期刊
ARTHRITIS AND RHEUMATISM
卷 60, 期 3, 页码 653-660出版社
WILEY
DOI: 10.1002/art.24362
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资金
- Swedish Medical Research Council
- Swedish Council for Working Life and Social Research
- King Gustaf V's 80-year Fund
- Swedish Rheumatism Foundation
- Stockholm County Council, AFA
- European Union
- NIH [T32-AR-055885, K09-A1-55314, P60-AR-47782, R01-AR-49880, K24-AR-052401]
- Randolph Hearst fund of Harvard University
- Burroughs Wellcome Fund
Objective. The co-occurrence of autoimmune diseases such as rheumatoid arthritis (RA) and type I diabetes mellitus (DM) has been reported in individuals and families. In this study, the strength and nature of this association were investigated at the population level in a Swedish case-control cohort. Methods. For this case-control study, 1,419 patients with incident RA diagnosed between 1996 and 2003 were recruited from university, public, and private rheumatology units throughout Sweden; 1,674 matched control subjects were recruited from the Swedish national population registry. Sera from the subjects were tested for the presence of antibodies to cyclic citrullinated peptide (anti-CCP), rheumatoid factor (RF), and the 620W PTPN22 allele. Information on a history of diabetes was obtained by questionnaire, telephone interview, and/or medical record review. The prevalence of type 1 DM and type 2 DM was compared between patients with incident RA and control subjects and further stratified for the presence of anti-CCP, RF, and the PTPN22 risk allele. Results. Type I DM was associated with an increased risk of RA (odds ratio [OR] 4.9, 95% confidence interval [95% CI] 1.8-13.1), and this association was specific for anti-CCP-positive RA (OR 7.3, 95% CI 2.7-20.0), but not anti-CCP-negative RA. Further adjustment for the presence of PTPN22 attenuated the risk of anti-CCP-positive RA in patients with type I DM to an OR of 5.3 (95% CI 1.5-18.7). No association between RA and type 2 DM was observed. Conclusion. The association between type I DM and RA is specific for a particular RA subset, anti-CCP-positive RA. The risk of developing RA later in life in patients with type I DM may be attributed, in part, to the presence of the 620W PTPN22 allele, suggesting that this risk factor may represent a common pathway for the pathogenesis of these 2 diseases.
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