Genome-Wide Association Analysis of Soluble ICAM-1 Concentration Reveals Novel Associations
Author Information
Author(s): Guillaume Paré, Paul M. Ridker, Lynda Rose, Maja Barbalic, Josée Dupuis, Abbas Dehghan, Joshua C. Bis, Emelia J. Benjamin, Dov Shiffman, Alexander N. Parker, Daniel I. Chasman
Primary Institution: Brigham and Women's Hospital, Harvard Medical School
Hypothesis
We hypothesized that other, weaker, common genetic determinants of sICAM-1 remained to be discovered.
Conclusion
The study identified four novel genetic loci associated with soluble ICAM-1 levels, enhancing our understanding of its genetic regulation.
Supporting Evidence
- Four novel associations were identified in the vicinity of NFKBIK, PNPLA3, RELA, and SH2B3 loci.
- The study confirmed previously reported associations at the ABO and ICAM1 loci.
- 67 SNPs passed the genome-wide significance threshold for association with sICAM-1.
- Clinical covariates explained 19.5% of the variance in sICAM-1 levels.
Takeaway
Scientists found new genes that affect a marker in the blood related to inflammation, which can help us understand heart disease and other health issues.
Methodology
A genome-wide association study was performed evaluating 334,295 SNPs in 22,435 apparently healthy women.
Potential Biases
Potential bias due to population stratification was addressed using principal component analysis.
Limitations
The study focused only on women of European ancestry, which may limit the generalizability of the findings.
Participant Demographics
Participants were North American women from the Women's Health Study with no prior history of major chronic illness.
Statistical Information
P-Value
5.4×10−9
Confidence Interval
95% CI 1.05–1.43
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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