Tianjin Medical Journal ›› 2023, Vol. 51 ›› Issue (1): 62-68.doi: 10.11958/20220663

• Clinical Research • Previous Articles     Next Articles

Relationship between serum uric acid level and abnormal renal function in adults

WANG Jianxiong1(), LI Chunjun2, ZHANG Li3, HE Jiangshan4, GUO Pei4, ZHANG Minying4, ZHANG Mianzhi5,6,()   

  1. 1 Graduate School of Tianjin Medical University, Tianjin 300070, China
    2 Health Management Center, Tianjin Union Medical Center
    3 Health Management Center, Tianjin First Central Hospital
    4 School of Medicine, Nankai University
    5 Department of Nephrology, Tianjin Academy of Traditional Chinese Medicine Affiliated Hospital
    6 Department of Nephrology, Dongfang Hospital, Beijing University of Chinese Medicine
  • Received:2022-05-05 Revised:2022-07-08 Published:2023-01-15 Online:2023-01-17
  • Contact: ZHANG Mianzhi E-mail:wangjianxiong626@tmu.edu.cn;zhangmianzhi@vip.sina.com

Abstract:

Objective To explore the relationship between serum uric acid (SUA) levels and renal function decline in adults. Methods A total of 12 138 normal physical examination subjects were selected as research subjects. General data of subjects were collected by questionnaire, and serum creatinine (Scr), SUA and fasting blood glucose were measured. Subjects were divided into two groups based on estimated glomerular filtration rate (eGFR): the abnormal renal function group (1 607 cases) and the normal renal function group (10 531 cases). Men and women of subjects were divided into the hyperuricemia group and the normal uric acid group according to 420 μmol/L and 360 μmol/L uric acid levels, respectively. The normal uric acid group was then divided into four sub-groups according to SUA quartile. Trends in the proportion of patients with abnormal renal dysfunction with SUA levels were analyzed in different genders. Logistic regression was used to analyze the influence of SUA level and renal function in subgroups with different gender, age, education level, exercise, hypertension and diabetes. Results In men and women, with the increase of SUA level, the proportion of SUA quartile groups and hyperuricemia patients in the renal dysfunction group showed an increasing trend (Z male =6.411; Z female =23.800, P<0.01). Logistic regression results showed that compared with the first quartile group, the second, third, and fourth quartile groups and hyperuricemia group were all risk factors of renal dysfunction (P<0.05). There was a significant dose-response relationship between SUA and renal dysfunction in both men and women (P for trend<0.01). The relationship was statistically significant across subgroups of age, education, physical activity, hypertension and diabetes. Conclusion Elevated SUA are related with an increased risk of renal dysfunction in a dose-response relationship.

Key words: uric acid, hyperuricemia, glomerular filtration rate, renal insufficiency, sex factors

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