Cited by 99Neurotransmitter Receptor Influence on BehaviorSubstance Abuse Treatment and OutcomesNeuroscience and Neuropharmacology Research

Effects of β-adrenoceptor antagonists on alcohol drinking by alcohol-dependent rats

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Gilpin, Nicholas W., Koob, George F.·2010·Psychopharmacology

Abstract

Rationale Alcohol-dependent animals display enhanced stress responsivity, reward thresholds, and alcohol self-administration during alcohol withdrawal, and some of these aspects of alcohol dependence may be mediated by activation of brain norepinephrine (NE) systems.Objectives This study examined the effects of propranolol, a β-adrenoceptor antagonist, on operant alcohol-reinforced responding by alcohol-dependent and non-dependent rats.Methods Adult male Wistar rats were trained to respond for alcohol in an operant conditioning paradigm on fixed-ratio-1 (FR-1) and progressive ratio (PR) reinforcement schedules. Rats were either made dependent on alcohol via chronic intermittent (14 h ON/10 h OFF) alcohol vapor inhalation or were not exposed to alcohol vapor. Rats were tested for the effects of propranolol (0-10 mg/kg) or nadolol (0-20 mg/kg) on operant alcohol-reinforced responding at the time point corresponding to 6-8 h withdrawal in dependent animals.Results All doses of propranolol suppressed FR-1 operant alcohol-reinforced responding in alcohol-dependent rats, but only the highest dose suppressed FR-1 responding by controls. No dose of propranolol affected water responding. Nadolol did not affect operant behavior. Propranolol suppressed PR operant alcohol-reinforced responding across groups, an effect attributable to significant suppression of alcohol responding at the highest dose.Conclusions Following development of alcohol dependence, rats exhibit hypersensitivity to the suppressive effects of propranolol on operant alcohol-reinforced responding. This effect is mediated by central actions of the drug, is not attributable to motor effects, and may reflect activation of brain NE systems that contributes to withdrawal-induced negative emotional states and drives alcohol drinking in the dependent organism.

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Crossref · 10.1007/s00213-010-1967-8

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  • In dependent rats, the alpha1-adrenergic receptor antagonist prazosin selectively blocked the increase in drinking associated with acute withdrawal, and the beta-adrenergic receptor antagonist propranolol blocked the increase in drinking associated with acute withdrawal at doses that did not block nondependent drinking.

    “In dependent rats, the a 1 -adrenergic receptor antagonist prazosin selectively blocked the increase in drinking that was associated with acute withdrawal (Walker et al., 2008), and the b-adrenergic receptor antagonist propranolol blocked the increase in drinking that was associated with acute withdrawal in dependent rats at doses that did not block nondependent drinking (Gilpin and Koob, 2010).”

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Authors
Gilpin, N. W., & Koob, G. F.
Affiliations
Scripps Research Institute (US)
Corresponding author
Gilpin, Nicholas W.
Venue
Psychopharmacology
Published
2010-07-31
Volume
212
Issue
3
Pages
431-439
ISSN
  • 0033-3158 (ISSN-L)
  • 1432-2072
OpenAlex
W1983095834
Cited by
99
References
63
Citations by year
2026: 6 · 2025: 3 · 2024: 3 · 2023: 4 · 2022: 9 · 2021: 6 · 2020: 3 · 2019: 7 · 2018: 8 · 2017: 5 · 2016: 9 · 2015: 11 · 2014: 11 · 2013: 5 · 2012: 4
FWCI
1.81
Type
journal article
Language
en
Open access
Locations
  • Psychopharmacology (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institute on Alcohol Abuse and Alcoholism (R01AA008459, AA012602, AA008459, AA016436, F32AA016436, AA006420, P50AA006420, R37AA008459, R01AA012602, P60AA006420)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Health Sciences › Medicine › Epidemiology › Substance Abuse Treatment and Outcomes
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
alcoholism, beta-blockers, propranolol, nadolol, alcohol self-administration, alcohol withdrawal, noradrenergic system, progressive ratio schedule, fixed-ratio schedules, alcohol reward
MeSH terms
Adrenergic beta-Antagonists, Alcohol Drinking, Ethanol, Alcoholism, Animals, Behavior, Animal, Conditioning, Operant, Dose-Response Relationship, Drug, Male, Nadolol, Norepinephrine, Propranolol, Reinforcement Schedule, Reward, Self Administration, Substance Withdrawal Syndrome, Time Factors, Rats, Wistar, Rats

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