血清色精神药物迅速调节在培养的皮层神经元中引起的谷氨酸释放
Aneta Petrušková1,2,3, Debarpan Guhathakurta1, Enes Yağız Akdaş1
1Department of Psychiatry and Psychotherapy, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.
Journal of neurochemistry
|March 1, 2025
概括
像 псилоцибин这样的血清激素迷幻药物迅速改变神经元中的突触囊功能. 这些对神经传递的短暂影响可能解释了它们对精神疾病的治疗潜力.
科学领域:
- 神经科学是一个神经科学.
- 心理药理学 心理药理学
- 细胞生物学 细胞生物学
背景情况:
- 血清色精神药物 (psilocybin,LSD,DMT) 在治疗精神疾病方面表现有前途.
- 现有的研究证实了它们对神经元活动和可塑性的影响.
- 这些物质的作用机制仍然不完全理解.
研究的目的:
- 在单个突触层面上研究迷幻药对突触前特性的快速影响.
- 阐明所谓的色胺类精神药物的治疗潜力的机制.
主要方法:
- 在初级大鼠皮层神经元中利用活细胞成像.
- 雇佣了synaptopHluorin报告员来监测突触囊泡融合.
- 使用iGluSnFR和synGCaMP6传感器来测量谷氨酸释放和突触前水平.
主要成果:
- 迷幻药在3-30分钟内暂时降低了融合突触囊泡的比例.
- DMT减少了总回收池,而LSD和精神素也影响了容易释放的池.
- 西洛辛和DMT增加了诱发的谷氨酸释放,而LSD和西洛辛降低了前突触.
结论:
- 迷幻药会诱导快速,短暂的,药物特异性的谷氨酸性神经传递的调节.
- 这些前突触效应可能是血清醇类精神药物的抗焦虑和抗抑郁特性的基础.
- 对这些机制的进一步研究可以为新型精神病治疗的发展提供信息.
更多相关视频
07:30HSV-Mediated Transgene Expression of Chimeric Constructs to Study Behavioral Function of GPCR Heteromers in Mice
Published on: July 9, 2016
7.2K
08:49Rapid In Situ Hybridization using Oligonucleotide Probes on Paraformaldehyde-prefixed Brain of Rats with Serotonin Syndrome
Published on: September 23, 2015
8.8K
相关概念视频
01:22CNS Stimulants: Psychedelic Agents
116
Hallucinogens, also known as psychedelic drugs, are a class of substances known for their ability to alter perception, cognition, and emotions. Despite their profound effects on the mind, these drugs are non-addictive, setting them apart from many other abused substances. The mechanism of action of these drugs lies in their impact on the 5-HT2A receptor in the brain. Upon activation, this receptor couples to Gq-type G proteins, triggering a cascade that releases intracellular calcium. This...
116
01:29Excitatory and Inhibitory Effects of Neurotransmitters
9.7K
When an action potential reaches the presynaptic axon terminal, it releases neurotransmitters from the neuron into the synaptic cleft at a chemical synapse. The released neurotransmitter can be excitatory or inhibitory. The critical criteria commonly used to determine whether a molecule is a neurotransmitter at a chemical synapse are the molecule's presence in the presynaptic neuron. Second, its release is in response to strong presynaptic depolarization. And lastly, the presence of...
9.7K