Comparative Study
doi: 10.1037//1064-1297.9.3.307.
Ketoconazole suppresses food restriction-induced increases in heroin self-administration in rats: sex differences
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- PMID: 11534541
- DOI: 10.1037//1064-1297.9.3.307
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Comparative Study
Ketoconazole suppresses food restriction-induced increases in heroin self-administration in rats: sex differences
Exp Clin Psychopharmacol.
2001 Aug.
Abstract
The effects of ketoconazole, an inhibitor of corticosterone synthesis, were examined during food satiation and food restriction in male and female rats to determine whether increases in heroin self-administration prompted by food restriction were due to a stress response. Females self-administered more heroin infusions than males under both feeding conditions. Food restriction increased heroin infusions by an average of 96% for both females and males. Ketoconazole suppressed the increase due to food restriction in females but not in males. Corticosterone reversed the effect of ketoconazole in a group of 8 females, suggesting an interaction between feeding conditions, sex, and the stress response in rats.
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