臨床化学
Online ISSN : 2187-4077
Print ISSN : 0370-5633
ISSN-L : 0370-5633
ヒトアルブミンの酵素免疫測定法の開発
水野 洋子後藤 勝庄野 和子遠藤 幸子弘田 明成磯部 淳一島 健二
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1986 年 15 巻 2 号 p. 80-84

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An enzymeimmunoassay (EIA) was established for measuring human urinary albumin. The assay was based on a two-step sandwitch method by using polystyrene beads as the solid-phase. Measurement covered from 5 to 1,000 ng/ml, and its coefficients of veriation of intraassay and interassay were 5.0-9.0% and 8.0-12.4% respectively. Dilution test showed a good linearity in the range of 0.1-1.0 O.D., and the recovery ratio was between 96-124%, This EIA showed a good correlation with an commercially available RIA system (r=0.974, n=78). The urinary albumin of normal and diabetic subjects, free of proteinuria by testtape method, was 7.12±3.96 and 31.87±52.72 mg/g·cr respectively, and the latter group showed a significantly (p<0.025) higher urinary albumin. This EIA could be a useful system for detecting trace amount of urinary albumin and be applied to the diagnosis of early renal dysfunction.
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