Psychopharmacology of Tobacco and Alcohol Comorbidity

A Review of Current Evidence

Research output: Contribution to journalArticle

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Abstract

Purpose of the Review Comorbidity of alcohol and tobacco
use is highly prevalent and may exacerbate the health effects
of either substance alone. However, the mechanisms underlying
this comorbidity are not well understood. This review will
examine the evidence for shared neurobiological mechanisms
of alcohol and nicotine comorbidity and experimental studies
of the behavioural consequences of these interactions.
Recent Findings Studies examining the shared neurobiology of
alcohol and nicotine have identified twomainmechanisms of comorbidity:
(1) cross-reinforcement via the mesolimbic dopamine
pathway and (2) cross-tolerance via shared genetic and nAChR
interaction. Animal and human psychopharmacological studies
demonstrate support for these two mechanisms of comorbidity.
Summary Human behavioural studies indicate that (1) alcohol
and tobacco potentiate each other’s rewarding effects and (2)
nicotinereduces the sedativeandintoxicationeffects of alcohol.
Together, these findings provide a strong evidence base to support
the role of the cross-reinforcement and cross-tolerance as
mechanismsunderlyingthecomorbidityof alcoholandtobacco
use. Methodological concerns in the literature and recommendations
for future studies are discussed alongside implications
for treatment of comorbid alcohol and tobacco use.
Original languageEnglish
Pages (from-to)25-34
JournalCurrent Addiction Reports
Volume4
Issue number1
Early online date18 Feb 2017
DOIs
Publication statusPublished - Mar 2017

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Psychopharmacology
Tobacco
Comorbidity
Alcohols
Tobacco Use
Nicotine
Neurobiology
Dopamine
Health

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Psychopharmacology of Tobacco and Alcohol Comorbidity : A Review of Current Evidence. / Adams, Sally.

In: Current Addiction Reports, Vol. 4, No. 1, 03.2017, p. 25-34.

Research output: Contribution to journalArticle

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