累积低密度脂蛋白胆固醇暴露与血管功能的关联
Takayuki Yamaji1, Farina Mohamad Yusoff2, Shinji Kishimoto2
1Center for Radiation Disaster Medical Science, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan (Drs Yamaji and Higashi); Department of Cardiovascular Regeneration and Medicine, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan (Drs Yamaji, Yusoff, Kishimoto, Harada, Mizobuchi, Tanigawa, Maruhashi, and Higashi).
对LDL胆固醇 (LDL-C) 的累积暴露会影响血管功能. 内皮功能障碍,光滑肌肉功能障碍和动脉斑块的患病率随着较高的LDL-C水平而增加,这表明动脉样硬化的进展.
科学领域:
- 心血管科学 心血管科学
- 动脉样硬化研究 动脉样硬化研究
- 脂质代谢 脂质代谢是什么
背景情况:
- 累积低密度脂蛋白胆固醇 (LDL-C) 暴露与动脉样硬化进展之间的联系尚未完全理解.
- 评估终身LDL-C水平对血管健康的影响对于预防心血管疾病至关重要.
研究的目的:
- 研究累积的LDL-C水平与血管功能关键标志物之间的关联.
- 具体来说,要检查与流量介导血管扩张 (FMD),甘诱导血管扩张 (NID) 和常见动脉 (CCA) 斑块存在的关系.
主要方法:
- 一项横截面研究,涉及8208名参与者对口,1822名NID和591名CCA斑块.
- 参与者根据累积的LDL-C暴露 (胆固醇年得分) 被分为四组:<4000,4000-4999,5000-5999和≥6000 mg·年/dL.
- 排除标准包括目前使用降脂药物的情况.
主要成果:
- 与较高暴露组相比,较低的口病四分位数与累积的LDL-C<4000 mg·年/dL有显著的关联.
- 较低的NID四分位数在<4000 mg·年/dL组中显示出更高的几率,而不是5000-5999和≥6000 mg·年/dL组.
- 与≥6000 mg·年/dL组相比,在<4000 mg·年/dL组中,CCA斑块的患病率明显高于≥6000 mg·年/dL组.
结论:
- 内皮功能障碍与累积的LDL-C暴露有关,从4000 mg·年/dL开始.
- 血管光滑肌功能障碍与累计的LDL-C暴露率为5000mg·年/dL有关.
- 随着累积的LDL-C暴露,CCA斑块的患病率会增加,从6000mg·年/dL显而易见.
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