在复发性缓解性多发性硬化症中,灰色物质积和缩与神经递质地图相对应
Yan Xie1, Shaolong Wu1, Hongquan Zhu1
1Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
European radiology
|July 30, 2025
概括
复发性复发性多发性硬化症患者在皮质区域显示灰质的增加,这与残疾有关. 这种积与神经递质分布相关,可能解释临床症状.
科学领域:
- 神经成像是一种神经成像.
- 神经学 神经学
- 生物化学 生物化学
背景情况:
- 复发性缓解性多发性硬化症 (RRMS) 的特征是神经炎症和神经退行.
- 灰质 (GM) 完整性对神经功能至关重要,其损伤有助于MS中的残疾.
- 目前对RRMS中GM早期代谢变化的理解是有限的.
研究的目的:
- 通过使用 (Na-MRI) 和质子 (H-MRI) 核磁共振 (MRI) 来调查RRMS中的GM积和体积变化.
- 探索区域转基因损伤,神经递质分布和RRMS患者的临床特征之间的关系.
主要方法:
- 55名RRMS患者和55名健康对照 (HC) 接受了Na-MRI和H-MRI.
- 基于voxel和兴趣区域的分析被用来比较组之间的转基因总度 (TSC) 和体积.
- 分析了转基因损伤模式和基于图谱的神经递质地图之间的空间相关性.
主要成果:
- 与HC相比,RRMS患者在皮质区域,海马体和副海马体圈中显著增加了GM TSC.
- 在特定领域增加的GM TSC与扩展的残疾状况尺度正相关.
- 在某些地区减少的转基因数量与疾病持续时间有负相关性.
- 转基因积和缩模式与血清素,多巴胺,GABAergic,阿片类药物和上腺素神经递质分布空间相关.
结论:
- 积累是RRMS患者皮质GM的一个突出的特征,与身体残疾有关.
- 与特定的神经递质系统相关的观察到的转基因损伤模式可能是MS的一些临床表现的基础.
- 23Na-MRI可以检测MS中早期的代谢转基因损伤,提供有关疾病机制和潜在治疗点的见解.
相关概念视频
01:23Role of Neurotransmitters in Memory
Neurotransmitters are integral to the brain's communication system, enabling neurons to transmit signals across synapses. This chemical exchange underpins various cognitive functions, including memory processes. The role of neurotransmitters in memory is multifaceted, influencing the encoding, consolidation, and retrieval of memories through their action on different neural circuits.
Glutamate and Synaptic Plasticity
Glutamate, the brain's main excitatory neurotransmitter, is critical for...
Glutamate and Synaptic Plasticity
Glutamate, the brain's main excitatory neurotransmitter, is critical for...
01:19Multiple Sclerosis l: Introduction
Multiple sclerosis is a chronic autoimmune disease of the central nervous system (CNS) that affects the brain, spinal cord, and optic nerves. It is an inflammatory demyelinating disorder and a leading cause of neurological disability in young adults.EpidemiologyMS commonly begins between 20 and 40 years of age and is twice as common in women. Its exact cause remains unclear, but genetic susceptibility contributes, with higher risk in first-degree relatives and identical twins. A greater...
01:23Alzheimer Disease ll: Pathophysiology
Alzheimer disease involves structural changes in the brain that begin long before symptoms appear. The most distinctive features are extracellular neuritic plaques and intracellular neurofibrillary tangles.Neuritic plaques form in the cerebral cortex and around blood vessels. These plaques contain a dense core of beta-amyloid (Aβ)—a toxic protein fragment that clumps outside neurons. The core is surrounded by damaged neuronal extensions, as well as reactive astrocytes and microglia. Abnormal...