庞丁类双臂核 - 基底前脑电路调节皮质和海马体兴奋
Yudan Lv1, Yujun Wen2, Ramalingam Vetrivelan3
1Department of Neurology and Neuroscience Center, The First Hospital of Jilin University, Changchun, Jilin, China; Department of Neurology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA.
Sleep medicine
|November 20, 2023
概括
突式近臂核 (PB) 投射到基底前脑 (BF) 和中间隔膜 (MS) 具体调节分别皮质和海马活动. 这一途径是睡眠-清醒周期期间兴奋的关键.
科学领域:
- 神经科学是一个神经科学.
- 睡眠研究 睡眠研究
- 大脑电路的大脑电路
背景情况:
- 基本前脑 (BF) 和中间隔膜 (MS) 对于在睡眠-清醒周期期间调节大脑皮质和海马 (HPC) 活动至关重要.
- 之前的研究表明,突式骨核 (PB) 投射到BF和MS在皮层和HPC激发中起作用.
研究的目的:
- 调查PB投射到BF和MS在激活大脑皮层和HPC中的作用.
- 为了确定PB对BF和MS的投射是否特别调节皮质和HPC活动.
主要方法:
- 在老鼠中,BF和MS的化学遗传刺激.
- 准向BF和MS投射的PB神经元.
- 脑电图 (EEG) 快速里埃转换 (FFT) 分析以评估神经元活动.
- 监测睡眠和清醒状态.
主要成果:
- 对投射到BF的BF或PB神经元的化学遗传刺激激活了大脑皮层.
- 对向MS投射的MS或PB神经元的化学遗传刺激激活了HPC活动.
- 刺激并没有显著改变整体的睡眠和清醒时间.
结论:
- 对BF和MS的PB预测分别选择性地调节皮质和HPC活动.
- 这种PB-BF-MS电路是兴奋和大脑状态的关键调节器.
- 进一步的研究可以探索对兴奋障碍的治疗应用.
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