کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6277124 | 1295748 | 2010 | 19 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Corticofugal direct projections to primary afferent neurons in the trigeminal mesencephalic nucleus of rats
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کلمات کلیدی
Fluorogoldsupratrigeminal nucleusJCSVMOJostrigeminal principal nucleusVMEsGCCaCgCorpus callosumPRLBDAPAGABCAGMPBSSCPMLFPBLINSCPUAGLCNFPBMsuperior cerebellar peduncle - اسب سواری مخچه بزرگphosphate buffer - بافر فسفاتlateral ventricle - بطن جانبیthird ventricle - بطن سومbiotinylated dextranamine - بیاتینیلد دکسترانامینgenu of the corpus callosum - جنس کوروس کولوزومMedial longitudinal fasciculus - فسیکولوس طولی متوسطCortex - قشرinfralimbic cortex - قشر infralimbicprimary somatosensory cortex - قشر اسموتیسنسوری اولیهOrbital cortex - قشر اوربیتالinsular cortex - قشر ساحلیAgranular insular cortex - قشر ساحلی AgranularGranular insular cortex - قشر ساقه غدهdysgranular insular cortex - قشر ساکن غده تیروئیدanterior cingulate cortex - قشر سینگولیت قدامی، کورتکس سینگولیت قدامیdorsal peduncular cortex - قشر پشتی پشتیprelimbic cortex - قشر پیش از قاعدگیSecondary somatosensory cortex - قشر کمخونی ثانویهcerebral aqueduct - قنادی مغزیlocus coeruleus - لوکوس سیرولئوسPeriaqueductal gray matter - ماده خاکستری پرایاکوداکتclaustrum - مانعavidin–biotin–peroxidase complex - مجتمع آویدین-بیوتین پراکسیدازPhosphate-buffered saline - محلول نمک فسفات با خاصیت بافریprefrontal - مقدمهparabrachial nucleus - هسته parabrachialtrochlear nucleus - هسته ترچلرcuneiform nucleus - هسته خمیدهdorsal raphe nucleus - هسته رافهTrigeminal mesencephalic nucleus - هسته مزانسفالی تیژمینالTrigeminal motor nucleus - هسته موتور دردیKölliker-Fuse nucleus - هسته کولیکر فیوزHippocampus - هیپوکامپ Caudate putamen - پاتامن CaudatePremotor - پیش موتورanterior commissure - کمربند قدامی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علم عصب شناسی
علوم اعصاب (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Corticofugal direct projections to primary afferent neurons in the trigeminal mesencephalic nucleus of rats Corticofugal direct projections to primary afferent neurons in the trigeminal mesencephalic nucleus of rats](/preview/png/6277124.png)
چکیده انگلیسی
Little is known about projections from the cerebral cortex to the trigeminal mesencephalic nucleus (Vmes) which contains the cell bodies of primary sensory afferents innervating masticatory muscle spindles and periodontal ligaments of the teeth. To address this issue, we employed retrograde (Fluorogold, FG) and anterograde (biotinylated dextranamine, BDA) tracing techniques in the rat. After injections of FG into the Vmes, a large number of neurons were retrogradely labeled in the prefrontal cortex including the medial agranular cortex, anterior cingulate cortex, prelimbic cortex, infralimbic cortex, deep peduncular cortex and insular cortex; the labeling was bilateral, but with an ipsilateral predominance to the injection site. Almost no FG-labeled neurons were found in the somatic sensorimotor cortex. After BDA injections into the prefrontal cortex, anterogradely labeled axon fibers and boutons were distributed bilaterally in a topographic pattern within the Vmes, but with an ipsilateral predominance to the injection site. The rostral Vmes received more preferential projections from the medial agranular cortex, while the deep peduncular cortex and insular cortex projected more preferentially to the caudal Vmes. Several BDA-labeled axonal boutons made close associations (possible synaptic contacts) with the cell bodies of Vmes neurons. The present results have revealed the direct projections from the prefrontal cortex to the primary sensory neurons in the Vmes and their unique features, suggesting that deep sensory inputs conveyed by the Vmes neurons from masticatory muscle spindles and periodontal ligaments are regulated with specific biological significance in terms of the descending control by the cerebral cortex.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Neuroscience - Volume 169, Issue 4, 15 September 2010, Pages 1739-1757
Journal: Neuroscience - Volume 169, Issue 4, 15 September 2010, Pages 1739-1757
نویسندگان
C. Iida, A. Oka, M. Moritani, T. Kato, T. Haque, F. Sato, M. Nakamura, K. Uchino, S. Seki, Y.C. Bae, K. Takada, A. Yoshida,