Published online Dec 31, 2006.
https://doi.org/10.4111/kju.2006.47.12.1348
Anti-inflammatory Effect of Lycopene on Chronic Bacterial Prostatitis Rat Model
Abstract
Purpose
Chronic bacterial prostatitis (CBP) is the most common urological disease in adult males, with antibiotic therapy being the gold standard for its treatment. However, long-term therapy results in many side effects as well as bacterial resistance. For these reasons, there is a need for a new treatment modality to replace traditional antibiotic therapy. Lycopene, an extract of tomatoes, has antioxidant effects against various bacteria and synergistic effects with antibiotics. We evaluate the synergistic effects of lycopene on the treatment of CBP in an animal model.
Materials and Methods
Forty five rats demonstrating CBP were randomly divided into 4 groups; the control, lycopene, ciprofloxacin and lycopene with ciprofloxacin groups. All drug treatments were conducted over a period of 2 weeks. After treatment, the results were analyzed, with the microbiological cultures and histological findings of the prostate and urine samples compared with the control group and between each group.
Results
The uses of ciprofloxacin, and lycopene with ciprofloxacin showed statistically significant decreases in bacterial growth and improvements in prostatic inflammation compared with the control group (p<0.05). The lycopene with ciprofloxacin group showed a statistically significant decrease in bacterial growth and improvements in prostatic inflammation compared with the ciprofloxacin group (p<0.05).
Conclusions
These results suggest that lycopene may be an effective material in the treatment of CBP. Especially, the combination treatment of lycopene and ciprofloxacin has synergistic effects. Therefore, it is suggest that the combination of lycopene and ciprofloxacin may be effective in the treatment of CBP, and with a higher success rate.
Fig. 1
Prostate section of a chronic bacterial prostatitis rat, obtained 2 weeks after each treatment (H&E, Bar=100µm). (A) The acinar structures are severely atrophied and obliterated. Marked chronic inflammatory cell infiltration and interstitial fibrosis are seen (Group I). (B) The acinar structures are moderately atrophied and obliterated. Moderate chronic inflammatory cell infiltration and interstitial fibrosis are seen (Group II). (C) The acinar structures are mildly shrunken, with mild lymphocytic infiltration and fibrosis in the interstitial space (Group III). (D) The acinar structures have a nearly normal appearance, with mild lymphocytic infiltration and focal fibrosis in the interstitial space (Group IV).
Fig. 2
Severity scores of chronic inflammatory cell infiltrations, acinar changes and interstitial fibrosis in each group. The values, expressed the means±SD, are compared with that of the control group. *: p<0.05, compared with the control group, †: p<0.05, compared with the ciprofloxacin group, SD: standard deviation.
Table 1
Microbiological data of the prostate tissue and urine culture
References
-
Pfau A. Prostatitis. A continuing enigma. Urol Clin North Am 1986;13:695–715.
-
-
Nickel JC, Olson ME, Costerton JW. Rat model of experimental bacterial prostatitis. Infection 1991;19 Suppl 3:126–130.
-
-
Vicari E, Rubino C, De Palma, Longo G, Lauretta M, Consoli S, et al. Antioxidant therapeutic effeciency after the use of carnitine in infertile patients with bacterial or non bacterial prostato-vesiculo-epididymitis. Arch Ital Urol Androl 2001;73:15–25.
-
-
Shahed AR, Shoskes DA. Oxidative stress in prostatic fluid of patients with chronic pelvic pain syndrome. J Androl 2000;21:669–675.
-
-
Lee YS, Shin MS, Cho YH. Experimental animal model of bacterial prostatitis. Korean J Urol 2001;42:636–641.
-
-
Stamey TA, Meares EM Jr, Winningham DG. Chronic bacterial prostatitis and diffusion of drugs into prostatic fluid. J Urol 1970;103:187–194.
-
-
Herzog A, Siler U, Spitzer N, Seifert N, Denelavas A, Hunziker PB, et al. Lycopene reduced gene expression of steroid targets and inflammatory markers in normal rat prostate. FASEB J 2005;19:272–274.
-
-
Kaplan SA. Lycopene: modes of action to promote prostate health. J Urol 2005;174:679.
-