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Related Experiment Videos

Genes in drug abuse.

M J Kuhar1, A Joyce, G Dominguez

  • 1Yerkes Regional Primate Research Center of Emory University, 954 Gatewood Road NE, 30329, Atlanta GA, USA. mkuhar@rmy.emory.edu

Drug and Alcohol Dependence
|April 11, 2001
PubMed
Summary

Genome projects are identifying genes with altered expression linked to drug abuse. Understanding these gene products, like CART, could inform public health policy on addiction vulnerability.

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Area of Science:

  • Neuroscience
  • Genetics
  • Pharmacology

Background:

  • Genome projects enable identification of gene expression changes associated with drug abuse.
  • Approximately 100 genes exhibit altered expression following drug administration.
  • New technologies like microarrays enhance the detection of gene expression alterations.

Purpose of the Study:

  • To determine the role and significance of gene products in drug abuse.
  • To establish a potential cause-effect relationship between specific genes and drug abuse vulnerability.
  • To explore the utility of novel genes, such as CART, in understanding drug abuse mechanisms.

Main Methods:

  • Utilizing genome-wide expression analysis to identify genes affected by drug administration.
  • Investigating the effects of psychostimulant drugs on gene expression, including the cocaine and amphetamine regulated transcript (CART).
  • Administering CART peptides to assess their effects in animal models.

Main Results:

  • Identification of around 100 genes with altered expression post-drug administration.
  • The cocaine and amphetamine regulated transcript (CART) gene product has been associated with drug abuse.
  • Injection of CART peptides into the ventral tegmental area induced psychostimulant-like effects.

Conclusions:

  • Gene expression changes are linked to drug abuse, with potential implications for understanding addiction.
  • The CART gene and its product serve as a relevant example of a gene associated with drug abuse.
  • Establishing a definitive link between specific genes and drug abuse vulnerability could significantly impact public health policy.

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