在帕金森病中,在外部指导的运动过程中,亚thalamic和pallidal神经元被调节
Stephanie Tran1, Tjitske C Heida2, Janne J A Heijs2
1Institute of Medical Science, University of Toronto, Ontario, Canada.
Neurobiology of disease
|December 22, 2023
概括
外部感官线索有助于帕金森病 (PD) 患者的步态,但基底质的作用尚不清楚. 这项研究发现,在节律运动过程中,脑下核 (STN) 和内球 (GPi) 神经元和β带活动与听觉线索发生变化.
科学领域:
- 神经科学是一个神经科学.
- 运动障碍 运动障碍
- 深度大脑刺激 深度大脑刺激
背景情况:
- 帕金森病 (PD) 中的步态结 (FOG) 可以通过外部感官线索来减轻.
- 基底腺在处理这些运动控制的线索中的特定作用仍然不完全理解.
研究的目的:
- 在PD患者的听觉调节节律运动期间,研究体下核 (STN) 和内部球 (GPi) 中的神经活动.
- 检查基底质中单个单元 (SU) 发射和β频段振荡 (13-30 Hz) 是如何通过不同的听觉暗示频率调节的.
主要方法:
- 在接受STN或GPi深度大脑刺激 (DBS) 的24名PD患者中进行了微电极记录.
- 参与者从事听觉指导的节奏脚踏,频率从1赫兹到3赫兹.
- 单个单元的发射率和局部现场潜力 (LFP) 贝塔功率在运动和暗示开始时被分析.
主要成果:
- 随着听觉暗示频率的增加,脚踏步的定时精度下降.
- 无论是STN和GPi神经元,在更高的暗示频率下,都显示出较低的发射速度.
- GPiβ功率表现出快速线索的持续抑制和缓慢线索的相位调制.
- STNβ功率在运动后表现出增强的同步,与踏板速度相关.
结论:
- 在PD中,基底 (STN和GPi) 在听觉驱动的节奏运动中显示与任务相关的神经反应.
- 这些核似乎在节奏节奏过程中处理感官输入和运动控制方面发挥着不同的作用.
- 研究结果表明,输入和输出基底节结构都参与了PD中类似步行运动的听觉运动集成.
更多相关视频
相关概念视频
Neural Regulation
39.5K
Digestion begins with a cephalic phase that prepares the digestive system to receive food. When our brain processes visual or olfactory information about food, it triggers impulses in the cranial nerves innervating the salivary glands and stomach to prepare for food.
39.5K
Parkinson's Disease: Treatment
274
Neurodegenerative disorders, such as Parkinson's Disease (PD), involve the gradual and irreversible destruction of neurons in particular brain areas. These disorders exhibit standard features like proteinopathies, selective vulnerability of some neurons, and an interaction of intrinsic properties, genetics, and environmental influences in neural injury.
Parkinson's Disease is primarily a result of the loss of dopaminergic neurons in the substantia nigra pars compacta. The cornerstone of...
Parkinson's Disease is primarily a result of the loss of dopaminergic neurons in the substantia nigra pars compacta. The cornerstone of...
274
Parkinson's Disease: Overview
554
Neurodegenerative disorders are progressive diseases that cause irreversible damage and loss to neurons in specific brain areas. Examples of these disorders include Parkinson's disease, Alzheimer's disease, Multiple Sclerosis (MS), and Amyotrophic Lateral Sclerosis (ALS). These disorders share characteristics such as proteinopathies, selective neuronal vulnerability, and a complex interplay between genetic and environmental factors. The primary therapeutic goal for these conditions is...
554


