中性粒细胞数量和心血管疾病
Jiao Luo1, Jesper Qvist Thomassen1, Børge G Nordestgaard2,3,4
1Department of Clinical Biochemistry, Copenhagen University Hospital-Rigshospitalet, Blegdamsvej 9, DK-2100 Copenhagen, Denmark.
高中性粒细胞计数与动脉样硬化心血管疾病的风险增加有关. 这项研究证实高中性粒细胞计数是这些疾病的因果风险因素.
科学领域:
- 心血管医学 心血管医学
- 炎症生物学 炎症生物学
- 遗传学和流行病学
背景情况:
- 中性粒细胞是关键的炎症细胞.
- 高中性粒细胞计数与动脉样硬化有关.
- 之前的抗炎试验显示了对心血管的好处.
研究的目的:
- 调查中性粒细胞计数和九个心血管终点之间的关联.
- 利用观察和遗传 (门德尔随机化) 方法.
- 确定高中性粒细胞计数是否是动脉样硬化心血管疾病的因果风险因素.
主要方法:
- 在哥本哈根一般人口研究中的观察性研究 (n=101,730).
- 在英国生物库 (n=365,913) 中的一样本孟德尔随机化 (MR).
- 采用血液细胞联盟数据的两个样本MR (n=563,085).
- 评估了九个心血管终点,包括缺血性心脏病,心肌梗塞和中风.
主要成果:
- 观察性分析显示,高中性粒细胞计数与所有研究心血管结果的风险增加有关.
- 基因预测较高的中性粒细胞计数显示出缺血性心脏病 (OR 1.15) 的风险增加,心肌梗塞 (OR 1.22) 和周围动脉疾病 (OR 1.19).
- 两个样本MR证实了对缺血性心脏病和心肌梗塞的关联,在敏感性分析中得到一致的结果.
结论:
- 观察证据和遗传证据都支持高中性粒细胞数量和动脉样硬化心血管疾病之间的因果关系.
- 高血中微粒细胞数被确定为动脉样硬化心血管疾病的因果风险因素.
- 这些发现强化了炎症在心血管病理学中的作用.
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