Correlation between serum uric acid, cystatin C, urinary β2-microglobulin and carotid intima-media thickness in patients with diabetic nephropathy and their predictive value in atherosclerosis
10.3760/cma.j.cn115455-20240717-00618
- VernacularTitle:糖尿病肾病患者血清尿酸、胱抑素C及尿β2-微球蛋白与颈动脉内膜中层厚度的相关性及其对动脉粥样硬化的预测价值分析
- Author:
Yang ZHANG
1
;
Xuhong CHENG
1
Author Information
1. 上海中医药大学附属第七人民医院医学检验科，上海 200137
- Publication Type:Journal Article
- Keywords:
Diabetes mellitus, type 2;
Diabetic nephropathies;
Atherosclerosis;
Uric acid;
Beta 2-microglobulin;
Cystatin C
- From:
Chinese Journal of Postgraduates of Medicine
2025;48(12):1136-1140
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To analyze the correlation between serum uric acid (UA), cystatin C (CysC), urinary β2-microglobulin (β2-MG) and carotid intima-media thickness (IMT) in patients with diabetic nephropathy (DN) and their predictive value in atherosclerosis (AS).Methods:The clinical data of 250 patients with type 2 diabetes mellitus (T2DM) diagnosed and treated in the Seventh People's Hospital Affiliated to Shanghai University of Traditional Chinese Medicine from November 2020 to November 2023 were retrospectively analyzed. They were divided into T2DM group (125 cases) and DN group (125 cases) according to whether they had concurrent DN. Another 125 healthy subjects in the same period were selected as the healthy control group. The levels of UA, CysC, urinary β2-MG and IMT were compared among the three groups. The levels of UA, CysC and urinary β2-MG in different IMT groups (IMT<1.0 mm group, IMT 1.0 - 1.5 mm group, IMT>1.5 mm group) in DN patients were compared, and the correlation between UA, CysC, urinary β2-MG and IMT was analyzed by Pearson test. Receiver operating characteristic (ROC) curve was used to analyze the predictive efficacy of UA, CysC and urinary β2-MG in patients with DN.Results:The levels of UA, CysC, urinary β2-MG and IMT in the DN group were higher than those in the T2DM group and the healthy control group : (516.55 ± 90.62) μmol/L vs.(320.16 ± 98.62), (204.82 ± 48.64) μmol/L; (2.06 ± 0.99) mg/L vs. (0.82 ± 0.24), (0.66 ± 0.10) mg/L; (2.95 ± 1.02) mg/L vs. (1.16 ± 0.33), (0.82 ± 0.16) mg/L; (0.26 ± 0.08) cm vs. (0.16 ± 0.04), (0.07 ± 0.01) cm, and the levels of UA, CysC, urinary β2-MG in the T2DM group were higher than those in the healthy control group, there were statistical differences ( P<0.05). The levels of serum UA, CysC and urinary β2-MG in the IMT<1.0 mm group were lower than those in the IMT 1.0 - 1.5 mm group and IMT>1.5 mm group: (468.37 ± 61.85) μmol/L vs. (524.16 ± 82.06), (551.92 ± 94.55) μmol/L; (1.82 ± 0.16) mg/L vs. (2.04 ± 0.33), (2.45 ± 0.62) mg/L; (2.57 ± 0.11) mg/L vs. (2.98 ± 0.18), (3.34 ± 0.26) mg/L, and serum UA, CysC and urinary β2-MG in the IMT 1.0 - 1.5 mm group were lower than those in the IMT>1.5 mm group, there were statistical differences ( P<0.05). The results of Pearson test showed that UA, CysC, urinary β2-MG were positively correlated with IMT ( r = 0.369, 0.406, 0.382, P<0.05). ROC curve analysis results showed that the combined detection of serum UA, CysC and urinary β2-MG predicted the area under the curve (AUC) of AS in DN patients was 0.904. Conclusions:The abnormal increase of serum UA, CysC and urine β 2-MG are closely related to the occurrence of AS in DN patients. Combined detection has high predictive power for AS and can serve as a potential indicator for clinical prediction of AS in DN patients.
