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首页> 外文期刊>Journal of chemical neuroanatomy >Calcitonin gene-related peptide immunoreactive sensory neurons in the vagal and glossopharyngeal ganglia innervating the larynx of the rat
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Calcitonin gene-related peptide immunoreactive sensory neurons in the vagal and glossopharyngeal ganglia innervating the larynx of the rat

机译：迷走大鼠喉的迷走神经和舌咽神经节中降钙素基因相关肽的免疫反应性感觉神经元

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摘要

We have examined whether calcitonin gene-related peptide-immunoreactive (CGRP-ir) neurons in the vagal and glossopharyngeal ganglia innervate the larynx. Many CGRP-ir neurons were located mostly in the superior glossopharyngeal-jugular ganglion complex that was fused the superior glossopharyngeal ganglion and the jugular ganglion in the cranial cavity. When Fluorogold was applied to the cut end of the superior laryngeal nerve (SLN) or the recurrent laryngeal nerve (RLN), many Fluorogold-labeled neurons were found in the superior glossopharyngeal-jugular ganglion complex and the nodose ganglion. Double-labeling for CGRP and Fluorogold showed that about 80% of Fluorogold-labeled neurons in the superior glossopharyngeal-jugular ganglion complex expressed CGRP-like immunoreactivity in the case of application to the SLN, and about 50% of Fluorogold-labeled neurons expressed CGRP-like immunoreactivity in the case of the RLN. Only a few double-labeled neurons were found in the nodose ganglion. The number of the Fluorogold-labeled neurons and double-labeled neurons in the superior glossopharyngeal-jugular ganglion complex in the case of the SLN was larger than that in the case of the RLN. These results indicate that sensory information from the larynx might be conveyed by many CGRP-ir neurons located in the superior glossopharyngeal-jugular ganglion complex by way of the SLN and the RLN.
机译：我们已经检查了迷走神经和舌咽神经节中降钙素基因相关的肽免疫反应性（CGRP-ir）神经元是否支配了喉。许多CGRP-ir神经元大多位于上咽咽喉-颈神经节复合体中，该复合体融合了上咽舌咽神经节和颈神经节在颅腔中。当将荧光金应用于喉上神经（SLN）或喉返神经（RLN）的切端时，在舌上咽-颈神经节复合体和结节神经节中发现了许多荧光金标记的神经元。 CGRP和荧光金的双重标记显示，上皮咽喉-颈神经节复合物中约80％的荧光金标记的神经元在应用SLN时表达CGRP样的免疫反应，而荧光金标记的神经元中约50％的表达CGRP对于RLN的免疫球蛋白样免疫反应性。结节神经节中仅发现了几个双标记的神经元。在SLN情况下，上咽咽喉-颈神经节复合体中荧光金标记的神经元和双标记神经元的数量大于RLN的数量。这些结果表明，来自喉的感觉信息可能由位于上咽咽喉-颈神经节复合体中的许多CGRP-ir神经元通过SLN和RLN传递。

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