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Study · Animal study (in vivo) · rat · 1996

2 results

Chronic administration of the luteinizing hormone-releasing hormone (LHRH) antagonist cetrorelix decreases gonadotrope responsiveness and pituitary LHRH receptor messenger ribonucleic acid levels in rats.

Pinski J, Lamharzi N, Halmos G, Groot K, Jungwirth A, Vadillo-Buenfil M, Kakar SS, Schally AV

Endocrinology1 Aug 1996Cited by 47 (Europe PMC)

Summary

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Text rights: Publisher copyright. Results still quote short attributed sentences.

Results from this study2

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

  1. 01AnimalAnimal study (in vivo)Mechanism

    In male rats, triptorelin pretreatment suppressed LHRH-stimulated LH secretion at 30 min by approximately 33% versus LHRH alone.

    In plain wordsIn rats, triptorelin pretreatment reduced stimulated LH secretion by approximately 33% versus LHRH alone.

    Outcome
    DecreaseStimulated LH secretion
    Study

    ratn: not reported in source

    Male rats
    Comparator
    LHRH alone
    Outcome group
    Sex hormones and fertility · Endocrine and hormones
    Studied dose
    100 micrograms/animal-day · subcutaneous · 4 weeksAs given in this study (rat).

    Source sentences

    Summary
    Our data show that LHRH-stimulated LH secretion at 30 min was suppressed by approximately 33% (P < 0.01) in rats pretreated with [D-Trp6]LHRH compared to that in animals injected with LHRH alone.
    1 context sentence
    Summary · context
    we treated male rats for 4 weeks with daily sc injections of LHRH antagonist [Ac-D-Nal2,Phe(4Cl)2,D-Pal(3)3, D-Cit6,D-Ala10]LHRH (Cetrorelix acetate) or LHRH agonist, [D-Trp6]LHRH, in doses of 100 micrograms/animal-day.
  2. 02AnimalAnimal study (in vivo)Mechanism

    In male rats, pituitary LHRH receptor concentration fell by 69% after triptorelin treatment.

    In plain wordsIn rats, pituitary LHRH receptor concentration fell by 69% after triptorelin treatment.

    Outcome
    DecreasePituitary LHRH receptor concentration
    Study

    ratn: not reported in source

    Male rats
    Outcome group
    Sex hormones and fertility · Endocrine and hormones
    Studied dose
    100 micrograms/animal-day · subcutaneous · 4 weeksAs given in this study (rat).

    Source sentences

    Summary
    The concentration of pituitary receptors for LHRH fell by 69% in the [D-Trp6]LHRH group,
    1 context sentence
    Summary · context
    we treated male rats for 4 weeks with daily sc injections of LHRH antagonist [Ac-D-Nal2,Phe(4Cl)2,D-Pal(3)3, D-Cit6,D-Ala10]LHRH (Cetrorelix acetate) or LHRH agonist, [D-Trp6]LHRH, in doses of 100 micrograms/animal-day.

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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 3Current

    27 Oct 2026, 16:35 UTC

    Study data updated · source update from Europe PMC

  2. Version 2

    22 Oct 2026, 02:26 UTC

    Study results updated

  3. Version 1

    21 Oct 2026, 18:59 UTC

    First added · source update from Europe PMC

Subjects

Terms as the source lists them.

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