SAGE Journals Online
Advertisement
Sign In to gain access to subscriptions and/or personal tools.

 

Advanced Search

Journal Navigation

Journal Home

Subscriptions

Archive

Contact Us

Table of Contents

Advertisement

Sign In to gain access to subscriptions and/or personal tools.
Journal of Psychopharmacology
This Article
Right arrow Abstract Freely available
Right arrow Free Full Text (Free PDF) Free
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Add to Saved Citations
Right arrow Download to citation manager
Right arrowRequest Permissions
Right arrow Request Reprints
Right arrow Add to My Marked Citations
Citing Articles
Right arrow Citing Articles via Google Scholar
Right arrow Citing Articles via Scopus
Google Scholar
Right arrow Articles by Yonghui, L.
Right arrow Articles by Nan, S.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Yonghui, L.
Right arrow Articles by Nan, S.
Social Bookmarking
 Add to CiteULike   Add to Complore   Add to Connotea   Add to Del.icio.us   Add to Digg   Add to Reddit   Add to Technorati   Add to Twitter  
What's this?

Opposite effects of MK-801 on the expression of food and morphine-induced conditioned place preference in rats

Li Yonghui

Institute of Psychology, Chinese Academy of Sciences; Laboratory of Mental Health, Chinese Academy of Sciences; Graduate School of the Chinese Academy of Sciences Beijing, P.R. China, liyonghui{at}psych.ac.cn

Zheng Xigeng

Institute of Psychology, Chinese Academy of Sciences; Laboratory of Mental Health, Chinese Academy of Sciences Beijing, P.R. China

Bai Yunjing

Institute of Psychology, Chinese Academy of Sciences; Laboratory of Mental Health, Chinese Academy of Sciences; Graduate School of the Chinese Academy of Sciences Beijing, P.R. China

Yang Xiaoyan

Institute of Psychology, Chinese Academy of Sciences; Laboratory of Mental Health, Chinese Academy of Sciences Beijing, P.R. China

Sui Nan

Institute of Psychology, Chinese Academy of Sciences; Laboratory of Mental Health, Chinese Academy of Sciences Beijing, P.R. China, suin{at}psych.ac.cn

Behavioural studies have provided strong evidence for common substrates in the rewards of natural and addictive substances, but it is still unclear whether there is a common glutamatergic NMDA receptor mechanism involved in the processing of reward for both. The present study was designed to investigate the effects of MK-801 (0.1mg/kg) on the expression of place preference conditioned with food and morphine (5.0mg/kg) in rats. The data indicates that MK-801 potentiates the expression of food-induced conditioned place preference (CPP) but retards that of morphine CPP. It also demonstrates that the opposite effects of MK-801 on food and morphine CPP expression were caused neither by hyperactivity nor by the impairment of memory retrieval. These results suggest that MK-801 enhances food craving and inhibits morphine craving in rats, and that the roles of glutamatergic NMDA receptor mechanisms in the reward processing of natural reinforcers and addictive drugs may be dissociable.

Key Words: MK-801 • morphine • food • expression of CPP • craving

References

This version was published on January 1, 2006

Journal of Psychopharmacology, Vol. 20, No. 1, 40-46 (2006)
DOI: 10.1177/0269881105057250


Add to CiteULike CiteULike   Add to Complore Complore   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us   Add to Digg Digg   Add to Reddit Reddit   Add to Technorati Technorati   Add to Twitter Twitter    What's this?



This Article
Right arrow Abstract Freely available
Right arrow Free Full Text (Free PDF) Free
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Add to Saved Citations
Right arrow Download to citation manager
Right arrowRequest Permissions
Right arrow Request Reprints
Right arrow Add to My Marked Citations
Citing Articles
Right arrow Citing Articles via Google Scholar
Right arrow Citing Articles via Scopus
Google Scholar
Right arrow Articles by Yonghui, L.
Right arrow Articles by Nan, S.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Yonghui, L.
Right arrow Articles by Nan, S.
Social Bookmarking
 Add to CiteULike   Add to Complore   Add to Connotea   Add to Del.icio.us   Add to Digg   Add to Reddit   Add to Technorati   Add to Twitter  
What's this?

Advertisement