Eur Heart J:高脂蛋白(a)与高死亡风险

2019-01-05 xing.T MedSci原创

由此可见,高水平的脂蛋白(a),通过相应的低LPA KIV-2重复数而不是通过高胆固醇含量,与高死亡风险相关。

正在开发的几种脂蛋白(a)降低疗法,其长期目标是降低血管疾病和死亡率;然而,脂蛋白(a)与死亡率之间的关系尚不清楚。近日,血管领域权威杂志Eur Heart J上发表了一篇研究文章,研究人员评估了脂蛋白(a)水平与死亡风险之间相关的假设。

研究人员分析了来自丹麦一般人群的两项前瞻性研究的个体,其中69764名参与者关于脂蛋白(a)浓度的信息可用,98810名参与者LPA kringle-IV 2型(KIV-2)重复数的信息可用,119094名参与者为LPA的 rs10455872 基因型。

观察性结果表明,脂蛋白(a)>93 mg/dL(199 nmol/L;第96百分位数百分位数)与<10mg/dL(18nmol/L;第1-50百分位数)相比, 心血管死亡的风险比为1.50(95置信区间为1.28-1.76),全因死亡风险比为1.20(1.10-1.30)。脂蛋白(a)>93 mg/dL(199 nmol/L;第96-100百分位数百分位数)和≤93mg/ dL(199 nmol/L;第1-95百分位数)患者的中位生存期分别为83.9和85.1岁(对数秩P=0.005)。对于心血管死亡,脂蛋白(a)水平增加50 mg/dL(105 nmol/L)与其观察性相关的风险比为1.16(1.09-1.23),与其基因性风险比基于LPA KIV2为1.23(1.08-1.41)而基于LPA rs10455872为0.98(0.88-1.09)。对于全因死亡,相应的值分别为1.05(1.01-1.09),1.10(1.04-1.18)和0.97(0.92-1.02)。最后,对于类似的胆固​​醇含量增加,与低密度脂蛋白相比,脂蛋白(a)与心血管和全因死亡率之间的相关性更密切,这意味着高脂蛋白(a)的死亡效应高于其胆固醇含量所解释的效应。

由此可见,高水平的脂蛋白(a),通过相应的低LPA KIV-2重复数而不是通过高胆固醇含量,与高死亡风险相关。

原始出处:

Anne Langsted,et al.High lipoprotein(a) and high risk of mortality.Eur Heart J. https://doi.org/10.1093/eurheartj/ehy902

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    2019-01-07 zhaojie88
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    2019-01-07 heli0118
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    2019-01-07 pcw111