Title : Repeated amphetamine administration outside the home cage enhances drug-induced Fos expression in rat nucleus accumbens.

Pub. Date : 2007 Dec 28

PMID : 17720257






7 Functional Relationships(s)
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1 Repeated amphetamine administration outside the home cage enhances drug-induced Fos expression in rat nucleus accumbens. Amphetamine Fos proto-oncogene, AP-1 transcription factor subunit Rattus norvegicus
2 Induction of the immediate early gene protein product Fos has been used extensively to assess neural activation in the striatum after repeated amphetamine administration to rats in their home cages. Amphetamine Fos proto-oncogene, AP-1 transcription factor subunit Rattus norvegicus
3 We determined the dose-response relationship for amphetamine-induced psychomotor activity and Fos expression in nucleus accumbens and caudate-putamen 1 week after repeated administration of amphetamine or saline in locomotor activity chambers. Amphetamine Fos proto-oncogene, AP-1 transcription factor subunit Rattus norvegicus
4 We determined the dose-response relationship for amphetamine-induced psychomotor activity and Fos expression in nucleus accumbens and caudate-putamen 1 week after repeated administration of amphetamine or saline in locomotor activity chambers. Amphetamine Fos proto-oncogene, AP-1 transcription factor subunit Rattus norvegicus
5 Repeated administration of amphetamine enhanced amphetamine-induced locomotor activity and stereotypy and Fos expression in nucleus accumbens, but not in caudate-putamen. Amphetamine Fos proto-oncogene, AP-1 transcription factor subunit Rattus norvegicus
6 In comparison, levels of Fos expression induced by 1mg/kg amphetamine were not altered in nucleus accumbens or caudate-putamen by repeated amphetamine administration in the home cage. Amphetamine Fos proto-oncogene, AP-1 transcription factor subunit Rattus norvegicus
7 Furthermore, repeated amphetamine administration increased drug-induced Fos expression in enkephalin-positive, but not enkephalin-negative, neurons in nucleus accumbens. Amphetamine Fos proto-oncogene, AP-1 transcription factor subunit Rattus norvegicus