蛋白质学预测疾病在很大程度上反映了环境风险
medRxiv : the preprint server for health sciences
|September 5, 2025
概括
血蛋白预测疾病风险, 但大多数是环境传感器, 而不是直接的原因. 这项研究揭示了蛋白质生物标志物反映了生活方式因素,
科学领域:
- 蛋白质组学
- 生物标志物发现
- 环境健康
背景情况:
- 已知与年龄相关的疾病风险的预测指标是等离子体蛋白质特征.
- 蛋白质生物标志物与疾病预测相关的基本机制尚不清楚.
研究的目的:
- 对19种与年龄相关的疾病的蛋白质生物标志物进行鉴定.
- 区分因果关系和非因果关系的蛋白质疾病.
- 研究环境因素在塑造蛋白质性疾病关联中的作用.
主要方法:
- 在英国生物库 (N=45,438) 中对2923个血蛋白水平与疾病发病率进行观察分析.
- 孟德尔随机化 (MR) 评估蛋白质疾病关系的因果关系.
- 蛋白质与环境因素的关联分析,特别是吸烟和饮酒.
主要成果:
- 只有8%的观察到的蛋白质疾病相关性显示出MR的因果关系.
- 超过90%的与肺癌和COPD相关的蛋白质与吸烟有关.
- 开发了一种吸烟蛋白质评分 (SmokingPS),证明了血蛋白质作为吸烟指数的实用性.
- 许多与疾病相关的蛋白质似乎是环境暴露的指标,而不是直接的疾病驱动因素.
结论:
- 血蛋白质在很大程度上反映了环境暴露 (例如吸烟),而不是仅仅是疾病特异性机制.
- 蛋白质生物标志物可以作为环境风险因素对健康的影响的客观测量.
- 这些发现对预防疾病和解释治疗或暴露监测的蛋白质疾病关联有影响.
相关概念视频
Proteomics
7.9K
A proteome is the entire set of proteins that a cell type produces. We can study proteomes using the knowledge of genomes because genes code for mRNAs, and the mRNAs encode proteins. Although mRNA analysis is a step in the right direction, not all mRNAs are translated into proteins.
Proteomics is the study of proteomes' function. It involves the large-scale systematic study of the proteome to denote the protein complement expressed by a genome. Scientist Mark Wilkins coined the term...
Proteomics is the study of proteomes' function. It involves the large-scale systematic study of the proteome to denote the protein complement expressed by a genome. Scientist Mark Wilkins coined the term...
7.9K
Genome-wide Association Studies-GWAS
14.1K
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...
14.1K
Gene-Environment Interactions
433
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...
433


