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目的探讨β2-微球蛋白(β2-MG)和N-乙酰-B-D氨基葡萄糖苷酶(NAG)检测对肾病综合征和糖尿病肾病的诊断意义。方法对53例2型糖尿病患者、38例肾病综合征患者及30名健康体检者分别采用终点法测定NAG、采用免疫透射比浊法测定β2-MG,检测结果进行比较分析。结果肾病综合征组尿中NAG、β2-MG含量与对照组比较有显著升高,存在统计学意义(P<0.05);糖尿病组尿中NAG、β2-MG含量与对照组比较有明显的升高且有统计学意义(P<0.05)。结论NAG与β2-MG联合检测可提高诊断的阳性率,是诊断早期肾病综合征和早期糖尿病肾病的敏感实验室指标。
Objective To investigate the diagnostic value of β2-microglobulin (β2-MG) and N-acetyl-B-D glucosaminidase (NAG) in nephrotic syndrome and diabetic nephropathy. Methods 53 patients with type 2 diabetes mellitus, 38 patients with nephrotic syndrome and 30 healthy subjects were measured by end-point method NAG, β2-MG by immunoturbidimetric assay, the test results were compared and analyzed. Results The levels of NAG and β2-MG in the urine of nephrotic syndrome group were significantly higher than those in the control group (P <0.05). The urinary levels of NAG and β2-MG in diabetic nephropathy group were significantly increased compared with the control group High and statistically significant (P <0.05). Conclusion Combined detection of NAG and β2-MG can increase the positive rate of diagnosis and is a sensitive laboratory index for the diagnosis of early nephrotic syndrome and early diabetic nephropathy.