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Circulation:血清PCSK9浓度或可作为心血管事件的预测因素

2016-03-27 Seven L 译 MedSci原创

近期发表在Circulation的研究称,血清PCSK9浓度可作为CVD事件的预测因子,就算是校正了传统的CVD风险因素(包括LDL胆固醇),两者间的联系仍存在。瑞典卡罗林斯卡学院环境医学研究所的Karin Leander博士和同事在1997年8月-1998年12月间纳入4232名参与者(男性2039名,女性2193名)进行了一项前瞻性队列研究,探究血清PCSK9浓度和CVD发生率之间的关系。所有

近期发表在Circulation的研究称,血清PCSK9浓度可作为CVD事件的预测因子,就算是校正了传统的CVD风险因素(包括LDL胆固醇),两者间的联系仍存在。

瑞典卡罗林斯卡学院环境医学研究所的Karin Leander博士和同事在1997年8月-1998年12月间纳入4232名参与者(男性2039名,女性2193名)进行了一项前瞻性队列研究,探究血清PCSK9浓度和CVD发生率之间的关系。所有参与者在纳入研究时居住在瑞典斯德哥尔摩郡,年龄60岁,通过ELISA检测血清PCSK9浓度和其他基线资料。随访到2012年12月31日,通过国家登记库识别CVD事件。研究以CVD事件的发生率、卒中和死亡作为主要结局指标,其中CVD事件包括MI、不稳定心绞痛、突发心脏骤停和CHD。研究中校正的因素有糖尿病、BMI、运动、吸烟、高血压和高胆固醇血症。

研究数据显示,随访的490438人-年里发生了485例CVD事件(男性304名,女性181名)。总体而言的中位数血清PCSK9浓度为94.3 ng/mL,不过女性的平均值高于男性(108.9 ng/mL vs. 80.5 ng/mL)。将所有参与者按照血清PCSK9浓度由低到高分为四组,三组和四组的人群主要是女性、糖尿病或前驱糖尿病、超重、吸烟和不运动的人群。他汀类药物的使用较少,不过三组和四组的人群更可能使用他汀类药物。

血清PCSK9浓度和CVD事件之间的关联系数为0.18 (P < .0001),甘油三脂和血清PCSK9浓度的关联系数为0.12 (P < .001)。

校正CVD相关的其他危险因素(包括升高的LDL)后,Leander和同事发现血清PCSK9浓度和CVD事件显著相关(HR = 1.15; 95% CI, 1.05-1.26)。此外,随着血清PCSK9浓度由低到高,CVD风险逐渐增加,四组的人群中,CVD事件的HR=1.48 (95% CI, 1.12-1.95; P = .0063)。

研究结果表明,血清PCSK9浓度或许可以作为CVD事件的预测因素,不过未来还需要更多的研究验证该结果,如果两者间关系成立,那么个体将会受益于PCSK9抑制剂的治疗,或者PCSK9本身就可以作为治疗的靶目标。

原始出处:


Leander K, et al. Circulating PCSK9 Predicts Future Risk of Cardiovascular Events Independently of Established Risk Factors.Circulation. 2016;doi:10.1161/CIRCULATIONAHA.115.018531.

Circulating PCSK9 predicts risk for CVD events.Healio.March 27, 2016

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    2016-06-24 FukaiBao
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    2016-09-08 Tamikia
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近期 ACC大会上先后公布的多项临床试验(LAPLACE-2, DESCARTES, MENDEL-2, RUTHERFORD-2, GAUSS-2等)初步论证了PCSK9抑制剂的降胆固醇作用,结果表明此类药物降低LDL-C的幅度可髙达50%以上。这一降幅相当于大中剂量的强效他汀。 与此同时,现有研究也显示此类药物具有良好的安全性与耐受性。至此,PCSK9抑制剂已经具备了作为优秀降胆固醇药物

JCEM:何种PCSK9基因突变类型能降低LDL-C水平?

研究背景: 血浆低密度脂蛋白胆固醇(LDL-C)水平的升高是动脉粥样硬化和心血管疾病的一个重要危险因素。血清前蛋白转化酶枯草溶菌素9(PCSK9)基因的突变不仅与血浆LDL-C水平有关,还与缺血性心脏病有关。然而,对于美国印第安人种中PCSK9的遗传结构特征及其对LDL-C水平的影响还知之甚少。 研究目的: 我们旨在研究美国印第安人种包含编码PCSK9基因染色体1p32区域的遗传

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