کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4353005 | 1298177 | 2008 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Neuroanatomical and neurochemical organization of projections from the central amygdaloid nucleus to the nucleus retroambiguus via the periaqueductal gray in the rat
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کلمات کلیدی
ECUNucleus of DarkschewitschBAOTNucleus retroambiguusNRAPLCOCxAbasomedial amygdaloid nucleuscuneate fasciculusexternal cuneate nucleusACOCPUOPTNSTDenPAGCeA - CEAPir - بیش از حدperiaqueductal gray - خاکستری پرآبیoptic tract - دستگاه نوریinferior olive - زیتون ناقصarea postrema - طبقه آخرpiriform cortex - قشر پریکومcuneate nucleus - هسته cuneatehypoglossal nucleus - هسته hypoglossaloculomotor nucleus - هسته oculomotoranterior cortical amygdaloid nucleus - هسته آمیگدالید قشر قشر قدامیbasolateral amygdaloid nucleus - هسته آمیگدولئید basolateralbed nucleus of the accessory olfactory tract - هسته تخت از دستگاه بویایی لوازم جانبیtrochlear nucleus - هسته ترچلرnucleus of the solitary tract - هسته دستگاه انفرادیlateral reticular nucleus - هسته رتیکال جانبیgracile nucleus - هسته شادposterolateral cortical amygdaloid nucleus - هسته قارچی مینا دیلوپیکNucleus ambiguous - هسته مبهم استcentral amygdaloid nucleus - هسته مرکزی amygdaloidmedial amygdaloid nucleus - هسته مرکزی آمیگدولیدdorsal motor nucleus of vagus - هسته موتور پشتی وحشیdorsal endopiriform nucleus - هسته ی endopiriform پشتیCaudate putamen - پاتامن Caudateinternal capsule - کپسول داخلیGlobus pallidus - گوی رنگ پریده، گلوبوس پالیدوس
موضوعات مرتبط
علوم زیستی و بیوفناوری
علم عصب شناسی
علوم اعصاب (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The periaqueductal gray (PAG)-nucleus retroambiguus (NRA) pathway has been known to be involved in the control of vocalization and sexual behavior. To know how the amygdaloid complex influences the PAG-NRA pathway, here we first examined the synaptic organization between the central amygdaloid nucleus (CeA) fibers and the PAG neurons that project to the NRA by using anterograde and retrograde tract-tracing techniques in the rat. After ipsilateral injections of biotinylated dextran amine (BDA) into the CeA and cholera toxin B subunit (CTb) into the NRA, the prominent overlapping distribution of BDA-labeled axon terminals and CTb-labeled neurons was found ipsilaterally in the lateral/ventrolateral PAG, where some of the BDA-labeled terminals made symmetrical synaptic contacts with somata and dendrites of the CTb-labeled neurons. After CTb injection into the lateral/ventrolateral PAG, CTb-labeled neurons were distributed mainly in the medial division of the CeA. After BDA injection into the lateral/ventrolateral PAG, BDA-labeled fibers were distributed mainly in and around the NRA within the medulla oblongata. Using a combined retrograde tracing and in situ hybridization technique, we further demonstrated that more than half of the CeA neurons labeled with Fluoro-Gold (FG) injected into the lateral/ventrolateral PAG were positive for glutamic acid decarboxylase 67 mRNA and that the vast majority of PAG neurons labeled with FG injected into the NRA expressed vesicular glutamate transporter 2 mRNA. The present results suggest that the glutamatergic PAG-NRA pathway is under the inhibitory influence of the GABAergic CeA neurons.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Neuroscience Research - Volume 62, Issue 4, December 2008, Pages 286-298
Journal: Neuroscience Research - Volume 62, Issue 4, December 2008, Pages 286-298
نویسندگان
Tatsuro Oka, Toshiko Tsumori, Shigefumi Yokota, Yukihiko Yasui,