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Cognitive Enhancers: Cholinesterase Inhibitors and NMDA Receptor Antagonists01:30

Cognitive Enhancers: Cholinesterase Inhibitors and NMDA Receptor Antagonists

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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.
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Updated: Sep 9, 2025

A General Method for Evaluating Deep Brain Stimulation Effects on Intravenous Methamphetamine Self-Administration
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[由甲基胺引起的微细胞介导认知障碍]

Naotaka Izuo1,2, Yuka Kusui1,3, Atsumi Nitta1

  • 1Department of Pharmaceutical Therapy and Neuropharmacology, Faculty of Pharmaceutical Sciences, University of Toyama.

Nihon yakurigaku zasshi. Folia pharmacologica Japonica
|August 31, 2025
PubMed
概括
此摘要是机器生成的。

甲基胺 (METH) 的使用通过激活微质,导致突触修剪导致认知缺陷. 在小鼠模型中,用米诺环素抑制这种微质激活恢复了认知功能.

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科学领域:

  • 神经科学
  • 神经炎症
  • 神经药理学

背景情况:

  • 长期使用甲基胺 (METH) 与认知缺陷和大脑结构变化有关.
  • 在METH使用者中,神经炎症与形态损伤同时发生,由质激活表明.
  • 微质激活和补充信号与神经退行性和精神疾病有关.

研究的目的:

  • 研究METH,神经炎症和认知功能障碍之间的因果关系.
  • 探索微质激活和补充信号在METH诱导的认知障碍中的作用.
  • 确定METH相关认知缺陷的潜在治疗目标.

主要方法:

  • 开发了一种小鼠模型,用METH的低剂量微灌.
  • 评估认知功能,海马长期增强和微质激活标记 (IL-1β,C1q).
  • 用于抑制微质激活,并评估其作用.

主要成果:

  • 用METH注入的小鼠表现出认知缺陷和海马长期增强功能受损.
  • 这些小鼠的微细胞活化增加,IL-1β和C1qmRNA水平升高.
  • 这些分子标志物正常化,恢复认知功能.

结论:

  • 由METH引起的认知障碍是通过补充信号通过异常的微质剪切介导的.
  • 针对微质激活是METH相关认知功能障碍的有希望的治疗策略.
  • 这项研究为开发兴奋剂使用障碍的新疗法提供了临床前基础.