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Human Genetics01:28

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Human genetics provides a profound framework for understanding the interplay between genetic predispositions and human psychology. At the heart of this discipline lies the study of how genes influence physical traits, behaviors, and susceptibility to diseases. Each person carries a unique genetic code that subtly or significantly shapes their psychological and behavioral landscape.
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The relevance of cytochrome P450 polymorphism in forensic medicine and akathisia-related violence and suicide.

Journal of forensic and legal medicine·2016
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Formation of Covalent DNA Adducts by Enzymatically Activated Carcinogens and Drugs In Vitro and Their Determination by 32P-postlabeling
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Psychoactive Medication, Violence, and Variant Alleles for Cytochrome P450 Genes.

Selma J M Eikelenboom-Schieveld1, James C Fogleman2

  • 1Independent Forensic Services LLC, 32796 Edward Dr., Conifer, CO 80433, USA.

Journal of Personalized Medicine
|June 2, 2021
PubMed
Summary

Psychoactive medications can cause adverse reactions like depression or violence. Genetic variations in cytochrome P450 enzymes may increase risks when combined with these drugs, influencing emotional states and violent behavior.

Keywords:
CYP450 genotypeSSRIsaggressive behaviorphenoconversionpsychotropic drugsvariant alleles

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Area of Science:

  • Pharmacogenomics
  • Neuroscience
  • Clinical Psychology

Background:

  • Physicians have long observed paradoxical adverse reactions to psychoactive medications since the 1950s.
  • These reactions include depression, mood disorder exacerbation, and extreme violence.
  • Cytochrome P450 enzymes are crucial for drug metabolism, and their interactions with medications are hypothesized to cause these effects.

Purpose of the Study:

  • To investigate the statistical associations between cytochrome P450 (CYP450) variant alleles, psychoactive medication use, and violent behavior.
  • To identify risk factors contributing to altered emotional states and violent acts.

Main Methods:

  • A case-control study comparing 55 individuals with violent behavior to 58 controls without a history of violence.
  • Genetic testing for CYP450 variant alleles (CYP2B6, CYP2C8, CYP2C9, CYP2C19, CYP2D6, CYP3A4).
  • Statistical analysis of demographic data, medication information, and potential drug-gene and drug-drug-gene interactions.

Main Results:

  • Four significant risk factors were identified for developing altered emotional states and/or violent behavior.
  • An association was found between the use of prescription psychoactive medications (especially antidepressants) and the presence of variant CYP450 alleles.
  • This combination was linked to altered emotional states or acts of violence.

Conclusions:

  • Variant alleles in CYP450 genes, in conjunction with psychoactive medications, are associated with adverse emotional and behavioral outcomes.
  • Understanding these drug-gene interactions is critical for predicting and potentially preventing severe adverse reactions to psychiatric medications.