Summary
In this study we collected prostatectomy specimens from 20 men receiving selected preoperative antimicrobials: oral carbenicillin, norfloxacin, or ciprofloxacin. The prostatectomy specimens were then individually separated into stroma and epithelium. The intraprostatic differential concentrations were determined using High Performance Liquid Chromatography. The ratio of stromal to epithelial concentrations of the antimicrobials were calculated for carbenicillin (0.95), norfloxacin (1.28), and ciprofloxacin (1.1). The quinolones tended to have higher stromal concentrations (although this was not statistically significant). Carbenicillin was found in levels three times its MIC90 forEscherichia coli while the quinolones were detected in concentrations which greatly exceeded theirE. coli MIC90s.
Zusammenfassung
Von 20 Patienten, die präoperativ Carbenicillin, Norfloxacin oder Ciprofloxacin oral verabreicht bekommen hatten, wurden bei der Prostatektomie Gewebeproben gewonnen. In jedem Fall wurden die Proben nach Stroma und Epithel getrennt. Die Konzentrationen im jeweiligen Gewebeanteil wurden mittels Hochdruckflüssigkeitschromatographie gemessen. Der Quotient aus Konzentration in Stroma und Epithel war bei Carbenicillin 0,95, bei Norfloxacin 1,28 und bei Ciprofloxacin 1,1, das heißt die Chinolone zeigten eine Tendenz zu höheren Konzentrationen im Stroma als im Epithel (dieser Unterschied war jedoch nicht statistisch signifikant). Nach oraler Gabe hatte Carbenicillin in der Prostata die dreifachen Konzentrationen der MHK90-Werte fürEscherichia coli erreicht, die Konzentrationen der Chinolone lagen weit über den MHK90-Werten fürEscherichia coli.
Similar content being viewed by others
References
Stamey, T. A., Mears, E. M., Winningham, D. G. Chronic bacterial prostatitis and the diffusion of drugs into prostatic fluid. J. Urol. 103 (1970) 187–194.
Mears, E. M. Prostatitis syndromes: new perspectives about old woes. J. Urol. 123 (1980) 141–147.
Twomey, P. A. High performance liquid chromatography analysis of carbenicillin and its degradation products. J. Pharm. Sci. 70 (7) (1981) 824–826.
Boppana, V. K., Swanson, B. N. Determination of norfloxacin, a new nalidixic acid analog, in human serum and urine by high performance liquid chromatography. Antimicrob. Agents Chemother. 21 (5) (1982) 808–810.
Anderson, R. U., Fair, W. R. Physical and chemical determinations of prostatic secretions, in benign hyperplasia, prostatitis, and adenocarcioma. Invest. Urol. 14 (1976) 137.
Pfau, A., Perlberg, S., Shapira, A. The pH of the prostatic fluid in health and disease: implications of the treatment in chronic bacterial prostatitis. J. Urol. 119 (1978) 354.
Dalhoff, W., Weidner, W. Diffusion of ciprofloxacin into the prostatic fluid. Eur. J. Clin. Microbiol. 3 (4) (1984) 360–362.
Boerema, J. B. J., Debruyne, F. M. J., Dalhoff, A. Intraprostatic concentrations of ciprofloxacin after intravenous administration. Letter. Lancet ii (1984) 695–696.
Naber, K. G. Use of quinolones in urinary tract infections and prostatitis. Rev. Infect. Dis. 11 (Suppl. 5) (1989) S1321-S1337.
Bergeron, M. G., Thabet, M., Ror, R., Lessard, C., Foucault, P. Norfloxacin into human renal and prostatic tissues. Antimicrob. Agents Chemother. 28 (2) (1986) 349–350.
Bologna, M., Vaggi, L., Fouchetti, C. M., Martini, E. Bactericidal intraprostatic concentrations of norfloxacin. Lancet ii (1983) 280.
Gombert, M. E., duBouchat, L., Aulicino, T. M., Berkowitz, L. B., Macchin, R. J. Brief report: prostatic tissue concentrations of ciprofloxacin after oral administration. Am. J. Med. 82 (Suppl. 4a) (1987) 130–132.
Bologna, M., Vaggi, L., Flammini, D., Carlucci, G., Forchette, C. M. Norfloxacin in prostatitis: correlation between HPLC tissue concentrations and clinical results. Drugs Exp. Clin. Res. XI (2) (1985) 95–100.
Grabe, M., Forsgren, A., Bjork, T. Concentrations of ciprofloxacin in serum and prostatic tissue in patients undergoing transurethral resection. Eur. J. Clin. Microbiol. 5 (2) (1986) 211–212.
Dan, M., Golomb, J., Gorea, A., Braf, Z., Berger, S. A. Concentration of ciprofloxacin in human prostatic tissue after oral administration. Antimicrob. Agents Chemother. 30 (1986) 88–89.
Wallace, J. F., Atlas, E., Bear, D. M., Brown, N. K., Clark, H., Turck, M. Evaluation of an indanyl ester of carbenicillin. Antimicrob. Agents Chemother. 10 (1970) 223–226.
Sanders, C. C., Sanders, W. E., Goerig, R. V. Overview of preclinical studies with ciprofloxacin. Am. J. Med. 82 (Suppl. 4a) (1987) 2–11.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Philpott, A.C., Crawford, E.D. & Miller, G.J. A new method for assaying antimicrobials in the prostate. Infection 19 (Suppl 3), S150–S153 (1991). https://doi.org/10.1007/BF01643686
Issue Date:
DOI: https://doi.org/10.1007/BF01643686