Riassunto

Objective To compare short-term effects of fine particles (PM2.5; aerodynamic diameter <2.5 µm) from different sources on the blood levels of markers of systemic inflammation.

Methods We followed a panel of 52 ischaemic heart disease patients from 15 November 2005 to 21 April 2006 with clinic visits in every second week in the city of Kotka, Finland, and determined nine inflammatory markers from blood samples. In addition, we monitored outdoor air pollution at a fixed site during the study period and conducted a source apportionment of PM2.5 using the Environmental Protection Agency's model EPA PMF 3.0. We then analysed associations between levels of source-specific PM2.5 and markers of systemic inflammation using linear mixed models.

Results We identified five source categories: regional and long-range transport (LRT), traffic, biomass combustion, sea salt, and pulp industry. We found most evidence for the relation of air pollution and inflammation in LRT, traffic and biomass combustion; the most relevant inflammation markers were C-reactive protein, interleukin-12 and myeloperoxidase. Sea salt was not positively associated with any of the inflammatory markers.

Conclusions Results suggest that PM2.5 from several sources, such as biomass combustion and traffic, are promoters of systemic inflammation, a risk factor for cardiovascular diseases.

 

Keywords

Air pollution, fine particulate, Ischaemic heart disease

Articoli correlati che potrebbero interessarti

Caroline M. Tabor, Catherine A. Shaw, Sarah Robertson, Mark R. Miller, Rodger Duffin, Ken Donaldson, David E. Newby, Patrick W. F. Hadoke

Platelet activation independent of pulmonary inflammation contributes to diesel exhaust particulate-induced promotion of arterial thrombosis

Particle and Fibre Toxicology. Vol. 13, Iss. 6 January 2016

Ala Muala, Gregory Rankin, Maria Sehlstedt, Jon Unosson, Jenny A. Bosson, Annelie Behndig, Jamshid Pourazar, Robin Nyström, Esbjörn Pettersson, Christoffer Bergvall, Roger Westerholm, Pasi I. Jalava, Mikko S. Happo, Oskari Uski, Maija-Riitta Hirvonen, Frank J. Kelly, Ian S. Mudway, Anders Blomberg, Christoffer Boman, Thomas Sandström

Acute exposure to wood smoke from incomplete combustion - indications of cytotoxicity

Particle and Fibre Toxicology. Vol. 12, Iss. 33,34 October 2015

Capobussi Matteo, Tettamanti Roberto, Marcolin Luca, Piovesan Luca, Bronzin Silvia, Gattoni Maria Elena, Polloni Ilaria, Sabatino Giuliana, Tersalvi Carlo A., Auxilia Francesco, Castaldi Silvana

Air Pollution Impact on Pregnancy Outcomes in Como, Italy

Journal of Occupational and Environmetal Medicine. Vol. 58, Iss. 1, January 2016