کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6286374 | 1298066 | 2013 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Anticataleptic effects of 5-HT1B receptors in the globus pallidus
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علم عصب شناسی
علوم اعصاب (عمومی)
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چکیده انگلیسی
The globus pallidus occupies an important position in the indirect pathway of the basal ganglia. Being a monoamine neurotransmitter, 5-HT is involved in mediating many physiological functions and pathophysiological processes in several movement disorders. Morphological studies have revealed that the globus pallidus receives serotonergic innervation arising from the raphe nuclei, mainly the dorsal raphe nucleus. A high level of 5-HT and 5-HT1B receptors were detected in the globus pallidus. In the present study, bilateral microinjection of 5-HT or 5-HT1B receptor agonist, CP-93129, into the globus pallidus significantly alleviated the symptoms of rigidity caused by haloperidol. To further elucidate 5-HT1B receptor-induced anticatalepsy, in vivo extracellular recordings were performed to examine the effects of 5-HT1B receptor activation on the firing activity of the globus pallidus neurons under the presence of haloperidol. Micro-pressure ejection of 5-HT or CP-93129 increased the spontaneous firing rate of the pallidal neurons. Furthermore, by using immunohistochemistry, positive staining of 5-HT1B receptor was observed in the globus pallidus neurons. Taken together, the present findings provide evidence that activation of 5-HT1B receptor may exert anticataleptic effects by increasing the activity of pallidal neurons.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Neuroscience Research - Volume 77, Issue 3, November 2013, Pages 162-169
Journal: Neuroscience Research - Volume 77, Issue 3, November 2013, Pages 162-169
نویسندگان
Hua Wang, Xin-Yi Chen, Wen-Fang Chen, Yan Xue, Lei Wei, Lei Chen,