检验医学 ›› 2021, Vol. 36 ›› Issue (3): 281-284.DOI: 10.3969/j.issn.1673-8640.2021.03.010

• 临床应用研究∙论著 • 上一篇    下一篇

血清NGAL和Cys C联合检测在诊断2型糖尿病早期肾损伤中的价值

朱庆华, 王伟伟, 邹广慧, 董志武()   

  1. 上海市第六人民医院金山分院检验科,上海 201599
  • 收稿日期:2020-04-08 出版日期:2021-03-30 发布日期:2021-03-30
  • 通讯作者: 董志武
  • 作者简介:董志武,E-mail:dongzw312@163.com
    朱庆华,男,1985年生,主管技师,主要从事代谢性疾病血清标志物研究。
  • 基金资助:
    上海市科学技术委员会自然科学基金资助项目(19ZR1439300);上海市卫生健康委员会资助项目(201640131);上海市金山区卫生健康委员会资助项目(JSKJ-KTQN-2017-11)

Combined detection of serum NGAL and Cys C in the diagnosis of early nephropathy in patients with type 2 diabetes mellitus

ZHU Qinghua, WANG Weiwei, ZOU Guanghui, DONG Zhiwu()   

  1. Department of Clinical Laboratory,Jinshan Branch of Shanghai Sixth People's Hospital,Shanghai 201599,China
  • Received:2020-04-08 Online:2021-03-30 Published:2021-03-30
  • Contact: DONG Zhiwu

摘要:

目的 探讨血清中性粒细胞明胶酶相关脂质运载蛋白(NGAL)与胱抑素C(Cys C)联合检测在诊断2型糖尿病早期肾损伤中的作用。方法 选取2型糖尿病患者95例,根据24 h尿蛋白排泄率(UAER)分为正常白蛋白尿(NA)组(29例,UAER<30 mg/24 h)、微量白蛋白尿(MA)组(33例,UAER为30~<300 mg/24 h)和临床白蛋白尿(CA)组(33例,UAER>300 mg/24 h)。以78名体检健康者作为正常对照组。检测所有对象的血清尿素、肌酐(Cr)、尿酸(UA)、NGAL、Cys C水平及尿α1-微球蛋白(α1-MG)水平,采用受试者工作特征(ROC)曲线评价各项指标诊断2型糖尿病早期肾损伤的价值。结果 MA组和CA组血清尿素、Cr、UA、NGAL、Cys C水平及尿α1-MG水平均高于NA组和正常对照组(P<0.05)。MA组与CA组之间、NA组与正常对照组之间各项指标差异均无统计学意义(P>0.05)。ROC曲线分析结果显示,血清尿素、Cr、UA、NGAL、Cys C及尿α1-MG单项检测诊断2型糖尿病早期肾损伤的曲线下面积(AUC)分别为0.649、0.713、0.632、0.795、0.869和0.660,NGAL与Cys C联合检测诊断2型糖尿病早期肾损伤的AUC为0.881。NGAL与Cys C联合检测的AUC高于各项指标单项检测的AUC(P<0.000 1)。结论 血清NGAL和Cys C在2型糖尿病早期肾损伤的诊断中有重要价值,是理想的筛查指标。

关键词: 中性粒细胞明胶酶相关脂质运载蛋白, 胱抑素C, 2型糖尿病, 肾损伤

Abstract:

Objective To investigate the role of combined detection of neutrophil gelatinase-associated lipocalin(NGAL) and cystatin C(Cys C) in early renal injury in patients with type 2 diabetes mellitus(T2DM). Methods A total of 95 T2DM patients were enrolled in the study. According to 24-hour urinary albumin excretion rate(UAER),there were 29 patients with normal urinary albumin(NA group,UAER<30 mg/24 h),33 patients with microalbuminuria(MA group,UAER:30-300 mg/24 h)and 33 patients with clinical albuminuria(CA group,UAER>300 mg/24 h). Seventy-eight healthy subjects were collected into control group. The levels of serum urea,creatine,uric acid,NGAL,Cys C and urine α1-microglobulin were measured. The receiver operating characteristic(ROC)curve were applied for the evaluation of the diagnostic value of the indices. Results The levels of serum urea,creatine,uric acid,NGAL,Cys C and urine α1-microglobulin in MA and CA groups were significantly higher than those in the NA and control groups(P<0.05). However,no significant difference was found in these indices between the NA and control group,or between the MA and CA group(P>0.05). ROC curve showed that the area under curve(AUC)of serum urea,creatine,uric acid,NGAL,Cys C and urine α1-microglobulin were 0.649,0.713,0.632,0.795,0.869 and 0.660,respectively. The joint detection of NGAL and Cys C had a higher AUC value(0.881) than the above-mentioned single index(P<0.000 1). Conclusions The combined detection of NGAL and Cys C can facilitate the diagnosis for early renal injury in T2DM patients and serve as an ideal index of screening.

Key words: Neutrophil gelatinase-associated lipocalin, Cystatin C, Type 2 diabetes mellitus, Renal injury

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