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Related Experiment Videos

[Intraspinal organ in man].

P A Motavkin, A P Bakhtinov

    Arkhiv Anatomii, Gistologii I Embriologii
    |October 1, 1990
    PubMed
    Summary

    A newly described ependymal glandular organ in the spinal cord shows peak activity during human reproductive system function. This organ produces a peptide with cardio- and vasotonic properties, suggesting a role in bodily regulation.

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    Area of Science:

    • Neuroscience
    • Endocrinology
    • Reproductive Biology

    Background:

    • The ependymal zone of the spinal cord harbors an uncharacterized glandular organ.
    • The function of spinal cord ependymal glands in relation to systemic physiology is poorly understood.

    Purpose of the Study:

    • To describe the ependymal glandular organ in the LI-SIII spinal cord level.
    • To investigate its developmental stages, cellular composition, vascularization, and innervation.
    • To identify bioactive substances produced by the organ and elucidate its physiological role.

    Main Methods:

    • Histological and immunochemical analyses were employed.
    • The study examined developmental stages, cell types, blood supply, and neural connections.
    • Peptide identification utilized immunochemical techniques.

    Main Results:

    • An ependymal glandular organ was identified in the spinal cord's ependymal zone (LI-SIII).
    • Peak secretory activity correlates with the reproductive system's functional period.
    • A peptide with cardio- and vasotonic properties was immunochemically identified in secretory cells.

    Conclusions:

    • The spinal ependymal glandular organ exhibits cyclical activity linked to reproductive function.
    • The identified peptide suggests a role in cardiovascular and vascular regulation.
    • This organ may contribute to the neuroendocrine regulation of the organism, similar to brain ependymal glands.

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