國家衛生研究院 NHRI:Item 3990099045/2423
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    題名: Comparison of analyses of urinary 8-hydroxy-2 '-deoxyguanosine by isotope-dilution liquid chromatography with electrospray tandem mass spectrometry and by enzyme-linked immunosorbent assay
    作者: Hu, CW;Wu, MT;Chao, MR;Pan, CH;Wang, CJ;Swenberg, JA;Wu, KY
    貢獻者: Division of Environmental Health and Occupational Medicine
    摘要: A highly sensitive and selective method, using isotope-dilution liquid chromatography with tandem mass spectrometry (LC/MS/MS), for quantification of urinary 8-hydroxy-2'-deoxyguanosine (8-OHdG), an important biomarker of oxidative stress, was developed and compared with a method using an enzyme-linked immunosorbent assay (ELISA). The synthesis of N-15(5)-8-OHdG is described. In this study, 140 urine samples were collected from workers in a coke oven plant, including samples from 49 control workers and 91 workers who had been occupationally exposed to polyaromatic hydrocarbons (PAHs). The major urinary metabolite of PAHs, 1-hydroxypyrene (1-OHP), was measured for the exposed workers. Results from the present study showed a significant correlation between these two measurements for determination of 8-OHdG (p < 0.05, r(2) = 0.70). However, only the LC/MS/MS measurements of urinary levels of 8-OHdG showed a significant difference between the exposed and the control subjects (p < 0.05). The ELISA method failed to demonstrate this difference. Furthermore, only by using the LC/MS/MS method was a significant correlation observed between the urinary levels of 1-OHP and 8-OHdG. These findings suggest that a highly specific and sensitive analytical method such as isotope-dilution LC/MS/MS is extremely important and necessary for accurate measurement and a comprehensive study of oxidative stress in human subjects.
    關鍵詞: Chemistry, Analytical;Spectroscopy
    日期: 2004
    關聯: Rapid Communications in Mass Spectrometry. 2004;18(4):505-510.
    Link to: http://dx.doi.org/10.1002/rcm.1367
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=0951-4198&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000189088700019
    Cited Times(Scopus): http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=1242272025
    顯示於類別:[吳焜裕(2001-2008)] 期刊論文

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