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Study · Measured the body's own peptide · 1986

2 results

Isolation and sequence analysis of oxytocin from the sheep corpus luteum.

Watkins WB, Choy VJ, Chaiken IM, Spiess J

Neuropeptides1 Jan 1986Cited by 2 (Europe PMC)

PMID3951682 (opens in a new tab)DOI10.1016/0143-4179(86)90083-1 (opens in a new tab)PepBankPUB-03951682
Publisher pagePubMedAsk about this study
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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 study2

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

Natural levels measured2

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

    A species with oxytocin-like immunoreactivity purified from the ovine corpus luteum was identical to hypothalamic oxytocin by Edman degradation and reverse-phase HPLC.

    In plain wordsIn sheep tissue, the body's own oxytocin in the corpus luteum was identical to the oxytocin made in the brain.

    Peptide
    Oxytocin
    Outcome
    Not applicableIdentity of oxytocin-like species in the sheep corpus luteum
    Study

    sheepn: not reported in source

    Ovine corpus luteum extract
    Outcome group
    Endogenous peptide levels · Reproductive and sexual health

    Source sentences

    Summary
    We have now purified and completely characterized the OT-like species from ovine CL and established by Edman degradation and comparative reverse-phase HPLC its identity with hypothalamic oxytocin.
    1 context sentence
    Summary · context
    This study represents the first identification by sequence analysis of oxytocin outside the central nervous system.

    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 ovine corpus luteum, the characterized oxytocin was the only peptide with oxytocin-like immunoreactivity by radioimmunoassay.

    In plain wordsIn sheep tissue, the body's own oxytocin was the only peptide that gave an oxytocin-like signal in the assay.

    Peptide
    Oxytocin
    Outcome
    Not applicableOxytocin as the only peptide with oxytocin-like immunoreactivity
    Study

    sheepn: not reported in source

    Ovine corpus luteum extract
    Outcome group
    Endogenous peptide levels · Reproductive and sexual health

    Source sentences

    Summary
    On the basis of radioimmunoassay, the characterized oxytocin was the only peptide possessing OT-like immunoreactivity.

    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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