Abstract：
:Eating high-fat chow can modify the effects of drugs acting directly or indirectly on dopamine systems and repeated intermittent drug administration can markedly increase sensitivity (i.e., sensitization) to the behavioral effects of indirect-acting dopamine receptor agonists (e.g., methamphetamine). This study examined whether eating high-fat chow alters the sensitivity of male Sprague Dawley rats to the locomotor stimulating effects of acute or repeated administration of methamphetamine. The acute effects of methamphetamine on locomotion were not different between rats (n=6/group) eating high-fat or standard chow for 1 or 4 weeks. Sensitivity to the effects of methamphetamine (0.1-10mg/kg, i.p.) increased progressively across 4 once per week tests; this sensitization developed more rapidly and to a greater extent in rats eating high-fat chow as compared with rats eating standard chow. Thus, while eating high-fat chow does not appear to alter sensitivity of rats to acutely-administered methamphetamine, it significantly increases the sensitization that develops to repeated intermittent administration of methamphetamine. These data suggest that eating certain foods influences the development of sensitization to drugs acting on dopamine systems.
journal_name
Eur J Pharmacoljournal_title
European journal of pharmacologyauthors
McGuire BA,Baladi MG,France CPdoi
10.1016/j.ejphar.2011.02.027subject
Has Abstractpub_date
2011-05-11 00:00:00pages
156-9issue
2-3eissn
0014-2999issn
1879-0712pii
S0014-2999(11)00212-3journal_volume
658pub_type
杂志文章abstract：:Dextromethorphan which is an active ingredient in many cough medicines has been previously shown to potentiate amnesic effect of morphine in rats. However, the effect of dextromethorphan, that is also a noncompetitive N-methyl-D-aspartate (NMDA) receptor antagonist, in combination with morphine on hippocampus-based lo...
journal_title：European journal of pharmacology
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journal_title：European journal of pharmacology
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journal_title：European journal of pharmacology
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journal_title：European journal of pharmacology
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journal_title：European journal of pharmacology
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journal_title：European journal of pharmacology
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journal_title：European journal of pharmacology
pub_type： 杂志文章
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journal_title：European journal of pharmacology
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journal_title：European journal of pharmacology
pub_type： 杂志文章
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journal_title：European journal of pharmacology
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journal_title：European journal of pharmacology
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journal_title：European journal of pharmacology
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journal_title：European journal of pharmacology
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journal_title：European journal of pharmacology
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更新日期：2002-06-20 00:00:00
