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Study · Measured the body's own peptide · 1989

3 results

Comparative immunocytochemical study of the catecholaminergic and peptidergic afferent innervation to the dorsal vagal complex in rat and guinea pig.

Siaud P, Denoroy L, Assenmacher I, Alonso G

The Journal of comparative neurology1 Dec 1989Cited by 22 (Europe PMC)

PMID2574199 (opens in a new tab)DOI10.1002/cne.902900302 (opens in a new tab)PepBankPUB-02574199
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Summary

The text of this summary is not shown here, because the article license does not allow reuse. Read it at the source (opens in a new tab)

Text rights: Publisher copyright. Results still quote short attributed sentences.

Results from this study3

No result from this study comes from a test of the peptide.

Natural levels measured3

These results measure the body's own peptide. Nobody was given the peptide. They are not evidence about taking it. They are left out of key results, evidence counts and charts.

  1. 01LabEndogenous levelEx vivo tissueOther

    In the rat medulla, the density of oxytocin-immunoreactive fibers was far lower in the dorsal motor nucleus of the vagus than in the dorsal regions of the nucleus of the tractus solitarius.

    In plain wordsIn rat brainstem tissue, the body's own oxytocin fibers were much sparser in one vagal nucleus than in a neighbouring region.

    Peptide
    Oxytocin
    Outcome
    Not applicableDensity of oxytocin-immunoreactive fibers in the rat dorsal motor nucleus of the vagus
    Study

    ratn: not reported in source

    Brainstem tissue sections
    Outcome group
    Endogenous peptide levels · Nervous system and cognition

    Source sentences

    Summary
    On the other hand, the density of both oxytocin- and corticotropin-immunoreactive fibers appeared far lower in this nucleus than in the dorsal regions of the nucleus of the tractus solitarius, where they formed asymmetric synapses with small dendrites.
    1 context sentence
    Summary · context
    Light and electron microscopic immunocytochemistry was used to study the fine structural organization of the catecholaminergic and hypothalamic peptidergic innervation of the dorsal vagal complex of the medulla oblongata in the rat and guinea pig, the latter of which is known to lack central adrenergic neurons.

    This result measures the body's own Oxytocin. Nobody was given the peptide. It is not evidence about taking it.

  2. 02LabEndogenous levelEx vivo tissueOther

    In the rat dorsal medulla, oxytocin-reactive fibers were in close contact with adrenergic neurons.

    In plain wordsIn rat brainstem tissue, the body's own oxytocin fibers lay close to adrenergic nerve cells.

    Peptide
    Oxytocin
    Outcome
    Not applicableContact between oxytocin-reactive fibers and adrenergic neurons
    Study

    ratn: not reported in source

    Brainstem tissue sections
    Outcome group
    Endogenous peptide levels · Nervous system and cognition

    Source sentences

    Summary
    In tissue treated for the dual labeling of two neuronal antigens, oxytocin- or corticotropin-reactive fibers were in close contact with adrenergic neurons in this dorsal medullary region.
    1 context sentence
    Summary · context
    Light and electron microscopic immunocytochemistry was used to study the fine structural organization of the catecholaminergic and hypothalamic peptidergic innervation of the dorsal vagal complex of the medulla oblongata in the rat and guinea pig, the latter of which is known to lack central adrenergic neurons.

    This result measures the body's own Oxytocin. Nobody was given the peptide. It is not evidence about taking it.

  3. 03LabEndogenous levelEx vivo tissueOther

    In the guinea pig, unlike the rat, the dorsal motor nucleus of the vagus contained large amounts of oxytocin-reactive fibers that formed many symmetric synapses with perikarya and dendrites.

    In plain wordsIn guinea pig brainstem tissue, unlike in rats, the vagal nucleus held many of the body's own oxytocin fibers.

    Peptide
    Oxytocin
    Outcome
    Not applicableOxytocin-reactive fibers in the guinea pig dorsal motor nucleus of the vagus
    Study

    guinea pign: not reported in source

    Brainstem tissue sections
    Outcome group
    Endogenous peptide levels · Nervous system and cognition

    Source sentences

    Summary
    In the guinea pig, unlike the rat, the dorsal motor nucleus of the vagus contained large amounts of oxytocin- and corticotropin-reactive fibers, which formed many symmetric synapses with perikarya and dendrites.
    1 context sentence
    Summary · context
    Light and electron microscopic immunocytochemistry was used to study the fine structural organization of the catecholaminergic and hypothalamic peptidergic innervation of the dorsal vagal complex of the medulla oblongata in the rat and guinea pig, the latter of which is known to lack central adrenergic neurons.

    This result measures the body's own Oxytocin. Nobody was given the peptide. It is not evidence about taking it.

AI wrote and checked these results. AI can make mistakes, so check important results against the source.

Version history

PepBank keeps every version of the data on this study. Status changes from Retraction Watch, Europe PMC and Crossref are listed with their source.

  1. Version 2Current

    11 Oct 2026, 20:03 UTC

    Study results updated

  2. Version 1

    9 Oct 2026, 02:52 UTC

    First added · source update from Europe PMC

Subjects

Terms as the source lists them.

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