PMID- 14574807 OWN - NLM STAT- MEDLINE DCOM- 20040309 LR - 20061115 IS - 1009-3591 (Print) IS - 1009-3591 (Linking) VI - 9 IP - 6 DP - 2003 Sep TI - [Diagnostic value of complexed prostate-specific antigen for prostate cancer]. PG - 431-3 AB - OBJECTIVE: To assess the clinical value of serum complexed prostate-specific antigen(cPSA) in the diagnosis of prostate cancer (PCa). METHODS: Serum samples were obtained from 110 men with untreated benign prostatic hyperplasia (BPH) and 78 men with untreated PCa. The levels of cPSA, total PSA (tPSA) were determined by autoimmunochemistry luminescence method. RESULTS: Both cPSA and cPSA/tPSA ratio were significantly different between patients with PCa and BPH (P < 0.005), especially, in men with tPSA values between 4.0-10.0 micrograms/L (the diagnostic gray zone). When cPSA/tPSA > or = 0.78 was taken as the cut-off value conjugated with tPSA < or = 10.0 micrograms/L, the sensitivity, specificity, negative predictive value and positive predictive value were as high as 97.8%, 95.8%, 81.9% and 96.5%. CONCLUSIONS: With the introduction of cPSA and cPSA/tPSA ratio, early diagnosis of PCa by the assessment of tPSA has been made more sensitive and reliable, especially when the tPSA is within the diagnostic gray zone. FAU - Su, Han-Wen AU - Su HW AD - Department of Clinical Laboratory Science, Renmin Hospital, Wuhan University, Wuhan, Hubei 430060, China. FAU - Li, Yan AU - Li Y FAU - Xu, Pu AU - Xu P LA - chi PT - English Abstract PT - Journal Article PL - China TA - Zhonghua Nan Ke Xue JT - Zhonghua nan ke xue = National journal of andrology JID - 101093592 RN - EC 3.4.21.77 (Prostate-Specific Antigen) SB - IM MH - Aged MH - Aged, 80 and over MH - Humans MH - Male MH - Middle Aged MH - Prostate-Specific Antigen/*blood MH - Prostatic Hyperplasia/blood/diagnosis MH - Prostatic Neoplasms/blood/*diagnosis EDAT- 2003/10/25 05:00 MHDA- 2004/03/10 05:00 CRDT- 2003/10/25 05:00 PHST- 2003/10/25 05:00 [pubmed] PHST- 2004/03/10 05:00 [medline] PHST- 2003/10/25 05:00 [entrez] PST - ppublish SO - Zhonghua Nan Ke Xue. 2003 Sep;9(6):431-3.