title: [Effects of antibiotic and anti-inflammatory treatment on serum PSA and free PSA levels in patients with chronic prostatitis IIIA].
abstract: OBJECTIVE
  To investigate the effect of antibiotics and a nonsteroidal anti-inflammatory agent on the level of total prostate specific antigen (PSA) and free PSA ratio (F-PSAR) in patients with chronic prostatitis IIIA.
  
  
  METHODS
  A total of 228 outpatients diagnosed as with chronic prostatitis III A received 4-week antibiotic and anti-inflammatory treatment. The PSA level and F-PSAR were determined before and after the treatment, and the changes analyzed.
  
  
  RESULTS
  Significant variations were observed in the median PSA concentrations (3.51 microg/L and 2.75 microg/L) and F-PSAR (0.25% and 0.27%) 4 weeks after the treatment. Sixty-five of the patients (28.5%) presented with serum PSA greater than 4 ng/ml, the mean PSA decreased by 32.9%, from 6.24 microg/L before the treatment to 4.58 microg/L 4 weeks after the treatment (P < 0.05), and the serum PSA was normalized in 18 of the 65 patients (27.7%). The median variation of F-PSAR (0.16% and 0.22%) was greater than that of PSA. The variation indexes obtained 4 weeks after the treatment showed no statistical difference from those observed 8 weeks after the treatment.
  
  
  CONCLUSIONS
  Chronic prostatitis IIIA appears to contribute to increased serum PSA levels in some men. Antibiotic and anti-inflammatory treatment could significantly reduce the PSA level and increase F-PSAR.
authors.affiliation: Departmen of Urology, Guangzhou General Hospital of Guangzhou Command/Institute of Urology of Guangzhou Command, Guangzhou, Guangdong 510010, China. Urology999@yahoo.com.cn
authors.forename: Wei
authors.initials: W
authors.lastname: Wang
authors.forename: Wei-lie
authors.initials: WL
authors.lastname: Hu
authors.forename: Huai
authors.initials: H
authors.lastname: Yang
authors.forename: Xiao-fu
authors.initials: XF
authors.lastname: Qiu
authors.forename: Chang-zheng
authors.initials: CZ
authors.lastname: Zhang
mesh_terms: D000328:Adult; D000368:Aged; D000900:Anti-Bacterial Agents / Q000627:therapeutic use*; D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000627:therapeutic use*; D002908:Chronic Disease; D006801:Humans; D008297:Male; D008875:Middle Aged; D017430:Prostate-Specific Antigen / Q000097:blood*; D011472:Prostatitis / Q000097:blood / Q000188:drug therapy*
chemical_list: D000900:Anti-Bacterial Agents; D000894:Anti-Inflammatory Agents, Non-Steroidal; D017430:Prostate-Specific Antigen