Journal of Capital Medical University ›› 2013, Vol. 34 ›› Issue (6): 856-859.doi: 10.3969/j.issn.1006-7795.2013.06.015

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Effect of cigarette smoking on plasma uric acid concentrations

WANG Yulan1, LIU Bin2, Ma Lina1, WANG Rong1   

  1. 1. Department of Central Laboratory, Xuanwu Hospital, Capital Medical University, Bejing Geriatric Medical Research Center, Bejing 100053, China;
    2. Department of Clinical Laboratory, Beijing Friendship Hospital, Capital Medical University, Bejing 100050, China
  • Received:2013-10-16 Online:2013-12-21 Published:2013-12-13
  • Supported by:

    This study was supported by Natural Science Foundation of Beijing(7132044);Capital Health Development Research(2011-2001-02).

Abstract:

Objective The purpose of this study was to examine the effect of cigarette smoking on plasma uric acid concentration and to determine the correlation between this parameter and the biological tobacco markers, urinary cotinine. Methods The study was conducted on 300 subjects. One hundred and thirty-eight of them were nonsmokers(62 men and 76 women) and 162 were current smokers(145 men and 17 women). Uric acid, creatinine, and urinary cotinine were determined by the enzymatic colorimetric method. Results Plasma uric acid concentration was significantly lower in smokers than in nonsmokers. A statistically significant negative correlation was noted between the smoking status parameters, including both the number of cigarettes smoked/day and the duration of smoking, and the plasma uric acid. Among smokers, we noted a negative correlation between uric acid, and urinary cotinine. Conclusion After excluding the other factors affecting the uric acid levels, the significant low plasma uric acid in smokers was attributed to a reduction of the endogenous production as a result of the chronic exposure to cigarette smoke that is a significant source of oxidative stress. Therefore, it is recommended to stop or reduce smoking and to introduce plasma uric acid estimation as a routine test, since it is cheap and simple to reflect the antioxidant level.

Key words: cigarette smoking, cotinine, uric acid, oxidative stress

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