JAHA:可溶性ST2是暴发性心肌炎敏感和特异的生物标志物

2022-04-07 MedSci原创 MedSci原创

sST2水平升高与机械应激或炎症反应密切相关。sST2可能作为快速诊断FM的潜在生物标志物,FM伴有强烈的机械牵张刺激和严重的炎症反应。

心肌炎是一种罕见疾病,发病率约为每10万人22例。急性心肌炎通常被认为是一种由感染、自身免疫性疾病、中毒或药物毒性作用引起的轻度自限性疾病,尽管有些病例可发展为慢性心力衰竭(HF)。虽然多种药物与心肌炎相关,但时间趋势和总死亡率尚未报道。

近日,心血管疾病领域权威杂志JAHA上发表了一篇研究文章,这项研究的目的是确定有助于暴发性心肌炎(FM)的早期诊断和治疗的生物标志物,从而降低患者死亡率。

首先,研究人员使用人类细胞因子阵列检测了4例FM患者和4例对照者的血浆样本中循环细胞因子的表达谱。结果显示,FM患者有39种细胞因子在入院时发生改变。其中有8种细胞因子在出院时恢复正常,包括可溶性ST2 (sST2),从发病到消退的动态变化最为显著。

然后,在76名FM患者、57名可归因于其他原因的急性血流动力学功能障碍患者和56名非FM患者的队列中,受试者工作特征曲线分析表明血浆sST2水平能够很好地区分FM与非FM或其他FM无关的急性心力衰竭患者。此外,研究人员对10例FM患者住院期间和16例FM患者随访期间的血浆sST2进行了纵向分析。最后,研究人员在额外的26例急性起病的血流动力学不稳定患者中验证了该指标的诊断价值。血浆sST2用于FM诊断的最佳临界值为58.39ng/mL,其灵敏度为85.7%,特异性为94.7%。

由此可见,sST2水平升高与机械应激或炎症反应密切相关。sST2可能作为快速诊断FM的潜在生物标志物,FM伴有强烈的机械牵张刺激和严重的炎症反应。

原始出处:

Jin Wang,et al.Soluble ST2 Is a Sensitive and Specific Biomarker for Fulminant Myocarditis.JAHA.2022.https://www.ahajournals.org/doi/full/10.1161/JAHA.121.024417

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    2022-04-06 zhaohui6731
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