Document Detail


Whole tobacco smoke extracts to model tobacco dependence in animals.
MedLine Citation:
PMID:  25064817     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Smoking tobacco is highly addictive and a leading preventable cause of death. The main addictive constituent is nicotine; consequently it has been administered to laboratory animals to model tobacco dependence. Despite extensive use, this model might not best reflect the powerful nature of tobacco dependence because nicotine is a weak reinforcer, the pharmacology of smoke is complex and non-pharmacological factors have a critical role. These limitations have led researchers to expose animals to smoke via the inhalative route, or to administer aqueous smoke extracts to produce more representative models. The aim was to review the findings from molecular/behavioural studies comparing the effects of nicotine to tobacco/smoke extracts to determine whether the extracts produce a distinct model. Indeed, nicotine and tobacco extracts yielded differential effects, supporting the initiative to use extracts as a complement to nicotine. Of the behavioural tests, intravenous self-administration experiments most clearly revealed behavioural differences between nicotine and extracts. Thus, future applications for use of this behavioural model were proposed that could offer new insights into tobacco dependence.
Authors:
Katharine A Brennan; Murray Laugesen; Penelope Truman
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Publication Detail:
Type:  REVIEW     Date:  2014-7-23
Journal Detail:
Title:  Neuroscience and biobehavioral reviews     Volume:  -     ISSN:  1873-7528     ISO Abbreviation:  Neurosci Biobehav Rev     Publication Date:  2014 Jul 
Date Detail:
Created Date:  2014-7-29     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7806090     Medline TA:  Neurosci Biobehav Rev     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2014. Published by Elsevier Ltd.
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