Study on CCR5 Polymorphism in Arthritis
Author Information
Author(s): Lindner Ewald, Nordang Gry BN, Melum Espen, Flatø Berit, Selvaag Anne Marit, Thorsby Erik, Kvien Tore K, Førre Øystein T, Lie Benedicte A
Primary Institution: Institute of Immunology, Rikshospitalet-Radiumhospitalet Medical Center
Hypothesis
Is the CCR5Δ32 polymorphism associated with rheumatoid arthritis (RA) or juvenile idiopathic arthritis (JIA) in Norwegian cohorts?
Conclusion
The study found no association between the CCR5Δ32 allele and Norwegian RA or JIA patients.
Supporting Evidence
- The CCR5Δ32 allele frequency was 11.5% in controls vs. 10.4% in RA patients.
- No significant negative association was observed with the Δ32 allele in either RA or JIA.
- A revised meta-analysis reduced the initial risk estimate for RA from OR = 0.65 to OR = 0.83.
Takeaway
The researchers looked at a gene that might affect arthritis but found that it doesn't seem to play a big role in causing the disease.
Methodology
853 RA patients, 524 JIA patients, and 658 controls were genotyped for the CCR5Δ32 polymorphism.
Potential Biases
Potential publication bias in previous studies could affect the interpretation of results.
Limitations
The study may not have had enough power to detect a small effect, and results may vary between populations.
Participant Demographics
All participants were of Norwegian origin.
Statistical Information
P-Value
0.36 for RA, 0.20 for JIA
Confidence Interval
95% CI [0.71–1.14] for RA, 95% CI [0.63–1.07] for JIA
Statistical Significance
p = 0.36 for RA, p = 0.20 for JIA
Digital Object Identifier (DOI)
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