父母接触乙醇对后代记忆的影响:空间和被动回避任务中的性别差异
Amirhossein Heidari1, Arman Hajikarim-Hamedani2, MohammadBasir Asefi3
1Faculty of Medicine, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
Alcohol (Fayetteville, N.Y.)
|February 4, 2025
概括
在受孕前父母的酒精暴露会损害后代的空间记忆. 虽然男性表现出被动回避记忆的缺陷,但女性表现出性,可能与更高的焦虑水平有关.
科学领域:
- 神经科学是一个神经科学.
- 发展生物学 发展生物学
- 毒理学 毒理学 毒理学
背景情况:
- 由于潜在的跨代影响,家长的酒精消费是一个重大问题.
- 乙醇 (酒精) 已知有抗焦虑作用,但长期使用会导致认知和身体问题.
- 以前的研究表明,父母接触乙醇可以影响后代的发育和行为.
研究的目的:
- 研究父母在怀孕前接触乙醇对男性和女性后代的学习和记忆的影响.
- 用莫里斯水迷宫来评估空间学习和记忆.
- 为了评估被动回避记忆和脑衍生神经营养因子 (BDNF) 在后代的水平.
主要方法:
- 成年Wistar大鼠在交配前30天暴露在饮用水中的乙醇中.
- 后代来自四个组:对照组,暴露于乙醇的雄性,暴露于乙醇的母体,以及父母都暴露.
- 后代接受了行为测试 (莫里斯水迷宫,被动回避) 和脑脊液BDNF分析.
主要成果:
- 暴露于乙醇的父母的男性和女性后代的空间记忆受损.
- 空间学习缺陷仅在暴露于乙醇的母体的雌性后代中观察到.
- 被动避开记忆检索在男性后代中受损,只有在双重暴露组中女性的缺陷. 在男性中,BDNF水平下降,在女性中增加,来自暴露于乙醇的.
结论:
- 在受孕前父母暴露于乙醇,对后代的学习和记忆有性别特异性的影响.
- 雌性后代可能在某些记忆任务中表现出弹性,可能是由于焦虑水平较高.
- 这些发现凸显了父亲和母亲饮酒对认知功能的复杂,跨代影响.
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