کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
2565698 | 1128065 | 2008 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Calcium channel antagonists suppress cross-tolerance to the anxiogenic effects of d-amphetamine and nicotine in the mouse elevated plus maze test
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موضوعات مرتبط
علوم زیستی و بیوفناوری
علم عصب شناسی
روانپزشکی بیولوژیکی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The purpose of the current experiments was to examine the anxiety-related effects of repeated amphetamine and nicotine administration using the mouse elevated plus maze (EPM). d-amphetamine was administered daily for 8Â days (2Â mg/kg, i.p.). On the 9th day, mice were challenged with amphetamine (2Â mg/kg, i.p.) or nicotine (0.1Â mg/kg, s.c.), and were tested 30Â min after this last injection. Additionally, a distinct group of mice was pretreated with nicotine (0.1Â mg/kg, s.c., 6Â days). These mice were subjected to nicotine (0.1Â mg/kg, s.c.) or amphetamine (2Â mg/kg, i.p.) challenge on the seventh day to see if full crossover effects developed after the pretreatment of both psychostimulant drugs. Moreover, the L-type voltage-dependent calcium channel antagonists nimodipine (5 and 10Â mg/kg, i.p.), flunarizine (5 and 10Â mg/kg, i.p.), verapamil (5 and 10Â mg/kg, i.p.) and diltiazem (5 and 10Â mg/kg, i.p.) were injected prior to each injection of chronic d-amphetamine or nicotine. We observed cross-tolerance to the anxiogenic effects of d-amphetamine and nicotine that was blunted by a pretreatment with calcium channel blockers. Overall our findings imply that similar neural calcium-dependent mechanisms are involved in the anxiety-related responses to chronic amphetamine and nicotine injections. As anxiety seems to be an important factor for the development of psychostimulant dependence, the L-type VDCC antagonists can offer an interesting approach for the pharmacotherapy of addiction, including amphetamine and/or nicotine dependence.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Progress in Neuro-Psychopharmacology and Biological Psychiatry - Volume 32, Issue 1, 1 January 2008, Pages 54-61
Journal: Progress in Neuro-Psychopharmacology and Biological Psychiatry - Volume 32, Issue 1, 1 January 2008, Pages 54-61
نویسندگان
Grazyna Biala, Marta Kruk,