Mapping Genes for Rheumatoid Arthritis on Chromosome 6
Author Information
Author(s): D.J. Schaid, W.-Y. Lin
Primary Institution: Mayo Clinic
Hypothesis
Is there evidence for two rheumatoid arthritis susceptibility genes on chromosome 6?
Conclusion
The study provides evidence for a second rheumatoid arthritis susceptibility locus on chromosome 6.
Supporting Evidence
- The study applied new robust methods for two-locus multipoint identical-by-descent mapping.
- Evidence for a second susceptibility locus was found at 54.7–69.6 cM on chromosome 6.
- The constrained model provided shorter confidence intervals, suggesting more precise estimates.
Takeaway
Researchers looked for genes that might cause rheumatoid arthritis on chromosome 6 and found evidence for two of them.
Methodology
The study used generalized estimating equations to analyze genetic data from affected relative pairs.
Potential Biases
There may be hidden biases influencing IBD estimation, such as misspecified allele frequencies.
Limitations
The estimates varied greatly across different data sets, which could be due to small sample sizes and hidden biases.
Participant Demographics
The study involved 757 families from the North American Rheumatoid Arthritis Consortium, including various types of affected relative pairs.
Statistical Information
P-Value
0.65
Confidence Interval
95% CI of 45.6–52.7 and 54.7–69.6
Statistical Significance
p = 0.65
Want to read the original?
Access the complete publication on the publisher's website