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Study · Measured the body's own peptide · 1986

13 results

Human ovarian oxytocin: its source and relationship to steroid hormones.

Dawood MY, Khan-Dawood FS

American journal of obstetrics and gynecology1 Apr 1986Cited by 29 (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 study13

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

Natural levels measured12

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 human ovaries, the body's own oxytocin concentration was higher in corpus luteum than in corpus albicans.

    In plain wordsIn human ovaries, the body's own oxytocin was higher in the corpus luteum than in corpus albicans.

    Peptide
    Oxytocin
    Outcome
    IncreaseOxytocin in corpus luteum versus corpus albicans
    Study

    n: not reported in source

    Comparator
    Corpus albicans
    Outcome group
    Sex hormones and fertility · Reproductive and sexual health

    Source sentences

    Summary
    Corpus luteum had significantly higher oxytocin, estrone, estradiol, and progesterone concentrations than corpus albicans and ovarian stroma (p = less than 0.01 to less than 0.001).
    1 context sentence
    Summary · context
    To determine the site of oxytocin in human ovaries and its relationship with ovarian steroids, oxytocin and steroid hormones were measured in ovarian tissues, ovarian vein, and peripheral blood.

    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 human corpus luteum, the body's own oxytocin concentration correlated significantly with estrone concentration.

    In plain wordsIn human ovaries, the body's own oxytocin levels in the corpus luteum were linked to estrone levels.

    Peptide
    Oxytocin
    Outcome
    Not applicableCorrelation of corpus luteum oxytocin with estrone
    Study

    n: not reported in source

    Outcome group
    Sex hormones and fertility · Reproductive and sexual health

    Source sentences

    Summary
    Oxytocin concentrations in corpus luteum correlated significantly with estrone, estradiol, and progesterone.
    1 context sentence
    Summary · context
    To determine the site of oxytocin in human ovaries and its relationship with ovarian steroids, oxytocin and steroid hormones were measured in ovarian tissues, ovarian vein, and peripheral blood.

    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 human corpus luteum, the body's own oxytocin concentration was higher in the midluteal than early luteal phase.

    In plain wordsIn human ovaries, the body's own oxytocin in the corpus luteum was higher in the midluteal than early luteal phase.

    Peptide
    Oxytocin
    Outcome
    IncreaseCorpus luteum oxytocin, early versus midluteal phase
    Study

    n: not reported in source

    Comparator
    Early luteal phase
    Outcome group
    Sex hormones and fertility · Reproductive and sexual health

    Measurements

    Oxytocin, early luteal phase
    14 ng/gm wet weight
    corpus luteum
    Oxytocin, midluteal phase
    30.8 ng/gm wet weight
    corpus luteum

    Source sentences

    Summary
    Oxytocin in corpus luteum increased from 14.0 +/- 1.8 ng/gm of wet weight in early to 30.8 +/- 0.9 ng/gm in midluteal phases (p = less than 0.001).
    1 context sentence
    Summary · context
    To determine the site of oxytocin in human ovaries and its relationship with ovarian steroids, oxytocin and steroid hormones were measured in ovarian tissues, ovarian vein, and peripheral blood.

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

  4. 04HumanEndogenous levelObservational studyOther

    Plasma oxytocin of the body's own origin was higher in the ovarian vein draining the corpus luteum than in the ovarian vein without corpus luteum.

    In plain wordsThe body's own oxytocin in blood was higher in the ovarian vein that drains the corpus luteum than in a vein without one.

    Peptide
    Oxytocin
    Outcome
    IncreasePlasma oxytocin in ovarian vein draining corpus luteum versus vein without corpus luteum
    Study

    n: not reported in source

    Comparator
    Ovarian vein without corpus luteum
    Outcome group
    Sex hormones and fertility · Reproductive and sexual health

    Measurements

    Plasma oxytocin
    11.8 pg/ml
    ovarian vein draining corpus luteum
    Plasma oxytocin
    2.1 pg/ml
    ovarian vein without corpus luteum

    Source sentences

    Summary
    Ovarian vein draining corpus luteum had significantly higher plasma oxytocin (11.8 +/- 1.5 pg/ml) than those without corpus luteum (2.1 +/- 0.2 pg/ml) or in the peripheral blood (2.9 +/- 0.3 pg/ml) (p = less than 0.001).
    1 context sentence
    Summary · context
    To determine the site of oxytocin in human ovaries and its relationship with ovarian steroids, oxytocin and steroid hormones were measured in ovarian tissues, ovarian vein, and peripheral blood.

