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- W2185921670 abstract "Prostate-specific antigen (PSA) is the most useful marker in the early detection of prostate cancer and for the monitoring of patients with this diagnosis. Molecular forms of PSA and also human kallikrein 2 have been used to discriminate between benign prostatic hyperplasia and prostate cancer as well as for the detection of prostate cancer within the gray zone of PSA. In this respect, a literature survey on the diagnostic validity of free PSA (fPSA) related to total PSA (tPSA), PSA bound to alpha1-antichymotrypsin (ACT-PSA), and complexed PSA is given together with our results. The ratio of fPSA:tPSA has been shown to improve the specificity of prostate cancer diagnosis on the basis of tPSA measurements. Unnecessary biopsies can be reduced by about 19-64% in the total PSA range of 4-10 microg/liter while only missing 5-10% of cancers. Furthermore, carcinomas in patients with PSA values <4 microg/liter can be detected, indicating an improved sensitivity because of the percent fPSA at low PSA values. ACT-PSA or complexed PSA alone and the calculated derivatives are not superior in their discriminatory power compared with the percent fPSA. The diagnostic significance of the other molecular PSA forms and human kallikrein 2 needs to be evaluated in more extensive clinical trials." @default.
- W2185921670 created "2016-06-24" @default.
- W2185921670 creator A5035279287 @default.
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- W2185921670 creator A5082213419 @default.
- W2185921670 date "2000-11-01" @default.
- W2185921670 modified "2023-10-17" @default.
- W2185921670 title "Molecular forms of prostate-specific antigen and human kallikrein 2 as promising tools for early diagnosis of prostate cancer." @default.
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