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Zinc in human semen.

D Canale, M Bartelloni, A Negroni

    International Journal of Andrology
    |December 1, 1986
    PubMed
    Summary
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    Seminal zinc levels help diagnose seminal pathway patency, with higher concentrations indicating unobstructed pathways. This metal is primarily secreted by the prostate gland.

    Area of Science:

    • Urology
    • Reproductive Medicine
    • Clinical Chemistry

    Background:

    • Seminal plasma composition is crucial for male reproductive health.
    • Zinc is an essential trace element with known roles in male fertility.
    • Accurate measurement of seminal zinc can aid in diagnosing male infertility.

    Purpose of the Study:

    • To evaluate seminal zinc levels as a diagnostic marker for seminal pathway patency.
    • To investigate the relationship between seminal zinc concentration and various causes of male infertility.
    • To determine the primary source of zinc secretion in seminal fluid.

    Main Methods:

    • A new colorimetric method was employed to measure seminal zinc concentrations.
    • Seminal samples were analyzed from normospermic individuals, infertile patients with specific conditions (vas deferens agenesis, obstruction, vasectomy, epididymal blockage), and hypogonadal patients.

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  • Control groups included healthy individuals.

    • Main Results:

    • Significantly high seminal zinc levels were observed in patients with bilateral agenesis of the vas deferens.
    • Lower zinc levels were found in patients with unilateral obstruction and those who underwent vasectomy or had epididymal blockage.
    • Seminal zinc levels were reduced in hypogonadal patients, suggesting prostate secretion as the primary source.
    • No correlation was found between seminal zinc levels, sperm count, motility, or varicocele.

    Conclusions:

    • Seminal zinc levels are a reliable indicator of seminal pathway patency.
    • The prostate gland is the main contributor of zinc to seminal fluid.
    • Measurement of seminal zinc can aid in diagnosing conditions affecting the vas deferens and epididymis, but not prostatitis or sperm parameters.