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Contribution of anti-CCP antibodies, proximal interphalangeal joint involvement, HLA-DRB1 shared epitope, and PADI4 as risk factors for the development of rheumatoid arthritis in palindromic rheumatism.


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Title: Contribution of anti-CCP antibodies, proximal interphalangeal joint involvement, HLA-DRB1 shared epitope, and PADI4 as risk factors for the development of rheumatoid arthritis in palindromic rheumatism.
Authors: Tamai, Mami / Kawakami, Atsushi / Iwamoto, Naoki / Arima, Kazuhiko / Aoyagi, Kiyoshi / Eguchi, Katsumi
Issue Date: Aug-2010
Citation: Scandinavian Journal of Rheumatology, 39(4), pp.287-291; 2010
Abstract: OBJECTIVES: To determine which variables at baseline are predictive for the development of rheumatoid arthritis (RA) from palindromic rheumatism (PR) in a Japanese population. METHODS: Anti-cyclic citrullinated peptide (anti-CCP) antibodies, joint involvement pattern, genotypes of HLA-DRB1, peptidylarginine deiminase (PADI4), and protein tyrosine phosphatase (PTPN22) were examined in 28 patients with PR at baseline, and their clinical outcome was prospectively evaluated. The same variables were also investigated in 38 healthy controls. RESULTS: Eleven out of 28 patients with PR developed RA. The prevalence of anti-CCP antibodies in the PR patients who developed RA was significantly higher compared to the patients who did not. Proximal interphalangeal (PIP) joint involvement at baseline was also predictive towards the development of RA. Compared with the controls, differences in the frequency of single-nucleotide polymorphism (SNP) on padi4_104 [T(RA susceptible)-->C(RA non-susceptible)] and the presence of an RA susceptible homozygote of the PADI4 haplotype were detected in patients with PR whereas we could not find any further difference in PR patients who developed RA compared to PR patients who do not develop RA in PADI4. None of the subjects possessed the PTPN22 SNP (1858C-->T). Cox regression analysis revealed that anti-CCP antibodies as well as PIP involvement are the most relevant variables for the development of RA from PR. None of the PR patients with either HLA-DRB1*SE alleles (or the HLA-DRB1*0405 allele) or anti-CCP antibodies developed RA. CONCLUSIONS: Anti-CCP antibodies, in relation to HLA-DRB1*SE carriership, and PIP involvement are predictive for the development of RA from PR in the Japanese population.
URI: http://hdl.handle.net/10069/25633
ISSN: 03009742
DOI: 10.3109/03009741003604534
PubMed ID: 20476860
Rights: © 2010 Taylor & Francis on license from Scandinavian Rheumatology Research Foundation. / This is an electronic version of an article published in Scandinavian journal of rheumatology, 39(4), pp.287-291; 2010. Scandinavian journal of rheumatology is available online at: http://dx.doi.org/10.3109/03009741003604534
Type: Journal Article
Text Version: author
Appears in Collections:Articles in academic journal

Citable URI : http://hdl.handle.net/10069/25633

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