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Study · Non-randomized trial · n = 12 · 1991

8 results

Vasoactive intestinal peptide and secretin: effects of combined and separate intravenous infusions on bile secretion in man.

Nyberg B, Sonnenfeld T, Einarsson K

Scandinavian journal of gastroenterology1 Jan 1991Cited by 12 (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 study8

6 results from studies that gave the peptide. 6 results from people.

  1. 01HumanNon-randomized trialEfficacy outcome

    In patients with biliary fistulas, VIP infusion increased bile volume by 60%.

    In plain wordsIn patients with biliary fistulas, VIP infusion increased bile volume.

    Outcome
    IncreaseBile volume during VIP infusion
    Study

    n = 12

    Outcome group
    Gastrointestinal function · Liver
    Studied dose
    Dose not stated · intravenousAs given in this study (human).

    Measurements

    bile volume increase
    60%
    VIP infusion

    Source sentences

    Summary
    During VIP infusion bile volume increased by 60%
    2 context sentences
    Summary · context
    The effects of intravenously administered vasoactive intestinal peptide (VIP) and secretin on bile secretion were studied in 12 patients with complete biliary fistulas.
    Summary · context
    The two peptides were administered both simultaneously and separately.
  2. 02HumanNon-randomized trialEfficacy outcome

    In patients with biliary fistulas, VIP increased bile bicarbonate concentration by about 30%.

    In plain wordsIn patients with biliary fistulas, VIP increased the bicarbonate concentration in bile.

    Outcome
    IncreaseBile bicarbonate concentration
    Study

    n = 12

    Outcome group
    Gastrointestinal function · Liver
    Studied dose
    Dose not stated · intravenousAs given in this study (human).

    Measurements

    bile bicarbonate concentration increase
    30%
    VIP infusion

    Source sentences

    Summary
    VIP increased bile bicarbonate concentration by some 30%.
    2 context sentences
    Summary · context
    The effects of intravenously administered vasoactive intestinal peptide (VIP) and secretin on bile secretion were studied in 12 patients with complete biliary fistulas.
    Summary · context
    The two peptides were administered both simultaneously and separately.
  3. 03HumanNon-randomized trialEfficacy outcome

    In patients with biliary fistulas, bicarbonate output in bile increased twofold during VIP infusion.

    In plain wordsIn patients with biliary fistulas, VIP infusion increased the amount of bicarbonate in bile.

    Outcome
    IncreaseBile bicarbonate output
    Study

    n = 12

    Outcome group
    Gastrointestinal function · Liver
    Studied dose
    Dose not stated · intravenousAs given in this study (human).

    Source sentences

    Summary
    Although secretin did not increase the concentration, bicarbonate output increased threefold during secretin infusion but only twofold during VIP infusion.
    2 context sentences
    Summary · context
    The effects of intravenously administered vasoactive intestinal peptide (VIP) and secretin on bile secretion were studied in 12 patients with complete biliary fistulas.
    Summary · context
    The two peptides were administered both simultaneously and separately.
  4. 04HumanNon-randomized trialEfficacy outcome

    In patients with biliary fistulas, VIP did not significantly change bile acid output.

    In plain wordsIn patients with biliary fistulas, VIP did not clearly change the amount of bile acids released.

    Outcome
    No significant changeBile acid output
    Study

    n = 12

    Outcome group
    Gastrointestinal function · Liver
    Studied dose
    Dose not stated · intravenousAs given in this study (human).

    Source sentences

    Summary
    The outputs of bile acids were not significantly affected by the two peptides
    2 context sentences
    Summary · context
    The effects of intravenously administered vasoactive intestinal peptide (VIP) and secretin on bile secretion were studied in 12 patients with complete biliary fistulas.
    Summary · context
    The two peptides were administered both simultaneously and separately.
  5. 05HumanNon-randomized trialEfficacy outcome

    In patients with biliary fistulas, VIP decreased bile acid concentration by 40%.

    In plain wordsIn patients with biliary fistulas, VIP lowered the bile acid concentration in bile.

