检验医学 ›› 2019, Vol. 34 ›› Issue (11): 1015-1020.DOI: 10.3969/j.issn.1673-8640.2019.11.013

• 技术研究与评价·论著 • 上一篇    下一篇

酶法检测血清1,5-无水山梨醇的性能验证和临床应用评价

周宓1, 沈若坚1, 吴卫云1, 颜红梅2, 郭玮1, 潘柏申1, 王蓓丽1()   

  1. 1.复旦大学附属中山医院检验科,上海 200032
    2.复旦大学附属中山医院内分泌科,上海 200032
  • 收稿日期:2018-09-10 出版日期:2019-11-30 发布日期:2019-12-05
  • 作者简介:null

    作者简介:周 宓,1974年生,学士,主管技师,主要从事临床生化和免疫检测工作。

  • 基金资助:
    国家自然科学基金面上项目(81572064);国家自然科学基金面上项目(81772263);上海市卫生计生系统重要薄弱学科建设项目(2015ZB0201)

Performance evaluation and clinical application of 1,5-anhydrous sorbitol determination by enzymatic method

ZHOU Mi1, SHEN Ruojian1, WU Weiyun1, YAN Hongmei2, GUO Wei1, PAN Baishen1, WANG Beili1()   

  1. 1.Department of Clinical Laboratory,Zhongshan Hospital,Fudan University,Shanghai 200032,China
    2.Department of Endocrinology and Metabolism,Zhongshan Hospital,Fudan University,Shanghai 200032,China
  • Received:2018-09-10 Online:2019-11-30 Published:2019-12-05

摘要:

目的 对酶法检测1,5无水山梨醇(1,5-AG)的分析性能进行评价,并探讨其在糖尿病(DM)合并心肌梗死(AMI)中的作用。方法 选取单纯DM患者70例(单纯DM组)、AMI患者56例(非DM组)、DM合并AMI患者78例(DM合并AMI组)、表观健康者120名。对酶法检测1,5-AG的性能(正确度、精密度、检测下限、线性范围、参考区间)进行验证。同时检测204例患者的1,5-AG、天门冬氨酸氨基转移酶(AST)、丙氨酸氨基转移酶(ALT)、γ-谷氨酰基转移酶(GGT)、碱性磷酸酶(ALP)、尿素氮(BUN)、肌酐(Cr)、尿酸(UA)、总胆固醇(TC)、三酰甘油(TG)、高密度脂蛋白胆固醇(HDL-C)、低密度脂蛋白胆固醇(LDL-C)、血糖(Glu)、糖化白蛋白(GA)、糖化血红蛋白(HbA1c)及β-羟丁酸(β-HB)。采用Pearson相关分析评价1,5-AG与Glu、GA、HbA1c的相关性。结果 酶法检测1,5-AG定值校准品的相对偏移为4.05%,低于厂商声明的偏移(<10.0%)。批内变异系数(CV)为0.60%~3.43%、批间CV为1.02%~3.14%,均符合厂商声明的要求(<5%)。重复检测20次1,5-AG水平接近厂家声明的检测限(0.25 μmol/L)的样本(0.28 μmol/L),20次均检出。线性范围为24.5~147.5 μmol/L。120名表观健康者的血清1,5-AG检测结果有115名落在厂商声明的参考区间(>85.29 μmol/L)内,参考区间验证通过。1,5-AG与Glu、GA、HbA1c均呈负相关(r值分别为-0.342、-0.591、-0.685,P<0.001)。DM组1,5-AG、ALT、AST、Glu、GA、HbA1c、β-HB及HDL-C水平与非DM组比较差异均有统计学意义(P<0.01、P<0.001)。DM合并AMI组1,5-AG、GA、HbA1c、AST、ALT与单纯DM组比较差异均有统计学意义(P<0.01、P<0.001)。结论 1,5-AG对DM的诊断具有较大价值,或可作为DM的诊断指标及患者血糖短期波动的监测指标。

关键词: 1,5-无水山梨醇, 糖尿病, 心肌梗死

Abstract:

Objective To evaluate the performance of 1,5-anhydrous sorbitol(1,5-AG) determination by enzymatic method,and to analyze its role in diabetes mellitus(DM) and acute myocardial infarction(AMI). Methods A total of 70 patients with DM(DM group),56 patients with AMI(non-DM group),78 patients with DM and AMI(DM+AMI group) and 120 healthy subjects were enrolled. The performance of 1,5-AG determination(correctness,precision,lower limit of detection,linear range and reference interval) by enzymatic method was verified. The determinations of 1,5-AG,aspartate aminotransferase(AST),alanine aminotransferase(ALT),gamma-glutamyltransferase(GGT),alkaline phosphatase(ALP),blood urea nitrogen(BUN),creatinine(Cr),uric acid(UA),total cholesterol(TC),triglyceride(TG),high-density lipoprotein cholesterol(HDL-C),low-density lipoprotein cholesterol(LDL-C),blood glucose(Glu),glycated albumin(GA),glycated hemoglobin A1c(HbA1c) and beta-hydroxybutyrate(β-HB) were performed. Pearson correlation analysis was used to evaluate the correlation between 1,5-AG and Glu,GA and HbA1c. Results By enzymatic method,the 1,5-AG calibrator had a relative bias of 4.05%,which was below the manufacturer's stated bias(<10.0%). The within-run coefficient of variation(CV) was 0.60%-3.43%,and the between-run CV was 1.02%-3.14%,which met the manufacturer's stated requirements(<5%). After repeating determination for 20 times,1,5-AG level was close to the manufacturer's stated detection limit(0.25 μmol/L) of the sample(0.28 μmol/L),and those of 20 times were all determined. The linear range was 24.5-147.5 μmol/L. Of the 120 healthy subjects,the 1,5-AG determination results of 115 cases were fell within the reference range(>85.29 μmol/L)declared by the manufacturer,and the reference interval was validated. 1,5-AG was negatively correlated with Glu,GA and HbA1cr =-0.342,-0.591 and -0.685,P<0.001). The levels of 1,5-AG,ALT,AST,Glu,GA,HbA1c,β-HB and HDL-C in DM group had statistical significance compared with those in non-DM group(P<0.01,P<0.001). There was statistical significance in the determinations of 1,5-AG,GA,HbA1c,AST and ALT between DM and DM+AMI groups(P<0.01,P<0.001). Conclusions 1,5-AG plays a role in the early diagnosis of DM,and it can be used as a diagnostic indicator for DM.

Key words: 1,5-Anhydrous sorbitol, Diabetes mellitus, Acute myocardial infarction

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