國家衛生研究院 NHRI:Item 3990099045/9952
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    题名: Concurrent quantification of multiple biomarkers indicative of oxidative stress status using liquid chromatography-tandem mass spectrometry
    作者: Wu, C;Chen, ST;Peng, KH;Cheng, TJ;Wu, KY
    贡献者: National Institute of Environmental Health Sciences
    摘要: 8-Hydroxy-2-deoxyguanosine (8-OHdG), 8-nitroguanine (8-NO2Gua), 8-iso-prostaglandin F2alpha (8-IsoPGF2alpha), and N-acetyl-S-(tetrahydro-5-hydroxy-2-pentyl-3-furanyl)-L-cysteine (HNE-MA) are well-studied and representative biomarkers for oxidative DNA damage, inflammation, and lipid peroxidation; all of which have been associated with increases in risks of various diseases and cancers. A rapid and highly sensitive isotope-dilution liquid-chromatography tandem mass spectrometry (LC-MS/MS) method was developed to simultaneously quantify the aforementioned biomarkers in urine. Upon validation, this method shows excellent feasibility, sensitivity (0.008-0.03 ng/mL) and satisfactory recoveries (88.7-95.4%); the calibration curves displayed excellent linearity with coefficients of determination (R2) greater than 0.998. Additionally, low variations were observed in the relative standard deviation for intra- and inter-day measurements for the four analytes. The relative matrix effects for all four analytes ranged from 2.04 to 3.27%, which signaled that interferences from endogenous levels of the analytes were deemed statistically insignificant. This study successfully developed an analytical method capable to simultaneously quantify urinary 8-OHdG, 8-NO2Gua, 8-IsoPGF2alpha, and HNE-MA. This analytical protocol can be applied towards conducting epidemiological studies to reveal the mechanisms related to disease development, and thus evaluate the associated risks of diseases.
    日期: 2016-08-01
    關聯: Analytical Biochemistry. 2016 Aug 1;512:26-35.
    Link to: http://dx.doi.org/10.1016/j.ab.2016.07.030
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=0003-2697&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000383413300004
    Cited Times(Scopus): http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84982225585
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