J Rheumatol:糜烂性手部骨关节炎中存在自身抗体与临床表现的关联

2018-09-20 xiangting MedSci原创

HOA患者和HC中自身抗体的患病率相似,并且这些自身抗体与HOA患者的糜烂性疾病、结构损伤或炎症无关,这表明另一种机制导致了糜烂性疾病。

这项研究旨在探讨3种类风湿性关节炎相关抗体[类风湿因子(RF)和抗瓜氨酸蛋白抗体(ACPA)或抗氨基甲酰化蛋白(抗CarP)抗体]是否存在于手部骨关节炎(HOA),并是否与糜烂性OA(EOA)相关。

采用酶联免疫吸附试验(ELISA)检测3个队列中HOA患者:HOSTAS(n=510,27.2%EOA)、ECHO(n=47)和EHOA(n=23),以及健康对照(HC;n=196,平均年龄44.1岁,女性51.0%)基线血清中的抗CarP IgG。此外,在HOSTAS和HC中额外测定ACPA-IgG和RF-IgM。比较HOA和HC之间、糜烂性和非糜烂性HOA之间自身抗体的患病率。在HOSTAS中,对手部X光片进行评分(Kellgren-Lawrence、国际骨关节炎研究学会骨赘和关节间隙狭窄),对代表炎症的C-反应蛋白(CRP)水平进行评估。使用非参数检验进行组间比较。

抗CarP的患病率较低,总HOA组与HC之间无显著差异(6.6%vs 3.6%,p=0.12)。在HOSTAS中,所有检测自身抗体的患病率都低(抗CarP 7.1%、ACPA 0.8%、RF 6.1%)。在HOA患者和HC之间、或糜烂性和非糜烂性HOA之间没有观察到显著差异。此外,抗CarP+和抗CarP-、RF+和RF-的HOSTAS患者的影像学损伤和CRP水平相似。

HOA患者和HC中自身抗体的患病率相似,并且这些自身抗体与HOA患者的糜烂性疾病、结构损伤或炎症无关,这表明另一种机制导致了糜烂性疾病。

原始出处:
Myrthe Alexandra Maria van Delft,et al. Presence of Autoantibodies in Erosive Hand Osteoarthritis and Association with Clinical Presentation. J Rheumatol. 15 September 2018.

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    2019-03-31 lisa438
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    2018-09-22 lmm397
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    2018-09-22 许安