    Outcome
    DecreaseBile acid concentration
    Study

    n = 12

    Outcome group
    Gastrointestinal function · Liver
    Studied dose
    Dose not stated · intravenousAs given in this study (human).

    Measurements

    bile acid concentration decrease
    40%
    VIP infusion

    Source sentences

    Summary
    whereas the concentrations decreased by 40% and 70% after VIP and secretin, respectively.
    2 context sentences
    Summary · context
    The effects of intravenously administered vasoactive intestinal peptide (VIP) and secretin on bile secretion were studied in 12 patients with complete biliary fistulas.
    Summary · context
    The two peptides were administered both simultaneously and separately.
  6. 06HumanNon-randomized trialEfficacy outcome

    In patients with biliary fistulas, canalicular bile flow measured by [14C]erythritol was unaffected by VIP infusion.

    In plain wordsIn patients with biliary fistulas, VIP did not change canalicular bile flow.

    Outcome
    No significant changeCanalicular bile flow
    Study

    n = 12

    Outcome group
    Gastrointestinal function · Liver
    Studied dose
    Dose not stated · intravenousAs given in this study (human).

    Source sentences

    Summary
    The canalicular bile flow, measured by [14C]erythritol, was unaffected by VIP infusion
    2 context sentences
    Summary · context
    The effects of intravenously administered vasoactive intestinal peptide (VIP) and secretin on bile secretion were studied in 12 patients with complete biliary fistulas.
    Summary · context
    The two peptides were administered both simultaneously and separately.

Studies that did not test the peptide alone2

In this study, Vasoactive intestinal peptide (VIP, aviptadil) 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 Vasoactive intestinal peptide (VIP, aviptadil).

  1. 07HumanNot a test of Vasoactive intestinal peptide (VIP, aviptadil) aloneNon-randomized trialEfficacy outcome

    In patients with biliary fistulas, combined VIP and secretin infusion increased bile volume by another 70%.

    In plain wordsIn patients with biliary fistulas, giving VIP and secretin together increased bile volume further.

    Outcome
    IncreaseBile volume during combined VIP and secretin infusion
    Study

    n = 12

    Comparator
    VIP infusion alone
    Outcome group
    Gastrointestinal function · Liver

    Measurements

    additional bile volume increase
    70%
    VIP plus secretin infusion

    Source sentences

    Summary
    and during the combined VIP and secretin infusion bile volume increased by another 70%.
    2 context sentences
    Summary · context
    The effects of intravenously administered vasoactive intestinal peptide (VIP) and secretin on bile secretion were studied in 12 patients with complete biliary fistulas.
    Summary · context
    The two peptides were administered both simultaneously and separately.

    In this study, Vasoactive intestinal peptide (VIP, aviptadil) 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 Vasoactive intestinal peptide (VIP, aviptadil).

  2. 08HumanNot a test of Vasoactive intestinal peptide (VIP, aviptadil) aloneNon-randomized trialEfficacy outcome

    In patients with biliary fistulas, combined VIP and secretin infusion increased canalicular clearance by 80%, as secretin alone did.

    In plain wordsIn patients with biliary fistulas, giving VIP and secretin together increased canalicular clearance, as secretin alone did.

    Outcome
    IncreaseCanalicular clearance during combined VIP and secretin infusion
    Study

    n = 12

    Outcome group
    Gastrointestinal function · Liver

    Measurements

    canalicular clearance increase
    80%
    VIP plus secretin infusion

    Source sentences

    Summary
    whereas secretin alone and the combination of the two peptides increased the canalicular clearance by 80%.
    2 context sentences
    Summary · context
    The effects of intravenously administered vasoactive intestinal peptide (VIP) and secretin on bile secretion were studied in 12 patients with complete biliary fistulas.
    Summary · context
    The two peptides were administered both simultaneously and separately.

    In this study, Vasoactive intestinal peptide (VIP, aviptadil) 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 Vasoactive intestinal peptide (VIP, aviptadil).

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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