Traffic-related air pollution and DNA damage: a longitudinal study in Taiwanese traffic conductors.

<h4>Background</h4>There is accumulating epidemiologic evidence that exposure to traffic-related air pollutants, including particulate matter (PM) and polyaromatic hydro carbons (PAHs), plays a role in etiology and prognosis of a large scale of illnesses, although the role of specific ca...

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Autores principales:	Han-Bin Huang, Ching-Huang Lai, Guan-Wen Chen, Yong-Yang Lin, Jouni J K Jaakkola, Saou-Hsing Liou, Shu-Li Wang
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2012
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b2315a07cd6449b992ab3f4834f8c2fd
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spelling	oai:doaj.org-article:b2315a07cd6449b992ab3f4834f8c2fd2021-11-18T07:17:56ZTraffic-related air pollution and DNA damage: a longitudinal study in Taiwanese traffic conductors.1932-620310.1371/journal.pone.0037412https://doaj.org/article/b2315a07cd6449b992ab3f4834f8c2fd2012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22629390/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203<h4>Background</h4>There is accumulating epidemiologic evidence that exposure to traffic-related air pollutants, including particulate matter (PM) and polyaromatic hydro carbons (PAHs), plays a role in etiology and prognosis of a large scale of illnesses, although the role of specific causal agents and underlying mechanisms for different health outcomes remains unknown.<h4>Objective</h4>Our general objective was to assess the relations between personal exposure to traffic exhausts, in particular ambient PM(2.5) and PAHs, and the occurrence of DNA strand breaks by applying personal monitoring of PM and biomarkers of exposure (urinary 1-hydroxypyrene-glucuronide, 1-OHPG) and effect (urinary 8-hydroxydeoxyguanosine, 8-OHdG and DNA strand breaks).<h4>Methods</h4>We recruited 91 traffic conductors and 53 indoor office workers between May 2009 and June 2011 in Taipei City, Taiwan. We used PM(2.5) personal samplers to collect breathing-zone particulate PAHs samples. Spot urine and blood samples after work shift of 2 consecutive days were analyzed for 1-OHPG, 8-OHdG and DNA strand breaks, respectively. Statistical methods included linear regression and mixed models.<h4>Results</h4>Urinary 8-OHdG levels and the occurrence of DNA strand breaks in traffic conductors significantly exceeded those in indoor office workers in mixed models. Particulate PAHs levels showed a positive association with urinary 1-OHPG in the regression model (β = 0.056, p = 0.01). Urinary 1-OHPG levels were significantly associated with urinary 8-OHdG levels in the mixed model (β = 0.101, p = 0.023). Our results provide evidence that exposure to fine particulates causes DNA damage. Further, particulate PAHs could be biologically active constituents of PM(2.5) with reference to the induction of oxidative DNA damages.Han-Bin HuangChing-Huang LaiGuan-Wen ChenYong-Yang LinJouni J K JaakkolaSaou-Hsing LiouShu-Li WangPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 5, p e37412 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Han-Bin Huang Ching-Huang Lai Guan-Wen Chen Yong-Yang Lin Jouni J K Jaakkola Saou-Hsing Liou Shu-Li Wang Traffic-related air pollution and DNA damage: a longitudinal study in Taiwanese traffic conductors.
description	<h4>Background</h4>There is accumulating epidemiologic evidence that exposure to traffic-related air pollutants, including particulate matter (PM) and polyaromatic hydro carbons (PAHs), plays a role in etiology and prognosis of a large scale of illnesses, although the role of specific causal agents and underlying mechanisms for different health outcomes remains unknown.<h4>Objective</h4>Our general objective was to assess the relations between personal exposure to traffic exhausts, in particular ambient PM(2.5) and PAHs, and the occurrence of DNA strand breaks by applying personal monitoring of PM and biomarkers of exposure (urinary 1-hydroxypyrene-glucuronide, 1-OHPG) and effect (urinary 8-hydroxydeoxyguanosine, 8-OHdG and DNA strand breaks).<h4>Methods</h4>We recruited 91 traffic conductors and 53 indoor office workers between May 2009 and June 2011 in Taipei City, Taiwan. We used PM(2.5) personal samplers to collect breathing-zone particulate PAHs samples. Spot urine and blood samples after work shift of 2 consecutive days were analyzed for 1-OHPG, 8-OHdG and DNA strand breaks, respectively. Statistical methods included linear regression and mixed models.<h4>Results</h4>Urinary 8-OHdG levels and the occurrence of DNA strand breaks in traffic conductors significantly exceeded those in indoor office workers in mixed models. Particulate PAHs levels showed a positive association with urinary 1-OHPG in the regression model (β = 0.056, p = 0.01). Urinary 1-OHPG levels were significantly associated with urinary 8-OHdG levels in the mixed model (β = 0.101, p = 0.023). Our results provide evidence that exposure to fine particulates causes DNA damage. Further, particulate PAHs could be biologically active constituents of PM(2.5) with reference to the induction of oxidative DNA damages.
format	article
author	Han-Bin Huang Ching-Huang Lai Guan-Wen Chen Yong-Yang Lin Jouni J K Jaakkola Saou-Hsing Liou Shu-Li Wang
author_facet	Han-Bin Huang Ching-Huang Lai Guan-Wen Chen Yong-Yang Lin Jouni J K Jaakkola Saou-Hsing Liou Shu-Li Wang
author_sort	Han-Bin Huang
title	Traffic-related air pollution and DNA damage: a longitudinal study in Taiwanese traffic conductors.
title_short	Traffic-related air pollution and DNA damage: a longitudinal study in Taiwanese traffic conductors.
title_full	Traffic-related air pollution and DNA damage: a longitudinal study in Taiwanese traffic conductors.
title_fullStr	Traffic-related air pollution and DNA damage: a longitudinal study in Taiwanese traffic conductors.
title_full_unstemmed	Traffic-related air pollution and DNA damage: a longitudinal study in Taiwanese traffic conductors.
title_sort	traffic-related air pollution and dna damage: a longitudinal study in taiwanese traffic conductors.
publisher	Public Library of Science (PLoS)
publishDate	2012
url	https://doaj.org/article/b2315a07cd6449b992ab3f4834f8c2fd
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Traffic-related air pollution and DNA damage: a longitudinal study in Taiwanese traffic conductors.

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