通过使用遗传预测因子,研究了179种脂质物种与7种疾病之间的联系
Linda Ottensmann1, Rubina Tabassum2, Sanni E Ruotsalainen2
1Institute for Molecular Medicine Finland, HiLIFE, University of Helsinki, Helsinki, Finland; Centre for Genomic and Experimental Medicine, Institute of Genetics and Cancer, University of Edinburgh, Western General Hospital, Edinburgh, United Kingdom.
EBioMedicine
|March 29, 2025
概括
遗传预测因素揭示了特定的脂类物种与诸如心脏病,与年龄有关的黄斑变性和胆结石等疾病之间的因果关系. 这项研究为疾病风险预测和治疗策略提供了新的途径.
科学领域:
- 心血管遗传学 心血管遗传学
- 代谢学 代谢学 代谢学
- 疾病风险预测 疾病风险预测
背景情况:
- 全基因组关联研究 (GWAS) 将脂质物种基因与疾病联系起来,但因果关系尚不清楚.
- 了解血脂物种在疾病病因学中的作用对于公共卫生至关重要.
研究的目的:
- 研究血脂类物种对七种主要疾病风险的因果关系.
- 利用脂类物种的遗传预测因子来阐明疾病关联.
主要方法:
- 开发了179种脂质物种的遗传预测因子,使用芬兰个体的基因组位置和多基因分数 (PGS).
- 在三个大型队列 (FinnGen,英国生物银行,苏格兰一代) 进行了疾病关联分析.
- 采用单变量和多变量门德尔随机化 (MR) 来评估脂质物种对疾病风险的独立影响.
主要成果:
- 多基因分数解释了34种脂质物种超过4%的变异;与所有七种疾病相关的高影响位变异.
- 多变量MR (MVMR) 证实阿波利波蛋白B (ApoB) 与缺血性心脏病有因果关系.
- 特定的氨酸乙醇胺变体显示出对与年龄相关的黄斑变性有保护作用,独立于HDL胆固醇.
- MVMR表明,四种含有甲基酸的脂质在胆固醇病风险中起着保护作用,独立于总胆固醇.
结论:
- 脂类物种的遗传预测因素为疾病风险机制提供了宝贵的见解.
- 确定了脂类物种与与年龄相关的黄斑变性和胆病之间的潜在因果关系.
- 这些发现表明疾病风险预测和治疗干预的新目标.
相关概念视频
01:11Genome-wide Association Studies-GWAS
12.6K
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...
12.6K
01:31Lipid-derived Compounds in the Human Body
5.5K
Fats and lipids are crucial components in the human body. Some lipid-derived compounds, such as fat-soluble vitamins, eicosanoids, lipoproteins, and glycolipids, also play unique roles to support various biological processes .
Fat-soluble Vitamins
Fat-soluble vitamins, including vitamins A, D, E, and K, are required in minimal quantities, but their deficiencies can lead to severely abnormal physiological conditions. For example, vitamin A deficiency can cause night blindness, dry skin,...
Fat-soluble Vitamins
Fat-soluble vitamins, including vitamins A, D, E, and K, are required in minimal quantities, but their deficiencies can lead to severely abnormal physiological conditions. For example, vitamin A deficiency can cause night blindness, dry skin,...
5.5K
01:24Overview of Lipid Metabolism
7.0K
Lipid metabolism is a crucial process in the human body that involves the synthesis and degradation of lipids. This process is essential for energy production, cell membrane formation, and hormone production, among other functions.
Lipolysis: The Breakdown of Lipids:
Lipolysis is the process of breaking down lipids, particularly triglycerides, into glycerol and fatty acids. This process typically occurs in the adipose tissue and is triggered by various hormones, including glucagon and...
Lipolysis: The Breakdown of Lipids:
Lipolysis is the process of breaking down lipids, particularly triglycerides, into glycerol and fatty acids. This process typically occurs in the adipose tissue and is triggered by various hormones, including glucagon and...
7.0K
01:29Pharmacogenetic Phenotypes: Alterations in Pharmacokinetics, Drug Targets and Biologic Milieu
159
Genetic variations significantly influence drug response through pharmacokinetics, receptor interactions, and biologic milieu modifications. Pharmacokinetic alterations impact drug metabolism and clearance, affecting efficacy and toxicity. Variants in drug-metabolizing enzymes, such as CYP2C9 and CYP2C19, alter drug activation and elimination. For example, CYP2C9 loss-of-function variants require lower warfarin doses to prevent excessive bleeding, while CYP2C19 variants reduce clopidogrel...
159
01:29Pharmacogenomics: Identification of New Drug Targets
121
Advances in genomics have profoundly influenced drug discovery by increasing both the speed and accuracy of pharmaceutical development. Pharmacogenomics, which examines how genetic variation influences drug response, facilitates the identification of novel therapeutic targets and enables patient stratification for personalized treatment. These strategies contribute to improved drug efficacy, minimized adverse effects, and more efficient clinical trial design.Mapping genetic differences...
121
01:25Blood Studies for Cardiovascular System III: Serum Lipid Profile
854
Understanding serum lipids is crucial for maintaining cardiovascular health and preventing heart disease and stroke.
Serum lipids are fats and fatty substances in the blood and are crucial for various bodily functions, including energy storage, cellular structure, and hormone production. Serum lipids consist of cholesterol, triglycerides, and phospholipids.
Cholesterol is a soft, fat-like substance found in all body cells. It is crucial for producing hormones, vitamin D, and substances that aid...
Serum lipids are fats and fatty substances in the blood and are crucial for various bodily functions, including energy storage, cellular structure, and hormone production. Serum lipids consist of cholesterol, triglycerides, and phospholipids.
Cholesterol is a soft, fat-like substance found in all body cells. It is crucial for producing hormones, vitamin D, and substances that aid...
854