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Study · Measured the body's own peptide · 2011

6 results

The influence of depressive symptomatology and perceived stress on plasma and salivary oxytocin before, during and after a support enhancement intervention.

Holt-Lunstad J, Birmingham W, Light KC

Psychoneuroendocrinology19 Apr 2011Cited by 79 (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 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 levelRandomized controlled trialOther

    In married adults high in depressive symptoms, salivary oxytocin stayed elevated in the control group but not in the warm touch intervention group.

    In plain wordsIn adults with more depressive symptoms, the body's own oxytocin in saliva stayed high with behavior monitoring but not after the warm touch intervention.

    Peptide
    Oxytocin
    Outcome
    DecreaseSalivary oxytocin during the warm touch intervention in subjects high in depressive symptoms
    Study

    n = 68

    Comparator
    Behavior monitoring control group
    Outcome group
    Anxiety and mood · Endocrine and hormones

    Source sentences

    Summary
    During the intervention, salivary OT remained elevated among subjects high in depressive symptomatology in the control group but not the intervention group.
    1 context sentence
    Summary · context
    In this study, 34 healthy married couples (n=68) ages 20-39 provided self reports of depressive symptoms (CESD) and stress (Perceived Stress Scale) before being randomly assigned to a 4-week intervention study enhancing partner support through "warm touch", or to a "behavior monitoring" control group.

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

  2. 02HumanEndogenous levelRandomized controlled trialOther

    At post-intervention, plasma oxytocin levels no longer differed between subjects with and without depressive symptomatology.

    In plain wordsAfter the intervention, the body's own oxytocin in blood no longer differed between people with and without depressive symptoms.

    Peptide
    Oxytocin
    Outcome
    No significant changePlasma oxytocin after intervention by depressive symptoms
    Study

    n = 68

    Outcome group
    Anxiety and mood · Endocrine and hormones

    Source sentences

    Summary
    At post-intervention, plasma OT levels in subjects with vs. without depressive symptomatology no longer differed.
    1 context sentence
    Summary · context
    In this study, 34 healthy married couples (n=68) ages 20-39 provided self reports of depressive symptoms (CESD) and stress (Perceived Stress Scale) before being randomly assigned to a 4-week intervention study enhancing partner support through "warm touch", or to a "behavior monitoring" control group.

    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 married adults, higher depressive symptom scores were linked to higher plasma oxytocin levels before the intervention.

    In plain wordsIn married adults, more depressive symptoms were linked to higher levels of the body's own oxytocin in blood.

    Peptide
    Oxytocin
    Outcome
    IncreasePlasma oxytocin before intervention by depressive symptoms
    Study

    n = 68

    Outcome group
    Anxiety and mood · Endocrine and hormones

    Source sentences

    Summary
    subjects with higher depressive symptoms scores had higher plasma OT levels at pre-intervention
    1 context sentence
    Summary · context
    In this study, 34 healthy married couples (n=68) ages 20-39 provided self reports of depressive symptoms (CESD) and stress (Perceived Stress Scale) before being randomly assigned to a 4-week intervention study enhancing partner support through "warm touch", or to a "behavior monitoring" control group.

    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 married adults, higher depressive symptom scores were linked to higher salivary oxytocin levels at home during week 1.

    In plain wordsIn married adults, more depressive symptoms were linked to higher levels of the body's own oxytocin in saliva.

    Peptide
    Oxytocin
    Outcome
    IncreaseHome salivary oxytocin in week 1 by depressive symptoms
    Study

    n = 68

    Outcome group
    Anxiety and mood · Endocrine and hormones

    Source sentences

    Summary
    and higher salivary OT levels at home during week 1 (p<.05).
    1 context sentence
    Summary · context
    In this study, 34 healthy married couples (n=68) ages 20-39 provided self reports of depressive symptoms (CESD) and stress (Perceived Stress Scale) before being randomly assigned to a 4-week intervention study enhancing partner support through "warm touch", or to a "behavior monitoring" control group.

    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 married adults, the link between depressive symptoms and plasma oxytocin was moderated by gender, with the highest levels among women with high depressive symptoms.

    In plain wordsThe link between depressive symptoms and the body's own oxytocin was strongest in women.

    Peptide
    Oxytocin
    Outcome
    MixedPlasma oxytocin by depressive symptoms and gender
    Study

    n = 68

    Outcome group
    Anxiety and mood · Endocrine and hormones

    Source sentences

    Summary
    Plasma OT results were moderated by gender such that plasma OT levels were highest among females high in depressive symptomology.
    1 context sentence
    Summary · context
    In this study, 34 healthy married couples (n=68) ages 20-39 provided self reports of depressive symptoms (CESD) and stress (Perceived Stress Scale) before being randomly assigned to a 4-week intervention study enhancing partner support through "warm touch", or to a "behavior monitoring" control group.

    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 married adults, higher perceived stress was linked to higher plasma oxytocin and mediated part of the depression link.

    In plain wordsIn married adults, more perceived stress was linked to higher levels of the body's own oxytocin in blood.

    Peptide
    Oxytocin
    Outcome
    IncreasePlasma oxytocin by perceived stress
    Study

    n = 68

    Outcome group
    Anxiety and mood · Endocrine and hormones

    Source sentences

    Summary
    Higher perceived stress was also linked to both higher depressive symptomatology (r=+65, p<.0001) and plasma OT (p< .05) and a significant mediator.
    1 context sentence
    Summary · context
    In this study, 34 healthy married couples (n=68) ages 20-39 provided self reports of depressive symptoms (CESD) and stress (Perceived Stress Scale) before being randomly assigned to a 4-week intervention study enhancing partner support through "warm touch", or to a "behavior monitoring" control group.

    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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