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早期类风湿性关节炎的前瞻性研究。I. IgA类风湿因子的预后价值。

Prospective study of early rheumatoid arthritis. I. Prognostic value of IgA rheumatoid factor.

作者信息

Teitsson I, Withrington R H, Seifert M H, Valdimarsson H

出版信息

Ann Rheum Dis. 1984 Oct;43(5):673-8. doi: 10.1136/ard.43.5.673.

Abstract

Thirty-three patients with early arthritis, 28 of whom developed classical/definite rheumatoid arthritis (RA), were followed up for two to four years. Rheumatoid factor (RF) levels of the IgM, IgA, and IgG isotypes were measured in serum and synovial fluid by an ELISA technique developed in our laboratory. All seven patients who presented with raised IgA RF developed erosions of their hands and wrists. This was significantly different from the remaining 26. By contrast none of the five patients who presented with isolated elevation of IgM RF developed erosive disease. The patients with raised IgA RF needed significantly more treatment with 'specific' drugs than the remaining 26. It is suggested that the detection of IgA RF in early RA indicates poor prognosis, justifying a more aggressive treatment at an early stage.

摘要

33例早期关节炎患者,其中28例发展为典型/确诊类风湿关节炎(RA),随访2至4年。采用我们实验室开发的ELISA技术检测血清和滑液中IgM、IgA和IgG同种型类风湿因子(RF)水平。所有7例IgA RF升高的患者均出现手部和腕部侵蚀。这与其余26例有显著差异。相比之下,5例仅IgM RF升高的患者均未发生侵蚀性疾病。IgA RF升高的患者比其余26例患者需要显著更多的“特异性”药物治疗。提示早期RA中IgA RF的检测表明预后不良,证明早期应采取更积极的治疗。

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Autoimmune hemolytic anemia with predominance of IgA autoantibody.以IgA自身抗体为主的自身免疫性溶血性贫血。
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