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Study · Measured the body's own peptide · 2007

1 result

Individual differences in emotional expressivity predict oxytocin responses to cortisol administration: relevance to breast cancer?

Tops M, van Peer JM, Korf J

Biological psychology7 Jan 2007Cited by 28 (Europe PMC)

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. 01HumanEndogenous levelRandomized controlled trialOther

    In healthy women, oral cortisol versus placebo increased plasma oxytocin levels in proportion to the Emotion Expression-out score.

    In plain wordsIn healthy women, cortisol raised the body's own oxytocin levels more in women with higher emotional expression scores, compared with placebo.

    Peptide
    Oxytocin
    Outcome
    IncreasePlasma oxytocin after cortisol, by emotional expression score
    Study

    n: not reported in source

    Comparator
    Placebo
    Outcome group
    Endogenous peptide levels · Endocrine and hormones

    Source sentences

    Summary
    We found an interaction between treatment condition and Emotional Expression-out scores: after cortisol treatment, oxytocin levels increased proportional to Emotion Expression-out score.
    1 context sentence
    Summary · context
    Healthy female subjects were treated with placebo or 35mg of cortisol orally in a double-blind within-subject study.

    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, 01:30 UTC

    Study results updated

  2. Version 1

    9 Oct 2026, 02:50 UTC

    First added · source update from Europe PMC

Subjects

Terms as the source lists them.

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