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  • Title: [Role of gamma-seminoprotein (gamma-SM) and prostatic acid phosphatase (PAP) as tumor markers of prostatic cancer].
    Author: Watanabe M, Kitamura Y, Komatsubara S, Sakata Y.
    Journal: Hinyokika Kiyo; 1988 Dec; 34(12):2135-41. PubMed ID: 2467542.
    Abstract:
    Between June, 1986 and December, 1987, the serum gamma-Sm and PAP was measured in 29 men with untreated prostatic cancer, 45 with treated prostatic cancer (32 were well-controlled and 13 poorly controlled), 82 with benign prostatic hypertrophy and 10 with other urological diseases. All of the patients with prostatic cancer had histologically proven disease. Enzyme immunoassay for gamma-Sm and radioimmunoassay for PAP were used. The cut-off value for gamma-Sm was 4 ng/ml and that for PAP was 3 ng/ml. The mean values of gamma-Sm and PAP were statistically high in the untreated group and also in poorly-controlled group. In the untreated group, the rate of positivity for gamma-Sm and for PAP were 69% respectively and 83% of the patients had elevated values for either or both of these markers. In clinical stage A and B, gamma-Sm and PAP values were within the normal limit, however the concentrations of mean gamma-Sm and PAP correlated well with the stage of disease. In the poorly-controlled group, positive gamma-Sm values were detected in 75% and PAP in 67%, whereas almost all of the patients had normal values for these markers in the well-controlled group. In prostatic hypertrophy, elevated gamma-Sm values were detected in 15% and elevated PAP values in 6%. After the onset of treatment, elevated values were normalized in 66.7% of the patients for gamma-Sm and in 68.4% for PAP. In the untreated group, gamma-Sm tended to show a more prompt response. In the ill-controlled group, gamma-Sm and PAP returned to normal in 50% of the patients. gamma-Sm and PAP values were well correlated with the course of the prostatic cancer and the clinical usefulness became more obvious with a combination of these markers.
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