在运动网络调制中脊柱投射血清性神经元
Andrea Giorgi1, C J Heckman2, Marie-Claude Perreault1
1Department of Cell Biology, Emory University School of Medicine, Atlanta, Georgia, USA.
Journal of neurophysiology
|July 17, 2025
概括
脊柱投射的血清能 (5-HTsp) 神经元影响运动控制. 对它们在传感运动电路中的特定作用的直接证据是有限的,需要进一步研究它们的独特功能.
科学领域:
- 神经科学是一个神经科学.
- 发动机控制器的控制器
- 神经解剖学是一个神经解剖学.
背景情况:
- 大脑干中脊柱投射的血清激素 (5-HTsp) 神经元与运动控制有关.
- 它们对脊柱感觉运动网络的影响被认为是,但主要是从间接证据推断出来的.
- 有限的直接研究存在于5-HTsp神经元的特定解剖和功能连接.
研究的目的:
- 审查目前对5-HTsp神经元解剖学和它们对感觉运动电路的影响的理解.
- 突出了关于5-HTsp神经元子群的独特作用的直接证据的需要.
- 将发现纳入运动控制和帕金森病和ALS等疾病的模型.
主要方法:
- 过去六十年的文献综述,重点是对5-HTsp神经元的直接操纵.
- 排除仅依赖于外源性血清素 (5-HT) 应用的研究.
- 对5-HTsp神经元群体的解剖学和功能数据的分析.
主要成果:
- 有证据表明,5-HTsp神经元通过各种类型的血清受体子类型广泛影响脊髓感觉运动网络.
- 关于特定的5-HTsp神经元子群的直接功能和解剖学数据仍然有限.
- 现有的研究往往依赖于间接的方法,导致潜在的差异.
结论:
- 5-HTsp神经元对运动控制的精确贡献需要通过直接实验方法进一步阐明.
- 了解5-HTsp神经元的异质性对于完善运动控制模型至关重要.
- 新的研究工具可能有助于解决关于5-HTsp神经元在健康和疾病中的功能方面的知识差距.
相关概念视频
Indirect Motor Pathways
1.7K
The indirect motor or extrapyramidal pathways originate in the brainstem, the lower portion of the brain that connects it to the spinal cord. They consist of several distinct tracts, each with specialized functions. The four main tracts of the indirect motor pathways are the vestibulospinal tract, the reticulospinal tract, the tectospinal tract, and the rubrospinal tract.
The vestibulospinal tract originates in the vestibular nuclei of the brainstem. The vestibular system detects changes in...
The vestibulospinal tract originates in the vestibular nuclei of the brainstem. The vestibular system detects changes in...
1.7K
Direct Motor Pathways
2.5K
The direct motor pathways, also known as the pyramidal tracts, are a group of neural pathways that originate in the brain and descend through the spinal cord. They control the voluntary movement of the body. There are two major direct motor pathways: the corticospinal and the corticobulbar tracts.
The corticospinal tract is responsible for the voluntary movement of the limbs and trunk. It originates in the cerebral cortex of the brain and descends through the cerebrum's internal capsule and...
The corticospinal tract is responsible for the voluntary movement of the limbs and trunk. It originates in the cerebral cortex of the brain and descends through the cerebrum's internal capsule and...
2.5K
Drugs Affecting GI Tract Motility: Serotonin Receptor Agonists
409
Serotonin, a crucial neurotransmitter synthesized by enterochromaffin cells, plays a cardinal role in regulating gastrointestinal (GI) motility. With over 90% of the body's total serotonin in the GI tract, its influence on digestive processes is profound. Serotonin is swiftly released upon various stimuli, such as food boluses or certain drugs, triggering intrinsic sensory neurons in the myenteric plexus and extrinsic vagal and spinal sensory neurons. This leads to the activation of the...
409
Brainstem
3.1K
The brainstem, located inferior to the brain and superior to the spinal cord, serves as a bridge between the cerebrum and the spinal cord. It plays a vital role in relaying information and controlling critical life functions. It comprises three primary regions: the midbrain, pons, and medulla oblongata.
The Midbrain
The midbrain is located beneath the diencephalon and connects the cerebrum with the lower parts of the brain. The cerebral peduncles are prominent midbrain structures that house the...
The Midbrain
The midbrain is located beneath the diencephalon and connects the cerebrum with the lower parts of the brain. The cerebral peduncles are prominent midbrain structures that house the...
3.1K
Hierarchy of Motor Control
3.6K
The hierarchy of motor control refers to the different levels of organization and processing involved in controlling movement in the body. These levels range from higher cortical areas involved in planning and decision-making to lower spinal cord reflexes that respond automatically to external stimuli.
3.6K
Spinal Cord: Cross-sectional Anatomy
2.4K
The cross-sectional anatomy of the spinal cord offers a detailed view of its complex structure and function within the central nervous system. At the core of the spinal cord lies the gray matter, characterized by its butterfly or "H"-shaped appearance in cross-section. This central region is enveloped by white matter, with the overall structure divided into symmetrical halves by the dorsal median sulcus and the ventral median fissure.
Gray Matter and its Components
Central to the gray matter is...
Gray Matter and its Components
Central to the gray matter is...
2.4K


