EULAR 2014:骨关节炎严重程度的生物标志物

2014-06-18 佚名 睿医资讯

目前,miRNA成为了多个领域的生物标志物,包括癌症、糖尿病和心血管疾病,这类标志物能在不同温度和环境下持续保持稳定,而且人们可在血中检测到该物质。新近一项研究显示,血中出现3种特殊的微小RNA(miRNA)似乎预示着患者最终将进展为重症骨关节炎。这项研究的参与者、来自德国埃朗根-纽伦堡大学的Christian Beyer, MD声称“这是第一项在大规模人群样本中确定此类生物标志物的队列研究。”研

目前,miRNA成为了多个领域的生物标志物,包括癌症、糖尿病和心血管疾病,这类标志物能在不同温度和环境下持续保持稳定,而且人们可在血中检测到该物质。新近一项研究显示,血中出现3种特殊的微小RNA(miRNA)似乎预示着患者最终将进展为重症骨关节炎。

这项研究的参与者、来自德国埃朗根-纽伦堡大学的Christian Beyer, MD声称“这是第一项在大规模人群样本中确定此类生物标志物的队列研究。”研究结果首次提示,我们可以在疾病对患者生活造成严重困扰前预测重症骨关节炎的发生风险。这可使得我们在疾病早期即采取预防性措施,以减轻其对患者生活及社会经济负担的影响。Christian Beyer在2014年欧洲抗风湿病联盟(EULAR)大会上汇报了相关研究结果。

研究者们评估了Bruneck队列研究中部分骨关节炎患者的现有血清样本,主要预后指标为是否需进行髋关节或膝关节置换术。在随访期间,67例患者(受试者总数为816)因重症骨关节炎至少接受了1次关节置换术。这些患者与未接受手术的患者相比,年龄显著更大(P = .053),体重指数也显著更高(P = .002)。

基线时,研究者们测定了血样中的miRNA表达。研究者们从374个miRNA中挑选出12个作为宇轩的生物标志物。Cox回归分析发现,其中3个miRNA与需进行髋关节或膝关节置换有关,这3个miRNA为miR-454、miR-885-5p和let-7e。

Dr. Beyer在报告中表示,最有可能单独应用的miRNA为let-7e,let-7e水平越低,需进行膝关节或髋关节置换的可能性越高。

这一研究也带来了很多新的问题:这些miRNA来自何处?是否来自于患病关节?其对疾病活动度有无影响?我们能否在其他人群中证实这一结果?

Dr. Beyer指出,该研究的受试人群由一家小医院的不同组患者构成,并指出这一发现需在更大规模的研究中获得确证。

目前,为确定这些生物标志物能否应用于临床,一些研究正在进行中。

临床实践应用

EULAR科学项目主席、德国吉森大学风湿病学教授Ulf Müller-Ladner认为,这类生物标志物的临床应用宜早不宜迟。他表示,“微小的miRNA便于检测,如果我们找到了合适的miRNA,那么我们就能对疾病进行预测或诊断。目前,miRNA正应用于其他疾病。它们检测方便且不受温度影响。”一旦这项研究的发现在更大规模的研究中获得确证,这些标志物就可应用于临床。

原始出处:


European League Against Rheumatism (EULAR) Congress 2014: Abstract OP0003. Presented June 11, 2014.

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    2015-04-07 lisa438
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    2014-06-20 lmm397
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    2014-06-20 muzishouyi
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