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Ann Rheum Dis:生物标志物检测可分辨早期RA患者风险

2014-07-30 Elizabeth(编译) 睿医资讯

新近一项研究显示,诊断时对风湿性关节炎(RA)患者进行12项生物标志物血液检测,可分辨出1年内影像学进展风险极低的患者。这一多项生物标志物疾病活动度测试(multiple-biomarker disease activity test,MBDA;加利福尼亚南旧金山 Crescendo Bioscience Inc.)已在美国上市,用于检测RA的疾病活动度。斯德哥尔摩卡罗林斯卡研究院的Dr. Kar

新近一项研究显示,诊断时对风湿性关节炎(RA)患者进行12项生物标志物血液检测,可分辨出1年内影像学进展风险极低的患者。

这一多项生物标志物疾病活动度测试(multiple-biomarker disease activity test,MBDA;加利福尼亚南旧金山 Crescendo Bioscience Inc.)已在美国上市,用于检测RA的疾病活动度。

斯德哥尔摩卡罗林斯卡研究院的Dr. Karen Hambardzumyan及其同事在《风湿病年鉴(the Annals of the Rheumatic Diseases)》中表示,在基线时分辨患者的RA进展风险有助于指导治疗。但目前已知的与影像学进展(RP)风险相关的临床因素“单独使用时预测效力有限”。因此,发现新的预测因子对于早期确定预后和优化治疗选择而言是有益的。

MBDA评分是以12项生物标志物为基础制定的:血管细胞黏附分子-1、表皮生长因子、血管内皮生长因子、干扰素-6、TNF受体I、基质金属蛋白酶-1和3、骨糖蛋白-39(YKL-40)、瘦素、抵抗素、血清淀粉样蛋白A、CRP。

目前已有一些研究正在评估MBDA评分作为RA患者预后因素的效力。为了探究该测试能否用于诊断,研究者们使用了一项在未使用过改善病情抗风湿药物的早期患者中进行的随机试验数据,对此进行了post-hoc分析。

这项分析共包含235例患者数据,结果发现5例患者MBDA评分较低,29例评分中等。评分较低的患者中无一在1年内发生RP,中等评分的患者中1年内RP的发生率仅3.4%;而在评分较高的患者中,该比例达到20.9%。MBDA评分较高者发生RP的可能性是评分较低-中等评分者的近4倍。

文章作者表示,RP高危患者可能需在早期接受更为强效的抗风湿治疗,以使风险降至最低,而本项研究中的MBDA评分即为一项独立的RP预测因素。而另一方面,MBDA评分较低者发生疾病进展的风险较小,治疗的重点应更多地放在降低疾病的临床活动度。

文章作者还表示,“风湿性关节炎是一种异质性很高的疾病,不同的患者有着不同的病理机制和不同病程。尽管MBDA评分较低与RP风险极低相关,但大部分MBDA评分较高者并未快速发生影像学进展。我们须同时使用临床预后指标和实验室检查来监测病程。”

原始出处:


Hambardzumyan K1, Bolce R2, Saevarsdottir S3, Cruickshank SE4, Sasso EH2, Chernoff D2, Forslind K5, Petersson IF6, Geborek P7, van Vollenhoven RF1.Pretreatment multi-biomarker disease activity score and radiographic progression in early RA: results from the SWEFOT trial.Ann Rheum Dis. 2014 May 8. pii: annrheumdis-2013-204986. doi: 10.1136/annrheumdis-2013-204986. [Epub ahead of print]

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