大动脉狭窄患者的脂蛋白 (a) 分布:Lp (a) 降解剂是最终的解决方案吗?
Michael-Roy R Durr1, Ian G Burwash2, Lawrence Lau2
1Division of Internal Medicine, Department of Medicine, The Ottawa Hospital, Ottawa, Ontario, Canada.
只有24%的大动脉狭窄 (AS) 患者的脂蛋白 (Lp[a]) 水平升高. 这表明,新型Lp[a]降低疗法可能对大多数AS患者没有益处.
科学领域:
- 心脏病学 心脏病学
- 生物化学 生物化学
背景情况:
- 大动脉狭窄 (AS) 目前缺乏医疗疗法来阻止其进展.
- 脂蛋白 (Lp[a]) 是一种促进炎症的粒子,与AS发展有关.
- 在AS患者中Lp[a]降低药物的潜在益处是未知的.
研究的目的:
- 确定AS患者中升高Lp (a) 的患病率.
- 评估未来的Lp (a) 降低疗法在AS管理中的潜在作用.
主要方法:
- 一个未经选择的加拿大AS患者群体被评估了Lp (a) 水平.
- 根据加拿大心血管学会的指导方针,高Lp (a) 被定义为≥100nmol/L.
- 在162名患者中测量了Lp (a) 水平.
主要成果:
- 平均Lp(a) 水平为69 ± 79nmol/L,中位数为24nmol/L.
- 24%的患者 (39名162名) 呈现高Lp(a) 水平 (≥100nmol/L).
- 根据性别,年龄或AS严重程度,没有观察到Lp (a) 水平的显著差异.
结论:
- 在AS患者中,相当一部分 (24%) 患有升高的Lp.
- 新型Lp (a) 降低疗法可能对更广泛的AS群体具有有限的适用性.
- 需要进一步的研究来了解AS的病理生理学,并开发有针对性的医学疗法.
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