کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9428991 | 1297023 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Aripiprazole increases dopamine but not noradrenaline and serotonin levels in the mouse prefrontal cortex
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علم عصب شناسی
علوم اعصاب (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Aripiprazole, a novel atypical antipsychotic drug, can significantly increase dopamine (DA) levels in the prefrontal cortex of rats, but only at low doses below 1Â mg/kg [Z. Li, J. Ichikawa, J. Dai, H.Y. Meltzer, Aripiprazole, a novel antipsychotic drug, preferentially increases dopamine release in the prefrontal cortex and hippocampus in rat brain, Eur. J. Pharmacol. 493 (2004) 75-83]. The aim of the present work was to test the effect of aripiprazole (0, 0.1, 0.3, 3 and 30Â mg/kg, i.p.) on extracellular levels of monoamines in the prefrontal cortex of freely moving C57BL/6J mice. Concurrent horizontal locomotor activity was also assessed. Aripiprazole produced a significant increase in dialysate DA levels after the administration of a low dose of 0.3Â mg/kg. Lower (0.1Â mg/kg) or higher (3 and 30Â mg/kg) doses failed to affect extracellular levels of DA. In addition, none of the doses tested in the present study produced significant changes in extracellular levels of noradrenaline (NA) and serotonin (5-HT). For the sake of comparison, clozapine (0, 3 and 10Â mg/kg, s.c.) was also tested under similar conditions. Clozapine produced a dose-dependent increase in both dialysate DA and NA levels without affecting extracellular 5-HT. Locomotor activity was significantly decreased by both clozapine and aripiprazole. These data further support the hypothesis that selective activation of dopaminergic neurotransmission in the prefrontal cortex may contribute to the therapeutic efficacy of aripiprazole.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Neuroscience Letters - Volume 387, Issue 3, 28 October 2005, Pages 157-161
Journal: Neuroscience Letters - Volume 387, Issue 3, 28 October 2005, Pages 157-161
نویسندگان
Alessandro Zocchi, Daniela Fabbri, Christian A. Heidbreder,