Meta-genetic association of rheumatoid arthritis and PTPN22 using PedGenie 2.1
Author Information
Author(s): Curtin Karen, Wong Jathine, Allen-Brady Kristina, Camp Nicola J
Primary Institution: University of Utah School of Medicine
Hypothesis
Can PedGenie 2.1 effectively detect genetic associations with rheumatoid arthritis using data from multiple studies?
Conclusion
The study supports previous findings that the PTPN22 gene is associated with rheumatoid arthritis, demonstrating increased power to detect associations by using family-based samples.
Supporting Evidence
- The study corroborated previous findings for a panel of 14 SNP markers associated with rheumatoid arthritis.
- Using family-based samples increased the power to detect genetic associations.
- PedGenie 2.1 allows for valid meta-analysis of combined family-based and case-control studies.
Takeaway
Researchers used a special tool called PedGenie to look at genetic data from many people to see if a specific gene is linked to rheumatoid arthritis. They found that this gene is indeed related to the disease.
Methodology
The study used data from the North American Rheumatoid Arthritis Consortium to perform meta-association testing of PTPN22 SNPs and rheumatoid arthritis phenotypes.
Potential Biases
Potential biases may arise from the selection of study populations and the methods used for data collection.
Limitations
The study may not account for all potential confounding factors and relies on the quality of the data from the consortium.
Participant Demographics
Participants included Caucasian individuals from affected sibling-pair families and independent non-diseased controls.
Statistical Information
P-Value
<0.001
Confidence Interval
95% CI
Statistical Significance
p<0.05
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