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Updated: Mar 31, 2026
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The Resident-intruder Paradigm: A Standardized Test for Aggression, Violence and Social Stress
Published on: July 4, 2013
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Epigenome-Wide Association Study of Aggressive Behavior.
Jenny van Dongen1, Michel G Nivard1, Bart M L Baselmans1
1Department of Biological Psychology,VU Amsterdam,Amsterdam,The Netherlands.
Summary
This epigenome-wide association study links DNA methylation patterns to aggressive behavior. Findings highlight potential epigenetic mechanisms influencing aggression, particularly in central nervous system-related genes.
Area of Science:
- Behavioral Genetics
- Epigenetics
- Neuroscience
Background:
- Aggressive behavior has significant genetic and environmental components.
- Epigenetic mechanisms, like DNA methylation, are crucial for gene expression regulation.
- DNA methylation may mediate the interplay between genes and environment in complex traits.
Purpose of the Study:
- To conduct an epigenome-wide association study (EWAS) identifying DNA methylation sites associated with aggressive behavior.
- To investigate DNA methylation patterns in relation to aggression using a large cohort and discordant monozygotic twin pairs.
Main Methods:
- Epigenome-wide association study (EWAS) on 2,029 participants from the Netherlands Twin Register.
- DNA methylation measured in whole blood using the Illumina HM450k array.
- Association analyses in the full cohort and in 20 monozygotic twin pairs discordant for aggression.
Main Results:
- Top associated methylation sites identified at cg01792876 (TRPS1) and cg06092953 (PARD6G-AS1) in the full cohort.
- Significant methylation sites also found in discordant monozygotic twins, including cg21557159 (RAB39), cg08648367 (SIGLEC10), and cg14212412 (PREP).
- Gene ontology analysis revealed enrichment for central nervous system categories and promoter regions.
Conclusions:
- DNA methylation in peripheral tissues is associated with aggressive behavior.
- Epigenetic modifications may play a role in the etiology of aggression.
- Findings provide insights into the molecular mechanisms underlying aggressive behavior.
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