期刊
JOURNAL OF RHEUMATOLOGY
卷 35, 期 11, 页码 2214-2219出版社
J RHEUMATOL PUBL CO
DOI: 10.3899/jrheum.080191
关键词
N-epsilon-(HEXANOYL)LYSINE; SYSTEMIC SCLEROSIS; ANTI-AGALACTOSYL IgG ANTIBODY; RHEUMATOID FACTOR
类别
Objective. To determine serum levels of N-epsilon-(hexanoyl)lysine (HEL), a new marker of oxidative stress, and its clinical association in patients with systemic sclerosis (SSc). Methods. Serum HEL levels from 26 patients with limited cutaneous SSc (ISSc), 34 with diffuse cutaneous SSc (dSSc), 20 with systemic lupus erythematosus (SLE), 20 with dermatomyositis (DM), and 40 healthy individuals were examined by enzyme linked immunosorbent assay. Results. Serum HEL levels were elevated in patients with SSc compared with healthy controls (n 40) with similar levels between patients with ISSc and dSSc (p < 0.0001). SSc patients with elevated HEL levels had increased serum levels of anti-agalactosyl IgG antibody, rheumatoid factor (RF), and IgM than those with normal HEL levels (p < 0.05). HEL levels correlated positively with anti-agalactosyl IgG antibody.(p = 0.013, r = 0.408) and RF titer (p = 0.0028, r = 0.426). Conclusion. Our results suggest that oxidative stress may play an important role in immunological abnormalities of SSc, especially in the production of autoantibodies including anti-agalactosyl IgG antibody and RE (First Release Sept 1 2008; J Rheumatol 2008;35:2214-9; doi: 10.3899/jrheum.080191)
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