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Related Experiment Videos

The spinal monoaminergic systems relating to ejaculation. II. Ejaculation and serotonin.

Y Kimura, A Miyamoto, S Urano

    Andrologia
    |May 1, 1983
    PubMed
    Summary

    The spinal serotonergic system inhibits ejaculation in dogs. Ejaculation occurs when spinal dopaminergic and serotonergic systems reach a balance, as shown by Ro 4-4602 and L-5-hydroxytryptophan studies.

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    Area of Science:

    • Neuroscience
    • Animal Behavior
    • Pharmacology

    Background:

    • The neurochemical control of ejaculation is complex.
    • Spinal monoamine systems play a role in regulating sexual reflexes.

    Purpose of the Study:

    • To investigate the role of the serotonergic system in ejaculation.
    • To examine the interaction between dopaminergic and serotonergic systems in the spinal cord during ejaculation.

    Main Methods:

    • Administered Ro 4-4602 and L-5-hydroxytryptophan to dogs.
    • Manually induced ejaculation in dogs.
    • Measured spinal monoamine levels.

    Main Results:

    • Ro 4-4602 and L-5-hydroxytryptophan affected ejaculation.

    Related Experiment Videos

  • The spinal serotonergic system was identified as an inhibitory mechanism for ejaculation.
  • Evidence suggests ejaculation results from a balance between spinal dopaminergic and serotonergic activity.

    • Conclusions:

    • The spinal serotonergic system is a key inhibitory regulator of ejaculation.
    • Ejaculation is modulated by the interplay between spinal dopaminergic and serotonergic pathways.