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Updated: Sep 9, 2025

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基因培养对药物使用的影响的证据
medRxiv : the preprint server for health sciences
|September 5, 2025
概括
父母遗传学通过遗传培养影响后代的物质使用,特别是吸烟量. 这种影响是阶段特定的,对启动的影响最小,并且涉及父母双方的平等贡献.
科学领域:
- 行为遗传学
- 精神遗传学
- 药物使用研究
背景情况:
- 药物使用障碍 (SUD) 呈现出家族聚合.
- 基因培养,即父母基因通过环境对后代的影响,是直接遗传之外的关键因素.
- 了解基因培养在SUD中的作用对于制定有针对性的干预措施至关重要.
研究的目的:
- 研究遗传培养对烟草,酒精和大麻使用的影响.
- 为了区分基因培养效应与直接基因传播.
- 探索基因培养对药物使用行为的特定阶段和特定父母的影响.
主要方法:
- 在最多15863名来自生命线队列的成年人中使用了传递和非传递的多基因分数,其中至少有一个基因型的父母.
- 评估了基因培养对吸烟量 (每天香烟,一年包) 和开始吸烟,酒精和大麻的影响.
- 进行调解分析以确定父母吸烟影响后代吸毒的途径.
主要成果:
- 遗传培养显著影响吸烟量 (每天的香烟:β=0.03;包装年:β=0.02),分别解释了18.8%和28.6%的遗传影响.
- 基因培养对烟草或大麻的开始影响很小,表明阶段特异性影响.
- 母亲和父亲的遗传培养对后代吸烟量有同等的贡献,而母亲吸烟的比例更高.
结论:
- 遗传培养在吸烟量上起着重要作用,但不是开始吸烟,这表明特定阶段的影响.
- 两个父母对吸烟量有着同等的遗传培养影响,父母的吸烟会调解这些影响.
- 未来的研究和干预措施应考虑药物使用中的特定阶段和特定父母的遗传培养效应.
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