Study of PTPN22 and tp53 Genes in Psoriatic Arthritis
Author Information
Author(s): Christopher Butt, Lynette Peddle, Celia Greenwood, Sean Hamilton, Dafna Gladman, Proton Rahman
Primary Institution: Memorial University of Newfoundland, University of Toronto
Hypothesis
Are the functional variants of PTPN22 and tp53 associated with psoriatic arthritis?
Conclusion
The study found a moderate association of the R620W variant of PTPN22 with psoriatic arthritis in the Toronto population, but not in the Newfoundland cohort.
Supporting Evidence
- The study included 238 PsA patients and 149 controls from Newfoundland.
- Results showed a significant association of the R620W variant in the Toronto cohort.
- No association was found with the tp53 variant in either population.
Takeaway
The researchers looked at two genes to see if they are linked to psoriatic arthritis, and found some evidence for one gene in a specific group of patients.
Methodology
The study involved genotyping PsA patients and controls for specific gene variants and analyzing allele frequencies.
Potential Biases
Potential population stratification may have influenced the results.
Limitations
The findings in the Toronto cohort need further validation in other populations.
Participant Demographics
Caucasian PsA patients from Newfoundland and Toronto, with varying ages and disease patterns.
Statistical Information
P-Value
0.018
Statistical Significance
p=0.018
Digital Object Identifier (DOI)
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