Skip to content

Study · Measured the body's own peptide · 1992

2 results

A comparative study of the effects of neonatal androgenization and estrogenization on vasoactive intestinal peptide levels in the anterior pituitary and the hypothalamus of adult female rats.

Watanobe H, Takebe K

Neuroendocrinology1 Nov 1992Cited by 8 (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 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 adult female rats treated neonatally with testosterone or estradiol, the body's own vasoactive intestinal peptide in the suprachiasmatic nucleus, paraventricular nucleus and median eminence did not correlate significantly with plasma prolactin.

    In plain wordsIn female rats, the body's own VIP in three brain areas was not linked to blood prolactin.

    Outcome
    No significant changeCorrelation of VIP in SCN, PVN and median eminence with plasma prolactin
    Study

    ratn: not reported in source

    Neonatal androgenized or estrogenized adult female rats
    Outcome group
    Sex hormones and fertility · Endocrine and hormones

    Source sentences

    Summary
    VIP content determined in the suprachiasmatic nucleus, the paraventricular nucleus and the median eminence did not significantly correlate with plasma PRL.
    1 context sentence
    Summary · context
    We compared the effects of neonatal androgenization (NA) and estrogenization (NE) on vasoactive intestinal peptide (VIP) levels in the anterior pituitary (AP) and the hypothalamus and on prolactin (PRL) secretion in adult female rats.

    This result measures the body's own Vasoactive intestinal peptide (VIP, aviptadil). Nobody was given the peptide. It is not evidence about taking it.

  2. 02AnimalEndogenous levelAnimal study (in vivo)Other

    In adult female rats treated neonatally with testosterone or estradiol, the body's own vasoactive intestinal peptide in the anterior pituitary correlated significantly with plasma prolactin and estradiol.

    In plain wordsIn female rats, the body's own VIP in the pituitary was linked to blood prolactin and estradiol.

    Outcome
    Not applicableCorrelation of anterior pituitary VIP with plasma prolactin and estradiol
    Study

    ratn: not reported in source

    Neonatal androgenized or estrogenized adult female rats
    Outcome group
    Sex hormones and fertility · Endocrine and hormones

    Source sentences

    Summary
    In contrast, there were significant correlations among AP VIP, plasma PRL and estradiol.
    1 context sentence
    Summary · context
    We compared the effects of neonatal androgenization (NA) and estrogenization (NE) on vasoactive intestinal peptide (VIP) levels in the anterior pituitary (AP) and the hypothalamus and on prolactin (PRL) secretion in adult female rats.

    This result measures the body's own Vasoactive intestinal peptide (VIP, aviptadil). 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

    12 Oct 2026, 12:58 UTC

    Study results updated

  2. Version 1

    9 Oct 2026, 12:41 UTC

    First added · source update from Europe PMC

Subjects

Terms as the source lists them.

PepBank is a research reference. Talk to a doctor before you use any peptide.