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

  5. 05HumanEndogenous levelObservational studyOther

    Plasma oxytocin of the body's own origin was higher in the ovarian vein draining the corpus luteum than in peripheral blood.

    In plain wordsThe body's own oxytocin in blood was higher in the ovarian vein that drains the corpus luteum than in peripheral blood.

    Peptide
    Oxytocin
    Outcome
    IncreasePlasma oxytocin in ovarian vein draining corpus luteum versus peripheral blood
    Study

    n: not reported in source

    Comparator
    Peripheral blood
    Outcome group
    Sex hormones and fertility · Reproductive and sexual health

    Measurements

    Plasma oxytocin
    11.8 pg/ml
    ovarian vein draining corpus luteum
    Plasma oxytocin
    2.9 pg/ml
    peripheral blood

    Source sentences

    Summary
    Ovarian vein draining corpus luteum had significantly higher plasma oxytocin (11.8 +/- 1.5 pg/ml) than those without corpus luteum (2.1 +/- 0.2 pg/ml) or in the peripheral blood (2.9 +/- 0.3 pg/ml) (p = less than 0.001).
    1 context sentence
    Summary · context
    To determine the site of oxytocin in human ovaries and its relationship with ovarian steroids, oxytocin and steroid hormones were measured in ovarian tissues, ovarian vein, and peripheral blood.

    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 human corpus luteum, the body's own oxytocin concentration correlated significantly with its ipsilateral ovarian vein oxytocin level.

    In plain wordsIn human ovaries, the body's own oxytocin in the corpus luteum was linked to oxytocin levels in the nearby ovarian vein.

    Peptide
    Oxytocin
    Outcome
    Not applicableCorrelation of corpus luteum oxytocin with ipsilateral ovarian vein oxytocin
    Study

    n: not reported in source

    Outcome group
    Sex hormones and fertility · Reproductive and sexual health

    Source sentences

    Summary
    Oxytocin in corpus luteum correlated significantly with its ipsilateral ovarian vein level of oxytocin, estrone, progesterone, and 17 alpha-hydroxyprogesterone.
    1 context sentence
    Summary · context
    To determine the site of oxytocin in human ovaries and its relationship with ovarian steroids, oxytocin and steroid hormones were measured in ovarian tissues, ovarian vein, and peripheral blood.

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

  7. 07HumanEndogenous levelObservational studyOther

    In human ovaries, the body's own oxytocin concentration was higher in corpus luteum than in ovarian stroma.

    In plain wordsIn human ovaries, the body's own oxytocin was higher in the corpus luteum than in ovarian stroma.

    Peptide
    Oxytocin
    Outcome
    IncreaseOxytocin in corpus luteum versus ovarian stroma
    Study

    n: not reported in source

    Comparator
    Ovarian stroma
    Outcome group
    Sex hormones and fertility · Reproductive and sexual health

    Source sentences

    Summary
    Corpus luteum had significantly higher oxytocin, estrone, estradiol, and progesterone concentrations than corpus albicans and ovarian stroma (p = less than 0.01 to less than 0.001).

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

  8. 08HumanEndogenous levelObservational studyOther

    In human corpus luteum, the body's own oxytocin concentration correlated significantly with estradiol concentration.

    In plain wordsIn human ovaries, the body's own oxytocin levels in the corpus luteum were linked to estradiol levels.

    Peptide
    Oxytocin
    Outcome
    Not applicableCorrelation of corpus luteum oxytocin with estradiol
    Study

    n: not reported in source

    Outcome group
    Sex hormones and fertility · Reproductive and sexual health

    Source sentences

    Summary
    Oxytocin concentrations in corpus luteum correlated significantly with estrone, estradiol, and progesterone.

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

  9. 09HumanEndogenous levelObservational studyOther

    In human corpus luteum, the body's own oxytocin concentration correlated significantly with progesterone concentration.

    In plain wordsIn human ovaries, the body's own oxytocin levels in the corpus luteum were linked to progesterone levels.

