西作为抗抑郁药治疗的治疗窗口很窄
Lenka Seillier1, Barbora Čechová1, Alexandre Seillier2
1Department of Physiology, Third Faculty of Medicine, Charles University, Ke Karlovu 4, 120 00 Prague 2, Czech Republic.
Progress in neuro-psychopharmacology & biological psychiatry
|April 17, 2025
概括
单剂量psilocybin显示了抗抑郁药的潜力,但最佳的治疗效果仅在老鼠中介剂量 (0.32 mg/kg) 观察到,避免了较高剂量出现的不良影响.
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
- 行为科学 行为科学
背景情况:
- 幻觉化合物psilocybin在单次使用后表现出快速和持续的抗抑郁作用.
- 为了获得治疗效益与副作用的最佳西剂量,需要进一步研究.
研究的目的:
- 为了确定抗抑郁药类效应的最佳剂量,
- 为了评估psilocybin的亲社会和改变快乐的影响.
- 检查剂量-反应关系的不良影响和神经生物学标志物.
主要方法:
- 威斯塔尔大鼠接受了单剂量 псилоцибин (0.13.2毫克/公斤).
- 行为测试包括强迫游泳测试 (FST),社交互动测试 (SIT) 和糖糖偏好测试 (SPT).
- 评估的头反应 (HTR),运动运动,体温,体重增加,以及海马/前额皮层BDNF水平.
主要成果:
- 一个中间的 псилоцибин剂量 (0.32 mg/kg) 在 FST,SIT 和 SPT 中产生了剂量依赖的抗抑郁药类效应,具有类似的 HTR 模式.
- 较高的psilocybin剂量 (1.0和3.2毫克/公斤) 缺乏抗抑郁作用,并导致身体温度降低,活动和体重增加等不良影响.
- 大脑衍生神经营养因子 (BDNF) 水平增加了剂量依赖,但线性,表明与观察到的行为影响的分离.
结论:
- 对于psilocybin的抗抑郁药物潜力而言,有一个狭窄的治疗窗口.
- 0.32 mg/kg的剂量似乎是最佳的,产生抗抑郁药类效应,而在较高剂量时没有观察到的不良影响.
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