针对尿路6 - 硫胺的祖先特异性遗传影响:一个多祖先GWAS元分析
Magdalena Żebrowska1, Ziwei Zhang2, Gwo-Tsann Chuang3
1Medical University of Vienna.
Research square
|November 24, 2025
概括
影响关键的黑激素代谢产物6-硫基氨 (aMT6s) 的遗传因素在不同祖先中得到了探索. 虽然没有发现主要的遗传位置,但多基因风险得分将aMT6s与2型糖尿病和睡眠时间联系起来.
科学领域:
- 遗传学 是一个遗传学.
- 代谢学 代谢学 代谢学
- 时间生物学 时间生物学
背景情况:
- 黑色素对昼夜节律,新陈代谢和免疫力至关重要.
- 它的代谢物,6-硫基氨 (aMT6s),是癌症和代谢障碍的生物标志物.
- aMT6s的遗传基础在很大程度上是未知的,之前的研究仅限于东亚人群.
研究的目的:
- 进行第一个多祖先全基因组协会对尿道aMT6s.s进行元分析.
- 在不同种群中识别aMT6s的遗传决定因素.
- 调查aMT6s遗传风险得分与全现象特征的关联.
主要方法:
- 使用MR-MEGA和METAL进行的全基因组关联研究 (GWAS) 在五个队列 (n=11,744) 的元分析.
- 从尿样中测量aMT6s.
- 在大型生物库中使用PRS-CSx构建和全现象关联测试多基因风险评分 (PRS).
主要成果:
- 没有确定aMT6s的全基因组显著位置;之前报告的东亚信号没有复制.
- 23个位点达到暗示意义,其中8个由两种分析方法支持.
- 两个位点表现出祖先特异性的异质性,突出了人口背景.
- PRS分析表明aMT6s基因与2型糖尿病和睡眠时间之间存在显著的关联.
结论:
- 黑激素代谢 (aMT6s) 的遗传结构取决于背景,并受到祖先的影响.
- 祖先对于解释生物标志物GWAS的发现至关重要.
- 与aMT6s相关的遗传因素与代谢和昼夜特征有关.
相关概念视频
Human Genetics
1.4K
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...
1.4K
Genome-wide Association Studies-GWAS
15.2K
Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
GWAS does not require the identification of the target gene involved in...
GWAS does not require the identification of the target gene involved in...
15.2K
Circadian Rhythms and Gene Regulation
4.5K
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...
4.5K
Background and Environment Affect Phenotype
7.4K
Although the genetic makeup of an organism plays a major role in determining the phenotype, there are also several environmental factors, such as temperature, oxygen availability, presence of mutagens, that can alter an organism’s phenotype.
An example of how genetic background affects phenotype can be seen in horses. The Extension gene in horses is responsible for their coat color. A wild-type gene (EE) produces black pigment in the coat, while a mutant gene (ee) produces red pigment. A...
An example of how genetic background affects phenotype can be seen in horses. The Extension gene in horses is responsible for their coat color. A wild-type gene (EE) produces black pigment in the coat, while a mutant gene (ee) produces red pigment. A...
7.4K


