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Study · Measured the body's own peptide · 1987

1 result

Cyclic variations in spinal cord levels of oxytocin and vasopressin during the stages of the rat estrous cycle.

Miaskowski C, Ong GL, Haldar J

Endocrinology1 Apr 1987Cited by 10 (Europe PMC)

PMID3830065 (opens in a new tab)DOI10.1210/endo-120-4-1685 (opens in a new tab)PepBankPUB-03830065
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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 study1

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

Natural levels measured1

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. 01AnimalEndogenous levelAnimal study (in vivo)Other

    In female rats, the content of the body's own oxytocin in the spinal cord varied across the estrous cycle, with maximal levels in diestrus.

    In plain wordsIn female rats, the body's own oxytocin in the spinal cord rose and fell with the estrous cycle and was highest in diestrus.

    Peptide
    Oxytocin
    Outcome
    MixedSpinal cord oxytocin content across the estrous cycle
    Study

    ratn: not reported in source

    Female Long Evans rats, spinal cord tissue
    Outcome group
    Sex hormones and fertility · Endocrine and hormones

    Source sentences

    Summary
    A cyclic variation in spinal cord OT and VP was present, with maximal levels occurring in diestrus, a time in the estrous cycle when LH and estradiol levels are lowest.
    2 context sentences
    Summary · context
    The stage of the estrous cycle was determined by vaginal smears in female Long Evans rats.
    Summary · context
    OT and VP content were determined by RIA.

    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, 02:53 UTC

    First added · source update from Europe PMC

Subjects

Terms as the source lists them.

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