大脑时钟中的旅程:真实存在吗?
Alec J Davidson1, Delaney Beckner1, Xavier Bonnefont2
1Neuroscience Institute, Morehouse School of Medicine, Atlanta, GA 30310, USA.
Biology
|August 26, 2023
概括
上细胞核 (SCN) 作为身体的主生理时钟. 新的神经科学工具可以更深入地了解SCN细胞功能及其在调节日常节律中的作用.
科学领域:
- 神经科学是一个神经科学.
- 时间生物学 时间生物学
- 生理学 生理学 生理学
背景情况:
- 下丘脑中的上神经核 (SCN) 包含哺乳动物的昼夜节律起器.
- 了解SCN的节奏性,输出和环境重置对于时代生物学至关重要.
- 以前的研究利用神经生理学,病变研究和电生理学.
研究的目的:
- 审查从体内研究中对SCN的当前知识.
- 突出新技术如何解决关于SCN细胞子群和电路的新出现的问题.
- 探索外部/内部输入的整合以及SCN对身体节律的控制.
主要方法:
- 现有体内神经生理学研究的审查 (损伤研究,多单元电生理学).
- 对分子和细胞机制的ex vivo和体外方法的讨论.
- 强调新兴的基因编码工具和先进的成像技术.
主要成果:
- 在体内研究已经在动物模型中描述了SCN节奏性和输出.
- 活体和体外研究已经阐明了分子和细胞起器机制.
- 新的研究方向侧重于SCN网络中的细胞特异性功能.
结论:
- 集成的体内和细胞方法对于了解SCN至关重要.
- 像基因编码和成像这样的先进工具对于未来的时代生物学研究至关重要.
- 复杂的SCN电路和输入集成是正在进行的调查的关键领域.
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