实验者给药的D9THC降低了老鼠模型中的尼古丁自我管理
Antony D Abraham1, Jenny L Wiley1, Julie A Marusich1
1Center for Drug Discovery, RTI International, 3040 Cornwallis Rd, Research Triangle Park, NC 27709, USA.
Pharmacology, biochemistry, and behavior
|September 10, 2023
概括
在老鼠中,重复暴露于delta-9-tetrahydrocannabinol (THC) 减少了尼古丁的自我管理. 会议后的THC改变了尼古丁摄入的敏感性,而会议前的THC对尼古丁和砂糖的反应没有特别减少.
科学领域:
- 神经科学是一个神经科学.
- 药理学 药理学是指药理学的学科.
- 成研究 研究成研究
背景情况:
- 尼古丁和大麻的同时使用正在增加.
- 动物研究表明,三角-9-四大麻 (THC) 可能会增强尼古丁成.
- 重复暴露于THC对尼古丁自我管理的影响尚不清楚.
研究的目的:
- 为了研究重复的THC暴露如何影响老鼠的尼古丁自我管理.
- 为了确定THC是否会改变尼古丁摄入量和强化作用.
- 评估THC对尼古丁剂量反应曲线的影响.
主要方法:
- 在尼古丁自给培训之前和期间,老鼠每天接受THC (0,3或30毫克/公斤) 14天.
- 尼古丁剂量-效应曲线确定与或没有THC预处理.
- 评估了对糖的反应,以评估THC的非特异性行为影响.
主要成果:
- 会议后的THC降低了雄性和雌性大鼠的尼古丁自我管理.
- THC将尼古丁剂量效应曲线向下移动,并增加了摄入延迟.
- 会议前THC抑制了对尼古丁和糖的反应,表明无特异效应.
结论:
- 经过多次的THC暴露会减少尼古丁吸收行为.
- 会议后的THC可能会改变对尼古丁强化作用的敏感性.
- THC调节了尼古丁摄入模式,在会前给药显示了非特定的行为效应.
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