液的快速抗抑郁作用是由5-HT2B受体调节的
Amel Bouloufa1, Sarah Delcourte1, Renaud Rovera1
1Univ Lyon, Université Claude Bernard Lyon 1, Inserm, Stem Cell and Brain Research Institute U1208, Bron 69500, France.
概括
lysergic acid diethylamide (LSD) 通过激活5-HT2B受体,迅速降低了老鼠的抑郁和焦虑. 在小鼠中没有观察到这种效应,这表明LSD的物种特异性机制.
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
- 药用化学 医学化学
背景情况:
- 类似于lysergic acid diethylamide (LSD) 的血清激素类迷幻药,在治疗情绪障碍方面表现有前途.
- 液胺与5-HT2B受体显著相互作用,这与调节焦虑和抑郁有关.
研究的目的:
- 研究LSD对大鼠和小鼠行为和神经元活动的急性影响.
- 确定5-HT2B受体在调解LSD抗抑郁药,抗焦虑药和幻觉类效应中的作用.
主要方法:
- 行为测试 (强迫游泳测试,开放场地测试,黑白盒子测试) 和体内电生理学测试用于天真的老鼠和小鼠.
- 选择性5-HT2B受体阻塞与RS-127445和5-HT枯竭被用于评估作用机制.
主要成果:
- 急性LSD给药在老鼠中产生了快速的抗抑郁药,抗焦虑药和类似幻觉的效果,伴随着抑制5-HT神经元活动.
- 在老鼠中,这些效应被5-HT2B受体对抗阻断,并被5-HT耗尽所阻止.
- 相比之下,LSD在小鼠中没有引起抗抑郁或抗焦虑作用,其类似幻觉的效果不受5-HT2B受体阻塞的影响.
结论:
- 急性LSD的使用在老鼠中起到快速起作用的抗抑郁药的作用,由5-HT2B受体激活介导.
- 似乎LSD的抗抑郁和抗焦虑作用是物种特异性的,老鼠表现出这些反应,而小鼠则没有.
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