识别与糖摄入相关的遗传变异,并评估与心血管结果的遗传相关性
Suzanne Janzi1, Stina Ramne2, Minghao Kou3
1Nutritional Epidemiology, Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden.
Clinical nutrition (Edinburgh, Scotland)
|October 7, 2025
概括
这项全基因组关联研究确定了与糖摄入相关的遗传变异,揭示了自由和甜味糖消费与心血管疾病风险因素之间的联系. 这些发现突出了特定基因在糖消费模式和相关健康结果中的作用.
科学领域:
- 营养遗传学和心血管流行病学
- 人类遗传学和代谢疾病研究研究
背景情况:
- 糖摄入量与心血管疾病 (CVD) 风险之间的联系尚不清楚,对不同类型糖的遗传关联的研究有限.
- 目前对糖消费的遗传标记的研究很少,特别是针对特定的糖子组的研究.
研究的目的:
- 进行全基因组关联研究 (GWAS),以确定与自由糖和甜味糖摄入相关的遗传变异.
- 通过使用遗传标记来探索糖摄入量与心血管疾病风险之间的关系.
- 调查这些关联与BMI,吸烟和教育等因素的独立性.
主要方法:
- 利用两个大型队列,马尔默饮食和癌症研究 (n=25,660) 和英国生物银行 (n=141,437),以确定与糖摄入相关的单核酸多态 (SNP).
- 检查了身体质量指数 (BMI),吸烟状况和教育水平对已识别的SNP关联的影响.
- 评估了不同人群中糖摄入量和心血管结果之间的遗传相关性.
主要成果:
- GWAS在FTO和FGF21基因附近的自由糖摄入量和SNP之间以及在第18号染色体上的基因间区域中发现了显著的关联.
- 甜味糖摄入量显示,FGF21基因附近的SNP关联.
- 遗传相关性揭示了两种糖摄入类型和较低的高密度胆固醇,增加的甘油三和心力衰竭,缺血性中风和心房动的更高风险之间的联系.
结论:
- 在FGF21和FTO基因附近的SNP与自由糖和甜味糖摄入量之间发现了显著的关联.
- 遗传相关性证实了糖摄入模式与关键心血管疾病风险因素和结果之间的联系.
- 这些遗传洞察力有助于理解饮食,遗传学和心血管健康之间的复杂关系.
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
15.3K
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...
15.3K
Coronary Artery Disease I: Introduction
878
Coronary Artery Disease (CAD): An Overview with Scientific InsightsCoronary Artery Disease (CAD), often referred to as C-A-D, is a prevalent blood vessel disorder classified under the broader category of atherosclerosis. Atherosclerosis is a pathological process characterized by the hardening and narrowing of arteries due to the accumulation of atherosclerotic plaques. These plaques are composed of cholesterol, fatty substances, inflammatory cells, calcium, and fibrin, reducing blood flow to...
878
Comparing Copy Number Variations and SNPs
18.6K
Sequencing of the human genome has opened up several best-kept secrets of the genome. Scientists have identified thousands of genome variations that exist within a population. These variations can be a single nucleotide or a larger chromosomal variation.
Copy number variations or CNVs are the structural variations that cover more than 1kb of DNA sequence. The single nucleotide polymorphism (SNP), on the other hand, is a single nucleotide change or a point mutation that is found in more than 1%...
Copy number variations or CNVs are the structural variations that cover more than 1kb of DNA sequence. The single nucleotide polymorphism (SNP), on the other hand, is a single nucleotide change or a point mutation that is found in more than 1%...
18.6K
Incomplete Dominance
29.6K
Gregor Mendel's work (1822 - 1884) was primarily focused on pea plants. Through his initial experiments, he determined that every gene in a diploid cell has two variants called alleles inherited from each parent. He suggested that amongst these two alleles, one allele is dominant in character and the other recessive. The combination of alleles determines the phenotype of a gene in an organism.
29.6K
Glucose Transporters
27.2K
Glucose transporters facilitate the transport of glucose across the cell membrane. In addition to glucose, some glucose transporters can also aid the movement of other hexoses such as fructose, mannose, and galactose.
Facilitated diffusion-glucose transporters (GLUTs) are encoded by the solute-linked carrier (SLC) family 2, subfamily A gene family, or SLC2A. The 14 GLUT protein members are distributed into three classes:
Facilitated diffusion-glucose transporters (GLUTs) are encoded by the solute-linked carrier (SLC) family 2, subfamily A gene family, or SLC2A. The 14 GLUT protein members are distributed into three classes:
27.2K


