Tongue and hypoglossal morphology after intralingual cholera toxin B-saporin injection.

Tongue and hypoglossal morphology after intralingual cholera toxin B-saporin injection.
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舌内注射霍乱毒素B - 皂草素后舌体和舌下神经形态

DOI:
10.1002/mus.27131
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发表时间:
2021-03
期刊:
影响因子:
3.4
通讯作者:
Nichols NL
Nichols NL
中科院分区:
医学3区
文献类型:
--
作者:
Lind LA;Lever TE;Nichols NL

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我们最近利用舌内注射霍乱毒素B - 皂草素结合物(CTB - SAP)导致舌下神经细胞死亡,开发了一种吞咽困难的诱导模型。在这项研究中,我们旨在评估该模型中舌下神经细胞和神经纤维的舌形态及超微结构变化。 在注射后第9天,从20只大鼠(10只对照组和10只CTB - SAP组大鼠)收集组织。对舌进行称重、测量,并使用层粘连蛋白免疫组织化学分析微观变化。使用透射电子显微镜检查舌下神经细胞和轴突。 在注射CTB - SAP的大鼠中,颏舌肌后部肌纤维的横截面积减小。在舌下神经细胞的胞体和远端轴突中均观察到退行性变化。 初步结果表明,该模型可能对多种导致舌功能障碍及相关吞咽困难的神经退行性疾病具有转化应用价值。
We recently developed an inducible model of dysphagia using intralingual injection of cholera toxin B conjugated to saporin (CTB-SAP) to cause death of hypoglossal neurons. In this study we aimed to evaluate tongue morphology and ultrastructural changes in hypoglossal neurons and nerve fibers in this model. Tissues were collected from 20 rats (10 control and 10 CTB-SAP animals) on day 9 post-injection. Tongues were weighed, measured, and analyzed for microscopic changes using laminin immunohistochemistry. Hypoglossal neurons and axons were examined using transmission electron microscopy. The cross-sectional area of myofibers in the posterior genioglossus was decreased in CTB-SAP–injected rats. Degenerative changes were observed in both the cell bodies and distal axons of hypoglossal neurons. Preliminary results indicate this model may have translational application to a variety of neurodegenerative diseases resulting in tongue dysfunction and associated dysphagia.
DOI: 10.1097/00001756-199902050-00019
发表时间: 1999-02-05
期刊: NEUROREPORT
影响因子: 1.7
作者:
Llewellyn-Smith, IJ;Martin, CL;Minson, JB
通讯作者: Minson, JB
DOI: 10.1177/000348940611501111
发表时间: 2006-11-01
影响因子: 1.4
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发表时间: 2010-06-01
期刊: DYSPHAGIA
影响因子: 2.6
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DOI: 10.1007/s00455-008-9190-z
发表时间: 2009-06-01
期刊: DYSPHAGIA
影响因子: 2.6
作者:
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DOI: 10.1016/s0165-0270(00)00298-3
发表时间: 2000-11-15
影响因子: 3
作者:
Llewellyn-Smith, IJ;Martin, CL;Minson, JB
通讯作者: Minson, JB