کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9416087 | 1614327 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of 3,4-methylendioxymethamphetamine (MDMA, “ecstasy”) on dopamine transmission in the nucleus accumbens shell and core
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علم عصب شناسی
علوم اعصاب (عمومی)
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چکیده انگلیسی
It is known that most of drugs abused by humans preferentially stimulate dopamine transmission in the shell subdivision of the nucleus accumbens as compared to the core. The aim of the present study was to evaluate whether this applies also to intravenous 3,4-methylendioxymethamphetamine (MDMA, “ecstasy”) administered at doses that sustain self-administration behavior in rats. The effect of 0.32, 0.64, 1.0, 2.0 and 3.2 mg/kg i.v. of MDMA on dopamine transmission in the nucleus accumbens shell and core was studied in freely moving rats by means of dual probe microdialysis. MDMA dose-dependently stimulated dopamine transmission both in the shell and in the core but the increase in the shell was more pronounced compared to the core at doses of 0.64, 1.0 and 2.0 mg/kg. The increase of dialysate dopamine obtained after 0.32 mg/kg and after 3.2 mg/kg was not significantly different in the shell compared to the core of nucleus accumbens. This study extends to MDMA the property of other drugs of abuse to increase preferentially nucleus accumbens shell dopamine.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Brain Research - Volume 1055, Issues 1â2, 7 September 2005, Pages 143-148
Journal: Brain Research - Volume 1055, Issues 1â2, 7 September 2005, Pages 143-148
نویسندگان
Cristina Cadoni, Marcello Solinas, Augusta Pisanu, Gerald Zernig, Elio Acquas, Gaetano Di Chiara,