single hits by themselves were marginally associated with higher violent aggression. Most strikingly, however, their accumulation strongly predicted violent aggression (odds ratio 10.5). An epigenome-wide association scan to detect differential methylation of blood-derived DNA of selected extreme group individuals yielded overall negative results. Conversely, determination in peripheral blood mononuclear cells of histone-deacetylase1 mRNA as 'umbrella mediator' of epigenetic processes revealed an increase in the high-risk group, suggesting lasting epigenetic alterations. Together, we provide sound evidence of a disease-independent unfortunate relationship between well-defined pre-adult environmental hits and violent aggression, calling for more efficient prevention.
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Molecular psychiatry 
Sozialwissenschaftliche Fakultät ; Institut für Soziologie ; Professur für Interdisziplinäre kriminologische Forschung 



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