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Study · Measured the body's own peptide · 1999

1 result

Low doses of ipsapirone increase growth hormone but not oxytocin secretion in normal male and female subjects.

Newman ME, Li Q, Gelfin Y, Van de Kar LD, Lerer B

Psychopharmacology1 Jul 1999Cited by 4 (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 trialMechanism

    In normal male and female subjects, ipsapirone did not stimulate secretion of the body's own oxytocin compared with placebo in any group.

    In plain wordsIn healthy adults, ipsapirone did not raise the body's own oxytocin compared with placebo in any group.

    Peptide
    Oxytocin
    Outcome
    No significant changeOxytocin secretion after ipsapirone
    Study

    n = 30

    Comparator
    Placebo
    Outcome group
    Receptor activity and mechanism · Endocrine and hormones

    Source sentences

    Summary
    Oxytocin secretion was not stimulated by ipsapirone compared to placebo in any of the groups.
    1 context sentence
    Summary · context
    Ipsapirone (0.3 mg/kg body weight), or placebo was administered to 30 normal subjects (14 males, 19-74 years and 16 females, 22-69 years) using a randomized, double blind design.

    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, 02:51 UTC

    First added · source update from Europe PMC

Subjects

Terms as the source lists them.

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