    Peptide
    Oxytocin
    Outcome
    Not applicableCorrelation of corpus luteum oxytocin with progesterone
    Study

    n: not reported in source

    Outcome group
    Sex hormones and fertility · Reproductive and sexual health

    Source sentences

    Summary
    Oxytocin concentrations in corpus luteum correlated significantly with estrone, estradiol, and progesterone.

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

  10. 10HumanEndogenous levelObservational studyOther

    In human corpus luteum, the body's own oxytocin concentration correlated significantly with ipsilateral ovarian vein estrone level.

    In plain wordsIn human ovaries, the body's own oxytocin in the corpus luteum was linked to estrone levels in the nearby ovarian vein.

    Peptide
    Oxytocin
    Outcome
    Not applicableCorrelation of corpus luteum oxytocin with ipsilateral ovarian vein estrone
    Study

    n: not reported in source

    Outcome group
    Sex hormones and fertility · Reproductive and sexual health

    Source sentences

    Summary
    Oxytocin in corpus luteum correlated significantly with its ipsilateral ovarian vein level of oxytocin, estrone, progesterone, and 17 alpha-hydroxyprogesterone.

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

  11. 11HumanEndogenous levelObservational studyOther

    In human corpus luteum, the body's own oxytocin concentration correlated significantly with ipsilateral ovarian vein progesterone level.

    In plain wordsIn human ovaries, the body's own oxytocin in the corpus luteum was linked to progesterone levels in the nearby ovarian vein.

    Peptide
    Oxytocin
    Outcome
    Not applicableCorrelation of corpus luteum oxytocin with ipsilateral ovarian vein progesterone
    Study

    n: not reported in source

    Outcome group
    Sex hormones and fertility · Reproductive and sexual health

    Source sentences

    Summary
    Oxytocin in corpus luteum correlated significantly with its ipsilateral ovarian vein level of oxytocin, estrone, progesterone, and 17 alpha-hydroxyprogesterone.

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

  12. 12HumanEndogenous levelObservational studyOther

    In human corpus luteum, the body's own oxytocin concentration correlated significantly with ipsilateral ovarian vein 17 alpha-hydroxyprogesterone level.

    In plain wordsIn human ovaries, the body's own oxytocin in the corpus luteum was linked to 17 alpha-hydroxyprogesterone levels in the nearby ovarian vein.

    Peptide
    Oxytocin
    Outcome
    Not applicableCorrelation of corpus luteum oxytocin with ipsilateral ovarian vein 17 alpha-hydroxyprogesterone
    Study

    n: not reported in source

    Outcome group
    Sex hormones and fertility · Reproductive and sexual health

    Source sentences

    Summary
    Oxytocin in corpus luteum correlated significantly with its ipsilateral ovarian vein level of oxytocin, estrone, progesterone, and 17 alpha-hydroxyprogesterone.

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

Studies that did not test the peptide alone1

In this study, Oxytocin was a lab tool or a carrier, part of a mix, or the subject of a lab method. These results are not evidence about taking Oxytocin.

  1. 13LabNot a test of Oxytocin aloneIn vitro (cell-free)Other

    Reverse phase HPLC showed that oxytocin extracted from human corpus luteum was similar to synthetic oxytocin.

    In plain wordsIn a laboratory chemical test, oxytocin extracted from human corpus luteum was similar to synthetic oxytocin.

    Peptide
    Oxytocin
    Outcome
    Not applicableHPLC comparison of corpus luteum oxytocin with synthetic oxytocin
    Study

    humann: not reported in source

    Oxytocin extracted from human corpus luteum
    Comparator
    Synthetic oxytocin
    Outcome group
    Peptide structure and chemistry · Reproductive and sexual health

    Source sentences

    Summary
    Reverse phase high pressure liquid chromatography showed similarity between oxytocin in corpus luteum and synthetic oxytocin.
    1 context sentence
    Summary · context
    To determine the site of oxytocin in human ovaries and its relationship with ovarian steroids, oxytocin and steroid hormones were measured in ovarian tissues, ovarian vein, and peripheral blood.

    In this study, Oxytocin was a lab tool or a carrier, part of a mix, or the subject of a lab method. This result is not evidence about taking Oxytocin.

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, 02:52 UTC

    First added · source update from Europe PMC

Subjects

Terms as the source lists them.

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