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在电子烟液体中发现的风味化合物差异性地增强了小鼠的自愿尼古丁消费和偏好
Ketki Pawaskar1, Sophia M Scott1, Shaydel Engel1
1Department of Pharmacology, University of Minnesota, Minneapolis, MN, USA.
概括
电子烟中的风味化合物对小鼠的尼古丁摄入量有不同的影响. 这些对尼古丁消费和偏好的明显影响并不是由于口味偏好本身.
科学领域:
- 药理学 药理学是指药理学的学科.
- 神经科学是一个神经科学.
- 毒理学 毒理学 毒理学
背景情况:
- 特定的风味化合物如β-damascone (烟草),trans-2-hexenal (水果) 和isoamyl乙 (水果,糖果,甜点) 在电子烟液体中存在.
- 了解这些个体风味化合物如何影响尼古丁消费对于公共卫生至关重要.
研究的目的:
- 在小鼠模型中调查β-damascone,trans-2-hexenal和isoamyl乙酸盐对尼古丁消费和偏好的影响.
- 为了确定风味化合物是否能调节尼古丁摄入,而不依赖于风味偏好.
主要方法:
- 成年雄性C57BL/6J小鼠参加了为期5周的两瓶选择测试.
- 鼠标暴露于尼古丁,单独的风味化合物,或尼古丁与不同度的风味化合物相结合.
主要成果:
- 贝塔-达马斯康 (1微克/毫升) 增加了尼古丁的消费和偏好.
- 转基因-2-hexenal对尼古丁消费或偏好没有影响.
- 异乙 (1μg/mL) 增加了尼古丁的消费,但不是偏好.
结论:
- 味道化合物对尼古丁消费和偏好产生明显的调节作用.
- 这些效应并不是由对香味本身的偏好增加所驱动.
- 味道化合物的调节效应不能按味道类别概括,因为同一类别内的化合物具有不同的影响.
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