[Changes in the levels of prostate-specific antigen and its molecular forms with alpha 1-antichymotrypsin in patients...

Analysis of the changes in the levels of total prostatic specific antigen (t-PSA) in patients with benign prostatic hyperplasia (BPH) shows that the patient's age, size of the prostatic gland and chronic bacterial prostatitis influence the levels of t-PSA but have no effect on the levels of PSA-ACT. The relationship between the levels of t-PSA and age in BPH patients is explained by growing mass of benign hyperplasia causing mechanical load on the intact prostatic tissue. The maximal concentration of t-PSA of 8.7 +/- 1.22 ng/ml was observed in BPH patients at the age of 61-70 years. BPH stages, chronic pyelonephritis, chronic non-bacterial prostatitis, chronic renal failure are not essential for t-PSA and PSA-ACT and can be neglected in interpretation of t-PSA values in BPH patients.