PLOS Med:空气污染或使儿童认知功能降低

2015-03-06 伊文 生物谷

据发表在本周的PLOS Medicine杂志上的一篇文章报道称,在巴塞罗那,7-10岁在校儿童恐会因暴露在由于交通因素引起的空气高度污染中而导致认知能力降低。 研究者测量了39所学校的2715名小学生的三种认知功能(工作记忆、优秀的工作记忆和注意力),12个月内每3个月测量一次。在社会经济条件等外环境类似的情况下,将暴露到空气高污染中的小学生与暴露到空气低污染中的小学生

据发表在本周的PLOS Medicine杂志上的一篇文章报道称,在巴塞罗那,7-10岁在校儿童恐会因暴露在由于交通因素引起的空气高度污染中而导致认知能力降低。

研究者测量了39所学校的2715名小学生的三种认知功能(工作记忆、优秀的工作记忆和注意力),12个月内每3个月测量一次。在社会经济条件等外环境类似的情况下,将暴露到空气高污染中的小学生与暴露到空气低污染中的小学生的这些认知功能的发育情况进行比较,研究结果显示,即使在调整了其它影响认知功能的外在因素后,他们发现,在空气污染严重的学校上学的儿童的认知发育时间要长于污染较低的学校的儿童。例如,低污染区的11.5%小学生在12个月内可提高其认知功能,但是在高污染区域的小学生仅有7.4%在12个月内会提高其认知功能。所以直接测量学校中交通污染物的结果是可信的。

该结果也表示中学生正在发育的大脑易受交通因素引起的空气高度污染影响,这个结果已经影响到了新学校的选址以及空气污染管理办法的拟定,研究人员只控制了社会经济因素,而这个研究结果的精准度可能因混杂因素被限制,也就是说在交通污染程度高的学校的学生中,影响他们认知功能的因素可能还有其它未知的原因。

原始出处:

Sunyer J1, Esnaola M2, Alvarez-Pedrerol M2, Forns J2, Rivas I3, López-Vicente M2, Suades-González E4, Foraster M2, Garcia-Esteban R2, Basagaña X2, Viana M5, Cirach M2, Moreno T5, Alastuey A5, Sebastian-Galles N6, Nieuwenhuijsen M2, Querol X5.Association between Traffic-Related Air Pollution in Schools and Cognitive Development in Primary School Children: A Prospective Cohort Study.PLoS Med. 2015 Mar 3;12(3):e1001792. doi: 10.1371/journal.pmed.1001792. eCollection 2015.


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    2015-03-19 sunqiuqiu

    污染和认知

    0

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    2015-03-09 drhqh240

    还我蓝天

    0

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    2015-03-07 zhouanxiu

    环境保护重要啊

    0

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    2015-03-07 xiaoai5777

    雾霾挺可怕

    0

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  短期效应   长期效应   图片来自《中国医学论坛报》,感谢北京阜外医院华伟教授提供素材。

雾霾凶猛 大家请当心

绿色和平与北京大学公共卫生学院联合发布的PM2.5研究报告提醒说,雾霾问题真的挺严重。 2月4日,国际环保组织绿色和平与北京大学公共卫生学院联合发布研究报告《危险的呼吸2:大气PM2.5对中国城市公众健康的效应研究》,这份报告的结论是,2013年全国31座省会城市和直辖市因大气PM2.5污染导致的超额死亡达25.7万人,即每10万人中死亡人数高达约90人,死亡率达0.9‰

European Heart Journal:ESC提出减少污染空气暴露策略

欧洲心脏病学会(ESC)指出,在心血管疾病预防和管理中,应将空气污染视为一种重要的可调节危险因素,并应与患者就空气污染暴露展开交流。全文12月9日在线发表于《欧洲心脏杂志》(European Heart Journal)。 空气污染与心血管疾病的关联性 以爱丁堡大学Newby博士为首的专家小组探讨了环境空气污染与心血管疾病的相关性和机制,并对医生如何劝告高危患者尽可能减

ESC 权威建议:减少空气污染可降低心血管风险

近日,欧洲心脏病学会(ESC)在其官方杂志 European Heart Journal 发文表示:“空气污染应当被视为心血管疾病防治中可改变的主要危险因素之一”。英国谢菲尔德大学的 Robert Storey 指出:“空气污染暴露应该是与经常担心心血管疾病风险的患者谈话的一部分,我们希望我们的建议可以激发改善全球心血管健康的讨论”。该文主要探讨了空气污染与心血管疾病之间的机制和关系,但结尾只建议

Environ Health Perspect:空气污染可导致糖尿病发病风险

目前尚无流行病学证据和系统性评价来证明空气污染可能是是糖尿病的一个危险因素。 我们系统性回顾了空气污染与糖尿病之间有关的流行病学证据,并对2型糖尿病 (T2DM)的研究结果进行了综合性分析。 我们在电子文献数据库中搜索了与空气污染(颗粒浓度和交通污染)与糖尿病(1型,2型或者妊娠)之间有关的研究,时间截止到2014年4月29号。我们系统性评估了这些研究的偏倚带来的风险和其中潜在的混杂因

J Alzheimers Dis:PM2.5伤大脑?空气污染物增加患阿兹海默症风险

墨西哥蒙大拿大学(Universities of Montana)研究人员联合其他研究所的学者在最近一期的Journal of Alzheimer's Disease发表了一篇研究结果。他们发现携带载脂蛋白E(apolipoprotein E,APOE) ε4等位基因的儿童如果暴露在空气污染物之下(包括PM2.5),出现认知记忆方面的减退,患老年痴呆的风险会有所增加。APOEε4等位基因是最常见的