期刊
NEUROIMMUNOMODULATION
卷 18, 期 1, 页码 45-51出版社
KARGER
DOI: 10.1159/000311519
关键词
Cytokines; Hyperthyroidism; Autoimmunity; Graves' disease
资金
- FAPESP [98/03295]
Objective: Cytokines are involved in the pathogenesis of Graves' disease (GD), but ambiguous serum cytokine results have been described. Methods: We studied the changes in serum interleukin (IL)-1 beta, soluble IL-2 receptor (sIL-2R), IL-5, IL-6 and tumor necrosis factor (TNF)-alpha concentrations in 29 untreated GD patients before and after restoration of euthyroidism with methimazole (MMI) treatment compared to 25 control subjects. Eleven out of 29 GD patients had active Graves' ophthalmopathy (GO). Results: Compared to controls, untreated GD patients had significantly higher median levels of serum IL-1 beta (18.7 vs. 34.0 pg/ml), sIL-2R (292.5 vs. 1,585.0 pg/ml), IL-5 (1.0 vs. 9.0 pg/ml), IL-6 (3.0 vs. 5.0 pg/ml) and TNF-alpha (8.1 vs. 16.0 pg/ml). In euthyroidism following MMI treatment, concentrations of IL-1 beta (25.0 pg/ml), sIL-2R (362.0 pg/ml), IL-5 (3.0 pg/ml), IL-6 (3.0 pg/ml) and TNF-alpha (5.0 pg/ml) declined significantly and were similar to controls. The greatest reductions were noted in sIL-2R (76.9%), TNF-alpha (68.8%) and IL-5 (66.6%) levels. Serum sIL-2R, IL-5 and TNF-alpha levels in active GO patients were significantly elevated, but no significant differences were observed in GD patients without GO. Using a multiple linear regression analysis, serum IL-1 beta was significantly associated with free thyroxine, sIL-2R with triiodothyronine and serum thyrotropin receptor antibody (TRAb) and TNF-alpha with TRAb. Conclusion: These results support the notion that serum cytokines could be used as a marker of GD activity, and the decrease in cytokine levels might be related to the achievement of euthyroidism and the immunomodulatory effects of MMI treatment. Copyright (C) 2010 S. Karger AG, Basel
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