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  • Title: Sex- and estrous cycle-related differences in the effects of acute antipsychotic drug administration on neurotensin-containing neurons in the rat brain.
    Author: Kinkead B, Lorch SM, Owens MJ, Nemeroff CB.
    Journal: J Pharmacol Exp Ther; 2000 Oct; 295(1):205-11. PubMed ID: 10991980.
    Abstract:
    The effects of a single injection of haloperidol (2.0 mg/kg), a typical antipsychotic drug, on neurotensin (NT) concentrations and NT/neuromedin N (NT/NN) mRNA expression in adult female and male rats were examined. There were significant estrous cycle stage-related differences in both NT concentrations and NT/NN mRNA expression in female control rats. Although acute administration of haloperidol increased NT concentrations and NT/NN mRNA expression in the caudate/putamen and nucleus accumbens of both male and female rats, haloperidol did not increase NT/NN mRNA expression during diestrus 2 or NT concentrations during proestrus in the nucleus accumbens of female rats. These results indicate the presence of both sex- and estrous cycle-related differences in the regulation of NT-containing neurons and in the effects of antipsychotic drug administration on the NT system of the rat brain.
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