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Study · Measured the body's own peptide · 2015

6 results

Plasma oxytocin and personality traits in psychiatric outpatients.

Bendix M, Uvnäs-Moberg K, Petersson M, Gustavsson P, Svanborg P, Åsberg M, Jokinen J

Psychoneuroendocrinology13 Apr 2015Cited by 17 (Europe PMC)

PMID25910979 (opens in a new tab)DOI10.1016/j.psyneuen.2015.04.003 (opens in a new tab)PepBankPUB-25910979
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 study6

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

Natural levels measured6

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 medication-free psychiatric outpatients, plasma oxytocin levels were stable over one month.

    In plain wordsIn psychiatric outpatients, the body's own oxytocin in blood stayed stable over a month.

    Peptide
    Oxytocin
    Outcome
    No significant changeStability of plasma oxytocin over one month
    Study

    n = 101

    Outcome group
    Hormone levels · Endocrine and hormones

    Source sentences

    Summary
    Plasma oxytocin levels were stable over time
    1 context sentence
    Summary · context
    We assessed the relationship between personality traits and plasma oxytocin levels in a population of 101 medication-free psychiatric outpatients (men = 37, women = 64).

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

  2. 02HumanEndogenous levelObservational studyOther

    In medication-free psychiatric outpatients, plasma oxytocin did not differ between patients with and without personality disorders.

    In plain wordsIn psychiatric outpatients, the body's own oxytocin in blood was similar with or without a personality disorder.

    Peptide
    Oxytocin
    Outcome
    No significant changePlasma oxytocin by personality disorder status
    Study

    n = 101

    Outcome group
    Hormone levels · Endocrine and hormones

    Source sentences

    Summary
    did not differ between patients with or without personality disorders
    1 context sentence
    Summary · context
    We assessed the relationship between personality traits and plasma oxytocin levels in a population of 101 medication-free psychiatric outpatients (men = 37, women = 64).

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

  3. 03HumanEndogenous levelObservational studyOther

    In medication-free psychiatric outpatients, plasma oxytocin was not related to severity of depressive or anxiety symptoms.

    In plain wordsIn psychiatric outpatients, the body's own oxytocin in blood was not linked to how severe depression or anxiety was.

    Peptide
    Oxytocin
    Outcome
    No significant changePlasma oxytocin and severity of depressive or anxiety symptoms
    Study

    n = 101

    Outcome group
    Hormone levels · Endocrine and hormones

    Source sentences

    Summary
    nor were they related to severity of depressive or anxiety symptoms.
    1 context sentence
    Summary · context
    We assessed the relationship between personality traits and plasma oxytocin levels in a population of 101 medication-free psychiatric outpatients (men = 37, women = 64).

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

  4. 04HumanEndogenous levelObservational studyOther

    In medication-free psychiatric outpatients, the KSP factors Impulsiveness and Negative Emotionality were significant independent predictors of plasma oxytocin.

    In plain wordsIn psychiatric outpatients, impulsiveness and negative emotionality were linked to the body's own oxytocin level in blood.

    Peptide
    Oxytocin
    Outcome
    Direction not reportedPersonality factors predicting plasma oxytocin
    Study

    n = 101

    Outcome group
    Hormone levels · Endocrine and hormones

    Source sentences

    Summary
    The KSP factors Impulsiveness and Negative Emotionality were significant independent predictors of plasma oxytocin.
    1 context sentence
    Summary · context
    We assessed the relationship between personality traits and plasma oxytocin levels in a population of 101 medication-free psychiatric outpatients (men = 37, women = 64).

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

  5. 05HumanEndogenous levelObservational studyOther

    In medication-free psychiatric outpatients, baseline plasma oxytocin correlated positively with the KSP subscales monotony avoidance and psychic anxiety.

    In plain wordsIn psychiatric outpatients, higher body's own oxytocin in blood was linked to more monotony avoidance and psychic anxiety.

    Peptide
    Oxytocin
    Outcome
    IncreaseBaseline plasma oxytocin and KSP subscales
    Study

    n = 101

    Outcome group
    Hormone levels · Endocrine and hormones

    Source sentences

    Summary
    A subscale analysis of these personality factors showed significant positive correlations between baseline plasma oxytocin and the KSP subscales monotony avoidance and psychic anxiety.
    1 context sentence
    Summary · context
    We assessed the relationship between personality traits and plasma oxytocin levels in a population of 101 medication-free psychiatric outpatients (men = 37, women = 64).

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

  6. 06HumanEndogenous levelObservational studyOther

    In medication-free male psychiatric outpatients, the association between the KSP factor Impulsiveness and plasma oxytocin seen at baseline was also seen one month later.

    In plain wordsIn male psychiatric outpatients, the link between impulsiveness and the body's own oxytocin in blood was still there a month later.

    Peptide
    Oxytocin
    Outcome
    Direction not reportedImpulsiveness and plasma oxytocin in men at one month
    Study

    n = 37

    Outcome group
    Hormone levels · Endocrine and hormones

    Source sentences

    Summary
    The significant association between the KSP factor Impulsiveness and oxytocin levels observed at baseline was observed also one month later in men.
    1 context sentence
    Summary · context
    We assessed the relationship between personality traits and plasma oxytocin levels in a population of 101 medication-free psychiatric outpatients (men = 37, women = 64).

    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, 02:49 UTC

    First added · source update from Europe PMC

Subjects

Terms as the source lists them.

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