尿胱抑素C和α1-酸性糖蛋白在早期糖尿病肾病诊断中的价值

2021-04-06 03:23:11翟迎九付彬姚强慕开达张菁杨燕萍
中国现代医生 2021年4期
关键词:糖尿病检测

翟迎九 付彬 姚强 慕开达 张菁 杨燕萍

[摘要] 目的 研究尿胱抑素C(Cystatin C,CysC)和α1-酸性糖蛋白(Alpha-1-acid glycoprotein,AAG)在早期糖尿病腎病诊断中的价值。 方法 选择2017年6月至2018年6月上海市浦东新区周浦医院内分泌科住院的2型糖尿病患者130例,根据尿微量白蛋白(Urine microalbumin,U-mALB)的不同分为单纯糖尿病组(对照组)和微量白蛋白尿组(试验组)。采用酶联免疫吸附法(ABC-ELISA)检测尿CysC、尿AAG,比较各组尿CysC和AAG水平的差异,分析尿CysC、尿AAG与尿U-mALB的相关性。 结果 对照组与试验组的尿CysC分别为(1.026±0.673)mg/L和(1.556±0.846)mg/L,尿AAG分别为(0.321±0.107)mg/L和(0.368±0.142)mg/L,两组比较,差异有统计学意义(P<0.05);Pearson相关分析显示,所有入组的糖尿病患者尿CysC(r=0.434,P=0.000)和尿AAG(r=0.267,P=0.002)与尿U-mALB呈正相关;联合检测尿CysC和尿AAG的灵敏度、特异度、阳性预测值、阴性预测值均明显高于任一单项指标。 结论 检测尿CysC和尿AAG可反映糖尿病患者早期肾损伤情况,联合检测对于诊断早期糖尿病肾病具有较高的临床价值。

[关键词] α1-酸性糖蛋白;胱抑素C;2型糖尿病;糖尿病肾病

[中图分类号] R587.1          [文献标识码] B          [文章编号] 1673-9701(2021)04-0034-04

The value of urinary cystatin C and α1-acid glycoprotein in the diagnosis of early diabetic nephropathy

ZHAI Yingjiu1   FU Bin2   YAO Qiang3   MU Kaida1   ZHANG Jing1   YANG Yanping1

1.Department of Endocrinology, Zhoupu Hospital, Pudong New Area in Shanghai City, Shanghai 201318, China; 2.Kangqiao Health Service Center, Pudong New Area in Shanghai City, Shanghai 201315, China; 3.Zhoupu Health Service Center, Pudong New Area in Shanghai City, Shanghai 201318, China.

[Abstract] Objective To study the value of urinary cystatin C(CysC) and Alpha-1-acid glycoprotein(AAG) in the early diagnosis of diabetic nephropathy. Methods A total of 130 patients with type 2 diabetes in the department of endocrinology of Zhoupu Hospital, Pudong New Area in Shanghai City from June 2017 to June 2018 were enrolled. According to the difference of urine microalbumin(U-mALB), they were divided into simple diabetes group(control group) and microalbuminuria group(experimental group). Urine CysC and urine AAG were detected by enzyme-linked immunosorbent assay(ABC-ELISA), and the differences in urine CysC and AAG levels between the groups were compared and analyzed. The correlation between urine CysC, urine AAG, and urine U-mALB was analyzed. Results The urine CysC of the control group and the experimental group were(1.026±0.673)mg/L and(1.556±0.846)mg/L, and AAG of the two groups were(0.321±0.107)mg/L and(0.368±0.142) mg/L, the differences were statistically significant(P<0.05). Pearson related analysis found that urine CysC(r=0.434, P=0.000) and AAG(r=0.267, P=0.002) of all enrolled diabetic patients were positively correlated with urine U-mALB; the sensitivity, specificity, positive predictive value, and negative predictive value of combined detection of urine CysC and AAG were significantly higher than those of any single index. Conclusion The detection of urine CysC and AAG can reflect the early renal damage of diabetes, and the combined detection has high clinical value for the diagnosis of early diabetic nephropathy.

[Key words] α1-acid glycoprotein; Cystatin C; Type 2 diabetes; Diabetic nephropathy

糖尿病导致的肾脏病变在慢性肾脏病(Chronic kidney disease,CKD)中的比例逐年增加,目前,在我国有20%~40%糖尿病患者合并糖尿病肾病[1]。糖尿病肾病发展缓慢,早期缺乏特异性临床症状,一旦发现,则往往已经是肾病终末期。因此,早发现并及早给予干预治疗非常重要。糖尿病肾病诊断的“金标准”依赖肾脏穿刺活检,有创检查在临床中的应用受到极大限制,而无创的糖尿病肾病早期诊断手段主要依赖实验室生物标志物检测。本研究以2型糖尿病患者130例为观察对象,检测其尿微量白蛋白(U-mALB)、尿胱抑素C(Cys C)和尿α1-酸性糖蛋白(AAG)及其他相关生化指标,评估尿CysC、尿AAG指标在糖尿病肾病早期诊断中的价值。

1 资料与方法

1.1一般资料

选择2017年6至2018年6月上海市浦东新区周浦医院内分泌科住院的2型糖尿病患者130例,其中男64例,女66例;年龄24~88岁,平均(61.21±14.23)岁。糖尿病诊断和分类标准采用目前通用的世界卫生组织(World health organization,WHO)1999年标准[2]。……

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