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Related Concept Videos

Genome-wide Association Studies-GWAS01:11

Genome-wide Association Studies-GWAS

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Generation of High Quality Chromatin Immunoprecipitation DNA Template for High-throughput Sequencing (ChIP-seq)
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Published on: April 19, 2013

Genome-Wide Association Study Identifies Human Genetic Variants Associated with Systemic Chronic Inflammation.

Jiayi Xue1, Wenxin Sun2, Peipei Liu1,3

  • 1School of Public Health, North China University of Science and Technology, Tangshan, China.

Omics : a Journal of Integrative Biology
|June 11, 2026
PubMed
Summary
This summary is machine-generated.

This study identifies genetic variants associated with chronic low-grade inflammation, a key driver of disease. Findings highlight the role of apolipoprotein E (APOE) and suggest spleen involvement in inflammatory processes.

Keywords:
UK biobankgenome-wide association studysystemic chronic inflammationtissue expression

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Area of Science:

  • Genetics and Molecular Biology
  • Immunology
  • Computational Biology

Background:

  • Chronic low-grade inflammation is a significant factor in numerous diseases throughout life.
  • The genetic underpinnings of chronic low-grade inflammation remain largely uncharacterized.
  • Previous genome-wide association studies (GWAS) for this condition were lacking.

Purpose of the Study:

  • To identify genetic variants associated with chronic low-grade inflammation.
  • To explore the genetic architecture of inflammation across the human lifespan.
  • To investigate the relationship between genetic factors and inflammatory traits.

Main Methods:

  • A genome-wide association study (GWAS) was conducted on a large European cohort (n=217,984).
  • The low-grade inflammation score (INFLA-score) was used to quantify inflammation.
  • Over 6 million single nucleotide polymorphisms (SNPs) were analyzed, followed by gene and tissue expression analysis.

Main Results:

  • 20,182 significant SNPs were identified across 194 loci, with genome-wide significance (p < 5 × 10^-8).
  • The lead SNP, rs429358 in apolipoprotein E (APOE), showed a highly significant association (p = 8.69 × 10^-166).
  • 470 genes were implicated, including phosphodiesterase 4B (p = 1.67 × 10^-22), and 15 novel SNPs were reported. Significant associations were found in spleen and whole blood tissue.

Conclusions:

  • This GWAS successfully identified numerous genetic variants linked to chronic low-grade inflammation.
  • The findings implicate specific genes and pathways, such as APOE and phosphodiesterase 4B, in inflammatory regulation.
  • A notable association between chronic low-grade inflammation and spleen tissue was uncovered, suggesting its role in systemic inflammation.