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The varicocele: a critical analysis of experimental and clinical data

A T Cockett, A Al-Juburi, V Altebarmakian

    Transactions of the American Association of Genito-Urinary Surgeons
    |January 1, 1979
    PubMed

    Insights

    Serotonin negatively impacts sperm production and hormone synthesis through testicular effects. Elevated serotonin in varicocele patients may cause infertility, warranting further investigation.

    Area of Science:

    • Reproductive Endocrinology
    • Urology
    • Andrology

    Background:

    • Serotonin is implicated in negatively affecting spermatogenesis and androgen synthesis.
    • Serotonin acts on the testicle via vasoconstriction and direct metabolic/endocrine alterations.
    • Experimental varicocele models in animals mirror human infertility conditions.

    Purpose of the Study:

    • To investigate the role of serotonin in varicocele-associated infertility.
    • To compare serotonin levels in spermatic vein and peripheral blood in varicocele patients.
    • To explore serotonin's impact on semen parameters.

    Main Methods:

    • Induction of experimental varicocele in animal models.
    • Analysis of seminal parameters following varicocele induction.
    • Measurement of serotonin levels in spermatic vein and peripheral blood.
    • Ongoing investigation in patients undergoing inguinal surgery.

    Main Results:

    • Varicocele induction decreased all seminal parameters except volume in animal models.
    • Elevated serotonin levels were observed in the spermatic vein plasma of some varicocele patients.
    • Serotonin is a potential inciting factor for subfertile semen parameters in infertile patients with varicocele.

    Conclusions:

    • Serotonin may be a key factor contributing to subfertility in patients with varicocele.
    • Further research is needed to clarify the relationship between peripheral and spermatic vein serotonin levels.
    • Comparative studies in patients with and without varicocele, and those undergoing other inguinal surgeries, are ongoing.

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