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前列腺特异抗原（prostatespecificantigen,PSA）是继前列腺酸性糖蛋白之后出现的又一种前列腺特异的血清学标志物。自从1979年名人从前列腺提取液中首次提取出来至今．PSA的研究已进人暂新阶段．本文就PSA的研究现状作一综述。1理化特性及存在形式PSA是一种丝氨酸蛋白酶，主要
Prostate specific antigen (PSA) is another prostate-specific serological marker following prostatic acid glycoprotein. Since 1979, celebrities extracted from prostate extract for the first time since. PSA research has entered a transient phase. This article reviews the research status of PSA. 1 Physical and chemical properties and the form of PSA is a serine protease, mainly