出生和儿童时期的表观遗传钟血压轨迹:一个潜在的出生队列研究
Jie Hu1,2, Anat Yaskolka Meir1, Xiumei Hong3
1Department of Epidemiology (J.H., A.Y.M., F.B.H., L.L.), Harvard T.H. Chan School of Public Health, Boston, MA.
Hypertension (Dallas, Tex. : 1979)
|August 1, 2024
概括
甲基化妊娠年龄在出生时的加速与儿童血压 (BP) 轨迹的降低有关,在男孩中观察到的效果更强烈. 这一发现提供了关于高血压和基于性别的心血管风险的发育起源的见解.
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.
- 儿科健康 儿科健康
- 心血管流行病学心血管流行病学
背景情况:
- 胎儿成熟度的生物标志物甲基化妊娠年龄 (GAmAge) 与儿童血压 (BP) 轨迹之间的关系仍然没有特征.
- 了解这种联系对于识别心血管风险的早期标志物至关重要.
研究的目的:
- 调查GAmAge在出生时加速对儿童BP轨迹发展的影响.
- 探索这种关联中的潜在的性别特异性差异.
主要方法:
- 分析了940名儿童 (500名男孩,440名女孩) 的队列,其中包括3至15岁的带血DNA甲基化和血压数据.
- 追踪了心和腹血压百分位数,时间序列聚类确定了不同的血压轨迹.
- 使用儿科表观遗传钟计算了表观遗传年龄加速 (内在和外在).
主要成果:
- 无论是外在的还是内在的年龄加速都显示出与重复测量BP的反向关联.
- 在男孩中发现了外部年龄加速和心血压百分位之间显著的反向关联,但在女孩中没有.
- 在早产的女孩中,两种类型的年龄加速与缩血压百分位相反相关. 在BP轨迹的关联中观察到显著的性别差异.
结论:
- 出生时的GAmAge加速与儿童高血压相反相关,男孩的影响更为明显.
- 这些发现有助于了解高血压的发育起源和心血管风险的性别差异.
更多相关视频
13:11Optimized Analysis of DNA Methylation and Gene Expression from Small, Anatomically-defined Areas of the Brain
Published on: July 12, 2012
18.8K
04:20Author Spotlight: Exploring Microglial Interactions with Stress-Response Circuitry Using the Limited Bedding and Nesting Model
Published on: July 12, 2024
1.5K
相关概念视频
Factors affecting Blood pressure
3.1K
Several physiological and lifestyle factors influence blood pressure (BP). Understanding these factors is crucial as they are significant in patient education and blood pressure management.
Physiological Factors:
Physiological Factors:
3.1K
Gene-Environment Interactions
276
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...
276
Hypertension and Regulation of Blood Pressure
2.0K
Hypertension, the most common cardiovascular disease, is diagnosed through repeated measurements of elevated blood pressure. Its risks, including damage to the kidney, heart, and brain, are directly proportional to blood pressure levels. Starting from 115/75 mm Hg, the risk of cardiovascular disease doubles with each increment of 20/10 mm Hg. The diagnosis relies on blood pressure measurements, not on patient symptoms, as hypertension is often asymptomatic until end-organ damage is imminent or...
2.0K
Nature and Nurture
20.4K
Many human characteristics, like height, are shaped by both nature—in other words, by our genes—and by nurture, or our environment. For example, chronic stress during childhood inhibits the production of growth hormones and consequently reduces bone growth and height. Scientists estimate that 70-90% of variation in height is due to genetic differences among individuals, and 10-30% of variation in height is due to differences in the environments that individuals experience,...
20.4K
Epigenetic Regulation
31.0K
Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
31.0K
Circadian Rhythms and Gene Regulation
4.0K
The biological clock is involved in many aspects of regulating complex physiology in all animals. It was in 1935 when German zoologists, Hans Kalmus and Erwin Bünning, discovered the existence of circadian rhythm in Drosophila melanogaster. However, the internal molecular mechanisms behind the circadian clock remained a mystery until 1984, when Jeffrey C. Hall, Michael Rosbash, and Michael W. Young discovered the expression of the Per gene oscillating over a 24-hour cycle. In subsequent...
4.0K
