运动等离子体可以增强记忆力,并通过聚类蛋白抑制大脑炎症
Zurine De Miguel1,2,3,4, Nathalie Khoury1,2,3, Michael J Betley1,5
1Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA, USA.
Nature
|December 9, 2021
概括
运动等离子体含有减少大脑炎症和认知衰老的因素. 跑步者血中的一种叫做clusterin (CLU) 的蛋白质向大脑细胞,减少神经炎症,对小鼠和人类的认知健康有好处.
科学领域:
- 神经科学
- 免疫学
- 运动生理学
背景情况:
- 身体炼对认知健康有好处,
- 运动带来的认知效益与海马体的可塑性和减少炎症有关.
- 运动对大脑有益的机制基本上是未知的.
研究的目的:
- 在运动血中识别可转移的因子,
- 研究聚合蛋白 (CLU) 在运动对大脑的抗炎作用中扮演的角色.
- 在认知障碍患者中探索这些因素的存在.
主要方法:
- 从运动小鼠输入"跑步者血"给静止小鼠.
- 血蛋白质组分析以确定关键蛋白质,重点是补充级联抑制剂.
- 在大脑炎症和阿尔茨海默病的小鼠模型中静脉注射集群素 (CLU).
- 在进行运动的人类认知障碍患者中分析血CLU水平.
主要成果:
- 在静止小鼠中,跑步者血降低了基因表达和诱导神经炎症.
- 克鲁斯特林 (CLU) 被确定为通过运动增加的关键补充级联抑制剂.
- 在小鼠模型中注射的CLU与大脑内皮细胞结合并减少神经炎症.
- 经过6个月的运动后,认知障碍患者的血CLU升高.
结论:
- 运动血含有针对脑血管的可转移抗炎因素.
- 集群蛋白 (CLU) 是这些运动诱导的神经保护作用的关键媒介.
- 人类中CLU水平升高表明运动,炎症和认知健康之间存在着保护机制.
相关概念视频
Cognitive Enhancers: Cholinesterase Inhibitors and NMDA Receptor Antagonists
231
Cognitive enhancers, also known as "smart drugs," are substances used to enhance memory, mental alertness, and concentration. These can be natural or synthetic and improve cognition in conditions like Alzheimer's disease (AD) and other neurodegenerative diseases. Some common examples include caffeine, amphetamines, methylphenidate, modafinil, arecoline, donepezil, vortioxetine, and piracetam. These enhancers work on the principle of synaptic plasticity and altered circuit function.
231
Role of Neurotransmitters in Memory
1.3K
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...
Glutamate and Synaptic Plasticity
Glutamate, the brain's main excitatory neurotransmitter, is...
1.3K
Alzheimer's Disease: Treatment
288
Alzheimer's Disease (AD), a neurodegenerative disorder, is pathologically identified by amyloid plaques and neurofibrillary tangles composed of tau protein. AD pharmacotherapy aims to manage cognitive symptoms, delay disease progression, and treat behavioral symptoms. The treatment is primarily symptomatic and palliative, with no definitive disease-modifying therapy available. Cholinesterase inhibitors, including donepezil (Aricept), rivastigmine (Exelon), and galantamine (Razadyne), are...
288
Role of Cerebellum and Prefrontal Cortex in Memory
645
The cerebellum, while traditionally associated with motor control, also plays a crucial role in memory, particularly in procedural memory, which involves learning motor tasks that become automatic through repetition. For example, studies have shown that when the cerebellum is damaged, individuals or animals lose the ability to learn conditioned motor responses, such as the conditioned eye-blink response in classical conditioning experiments with rabbits. This study demonstrates the...
645


