I型原降解作为ST升高心肌梗塞死亡率的预测生物标志物
Emily M Martin1,2, Elisavet Angeli3,4, Federica Genovese3
1Nordic Bioscience A/S, Herlev Hovedgade 205, 2730, Herlev, Denmark. emma@nordicbio.com.
概括
原体I型降解生物标志物C1M和C1SIG在ST升高心肌梗塞 (STEMI) 后增加. 高C1M水平独立预测STEMI患者的1年死亡率,提供超出现有风险评分的预后价值.
科学领域:
- 心血管医学 心血管医学
- 生物标志物发现发现
- 细胞外矩阵研究 细胞外矩阵研究
背景情况:
- ST-升高的心肌梗塞 (STEMI) 导致显著的组织重塑和细胞外基质 (ECM) 变化,增加心力衰竭和死亡风险.
- I型原蛋白是一种主要的心脏ECM成分,在STEMI损伤部位迅速降解.
- 之前的研究表明,一种来自于I型原蛋白的信号 (C1SIG) 参与了心肌梗塞 (MI) 后的左心室重塑.
研究的目的:
- 在一个大型STEMI队列中评估一种新型原I型衍生信号 (C1SIG) 生物标志物的预后潜力.
- 为了比较C1SIG的预后能力与已确定的I型原体片段生物标志物C1M.
- 评估这些生物标志物在STEMI后一年内对所有原因死亡的预测价值.
主要方法:
- 血C1SIG和C1M水平是通过1616名STEMI患者在入院后使用酶相关的免疫吸收试验来测量的.
- 患者被跟踪了一年,以记录所有原因的死亡率.
- 为了评估预后意义,进行了生存分析,包括单变量和多变量Cox比例危险回归,以评估预后意义.
主要成果:
- 从入院到STEMI后12小时,C1M和C1SIG水平都显著增加.
- C1M (最高四分位数) 和C1SIG (中位数) 的水平升高与一年生存概率降低有关.
- 在多变量分析中,C1M成为一年死亡率的独立预测因素 (HR [95% CI] 1.46 [1.15-1.85]),并为GRACE风险评分提供了附加值.
结论:
- C1M和C1SIG是动态生物标志物,反映了STEMI后的I型原体降解.
- C1SIG也被认为是一种潜在的原信号分子.
- C1M是心肌梗塞后一年内所有原因死亡率的重要独立预测因子.
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