口服大麻的药理学建模以及对马类药物控制的影响
Fabienne Eichler1, Błażej Poźniak2, Marc Machnik3
1Equine Clinic, Veterinary Hospital Freie Universität Berlin, School of Veterinary Medicine, Freie Universität Berlin, Berlin, Germany.
Cannabidiol (CBD) 越来越多地用于马,但其在血液和尿液中的检测时间尚不清楚. 这项研究确定了CBD.
科学领域:
- 兽医药理学 兽医药理学
- 马体育医学 马体育医学
- 分析化学 分析化学
背景情况:
- 大麻素 (CBD) 产品对马很受欢迎,但生物样本检测时间的数据有限.
- 在马术运动中禁止使用大麻素,因此需要明确的兴奋剂控制指南.
- 了解CBD的药理动力学对于解释马的分析结果至关重要.
研究的目的:
- 在马中测定口服CBD的药理动力学特性.
- 为兴奋剂控制实验室提供数据,以解释CBD分析结果.
- 在马类血液和尿液中确定CBD的检测时间和消除阶段.
主要方法:
- 进行了一项剂量升级研究,单次口服CBD (0.2,1和3mg/kg).
- 进行了一项多剂量研究,每天两次给CBD (3mg/kg) 15天.
- 分析血液和尿液样本使用气相色谱/并联质谱和药理动力学建模.
主要成果:
- 口服CBD在马匹中耐受良好.
- 一个具有零顺序吸收的三部分模型最好地描述了CBD的药理动力学.
- 血清中CBD的终端半衰期约为161小时,尿液与血清的比率 (Rss) 为4.45.
- CBD经历广泛的新陈代谢和组织分布,导致长时间的排泄阶段.
结论:
- CBD在马中表现出广泛的新陈代谢和分布,导致延长了消除阶段.
- 计算的稳定状态尿液与血清度比率 (Rss) 对于药物控制至关重要.
- 需要进一步的研究来将这些发现与CBD的治疗效果相关联,并确定最终的切断值.
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