Carotid 动脉样硬化中的替代补充途径:低血properdin水平与长期心血管死亡率相关
Mieke C Louwe1, Chrysostomi Gialeli2, Annika E Michelsen1,3
1Research Institute of Internal Medicine, Oslo University Hospital Oslo Norway.
Journal of the American Heart Association
|January 27, 2025
概括
低血properdin水平与患有动脉动脉样硬化症的患者心血管死亡率增加有关. 相反,斑块内的高properdin表明局部补体激活和斑块脆弱性.
科学领域:
- 心血管研究研究心血管研究
- 免疫学 免疫学 免疫学
- 补充系统生物学 补充系统生物学
背景情况:
- 补充剂激活与动脉样硬化病变发生有关.
- 关于动脉样硬化中的替代补充通路激活及其预后价值的数据有限.
研究的目的:
- 在患有动脉样硬化症的患者中调查替代补充通路激活的程度.
- 确定补充因子与不良结果的关联,特别是心血管死亡率.
主要方法:
- 在两个队列中使用ELISA测量了D因子,properdin,C3bBbP和H因子的血水平 (发现和验证).
- 相关的血补充因子水平与不良结果,包括心血管死亡率,平均随访7年.
- 评估了斑块内部的properdin水平及其与斑块脆弱性标志物的相关性.
主要成果:
- 与对照组相比,患有动脉样硬化症的患者表现出血中D因子,properdin和C3bBbP水平的增加.
- 较低的血properdin水平 (<中位数) 与两个队列中心血管死亡率的增加显著相关.
- 高水平的斑块内素与斑块脆弱性和症状的标志物相关.
结论:
- 低血properdin水平是一个强大的,独立的预测者,心血管死亡率在动脉样硬化患者.
- 升高的甲状腺内素表明本地替代补充路径激活,并与甲状腺的脆弱性有关.
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