title: Rapid and easy method for monitoring oxidative stress markers in body fluids of patients with asbestos or silica-induced lung diseases.
abstract: Sensitive assay method was developed for a parallel, rapid and precise determination of the most prominent oxidative stress biomarkers: 8-iso-prostaglandin F(2alpha), malondialdehyde and 4-hydroxynonenal. The method consisted of a pre-treatment part a solid-phase extraction, for rapid and effective isolation of biomarkers from body fluids (exhaled breath condensate, plasma and urine) and the detection method LC-ESI-MS/MS, where the selected reaction monitoring mode was used for its extremely high degree of selectivity and the stable-isotope-dilution assay for its high precision of quantification. The developed method was characterized by the following parameters: the imprecision was below 14.3%, the mean inaccuracy was determined to be lower than 13.1%. The method was tested on samples obtained from patients diagnosed with asbestosis, pleural hyalinosis or silicosis, i.e. occupational lung diseases caused by fibrogenic dusts, inducing oxidative stress in the respiratory system, and then compared to samples from healthy subjects. The difference in concentration levels of biomarkers between the two groups was perceptible in all the body fluids (the difference observed in an exhaled breath condensate was statistically most significant).
authors: Institute of Chemical Technology, Technická 5, 166 28 Prague 6, Czech Republic.
authors: Kamila
authors: K
authors: Syslová
authors: Petr
authors: P
authors: Kacer
authors: Marek
authors: M
authors: Kuzma
authors: Vera
authors: V
authors: Najmanová
authors: Zdenka
authors: Z
authors: Fenclová
authors: Stepánka
authors: S
authors: Vlcková
authors: Jindriska
authors: J
authors: Lebedová
authors: Daniela
authors: D
authors: Pelclová
mesh_terms: D000368:Aged; D000447:Aldehydes / Q000032:analysis / Q000097:blood / Q000652:urine; D001194:Asbestos / Q000633:toxicity; D015415:Biomarkers / Q000032:analysis* / Q000097:blood / Q000652:urine; D001826:Body Fluids / Q000737:chemistry* / Q000378:metabolism; D016022:Case-Control Studies; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D015237:Dinoprost / Q000031:analogs & derivatives / Q000032:analysis / Q000097:blood / Q000652:urine; D006801:Humans; D008171:Lung Diseases / Q000097:blood / Q000209:etiology* / Q000378:metabolism* / Q000652:urine; D008315:Malondialdehyde / Q000032:analysis / Q000097:blood / Q000652:urine; D008875:Middle Aged; D018384:Oxidative Stress; D012822:Silicon Dioxide / Q000633:toxicity; D052616:Solid Phase Extraction / Q000379:methods*; D053719:Tandem Mass Spectrometry / Q000379:methods*
chemical_list: D000447:Aldehydes; D015415:Biomarkers; D001194:Asbestos; C075750:8-epi-prostaglandin F2alpha; D008315:Malondialdehyde; D012822:Silicon Dioxide; D015237:Dinoprost; C027576:4-hydroxy-2-nonenal