title: Prostatic acid phosphatase: comparison of radioimmunoassay and enzyme activity assay.
abstract: Aspects of the clinical use of an enzymatic assay and a double antibody radioimmunoassay for prostatic acid phosphatase are compared. Standard blood sample collection and transport did not have a negative effect on the results of either assay. Our results show no substantial advantage in the use of a radioimmunoassay but emphasize the reliability of the enzymatic assay using alpha-naphthylphosphate as a substrate with respect to its predictive value and specificity in diagnosis and followup of patients with prostatic carcinoma.
mesh_terms: D000135:Acid Phosphatase / Q000097:blood*; D000293:Adolescent; D000328:Adult; D000368:Aged; D004796:Clinical Enzyme Tests; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009281:Naphthalenes; D009943:Organophosphorus Compounds; D011467:Prostate / Q000201:enzymology*; D011471:Prostatic Neoplasms / Q000175:diagnosis / Q000201:enzymology; D011863:Radioimmunoassay
chemical_list: D009281:Naphthalenes; D009943:Organophosphorus Compounds; C014694:naphthyl phosphate; D000135:Acid Phosphatase