Facilitation of the swallowing reflex with bilateral afferent input from the superior laryngeal nerve.
Facilitation of the swallowing reflex with bilateral afferent input from the superior laryngeal nerve.
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来自上喉神经的双侧传入输入促进吞咽反射。
DOI：
10.1016/j.neulet.2014.01.017
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
Kitagawa J.
中科院分区：
文献类型：
--
作者：
Takahashi K;Shingai T;Saito I;Yamamura K;Yamada Y;Kitagawa J.
为了确定喉传入信号对吞咽反射的协同作用，我们检查了来自左、右喉上神经（SLN）的传入信号是否调节乌拉坦麻醉大鼠吞咽反射的诱发。记录下颌舌骨肌电图活动以量化吞咽反射。吞咽反射的起始潜伏期和连续吞咽之间的时间间隔用于量化和比较单侧和双侧前哨淋巴结电刺激的效果。低频刺激引起的第一次吞咽的平均潜伏期和吞咽之间的平均时间间隔在单侧和双侧前哨神经刺激之间均存在显着差异。这些发现表明，源自 SLN 的传入信号的促进作用可增加双侧延髓吞咽中枢的运动神经元活动并增强吞咽反射。
To determine the cooperative effect of laryngeal afferent signals on the swallowing reflex, we examined whether afferent signals originating from the left and right superior laryngeal nerve (SLN) modulates elicitation of the swallowing reflex in urethane-anesthetized rats. Mylohyoid electromyographic activity was recorded to quantify the swallowing reflex. The onset latency of the swallowing reflex and the time intervals between successive swallows were used to quantify and compare the effects of unilateral and bilateral electrical stimulations of the SLN. The mean latency of the first swallow and the mean time interval between swallows evoked with low frequency stimulation were both significantly different between unilateral and bilateral stimulations of the SLN. These findings suggest that facilitatory effect of afferent signals originating from the SLN bilaterally increase the motoneuronal activity in the medullary swallowing center and enhance the swallowing reflex.