利用新的循环喉运动神经传导研究来描述衰老的喉:一个试点研究
Hans C Baertsch1, David Cvancara2, Neel K Bhatt2
1Department of Otolaryngology-Head and Neck Surgery, Keck School of Medicine University of Southern California Los Angeles California USA.
Laryngoscope investigative otolaryngology
|June 21, 2023
概括
这项研究没有发现老老鼠喉的显著神经生理变化,使用经常性的喉运动神经传导研究. 需要进一步的研究,以建立可靠的动物模型来研究衰老的喉.
科学领域:
- 神经科学是一个神经科学.
- 耳鼻喉科 耳鼻喉科 耳鼻喉科
- 衰老研究研究 衰老研究
背景情况:
- 喉衰老与失声症和降低生活质量有关.
- 老化喉的神经生理学变化尚未得到充分理解.
- 用老鼠模型来研究这些变化.
研究的目的:
- 为了确定神经生理变化是否发生在衰老的喉.
- 在老鼠模型中利用循环喉运动神经传导研究 (rlMNCS).
- 为未来关于喉衰老的研究奠定基础.
主要方法:
- 在活体中,rlMNCS对年轻 (3-4个月) 和年长 (18-19个月) 的老鼠进行.
- 从甲状腺 (TA) 肌中记录了复合运动动作潜能 (CMAP).
- 刺激复发性喉神经 (RLNs),并分析神经截面的轴突数量,髓化和g比.
主要成果:
- 在CMAP幅度,负持续时间,发病延迟或年轻老鼠之间的负面区域中没有观察到统计学上显著的差异.
- 平均轴突数,髓厚度和g比在两个年龄组中都是相似的.
- 在所有动物中成功获得了rlMNCS,表明可行性.
结论:
- 这项试点研究在年轻和老老老鼠之间没有发现复发性喉神经导通或轴突组织学方面的显著差异.
- 研究结果表明,这种老鼠老龄化模型可以作为未来充足动力研究的基础.
- 进一步的研究可能会导致一种可操作的动物模型,用于研究衰老的喉和相关的听力障碍.
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