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Study · Not a test of the peptide alone · 2002

1 result

Activation of melanocortin MC(4) receptors increases erectile activity in rats ex copula.

Martin WJ, McGowan E, Cashen DE, Gantert LT, Drisko JE, Hom GJ, Nargund R, Sebhat I, Howard AD, Van der Ploeg LH, MacIntyre DE

European journal of pharmacology1 Nov 2002Cited by 63 (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 study1

No result from this study comes from a test of the peptide.

Studies that did not test the peptide alone1

In this study, Oxytocin 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 Oxytocin.

  1. 01AnimalNot a test of Oxytocin aloneAnimal study (in vivo)Mechanism

    In rats ex copula, the oxytocin antagonist L-368899, given systemically or centrally, attenuated the pro-erectile effects of the melanocortin MC(4) agonist THIQ.

    In plain wordsIn rats, a drug that blocks oxytocin receptors reduced the erection-promoting effect of another drug, THIQ.

    Peptide
    Oxytocin
    Outcome
    DecreaseAttenuation of THIQ-induced erectile activity by oxytocin antagonist L-368899
    Study

    ratn: not reported in source

    Rats ex copula
    Outcome group
    Receptor activity and mechanism · Reproductive and sexual health

    Source sentences

    Summary
    These pro-erectile effects were also attenuated by systemic or central administration of an oxytocin antagonist (L-368899, 1 mg/kg, i.v.).
    1 context sentence
    Summary · context
    Systemic administration of a melanocortin MC(4) receptor agonist (N-[(3R)-1,2,3,4-tetrahydroisoquinolinium-3-ylcarbonyl]-(1R)-1-(4-chlorobenzyl)-2-[4-cyclohexyl-4-(1H-1,2,4-triazol-1ylmethyl)piperidin-1-yl]-2-oxoethylamine; THIQ) with high selectivity over other melanocortin receptors enhanced intra…

    In this study, Oxytocin 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 Oxytocin.

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. Versions 3 to 38Current

    28 Oct 2026, 02:04 UTC

    The same notice was added 36 times, first on 9 Oct 2026, 18:17 UTC. The status did not change between them.

    Study results updated

  2. Version 2

    9 Oct 2026, 03:04 UTC

    Study data updated · source update from Europe PMC

  3. Version 1

    9 Oct 2026, 02:53 UTC

    First added · source update from Europe PMC

Subjects

Terms as the source lists them.

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