Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Prolactin secretion after hypophysial stalk transection in pigs

L L Anderson, J G Berardinelli, P V Malven

    Endocrinology
    |August 1, 1982
    PubMed
    Summary
    This summary is machine-generated.

    Related Concept Videos

    You might also read

    Related Articles

    Articles linked to this work by shared authors, journal, and citation graph.

    Sort by
    Same author

    The Solar Wind Electron (SWE) Instrument for the Interstellar Mapping and Acceleration Probe Mission.

    Space science reviews·2026
    Same author

    Effects of zinc source and dietary concentration on serum zinc concentrations, growth performance, wool and reproductive characteristics in developing rams.

    Animal : an international journal of animal bioscience·2019
    Same author

    Photoelectrons facilitate autoradiography for <sup>192</sup> Ir remote afterloaders.

    Medical physics·2018
    Same author

    Contributions of the maternal uterine environment and piglet genotype on weaning survivability potential: II. Piglet growth, lactation performance, milk composition, and piglet blood profiles during lactation following reciprocal embryo transfers between Meishan and White crossbred gilts.

    Journal of animal science·2015
    Same author

    Temporal concentrations of cortisol and LH in virgin ewes acutely exposed to rams during the transition into the breeding season.

    Animal reproduction science·2015
    Same author

    Preliminary evidence for the features of non-reducible discogenic low back pain: survey of an international physiotherapy expert panel with the Delphi technique.

    Physiotherapy·2013

    The hypothalamus inhibits prolactin (PRL) secretion in pigs. Transecting the hypophysial stalk prevented this inhibition, leading to elevated PRL levels post-surgery.

    Area of Science:

    • Endocrinology
    • Neuroscience
    • Reproductive Biology

    Background:

    • Prolactin (PRL) secretion is tightly regulated by the hypothalamus.
    • Understanding hypothalamic control of PRL is crucial for reproductive health.

    Purpose of the Study:

    • To investigate the role of the hypothalamus in regulating PRL secretion in pigs.
    • To determine if the hypothalamus exerts an inhibitory influence on basal PRL release.

    Main Methods:

    • Surgical transection of the hypophysial stalk in Yorkshire gilts.
    • Sham operations as controls.
    • Measurement of serum PRL concentrations via anterior vena cava cannulation before, during, and after surgery.

    Main Results:

    Related Experiment Videos

  • PRL levels increased during anesthesia in all gilts.
  • PRL remained significantly elevated in gilts with hypophysial stalk transection compared to sham-operated controls for up to 190 hours post-surgery.
  • Basal PRL secretion was markedly higher after stalk transection.

    • Conclusions:

    • The hypothalamus exerts an inhibitory control over basal PRL secretion in pigs.
    • Disruption of the hypophysial stalk removes this hypothalamic inhibition, leading to sustained PRL elevation.