产前酒精暴露和心理健康结果:对DNA甲基化特征的双样本孟德尔随机化研究
medRxiv : the preprint server for health sciences
|February 12, 2026
概括
产前酒精暴露 (PAE) 可能通过DNA甲基化 (DNAm) 变化影响心理健康风险. 这项研究使用了门德尔的随机化来将与PAE和胎儿酒精谱系障碍 (FASD) 相关的DNAm位点与精神病的结果联系起来.
科学领域:
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 神经科学是一个神经科学.
- 精神病学流行病学 精神病学流行病学
背景情况:
- 产前酒精暴露 (PAE) 与胎儿酒精谱系障碍 (FASD) 有关,增加神经发育和心理健康问题的风险.
- 连接PAE与心理健康缺陷的生物机制尚未完全理解.
- 基因甲基化 (DNAm) 是一个关键的表观遗传机制,对PAE等环境因素有反应.
研究的目的:
- 调查与PAE或FASD相关的DNA甲基化位点是否与11种精神病结局有遗传联系.
- 探索DNAm作为PAE和心理健康状况之间的调解者的潜在作用.
主要方法:
- 采用两个样本的孟德尔随机化 (MR) 框架.
- 利用了大规模基因组广泛关联研究 (GWAS) 和DNA甲基化联盟 (GoDMC) mQTL数据库的遗传学总结统计数据.
- 分析了FASD和PAE模式的表观基因组范围的关联研究中的DNAm loci.
主要成果:
- 确定了DNAm位点和精神病结果之间的显著关联,精神分裂症和双相情感障碍显示了最多的相关位点.
- 功能分析显示,与胚胎发育和神经元分化相关的途径中相关的DNAm loci的丰富.
- 区域丰富分析表明,与FASD相关的位点通常位于像增强剂这样的远程调节元件中.
结论:
- 基因甲基化可能是将产前酒精暴露与增加心理健康风险联系起来的关键机制.
- 该研究强调了针对PAE的时间特异性表观遗传脆弱性的复杂性.
- 在推进表观遗传流行病学研究方面证明了门德尔随机化的实用性.
更多相关视频
14:56Sample Preparation to Bioinformatics Analysis of DNA Methylation: Association Strategy for Obesity and Related Trait Studies
Published on: May 6, 2022
5.2K
05:13Preclinical Model of Prenatal Delta-9-Tetrahydrocannabinol Exposure to Assess Its Impact on Neurodevelopmental Outcomes
Published on: February 28, 2025
743
相关概念视频
Stress and Mental Health
964
Chronic stress profoundly affects mental health, significantly influencing mood, behavior, and overall quality of life. Research closely links chronic stress with mental health conditions such as depression, anxiety, and substance use disorders. Ongoing exposure to stress can lead to physiological and psychological changes, initiating a cycle of emotional distress and maladaptive coping mechanisms.
Individuals with depression often experience challenges in both their personal and professional...
Individuals with depression often experience challenges in both their personal and professional...
964
Random Sampling Method
15.0K
Sampling is a technique to select a portion (or subset) of the larger population and study that portion (the sample) to gain information about the population. Data are the result of sampling from a population. The sampling method ensures that samples are drawn without bias and accurately represent the population. Because measuring the entire population in a study is not practical, researchers use samples to represent the population of interest. Among the various sampling methods used by...
15.0K
Bioequivalence Experimental Study Designs: Completely Randomized and Randomized Block Designs
256
Body:Bioequivalence experimental study designs are crucial methodologies used in evaluating and comparing the bioavailability of different drug products. These designs are categorized into various types: completely randomized, randomized block, repeated measures, cross and carry-over, and Latin square designs.Completely randomized designs involve randomly allocating treatments to all subjects participating in the experiment. This allocation is achieved by assigning unique random numbers to...
256
Predicting Reaction Outcomes
11.0K
Kinetics describes the rate and path by which a reaction occurs. In contrast, thermodynamics deals with state functions and describes the properties, behavior, and components of a system. It is not concerned with the path taken by the process and cannot address the rate at which a reaction occurs. Although it does provide information about what can happen during a reaction process, it does not describe the detailed steps of what appears on an atomic or a molecular level. On the other hand,...
11.0K
Random Error
9.8K
Random or indeterminate errors originate from various uncontrollable variables, such as variations in environmental conditions, instrument imperfections, or the inherent variability of the phenomena being measured. Usually, these errors cannot be predicted, estimated, or characterized because their direction and magnitude often vary in magnitude and direction even during consecutive measurements. As a result, they are difficult to eliminate. However, the aggregate effect of these errors can be...
9.8K
Random Variables
17.9K
A random variable is a single numerical value that indicates the outcome of a procedure. The concept of random variables is fundamental to the probability theory and was introduced by a Russian mathematician, Pafnuty Chebyshev, in the mid-nineteenth century.
Uppercase letters such as X or Y denote a random variable. Lowercase letters like x or y denote the value of a random variable. If X is a random variable, then X is written in words, and x is given as a number.
For example, let X = the...
Uppercase letters such as X or Y denote a random variable. Lowercase letters like x or y denote the value of a random variable. If X is a random variable, then X is written in words, and x is given as a number.
For example, let X = the...
17.9K
