一个多基因的葡萄皮质激素暴露评分和与HPA轴相关的DNA甲基化与妊娠性表观遗传衰老有关
1Department of Epidemiology and Biostatistics, University at Albany College of Integrated Health Sciences, Rensselaer, NY, USA.
Epigenetics
|February 26, 2025
概括
通过DNA甲基化测量,产前暴露于葡萄皮质激素调节与减缓妊娠表观遗传衰老 (GEA) 有关. 这种表观遗传衰老模式可能表明新生儿的风险,有些影响在性别之间存在差异.
科学领域:
- 表观遗传学和发育生物学
- 内分泌学和新陈代谢学
- 围产期健康 围产期健康
背景情况:
- 妊娠表观遗传衰老 (GEA) 提供了关于产前暴露和产后健康风险的见解.
- 怀孕期间的心理社会逆境可能会影响GEA,但潜在的分子机制需要进一步调查.
- 葡萄糖皮质激素调节和下丘脑-垂体-上腺 (HPA) 轴基因甲基化与GEA有关,但尚未完全理解.
研究的目的:
- 为了研究多基基因糖皮质激素暴露评分 (PGES) 和HPA轴基因甲基化与GEA之间的关联.
- 检查这些关联中的潜在的性别特异性差异.
主要方法:
- 对200个种族/种族多样化,社会弱势的孕妇和婴儿进行前性队列研究.
- 对带血进行的DNA甲基化分析.
- 来自对合成德甲敏感的CpG的PGES;通过因子分析总结HPA轴基因甲基化 (NR3C1,HSD11B2,FKBP5).
主要成果:
- 较高的PGES与减速的GEA相关 (β = -1.12,p = 0.02).
- 几个NR3C1和FKBP5甲基化因子评分也与减速的GEA有关 (所有p <0.05).
- 对于FKBP5因子得分3的显著性别相互作用表明男性的GEA减速,但女性没有 (β = -0.34,p = 0.02).
结论:
- 与葡萄糖皮质醇调节相关的DNA甲基化与出生时表观遗传衰老表型减缓有关.
- 这一发现表明,与这些表观遗传标记相关的潜在新生儿风险.
- 观察到的性别特异性相互作用强调了产前暴露,表观遗传学和性别在发育轨迹之间的复杂相互作用.
更多相关视频
11:31Rapid Fractionation and Isolation of Whole Blood Components in Samples Obtained from a Community-based Setting
Published on: November 30, 2015
16.0K
14:56Sample Preparation to Bioinformatics Analysis of DNA Methylation: Association Strategy for Obesity and Related Trait Studies
Published on: May 6, 2022
4.4K
相关概念视频
Epigenetic Regulation
30.9K
Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
30.9K
Genomic Imprinting and Inheritance
33.1K
Diploid organisms inherit genetic material through chromosomes from both parents. Copies of the same gene are known as alleles. In most cases, both alleles are simultaneously expressed and allow various cellular processes to function optimally. If one of the alleles is missing or mutated, the expression of the other allele can compensate; however, this is not true for all genes.
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...
33.1K
Hypothalamic-Pituitary Axis
58.9K
The response to stress—be it physical or psychological, acute or chronic—involves activation of the Hypothalamic-Pituitary-Adrenal (HPA) axis. The HPA axis is part of the neuroendocrine system because it involves both neuronal and hormonal communication. Its function is to regulate homeostatic systems—metabolic, cardiovascular, and immune—providing the necessary means to respond to a stressor.
58.9K
Human Genetics
516
Human genetics provides a profound framework for understanding the interplay between genetic predispositions and human psychology. At the heart of this discipline lies the study of how genes influence physical traits, behaviors, and susceptibility to diseases. Each person carries a unique genetic code that subtly or significantly shapes their psychological and behavioral landscape.
The complex relationship between genetics and psychology is observable through common biological components such...
The complex relationship between genetics and psychology is observable through common biological components such...
516
Gene-Environment Interactions
236
Gene expression is a dynamic process that is significantly influenced by environmental factors. This interaction underlies the complex nature of biological development and the phenotypic differences observed among individuals, even among those with identical genetic makeups. Factors such as radiation, temperature, behavior, nutrition, and stress play pivotal roles in determining how genes are expressed. The concept of the reaction range is central to understanding this interaction. It posits...
236
