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Study · Measured the body's own peptide · 2024

2 results

Attachment-like behavioral expressions to humans in puppies are related to oxytocin and cortisol: A comparative study of Akitas and Labrador Retrievers.

Nagasawa M, Tomori S, Mogi K, Kikusui T

Peptides16 Apr 2024Cited by 5 (Europe PMC)

PMID38636810 (opens in a new tab)DOI10.1016/j.peptides.2024.171224 (opens in a new tab)PepBankPUB-38636810
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. 01AnimalEndogenous levelAnimal study (in vivo)Other

    In dogs, urinary oxytocin concentrations did not differ significantly between Akitas and Labrador Retrievers.

    In plain wordsIn dogs, the body's own oxytocin in urine did not differ between Akitas and Labrador Retrievers.

    Peptide
    Oxytocin
    Outcome
    No significant changeUrinary oxytocin concentration, breed difference
    Study

    dogn: not reported in source

    Akita and Labrador Retriever puppies
    Comparator
    Labrador Retrievers versus Akitas
    Outcome group
    Endogenous peptide levels · Endocrine and hormones

    Source sentences

    Summary
    oxytocin concentrations did not differ significantly, which suggests a complex interplay between factors influencing the domestication process and the formation of attachment behaviors.
    1 context sentence
    Summary · context
    This study investigated the relationship between urinary hormone concentrations and attachment-related behaviors in two dog breeds, the Akitas and Labrador Retrievers, to elucidate the hormonal and behavioral mechanisms underlying domestication and interspecies attachment to humans.

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

  2. 02AnimalEndogenous levelAnimal study (in vivo)Other

    In Labrador Retrievers, urinary oxytocin concentrations were associated with attachment-like behaviors.

    In plain wordsIn Labrador Retrievers, higher natural oxytocin levels were linked to more attachment-like behaviour.

    Peptide
    Oxytocin
    Outcome
    Not applicableUrinary oxytocin and attachment-like behaviors
    Study

    dogn: not reported in source

    Akita and Labrador Retriever puppies
    Outcome group
    Endogenous peptide levels · Endocrine and hormones

    Source sentences

    Summary
    where oxytocin concentrations were associated with attachment-like behaviors
    1 context sentence
    Summary · context
    This study investigated the relationship between urinary hormone concentrations and attachment-related behaviors in two dog breeds, the Akitas and Labrador Retrievers, to elucidate the hormonal and behavioral mechanisms underlying domestication and interspecies attachment to humans.

    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, 00:50 UTC

    Study results updated

  2. Version 1

    9 Oct 2026, 02:48 UTC

    First added · source update from Europe PMC

Subjects

Terms as the source lists them.

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