SANDWICH ELISA ASSAY FOR QUANTITATIVE MEASUREMENT OF SP-40,40 IN SEMINAL PLASMA AND SERUM

被引:56
作者
CHOI, NH [1 ]
TOBE, T [1 ]
HARA, K [1 ]
YOSHIDA, H [1 ]
TOMITA, M [1 ]
机构
[1] SHOWA UNIV, SCH MED, DEPT UROL, SHINAGAWA KU, TOKYO 142, JAPAN
关键词
ELISA; Monoclonal antibody; Seminal plasma; SP-40,40;
D O I
10.1016/0022-1759(90)90186-Y
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
SP-40,40 was purified from human plasma by PEG fractionation, DEAE-Sephacel, Phenyl-Toyopearl 650M, Bio-Gel A-0.5m and hydroxylapatite chromatographies. Three monoclonal antibodies (IF12, IID9 and IVF4) to this protein were prepared: IF12 and IID9 were specific for the β subunit and IVF4 for the α subunit. The concentrations of SP-40,40 in seminal plasmas and sera were determined using a sandwich ELISA method. The results showed that the average concentrations of SP-40,40 were 438 ± 285 μg/ml in seminal plasmas and 111 ± 50 μg/ml in sera of normal donors. SP-40,40 concentrations in seminal plasmas of Klinefelter and excretory azoospermia patients were similar to those of normal donors. However, those of oligozoospermia and idiopathic azoospermia patients were about half the normal value. © 1990.
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页码:159 / 163
页数:5
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