Anti-agalactosyl immunoglobulin G antibodies in localized scleroderma |
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Authors: | Mimra Yoshihiro Ihn Hronobu Jinnin Masatoshi Asano Yoshihide Yamane Kenichi Yazawa Norihito Tamaki Kunihiko |
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Institution: | Department of Dermatology, Faculty of Medicine, University of Tokyo, Tokyo, Japan. |
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Abstract: | BACKGROUND: Anti-agalactosyl immunoglobulin G (IgG) antibodies (anti-AG IgG) have been reported to be detected and correlated with disease activity in some collagen diseases. METHOD: Forty-seven serum samples from patients with localized scleroderma were examined using an enzyme-linked immunosorbent assay. RESULTS: Anti-AG IgG were positive in 19% of patients with localized scleroderma. The frequency of anti-AG IgG in generalized morphea was much higher than that in linear scleroderma or that in morphea. There was a significant correlation between anti-AG IgG levels and the number of the sclerotic lesions and between anti-AG IgG levels and the number of involved areas. The levels of anti-AG IgG were significantly higher in patients with antinuclear antibody, antisingle-stranded DNA antibody or rheumatoid factor than in those without. CONCLUSION: Anti-AG IgG can be an indicator of the severity of localized scleroderma. |
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