Linked Life Data

9050080

Source:http://linkedlifedata.com/resource/pubmed/id/9050080

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1997-5-1
pubmed:abstractText
Tobacco smoking behavior is reinforced by nicotine intake, but there has been little human research examining self-administration of nicotine per se, isolated from tobacco. In this study, 10 smokers (5 men, 5 women) who wanted to quit smoking sampled 0 (placebo), 0.75, and 1.5 ug/kg/spray nicotine via nasal spray during separate lab sessions before engaging in a free choice session, involving ad lib access to all three spray doses. Subjects also ad lib smoked during another session. For the group as a whole, neither nicotine spray dose was self-administered significantly more than placebo during the free choice session, suggesting low abuse potential. However, 4 of 10 subjects self-administered 1.5 ug/kg/spray on more than 50% of all sprays (vs. 33% chance) and were designated nicotine "choosers," while the others were "nonchoosers." Choosers responded to initial nicotine spray exposure during sampling sessions with greater positive subjective effects (similar to their responses to tobacco smoking), smoked more during the ad lib smoking session (i.e., self-administered more nicotine via tobacco smoking), and tended to be more heavily dependent smokers. They did not report greater withdrawal relief or less aversive effects from nicotine, suggesting their greater nicotine choice reflected greater positive reinforcement rather than negative reinforcement. These results are consistent with the few existing studies demonstrating that acute nicotine intake per se, in the absence of tobacco, may be reinforcing in some smokers.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0091-3057
pubmed:author
pubmed:issnType
Print
pubmed:volume
56
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
235-41
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
Acute reinforcing effects of low-dose nicotine nasal spray in humans.
pubmed:affiliation
Department of Psychiatry, University of Pittsburgh, PA 15213, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.