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National Institute of Environmental Health Sciences

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Your Environment. Your Health.

Publication Detail

Title: Oxidative and nitrosative stress markers in bus drivers.

Authors: Rossner Jr, Pavel; Svecova, Vlasta; Milcova, Alena; Lnenickova, Zdena; Solansky, Ivo; Santella, Regina M; Sram, Radim J

Published In Mutat Res, (2007 Apr 01)

Abstract: Exposure to ambient air pollution is associated with many diseases. Oxidative and nitrosative stress are believed to be two of the major sources of particulate matter (PM)-mediated adverse health effects. PM in ambient air arises from industry, local heating, and vehicle emissions and poses a serious problem mainly in large cities. In the present study we analyzed the level of oxidative and nitrosative stress among 50 bus drivers from Prague, Czech Republic, and 50 matching controls. We assessed simultaneously the levels of 15-F(2t)-isoprostane (15-F(2t)-IsoP) and 8-oxodeoxyguanosine (8-oxodG) in urine and protein carbonyl groups and 3-nitrotyrosine (NT) in blood plasma. For the analysis of all four markers we used ELISA techniques. We observed significantly increased levels of oxidative and nitrosative stress markers in bus drivers. The median levels (min, max) of individual markers in bus drivers versus controls were as follows: 8-oxodG: 7.79 (2.64-12.34)nmol/mmol versus 6.12 (0.70-11.38)nmol/mmol creatinine (p<0.01); 15-F(2t)-IsoP: 0.81 (0.38-1.55)nmol/mmol versus 0.68 (0.39-1.79)nmol/mmol creatinine (p<0.01); carbonyl levels: 14.1 (11.8-19.0)nmol/ml versus 12.9 (9.8-16.6)nmol/ml plasma (p<0.001); NT: 694 (471-3228)nmol/l versus 537 (268-13833)nmol/l plasma (p<0.001). 15-F(2t)-IsoP levels correlated with vitamin E (R=0.23, p<0.05), vitamin C (R=-0.33, p<0.01) and cotinine (R=0.47, p<0.001) levels. Vitamin E levels also positively correlated with 8-oxodG (R=0.27, p=0.01) and protein carbonyl levels (R=0.32, p<0.001). Both oxidative and nitrosative stress markers positively correlated with PM2.5 and PM10 exposure. In conclusion, our study indicates that exposure to PM2.5 and PM10 results in increased oxidative and nitrosative stress.

PubMed ID: 17328930 Exiting the NIEHS site

MeSH Terms: Air Pollution*; Automobile Driving*; Biomarkers/metabolism*; Case-Control Studies; Czech Republic; Deoxyguanosine/analogs & derivatives*; Deoxyguanosine/urine; Enzyme-Linked Immunosorbent Assay; F2-Isoprostanes/urine*; Humans; Male; Middle Aged; Oxidation-Reduction; Oxidative Stress*; Particulate Matter; Tyrosine/analogs & derivatives*; Tyrosine/blood

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