Abstract：
:The conditioned taste aversion (CTA) is routinely used to assess the aversive consequences of anorexic agents, including potential pharmacological therapies for obesity. In a typical CTA paradigm, rats briefly sampling a novel tastant (e.g., saccharin) are acutely administered with toxin (e.g., lithium chloride, LiCl). After as few as one taste-toxin pairing, rats will reliably avoid the novel tastant. This paradigm is frequently used for the assessment of possible aversive consequences of drugs that are candidates for pharmacological therapies. The degree to which the drug supports development of a CTA is interpreted as an index of its aversive properties. Difficulties with previous work include the inability to assess affects on food intake and CTA simultaneously, particularly during chronic drug administration. We report here two novel CTA paradigms for the assessment of appetitive and aversive consequences of anorexic agents, simultaneously. In the first experiment, animals receive an intraoral infusion of a novel and highly palatable tastant immediately prior to administration of increasing doses of LiCl. In the second experiment, rats were implanted intraperitoneally with osmotic minipumps that chronically delivered a low dose of LiCl for 7 days. LiCl did not affect short or long term food intake in either experiment. However, LiCl did support the development of a CTA in both paradigms. These results suggest that both the appetitive and aversive consequences of anorexic agents can be assessed simultaneously during either acute or chronic drug administration.
journal_name
Physiol Behavjournal_title
Physiology & behaviorauthors
Benoit SC,Air EL,Wilmer K,Messerschmidt P,Hodge KM,Jones MB,Eckstein DM,McOsker CC,Seeley RJ,Woods SC,Sheldon RJdoi
10.1016/s0031-9384(03)00189-6subject
Has Abstractpub_date
2003-09-01 00:00:00pages
761-6issue
4-5eissn
0031-9384issn
1873-507Xpii
S0031938403001896journal_volume
79pub_type
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