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Related Experiment Videos

Doxycycline levels in prostatic tissue and blood.

W Mathisen, E Normann, S Taksdal

    European Urology
    |January 1, 1975
    PubMed
    Summary

    Doxycycline accumulates in prostate tissue at levels significantly exceeding therapeutic concentrations, supporting its effectiveness in treating chronic bacterial prostatitis. This antibiotic shows a notable tendency to concentrate within the prostate gland.

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    Area of Science:

    • Pharmacology
    • Urology
    • Infectious Diseases

    Background:

    • Doxycycline is an antibiotic used for various infections.
    • Chronic bacterial prostatitis is a challenging condition to treat.
    • Understanding antibiotic tissue penetration is crucial for effective therapy.

    Purpose of the Study:

    • To quantify doxycycline concentrations in human prostatic tissue.
    • To determine if doxycycline accumulates in the prostate.
    • To correlate tissue levels with potential therapeutic efficacy in prostatitis.

    Main Methods:

    • Oral administration of doxycycline to 23 patients undergoing prostatectomy or cystectomy.
    • Simultaneous collection of blood and prostatic tissue samples during surgery.
    • Assay of doxycycline levels in both blood and tissue samples.

    Main Results:

    • Average doxycycline concentration in prostatic tissue was 2.75 µg/g.
    • Tissue concentrations were significantly higher than therapeutic levels.
    • Observed levels ranged from 0.85 µg/g to 4.81 µg/g, indicating accumulation.

    Conclusions:

    • Doxycycline demonstrates a significant tendency to accumulate in prostatic tissue.
    • Achieved concentrations in the prostate are well above therapeutic levels.
    • These findings support the clinical efficacy of doxycycline for chronic bacterial prostatitis.

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