尼古丁对脑血管和神经认知功能的影响与子宫内电子烟暴露
Amber Mills1,2, Deborah Corbin3, Duaa Dakhallah4
1Department of Physiology, Pharmacology & Toxicology, West Virginia University School of Medicine, Morgantown, WV, USA.
The Journal of physiology
|October 9, 2025
概括
怀孕期间母亲的vaping,不管是瓦特或尼古丁,损害后代的脑血管功能. 尼古丁暴露会恶化神经认知缺陷和神经元损伤,这表明电子烟并非无害.
科学领域:
- 神经科学是一个神经科学.
- 血管生物学 血管生物学
- 毒理学 毒理学 毒理学
背景情况:
- 新兴研究将子宫内电子烟 (Ecig) 暴露与动脉功能障碍联系起来.
- 母婴吸烟的长期脑血管和神经认知影响尚不清楚.
- Ecigs允许评估尼古丁和可变功率设置对气溶毒性的影响.
研究的目的:
- 研究不同功率的母体电子烟对后代脑血管功能的可变影响.
- 要确定这些效应是否独立于尼古丁.
- 评估子宫内暴露后代的长期神经认知和大脑健康结果.
主要方法:
- 时间配对的斯普雷格-道利大鼠从怀孕第二天到第21天暴露在埃吉斯身上.
- 后代 (男性和女性) 在1,3,6和12个月大时进行了研究.
- 评估了脑血管功能 (中脑动脉),神经认知性能和分子标志物.
主要成果:
- 母亲的Ecig暴露损害了后代的中脑动脉功能,在30W与5W相比,损害更大.
- 与尼古丁或没有尼古丁发生血管功能障碍;尼古丁暴露 (50毫克/毫升) 导致短期记忆力缺陷和神经元损伤.
- 后代表现出改变的时钟基因表达,减少的Sirtuin-1,增加的NADPH氧化酶1和类似阿尔茨海默氏症的病理 (降低Aβ42/40比率).
结论:
- 在子宫内受 Ecig 暴露会对后代的大脑健康和神经认知功能产生不利影响.
- 脑血管功能障碍是依赖于瓦特的,并且独立于尼古丁.
- 尼古丁会加剧神经认知缺陷和神经元损伤,强调怀孕期间使用电子烟的风险.
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