期刊
OXIDATIVE/NITROSATIVE STRESS AND DISEASE
卷 1203, 期 -, 页码 107-112出版社
WILEY-BLACKWELL
DOI: 10.1111/j.1749-6632.2010.05604.x
关键词
air pollution; traffic; oxidative stress; exhaled breath; airways; biomarkers
资金
- NIEHS [ES005022, ES135202]
- USEPA [R832144]
- NATIONAL INSTITUTE OF ENVIRONMENTAL HEALTH SCIENCES [K08ES013520, P30ES005022] Funding Source: NIH RePORTER
Epidemiological studies have linked exposure to traffic-related air pollutants to increased respiratory and cardiovascular morbidity and mortality. Evidence from human, animal, and in vitro studies supports an important role for oxidative stress in the pathophysiological pathways underlying the adverse health effects of air pollutants. In controlled-exposure studies of animals and humans, emissions from diesel engines, a major source of traffic-related air pollutants, cause pulmonary and systemic inflammation that is mediated by redox-sensitive signaling pathways. Assessment of human responses to traffic-related air pollution under realistic conditions is challenging due to the complex, dynamic nature of near-roadway exposure. Noninvasive measurement of biomarkers in breath and breath condensate may be particularly useful for evaluating the role of oxidative stress in acute responses to exposures that occur in vehicles or during near-roadway activities. Promising biomarkers include nitric oxide in exhaled breath, and nitrite/nitrate, malondialdehyde, and F2-isoprostanes in exhaled breath condensate.
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