解密导致早产的机制,通过GWAS后集成多omics数据的解密机制
Esha Bhattacharjee1,2, Ramachandran Thiruvengadam3,4, Divyank Varshney1,2
1Biotechnology Research and Innovation Council - National Institute of Biomedical Genomics (BRIC-NIBMG), PO: NSS, Kalyani, West Bengal, India.
iScience
|December 9, 2025
概括
遗传因素有助于自发早产 (sPTB). 一项全基因组研究确定了关键的SNP,其中66个SNP以78%的准确度预测sPTB风险,有助于早期识别和干预.
科学领域:
- 遗传学 遗传学是一种遗传学.
- 生殖健康 生殖健康
- 围产儿医学 围产儿医学
背景情况:
- 在37周之前的自发早产 (sPTB) 是新生儿死亡的主要原因.
- sPTB与后代的长期健康问题有关.
- 了解sPTB的遗传基础对于预防和管理至关重要.
研究的目的:
- 调查印度人群中自发早产的遗传结构.
- 通过全基因组关联研究 (GWAS) 识别与sPTB相关的遗传变异.
- 探索已识别的基因变异对基因表达和甲基化的功能影响.
主要方法:
- 在GARBH-Ini印度队列中进行了全基因组关联研究 (GWAS).
- 与欧洲队伍进行跨民族复制分析.
- 综合多omics数据 (基因型,DNA甲基化,基因表达) 和临床数据.
- 利用机器学习来开发sPTB风险的预测模型.
主要成果:
- 确定了40个与sPTB显著相关的单核酸多态 (SNP),其中rs57480735达到全基因组显著性 (p = 2.3 × 10^-8).
- 跨种族复制在印度和欧洲队列中确定了212个与sPTB相关的SNP.
- 确定了一组具有机器学习的66-SNP面板,在sPTB预测中获得了0.78的AUC.
- 发现跨种族变异会影响炎症基因甲基化/表达,而特定于种群的变异会影响胎盘床形成基因.
结论:
- 遗传因素在自发早产中起着重要作用.
- 66个SNP的组合可以有效地预测sPTB风险,从而实现潜在的早期分层.
- 研究结果强调了不同种族群体中影响sPTB的独特遗传机制,影响炎症和胎盘发育途径.
相关概念视频
Genomics
39.6K
Genomics is the science of genomes: it is the study of all the genetic material of an organism. In humans, the genome consists of information carried in 23 pairs of chromosomes in the nucleus, as well as mitochondrial DNA. In genomics, both coding and non-coding DNA is sequenced and analyzed. Genomics allows a better understanding of all living things, their evolution, and their diversity. It has a myriad of uses: for example, to build phylogenetic trees, to improve productivity and...
39.6K
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


