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Related Experiment Videos

Genetics of pathological gambling.

Angela Ibáñez1, Carlos Blanco, Ignacio Perez de Castro

  • 1Department of Psychiatry, Hospital Ramón y Cajal, Alcala University, Crta. Colmenar km. 9,1, 28034 Madrid, Spain. aic@tiscali.es

Journal of Gambling Studies
|March 15, 2003
PubMed
Summary

Genetic factors play a role in pathological gambling (PG), a behavioral addiction. Specific gene variants related to neurotransmitter systems are associated with PG, indicating a partial genetic influence.

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Area of Science:

  • Neuroscience
  • Genetics
  • Psychiatry

Background:

  • Pathological gambling (PG) is an impulse control disorder and a behavioral addiction.
  • Familial and twin studies suggest a genetic influence on PG development.
  • Biological factors like neurotransmitter dysfunction (serotonergic, noradrenergic, dopaminergic) are implicated in PG.

Purpose of the Study:

  • To investigate the role of genetic factors in the development of pathological gambling.
  • To identify specific gene variants associated with PG.
  • To explore potential gender-specific genetic contributions to PG.

Main Methods:

  • Utilized molecular genetic techniques to examine candidate genes.
  • Investigated allele variants of polymorphisms in dopamine receptor, serotonin transporter, and monoamine-oxidase A genes.

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  • Reviewed current findings on the genetics of PG.

    • Main Results:

    • Specific allele variants in candidate genes related to neurotransmitter systems are associated with PG.
    • Preliminary data suggest potential gender-specific genetic differences, requiring further research.
    • Genetic factors partially mediate the liability to pathological gambling.

    Conclusions:

    • Genetic factors contribute to the liability of pathological gambling.
    • Further research is needed to replicate findings and understand the influence of specific allelic variants.
    • Additional studies are required to substantiate gender-specific genetic contributions to PG.