系统性炎症,心肌损伤和风湿性关节炎冠状动脉微血管功能障碍之间的相互作用:LiiRA研究的结果
Brittany Weber1, Dana Weisenfeld2, Elena Massarotti2
1Division of Cardiovascular Medicine, Department of Medicine, Heart and Vascular Center Brigham and Women's Hospital, Harvard Medical School Boston MA.
Journal of the American Heart Association
|April 30, 2024
概括
减少类风湿性关节炎 (RA) 炎症并没有改善心肌流量储备 (MFR),这是衡量心血管风险的指标. 然而,减少的互白素-1b与较少的亚临床心肌损伤相关.
科学领域:
- 心脏病学 心脏病学
- 类风湿病学 类风湿病学
- 免疫学 免疫学 免疫学
背景情况:
- 冠状动脉微血管功能障碍 (CMD),以心肌流量储备 (MFR) 衡量,与类风湿性关节炎 (RA) 中心血管风险较高有关.
- 瘤坏死因子抑制剂用于治疗活跃的RA,但它们对心血管风险标志物的作用尚未完全理解.
研究的目的:
- 评估使用瘤亡因子抑制剂减少炎症是否能改善RA患者的MFR.
- 确定抗炎治疗与其他心血管风险指标之间的关联.
主要方法:
- 66名RA患者开始服用瘤坏死因子抑制剂,接受心脏输液正子发射断层扫描以测量基线和24周的MFR.
- 炎症标志物,包括hsCRP,IL-1b和hs-cTnT,在基线和24周被测量.
- 冠状动脉微血管功能障碍被定义为MFR<2.5没有阻塞性冠状动脉疾病.
主要成果:
- 几乎50%的RA患者在基线时有冠状动脉微血管功能障碍.
- 在24周的瘤坏死因子抑制剂治疗后,没有观察到平均MFR或hs-cTnT的显著变化.
- hsCRP和IL-1b的降低与hs-cTnT的降低相关,这表明心肌损伤的亚临床损伤减少.
结论:
- 在这种RA队列中,抗炎治疗没有改善MFR,尽管冠状动脉微血管功能障碍的患病率很高.
- 降低IL-1b水平,但不是其他炎症标志物,与下临床心肌损伤的减少有关.
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