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Dysregulated Gene Expression: A Candidate Mechanism for Anxiety Disorders
Dimitri Traenkner1, Mary Steinmann2
1Department of Neurobiology, School of Medicine, University of Utah, Salt Lake City, UT 84112, USA.
Journal of Psychiatry and Brain Science
|July 21, 2025
Summary
Genetics plays a role in anxiety disorders, but common gene variants explain little. New research suggests gene-regulatory elements may alter gene expression, impacting anxiety susceptibility and offering new treatment targets.
Area of Science:
- Neuroscience
- Genetics
- Psychiatry
Background:
- Anxiety disorders are common and severe mental illnesses.
- Genetics contributes to anxiety susceptibility, often through polygenic inheritance involving multiple gene variants.
- Genome-wide association studies (GWAS) have identified anxiety-related genetic loci, but these explain limited heritability.
Purpose of the Study:
- To explore the role of gene regulation in the genetic architecture of anxiety disorders.
- To review recent advances in understanding how gene-regulatory elements influence anxiety.
- To identify potential new avenues for anxiety disorder diagnosis and treatment.
Main Methods:
- Review of recent scientific literature on genetics and anxiety disorders.
- Analysis of findings from genome-wide association studies (GWAS).
- Examination of the role of non-coding DNA and gene-regulatory elements.
Main Results:
- Many GWAS hits for anxiety disorders are located in non-coding regions with gene-regulatory functions.
- Altered expression of genes due to disrupted regulatory elements may contribute to anxiety susceptibility.
- These regulatory changes could subtly affect neuronal signaling and stress-response pathways.
Conclusions:
- Gene-regulatory elements are a promising area for understanding the genetic basis of anxiety disorders.
- Investigating gene regulation offers potential for developing targeted diagnostic and therapeutic strategies.
- Understanding the genetic architecture of anxiety disorders is advancing through the study of gene regulation.
Keywords:
Genome-Wide Association Studies (GWAS)anxiety disorderscis-regulatory elementscomorbiditydysregulated gene expressionepigeneticsgene regulationheritabilityneurobiological mechanismspolygenic traitsMore Related Videos
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