While the artery walls of all participants increased by 14 micrometers per year, the arteries of those who were exposed to higher levels of fine particulate air pollution in their homes thickened faster than their neighbors in other parts of the city.
Interestingly, the researchers also found the reverse effect to be true: reducing fine particulate air pollution levels slowed down atherosclerosis progression. Carotid artery measurements are considered by experts to be an indicator for arterial plaque and hardening throughout the body.
根据今日发表在《公共科学图书馆•医学》杂志上的研究,呼吸含大量颗粒物的
由于颈动脉要向颈部、头部和大脑供血,颈动脉变窄或堵塞可能会引发中风。通常动脉硬化是冠心病、心脏病发作和心力衰竭的主要风险因素。
以往的研究已经表明,在受污染地区中风和心脏病发作的几率更高,但专家还未能查明空气污染是如何提高人们心脏病或中风发作的风险的。这次阿达带领的团队和华盛顿大学环境与职业健康科学和医学专业的教授乔尔•考夫曼联手合作,已经能够直接测量颈动脉厚度,并将其和空气污染数据联系起来。
乔尔•考夫曼领导的这一动脉硬化和空气污染多种族研究项目调查了居住在6个不同城市、年龄在45岁到84岁之间的5362个人。每个参与者隔三年都要做一次颈动脉超声波检查。研究人员把这些测量结果和细颗粒物空气污染的数据联系起来。
【呼吸雾霾会加快动脉硬化引发中风】相关文章:
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