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GABA modulation of cocaine self-administration
1Department of Physiology and Pharmacology, Wake Forest University School of Medicine, Winston-Salem, North Carolina 27157-1083, USA. dcsrobts@wfubmc.edu
Annals of the New York Academy of Sciences
|July 27, 2000
Summary
Baclofen, a GABA compound, significantly reduces cocaine self-administration. Its effectiveness in reducing cocaine use depends on the drug dose and reinforcement schedule, impacting clinical applications.
Area of Science:
- Neuroscience
- Pharmacology
- Addiction Research
Background:
- Gamma-aminobutyric acid (GABA) compounds show potential for modulating cocaine reinforcement.
- GABA-B receptors are implicated in the neurobiological pathways of drug addiction.
Purpose of the Study:
- To review studies investigating the effects of the GABA-B agonist baclofen on cocaine self-administration.
- To analyze how different reinforcement schedules influence baclofen's efficacy.
- To assess baclofen's potential as a therapeutic agent for cocaine use disorder.
Main Methods:
- Systematic review of preclinical studies examining baclofen's impact on cocaine self-administration.
- Analysis of data across various reinforcement schedules (e.g., fixed-ratio, progressive-ratio).
- Evaluation of cocaine unit injection dose as a critical variable.
Main Results:
- Baclofen administration led to a significant reduction in cocaine self-administration.
- This reduction was not attributable to general behavioral impairment.
- Baclofen's effect was dose-dependent concerning cocaine unit injection and schedule requirements.
Conclusions:
- Baclofen demonstrates considerable potential in reducing cocaine-seeking behavior.
- Clinical efficacy of baclofen for cocaine use disorder may be influenced by cocaine availability and cost.
- Further research is warranted to optimize baclofen-based therapeutic strategies.