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《》 1993-05
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ENZYME-LINKED IMMUNOSORBENT ASSAY(ELISA) FOR MICROALBUMINURIA AND ITS CLINICAL USE

Zhang Guisheng Liu Guoming Wang Xinhong Sun min Central Laboratory,Shanghai Second Medical University, Shanghai 200025  
Periodic monitoring of microalbumin uria could be used to detect diabetic nephro-pathy at early, potentially reversible state. The presence of urinary Alb might also be an early sensitive indicator of renal vascular injury due to high blood pressure. We developed a method for ELISA of microalbuminuria. A high titer anti-human Alb serum,anti(h Alb)IgG-HRP conjugate and anti(h Alb)IgG coated microplate were all developed in our laboratory. The method was sensitive and simple. The assay range was 5-500ng/ml and sensitivity was 0.76ng of albumin. The intraassay and inter-assay CV% were 6.4% and 16.4% respectively. Albumin excretion values were 8.86 (SD 9.23)mg/24h in healthy subjects (n = 80) and 40.4(SD 40.4)mg/24h in diabetics (n= 16). Albumin excretion values were 15.17(SD 14.42)mg/24h,21.46(SD 24.34)mg/ 24h and 24.6(SD 18.9)mg/24h in patients with essential hypertension of I, II, III stages (WHO criteria) respectively.
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