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Study · Measured the body's own peptide · 1982

2 results

The effect of parenteral and enteral nutrition on portal and systemic immunoreactivities of gastrin, glucagon and vasoactive intestinal polypeptide (VIP).

Gimmon Z, Murphy RF, Chen MH, Nachbauer CA, Fischer JE, Joffe SN

Annals of surgery1 Nov 1982Cited by 13 (Europe PMC)

PMID6812513 (opens in a new tab)DOI10.1097/00000658-198211000-00010 (opens in a new tab)PepBankPUB-06812513
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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 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 rats, immunoreactive VIP was lower in aortic plasma than in portal plasma.

    In plain wordsIn rats, the body's own VIP level was lower in blood from the aorta than in blood from the portal vein.

    Peptide
    Vasoactive intestinal peptide (VIP, aviptadil)
    Outcome
    DecreaseVIP immunoreactivity in aortic versus portal plasma
    Study

    ratn: not reported in source

    Comparator
    Portal plasma
    Outcome group
    Endogenous peptide levels · Metabolic and weight

    Source sentences

    Summary
    Levels of all immunoreactivities were significantly lower in aortic than portal plasma.
    1 context sentence
    Summary · context
    To compare the effect of parenteral with enteral nutrition on gastroentero-pancreatic hormones, hypercaloric and hypocaloric nutrient preparations, commonly used clinically, were administered to rats either through cannulae in the jugular vein or gastrostomies.

    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 rats, only intragastric hypercaloric nutrition kept VIP immunoreactivity close to the level of orally fed control rats.

    In plain wordsIn rats, only feeding a high-calorie preparation into the stomach kept the body's own VIP near the level of normally fed rats.

    Peptide
    Vasoactive intestinal peptide (VIP, aviptadil)
    Outcome
    MixedPlasma VIP immunoreactivity under parenteral and enteral nutrition
    Study

    ratn: not reported in source

    Comparator
    Control rats fed orally ad libitum
    Outcome group
    Endogenous peptide levels · Metabolic and weight

    Source sentences

    Summary
    Only intragastric hypercaloric nutrition maintained levels of VIP immunoreactivity close to those of control rats.
    1 context sentence
    Summary · context
    To compare the effect of parenteral with enteral nutrition on gastroentero-pancreatic hormones, hypercaloric and hypocaloric nutrient preparations, commonly used clinically, were administered to rats either through cannulae in the jugular vein or gastrostomies.

    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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