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JAHA:晚期糖基化终产物与心血管事件风险的关系

2022-07-30 MedSci原创 MedSci原创

在老年人群中α-二羰基衍生的AGEs与CVD相关,但在更健康的中年/老年人群中则无关。该研究的结果表明,AGEs仅在显著的二羰基和氧化应激条件下才可能发挥有害的心血管作用。

在伴有和不伴有糖尿病的人群中,晚期糖基化终产物(AGEs)与心血管疾病(CVD)相关。但是目前缺乏关于各种α-二羰基衍生AGEs与普通人群心血管疾病之间前瞻性关联的数据。

近日,心血管疾病领域权威杂志JAHA上发表了一篇研究文章,研究人员在2个不同年龄和合并症的人群队列中评估了血浆中主要AGE与新发CVD之间存在相关性的假设。

该研究分析纳入了来自心血管健康研究的随机亚组(n=466)和来自动脉粥样硬化多种族研究的病例组样本(n=1631)。研究人员通过液相色谱串联质谱法评估了5种AGEs和2种氧化产物,并采用Cox回归评估与CVD(心肌梗塞和卒中)之间的关联。

心血管健康研究的参与者比动脉粥样硬化多种族研究的参与者年龄更大,并且有更多的合并症,所有AGEs水平也更高。在11年的中位随访期间,动脉粥样硬化多种族研究的439名参与者和心血管健康研究的200名参与者发生了CVD。多变量调整后,在心血管健康研究中,羧甲基赖氨酸、3-脱氧葡萄糖酮氢咪唑酮和所有测量AGEs的汇总变量(主要成分1)与心血管疾病事件显著相关(HRs[95%CI]为1.20[1.01-1.42]、1.45[1.23-1.72]和1.29[1.06-1.56]),但在动脉粥样硬化多种族研究中则不然。在这两个队列中,氧化产物与CVD之间无关。

由此可见,研究人员发现在老年人群中α-二羰基衍生的AGEs与CVD相关,但在更健康的中年/老年人群中则无关。该研究的结果表明,AGEs仅在显著的二羰基和氧化应激条件下才可能发挥有害的心血管作用。对α-二羰基衍生物的进一步研究可能会为高危老年人群的CVD预防带来新的防治策略。

原始出处:

Julio A. Lamprea‐Montealegre.et al.Plasma Levels of Advanced Glycation Endproducts and Risk of Cardiovascular Events: Findings From 2 Prospective Cohorts.JAHA.2022.https://www.ahajournals.org/doi/full/10.1161/JAHA.122.025969

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    2022-08-01 zhaohui6731
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    2022-08-01 lfyang

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