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Chest:暴露于空气中的颗粒物质与特发性肺纤维化肺功能加速下降有关!

2017-08-18 xing.T MedSci原创

由此可见,环境空气污染,由平均PM10浓度来衡量,与IPF患者在肺活量的下降率增加有关,提示在疾病的进展中,空气污染是一个潜在作用机制。

特发性肺纤维化(IPF)是一种进展性疾病,其发病机制不明,部分原因可能是肺泡上皮细胞对伤害性刺激作出的异常反应。空气污染和吸入颗粒物可引起各种各样的肺部和全身炎症性疾病。近日,呼吸领域权威杂志chest上发表了一篇研究文章。研究人员推测IPF患者用力肺活量(FVC)急剧下降于大气颗粒物(PM)平均浓度增加相关。

研究人员从2007到2013年间在一所大学的转诊中心招募了一组受试者。根据地理编码的居住地址,颗粒物平均浓度低于10和2.5微克/立方米(微克/立方米,分别有PM10和PM2.5)分配给每个患者。在对基线FVC首先测量和其他变量进行控制后,研究人员采用多变量线性混合效应模型确定了FVC下降率与平均PM浓度之间的相关性。

在排除了缺失重复肺功能测量和那些颗粒物暴露数据缺失的患者后,共有135例被纳入最终分析。研究人员发现可吸入颗粒物的水平与研究期间FCV的下降率之间有明显的相关性,PM10每增加5微克/立方米相应的FCV额外降低46毫升/年(P=0.008)。

由此可见,环境空气污染,由平均PM10浓度来衡量,与IPF患者在肺活量的下降率增加有关,提示在疾病的进展中,空气污染是一个潜在作用机制。

原始出处:

Christopher J. Winterbottom,et al. Exposure to Ambient Particulate Matter is Associated with Accelerated Functional Decline in Idiopathic Pulmonary Fibrosis
.chest.2017. http://dx.doi.org/10.1016/j.chest.2017.07.034

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  2. [GetPortalCommentsPageByObjectIdResponse(id=1894623, encodeId=e56018946232c, content=<a href='/topic/show?id=e45b6e859f3' target=_blank style='color:#2F92EE;'>#特发性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=83, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=67859, encryptionId=e45b6e859f3, topicName=特发性)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=74808, createdName=xinxin088, createdTime=Wed May 16 22:28:00 CST 2018, time=2018-05-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1929402, encodeId=329d19294020f, content=<a href='/topic/show?id=9e604625ab' target=_blank style='color:#2F92EE;'>#Chest#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=139, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4625, encryptionId=9e604625ab, topicName=Chest)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c48a270, createdName=Smile2680, createdTime=Sat Dec 23 10:28:00 CST 2017, time=2017-12-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2050816, encodeId=c5b4205081660, content=<a href='/topic/show?id=95f8e042dd' target=_blank style='color:#2F92EE;'>#EST#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=7042, encryptionId=95f8e042dd, topicName=EST)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e9a6357, createdName=xiangyuzhou971, createdTime=Sat May 19 09:28:00 CST 2018, time=2018-05-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1721779, encodeId=02111e21779f6, content=<a href='/topic/show?id=a15a100e2229' target=_blank style='color:#2F92EE;'>#颗粒物#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=74, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=100722, encryptionId=a15a100e2229, topicName=颗粒物)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=106533095611, createdName=lisa449, createdTime=Sun Jan 21 10:28:00 CST 2018, time=2018-01-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=234832, encodeId=b44c234832ee, content=净化空气,保护肺功能。, beContent=null, objectType=article, channel=null, level=null, likeNumber=126, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=60791943465, createdName=1e0f8808m18(暂无匿称), createdTime=Fri Aug 18 21:31:01 CST 2017, time=2017-08-18, status=1, ipAttribution=)]
    2017-12-23 Smile2680
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    2018-01-21 lisa449
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    2017-08-18 1e0f8808m18(暂无匿称)

    净化空气,保护肺功能。

    0

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