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Seminal plasma characteristics during frequent ejaculation.

H Rui, P Gerhardt, B Mevåg

    International Journal of Andrology
    |April 1, 1984
    PubMed
    Summary
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    Frequent ejaculation did not alter most seminal fluid components. However, seminal spermine (a prostatic fluid marker) increased with high ejaculation frequency, suggesting stimulated prostatic cell activity and potential links to growth and protein synthesis.

    Area of Science:

    • Reproductive Biology
    • Andrology
    • Biochemistry

    Background:

    • Seminal fluid composition is crucial for male fertility.
    • Understanding how ejaculation frequency affects seminal parameters is important for reproductive health.
    • Prostatic secretions contribute significantly to seminal fluid composition.

    Purpose of the Study:

    • To investigate the impact of frequent ejaculation on seminal fluid parameters.
    • To assess changes in citric acid, zinc, acid phosphatase, spermine, fructose, and protein profiles.
    • To explore the relationship between seminal spermine levels and prostatic activity.

    Main Methods:

    • Seven young men provided semen samples every 8 hours for 2 days.
    • Measured concentrations of citric acid, zinc, acid phosphatase, spermine, fructose, and protein.

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  • Analyzed protein profiles using 2-dimensional electrophoresis.

    • Main Results:

    • Semen volume significantly decreased with frequent ejaculation.
    • Concentrations of most seminal parameters remained stable.
    • Seminal spermine levels increased significantly during high ejaculation frequency.
    • Protein profiles showed no significant changes.

    Conclusions:

    • Frequent ejaculation does not significantly alter most seminal fluid components.
    • Increased seminal spermine suggests stimulated prostatic cell activity.
    • Seminal spermine may be a sensitive indicator of prostatic function and potentially linked to growth and protein synthesis.