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Study · Measured the body's own peptide · 2026

1 result

Within-Session Reductions in Negative Mood During a 4-Week Upright Sitting Practice in Japanese Young Adults: An Exploratory Observational Study.

Usuda T, Yamaguchi T, Hu A, Kawakami Z, Karasawa S, Yamamoto M, Kobayashi H

Neuro endocrinology letters1 Apr 2026

PMID42165795 (opens in a new tab)PepBankPUB-42165795
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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. 01HumanEndogenous levelObservational studyOther

    In healthy young adults, salivary biomarkers including the body's own oxytocin showed no consistent or significant pattern during a 4-week upright sitting practice.

    In plain wordsIn healthy young adults, natural oxytocin and other saliva markers showed no consistent change during four weeks of upright sitting practice.

    Peptide
    Oxytocin
    Outcome
    No significant changeSalivary oxytocin during 4-week upright sitting practice
    Study

    n = 18

    Outcome group
    Endogenous peptide levels · Endocrine and hormones

    Source sentences

    Summary
    HRV indices and salivary biomarkers did not show consistent or statistically significant patterns.
    2 context sentences
    Summary · context
    Autonomic activity was indexed by heart rate (HR) and heart rate variability (HRV), and salivary cortisol, chromogranin A, oxytocin, and α-amylase were measured.
    Summary · context
    Eighteen healthy university students (10 males and 8 females) completed a 4-week upright sitting posture practice.

    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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