检验医学 ›› 2020, Vol. 35 ›› Issue (10): 1032-1035.DOI: 10.3969/j.issn.1673-8640.2020.10.015

• 临床应用研究·论著 • 上一篇    下一篇

Cys C、α-klotho蛋白、sICAM-1与糖尿病肾病的相关性

陈俊   

  1. 攀枝花市中心医院检验科,四川 攀枝花 617000
  • 收稿日期:2019-10-25 出版日期:2020-10-30 发布日期:2020-11-12
  • 作者简介:null

    作者简介:陈 俊,男,1982年生,学士,主管技师,主要从事临床检验工作。

Correlation between cystatin C,α-klotho protein,sICAM-1 and diabetic nephropathy

CHEN Jun   

  1. Department of Clinical Laboratory,Panzhihua Central Hospital,Panzhihua 617000,Sichuan,China
  • Received:2019-10-25 Online:2020-10-30 Published:2020-11-12

摘要:

目的 探讨胱抑素C(Cys C)、α-klotho蛋白、血清可溶性细胞间黏附分子-1(sICAM-1)与糖尿病肾病(DN)的相关性。方法 选取160例2型糖尿病(T2DM)患者,依据尿白蛋白/肌酐比值(ACR)将患者分为单纯T2DM组(40例,ACR<30 mg/g)、早期DN组(60例,ACR为30~300 mg/g)、临床DN组(60例,ACR>300 mg/g)。以60名体检健康者作为正常对照组。检测所有对象的血清Cys C、α-klotho蛋白、sICAM-1水平及肾功能指标[肌酐(Cr)、尿酸(UA)、尿素氮(BUN)]。采用Pearson相关分析评估Cys C、α-klotho蛋白、sICAM-1与ACR的相关性。采用受试者工作特征(ROC)曲线分析各项指标判断T2DM患者早期肾损伤的效能。结果 T2DM患者血清Cys C、sICAM-1、Cr、UA、BUN水平均高于正常对照组(P<0.05),血清α-klotho蛋白水平低于正常对照组(P<0.05)。血清Cys C、sICAM-1水平随着DN患者肾脏损伤的加重而升高(P<0.05),血清α-klotho蛋白水平随DN患者肾脏损伤的加重而降低(P<0.05)。Cys C、sICAM-1与ACR呈正相关(r值分别为0.562、0.613,P<0.05),α-klotho蛋白与ACR呈负相关(r=-0.702,P<0.05)。以ACR>30 mg/g作为判断T2DM患者早期肾损伤的标准。ROC曲线分析结果显示,Cys C、sICAM-1和α-klotho蛋白判断T2DM患者早期肾损伤的曲线下面积(AUC)分别为0.796、0.801、0.795,最佳临界值分别为1.39 mg/L、352.61 ng/mL、531.95 pg/mL,敏感性分别为73.75%、82.50%、75.00%,特异性分别为80.00%、68.33%、76.67%。结论 Cys C、sICAM-1和α-klotho蛋白在判断T2DM患者早期肾损伤中有一定价值。

关键词: 胱抑素C, α-klotho蛋白, 可溶性细胞间黏附分子-1, 糖尿病肾病

Abstract:

Objective To investigate the correlation between cystatin C(Cys C),α-klotho protein,serum soluble intercellular adhesion molecule-1(sICAM -1) and diabetic nephropathy(DN). Methods A total of 160 patients with type 2 diabetes mellitus(T2DM) were enrolled. The patients were classified into 2 groups according to urinary albumin to creatinine ratio(ACR). There were 40 cases of simple T2DM group(ACR<30 mg/g),60 cases of early DN group(ACR 30-300 mg/g) and 60 cases of clinical DN group(ACR>300 mg/g). Totally,60 healthy subjects were enrolled as healthy control group. The levels of serum Cys C,α-klotho protein,sICAM-1 and kidney function indexes [serum creatinine(Cr),uric acid(UA) and blood urea nitrogen(BUN)] were determined. Pearson correlation analysis was used to evaluate the correlation between Cys C,α-klotho protein,sICAM-1 and ACR. Receiver operating characteristic(ROC) curve analysis was used to evaluate the efficiency of early kidney injury in T2DM patients. Results Serum levels of Cys C,sICAM-1,Cr,UA and BUN in T2DM patients were higher than those in healthy control group(P<0.05),and serum α-klotho protein was lower(P<0.05). Cys C and sICAM-1 were increased with the progress of DN conditions(P<0.05),and serum α-klotho protein was decreased with the severity of DN(P<0.05). Cys C and sICAM-1 were positively correlated with ACR(r=0.562 and 0.613,respectively,P<0.05),and serum α- Klotho protein was negatively correlated with ACR(r=-0.702,P<0.05). ACR>30 mg/g was used as the criterion of early kidney injury in T2DM patients. The areas under curves(AUC) of Cys C,sICAM-1 and serum α-klotho protein for the diagnosis of early kidney injury in T2DM patients were 0.796,0.801 and 0.795,respectively. The optimal cut-off values were 1.39 mg/L,352.61 ng/mL and 531.95 pg/mL,the sensitivities were 73.75%,82.50% and 75.00%,and the specificities were 80.00%,68.33% and 76.67%,respectively. Conclusions Cys C,sICAM-1 and serum α-klotho protein play roles in the diagnosis of early kidney injury among T2DM patients.

Key words: Cystatin C, α-Klotho protein, Soluble intercellular adhesion molecule-1, Diabetic nephropathy

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