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Related Experiment Videos

Apomorphine increases ethanol discrimination.

M D Schechter

    Pharmacology, Biochemistry, and Behavior
    |February 1, 1985
    PubMed
    Summary
    This summary is machine-generated.

    Apomorphine, a dopamine agonist, enhanced rats' ability to distinguish ethanol effects. This suggests potential therapeutic applications for dopamine-related treatments in alcoholism.

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    Area of Science:

    • Neuroscience
    • Pharmacology
    • Behavioral Science

    Background:

    • Ethanol's discriminative stimulus properties are key to understanding its effects.
    • Dopaminergic systems are implicated in substance use disorders.

    Purpose of the Study:

    • To investigate the effects of apomorphine on ethanol discrimination in rats.
    • To explore the role of dopaminergic pathways in ethanol's effects.

    Main Methods:

    • Rats were trained on a two-lever operant task to discriminate ethanol from saline.
    • Dose-response curves for ethanol discrimination were established.
    • The effects of apomorphine pretreatment on ethanol discrimination were assessed.

    Main Results:

    Related Experiment Videos

  • Ethanol produced a dose-dependent decrease in discriminative performance (ED50 = 372 mg/kg).
  • Apomorphine (0.16 mg/kg) pretreatment shifted the ethanol dose-response curve leftward (ED50 = 232 mg/kg), enhancing discrimination.
  • The combination generated a parallel dose-response curve, indicating a potentiation of ethanol's discriminative effects.

    • Conclusions:

    • Apomorphine significantly potentiates the discriminative effects of ethanol in rats.
    • These findings support the involvement of dopaminergic systems in ethanol's stimulus properties.
    • Apomorphine's effects may have implications for understanding and treating alcoholism.