加利福尼亚小鼠 (Peromyscus californicus) 声的产后发育和形式-功能关系
Alicia Miller1, Mia Sherwood2, Ingo Titze3
1Arizona College of Osteopathic Medicine, College of Graduate Studies; Midwestern University; Glendale, Arizona, USA.
American journal of physiology. Cell physiology
|January 9, 2026
概括
加利福尼亚小鼠表现出独特的声适应性,包括专门的纤维细胞和全米生长,使得高频发声和弹性. 这些细胞专业化是特定物种声音功能和稳定性的关键.
科学领域:
- 比较生物力学比较
- 声生理学 声生理学
- 哺乳动物的发声声.
背景情况:
- 哺乳动物的发声依赖于由空气流驱动的喉和声振荡.
- 常见的实验室模型可能不能完全代表声适应各种发音或修复.
- 加利福尼亚老鼠 (Peromyscus californicus) 在一生中产生高基本频率 (f0).
研究的目的:
- 在整个发育过程中调查加利福尼亚小鼠的声结构和功能.
- 告知一种新的声生物力学模型.
- 了解支持高频声产和稳定的细胞适应.
主要方法:
- 检查了三个发育阶段的声结构和组成.
- 在实验室中分析了纤维细胞 (细胞) 的特性,比较了加利福尼亚老鼠和室内老鼠 (Mus musculus).
- 在早期发育过程中测量了喉肌肉肌纤维直径的变化.
主要成果:
- 加利福尼亚老鼠的声表现出负度增长,改变形状和组成.
- 与室内小鼠相比,声纤维细胞表现出不同的尺寸,形状和α-平滑肌动蛋白 (α-SMA) 表达.
- 喉肌肉肌纤维在生命的前三周内直径翻一番.
结论:
- 在发育过程中,有差异化的全度喉和声生长可能会稳定基本频率 (f0).
- 一种特定物种的纤维细胞表型可能会增强声振动和组织弹性.
- 细胞适应在特定物种的声功能和稳定性中起着重要作用.
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