Nicotine enhances the expression of a sucrose or cocaine conditioned place preference in adult male rats
Identifieur interne : 002707 ( Ncbi/Curation ); précédent : 002706; suivant : 002708Nicotine enhances the expression of a sucrose or cocaine conditioned place preference in adult male rats
Auteurs : Deanne M. Buffalari [États-Unis] ; Nana Yaa A. Marfo [États-Unis] ; Tracy T. Smith [États-Unis] ; Melissa E. Levin ; Matthew T. Weaver [États-Unis] ; Edda Thiels [États-Unis] ; Alan F. Sved [États-Unis] ; Eric C. Donny [États-Unis]Source :
- Pharmacology, biochemistry, and behavior [ 0091-3057 ] ; 2014.
Descripteurs français
- KwdFr :
- MESH :
- administration et posologie : Cocaïne, Saccharose.
- pharmacologie : Nicotine.
- Animaux, Conditionnement classique, Mâle, Rat Sprague-Dawley, Rats.
English descriptors
- KwdEn :
- MESH :
- chemical , administration & dosage : Cocaine, Sucrose.
- chemical , pharmacology : Nicotine.
- Animals, Conditioning, Classical, Male, Rats, Rats, Sprague-Dawley.
Abstract
Nicotine has been shown to enhance the motivational properties of non-nicotine stimuli. This reinforcement-enhancing property of nicotine has the potential to promote the use of other illicit substances as well as maladaptive patterns of food intake. Therefore, the current study aimed to examine whether nicotine enhances preference for contexts paired with cocaine or sucrose utilizing a place conditioning procedure. Separate groups of adult male rats were administered sucrose or cocaine in one of two compartments of a standard CPP chamber on four consecutive days. Preference was then assessed following no injection, a single subcutaneous (s.c.) injection of nicotine, and a s.c. saline injection. Animals preferred the chamber paired with either sucrose or cocaine, as evident from an increased time spent in the paired chamber compared to baseline. Nicotine further increased the time spent in the sucrose- or cocaine-paired chamber, consistent with a reinforcement-enhancement effect. Previous results demonstrate an interaction between nicotine and intake of other drugs or food. The present findings provide an additional mechanism that may underlie these effects and which may have implications for drug dependence and obesity.
Url:
DOI: 10.1016/j.pbb.2014.06.013
PubMed: 24967870
PubMed Central: 4527043
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PMC:4527043Le document en format XML
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<term>Cocaine (administration & dosage)</term>
<term>Conditioning, Classical</term>
<term>Male</term>
<term>Nicotine (pharmacology)</term>
<term>Rats</term>
<term>Rats, Sprague-Dawley</term>
<term>Sucrose (administration & dosage)</term>
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<term>Nicotine (pharmacologie)</term>
<term>Rat Sprague-Dawley</term>
<term>Rats</term>
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<keywords scheme="MESH" qualifier="administration et posologie" xml:lang="fr"><term>Cocaïne</term>
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<front><div type="abstract" xml:lang="en"><p id="P2">Nicotine has been shown to enhance the motivational properties of non-nicotine stimuli. This reinforcement-enhancing property of nicotine has the potential to promote the use of other illicit substances as well as maladaptive patterns of food intake. Therefore, the current study aimed to examine whether nicotine enhances preference for contexts paired with cocaine or sucrose utilizing a place conditioning procedure. Separate groups of adult male rats were administered sucrose or cocaine in one of two compartments of a standard CPP chamber on four consecutive days. Preference was then assessed following no injection, a single subcutaneous (s.c.) injection of nicotine, and a s.c. saline injection. Animals preferred the chamber paired with either sucrose or cocaine, as evident from an increased time spent in the paired chamber compared to baseline. Nicotine further increased the time spent in the sucrose- or cocaine-paired chamber, consistent with a reinforcement-enhancement effect. Previous results demonstrate an interaction between nicotine and intake of other drugs or food. The present findings provide an additional mechanism that may underlie these effects and which may have implications for drug dependence and obesity.</p>
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