Skip to content

Study · In vitro (cells) · chicken · 1988

6 results

Effects of vasoactive intestinal peptide on steroid secretion and plasminogen activator activity in granulosa cells of the hen.

Johnson AL, Tilly JL

Biology of reproduction1 Mar 1988Cited by 18 (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 study6

4 results from studies that gave the peptide. No result from this study comes from people.

  1. 01LabIn vitro (cells)Efficacy outcome

    In isolated hen granulosa cells, VIP induced a dose-related increase in progesterone secretion, with an apparent ED50 of 5.9 X 10(-7) M.

    In plain wordsIn lab-grown hen follicle cells, VIP raised progesterone release in a dose-related way.

    Outcome
    IncreaseProgesterone secretion
    Study

    chickenn: not reported in source

    isolated granulosa cells of the largest preovulatory (F1) follicle of the hen
    Outcome group
    Sex hormones and fertility · Reproductive and sexual health
    Studied dose
    Dose not stated

    Source sentences

    Summary
    Vasoactive intestinal peptide, but not avian pancreatic polypeptide, the chicken VIP fragment (16-28) or the VIP congener, PHM-27, induced a dose-related increase in progesterone and androgen secretion, with an apparent median effective dose (ED50) of 5.9 X 10(-7) and 5.7 X 10(-7) M, respectively
    1 context sentence
    Summary · context
    Studies were conducted to evaluate the effects of vasoactive intestinal peptide (VIP) on steroidogenesis and plasminogen-activator (PA) activity in isolated granulosa cells of the largest preovulatory (F1) follicle of the hen.
  2. 02LabIn vitro (cells)Efficacy outcome

    In isolated hen granulosa cells, VIP induced a dose-related increase in androgen secretion, with an apparent ED50 of 5.7 X 10(-7) M.

    In plain wordsIn lab-grown hen follicle cells, VIP raised androgen release in a dose-related way.

    Outcome
    IncreaseAndrogen secretion
    Study

    chickenn: not reported in source

    isolated granulosa cells of the largest preovulatory (F1) follicle of the hen
    Outcome group
    Sex hormones and fertility · Reproductive and sexual health
    Studied dose
    Dose not stated

    Source sentences

    Summary
    Vasoactive intestinal peptide, but not avian pancreatic polypeptide, the chicken VIP fragment (16-28) or the VIP congener, PHM-27, induced a dose-related increase in progesterone and androgen secretion, with an apparent median effective dose (ED50) of 5.9 X 10(-7) and 5.7 X 10(-7) M, respectively
    1 context sentence
    Summary · context
    Studies were conducted to evaluate the effects of vasoactive intestinal peptide (VIP) on steroidogenesis and plasminogen-activator (PA) activity in isolated granulosa cells of the largest preovulatory (F1) follicle of the hen.
  3. 03LabIn vitro (cells)Mechanism

    In isolated hen granulosa cells, VIP acted on steroidogenesis considerably more slowly than luteinizing hormone, attributed to slower induction of cAMP formation.

    In plain wordsIn lab-grown hen follicle cells, VIP acted on steroid release more slowly than luteinizing hormone.

    Outcome
    Not applicableTime course of VIP steroidogenesis versus luteinizing hormone
    Study

    chickenn: not reported in source

    isolated granulosa cells of the largest preovulatory (F1) follicle of the hen
    Comparator
    Luteinizing hormone
    Outcome group
    Sex hormones and fertility · Reproductive and sexual health
    Studied dose
    Dose not stated

    Source sentences

    Summary
    However, the time course of action for VIP on steroidogenesis was considerably slower than that for the gonadotropin, luteinizing hormone (LH), and this was attributed to a slower induction of cyclic adenosine 3',5'-monophosphate (cAMP) formation within granulosa cells.
    1 context sentence
    Summary · context
    Studies were conducted to evaluate the effects of vasoactive intestinal peptide (VIP) on steroidogenesis and plasminogen-activator (PA) activity in isolated granulosa cells of the largest preovulatory (F1) follicle of the hen.
  4. 04LabIn vitro (cells)Efficacy outcome

    In isolated hen granulosa cells, VIP was a potent inhibitor of plasminogen-activator activity.

    In plain wordsIn lab-grown hen follicle cells, VIP strongly reduced plasminogen-activator activity.

    Outcome
    DecreasePlasminogen activator activity
    Study

    chickenn: not reported in source

    isolated granulosa cells of the largest preovulatory (F1) follicle of the hen
    Outcome group
    Sex hormones and fertility · Reproductive and sexual health
    Studied dose
    Dose not stated

    Source sentences

    Summary
    Finally, VIP was found to be a potent inhibitor of PA activity, and this inhibition was potentiated by coincubation of VIP with IBMX.
    1 context sentence
    Summary · context
    Studies were conducted to evaluate the effects of vasoactive intestinal peptide (VIP) on steroidogenesis and plasminogen-activator (PA) activity in isolated granulosa cells of the largest preovulatory (F1) follicle of the hen.

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. 05LabNot a test of Vasoactive intestinal peptide (VIP, aviptadil) aloneIn vitro (cells)Mechanism

    In isolated hen granulosa cells, cotreatment with VIP and the phosphodiesterase inhibitor IBMX potentiated the steroidogenic effects of VIP, at least in part through the adenylyl cyclase system.

    In plain wordsIn lab-grown hen follicle cells, adding the enzyme blocker IBMX to VIP increased steroid release further.

    Outcome
    IncreaseSteroidogenesis with VIP plus IBMX
    Study

    chickenn: not reported in source

    isolated granulosa cells of the largest preovulatory (F1) follicle of the hen
    Comparator
    VIP alone
    Outcome group
    Sex hormones and fertility · Reproductive and sexual health

    Source sentences

    Summary
    The effects of VIP were, at least in part, mediated by the adenylyl cyclase system in that cotreatment of cells with VIP and the phosphodiesterase inhibitor, 3-isobutyl-1-methylxanthine (IBMX), potentiated the steroidogenic effects.
    1 context sentence
    Summary · context
    Studies were conducted to evaluate the effects of vasoactive intestinal peptide (VIP) on steroidogenesis and plasminogen-activator (PA) activity in isolated granulosa cells of the largest preovulatory (F1) follicle of the hen.

    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. 06LabNot a test of Vasoactive intestinal peptide (VIP, aviptadil) aloneIn vitro (cells)Mechanism

    In isolated hen granulosa cells, coincubation of VIP with IBMX potentiated the inhibition of plasminogen-activator activity.

    In plain wordsIn lab-grown hen follicle cells, adding IBMX to VIP made the drop in plasminogen-activator activity larger.

    Outcome
    DecreasePlasminogen activator inhibition with VIP plus IBMX
    Study

    chickenn: not reported in source

    isolated granulosa cells of the largest preovulatory (F1) follicle of the hen
    Comparator
    VIP alone
    Outcome group
    Sex hormones and fertility · Reproductive and sexual health

    Source sentences

    Summary
    and this inhibition was potentiated by coincubation of VIP with IBMX.
    1 context sentence
    Summary · context
    Studies were conducted to evaluate the effects of vasoactive intestinal peptide (VIP) on steroidogenesis and plasminogen-activator (PA) activity in isolated granulosa cells of the largest preovulatory (F1) follicle of the hen.

    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.

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