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Study · Measured the body's own peptide · 2005

1 result

Arginine vasopressin and vasoactive intestinal polypeptide fibers make appositions with gonadotropin-releasing hormone and estrogen receptor cells in the diurnal rodent Arvicanthis niloticus.

Mahoney MM, Smale L

Brain research1 Jul 2005Cited by 13 (Europe PMC)

PMID15936731 (opens in a new tab)DOI10.1016/j.brainres.2005.04.071 (opens in a new tab)PepBankPUB-15936731
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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. 01AnimalEndogenous levelAnimal study (in vivo)Mechanism

    In the diurnal Nile grass rat, fibers containing VIP appeared to contact GnRH-positive and estrogen receptor-positive cells.

    In plain wordsIn grass rats, nerve fibers that contain the body's own VIP seemed to touch cells that make GnRH and carry estrogen receptors.

    Peptide
    Vasoactive intestinal peptide (VIP, aviptadil)
    Outcome
    Not applicableVIP fibers in contact with GnRH and estrogen receptor cells
    Study

    Nile grass rat (Arvicanthis niloticus)n: not reported in source

    brain tissue of a diurnal rodent
    Outcome group
    Sex hormones and fertility · Endocrine and hormones

    Source sentences

    Summary
    We found that fibers containing two peptides found in SCN cells, arginine vasopressin and vasoactive intestinal polypeptide appeared to be in contact with GnRH and ER positive cells.
    1 context sentence
    Summary · context
    We investigated this issue by examining the distribution of cells containing gonadotropin-releasing hormone (GnRH) as well as estrogen receptors (ERs) in relation to fibers containing peptides present in the suprachiasmatic nucleus (SCN) in a diurnal animal, Arvicanthis niloticus (the unstriped Nile grass rat).

    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.

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