Administration of agonistic and antagonistic analogues of LH-RH induce anovulation in Macaca fasicularis

M. R. Borghi, R. Niesvisky, D. H. Coy, J. P. Balmaceda, Andrew V Schally, R. H. Asch

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

This study was designed to compare the effects of [N-Ac-D-Trp1,3, D-p-Cl-Phe2, D-Phe6, D-Ala10] (A-LH-RH), an inhibitory analogue, and D-Trp6-LH-RH, an agonist of LH-RH, administered to normally cycling cynomologous monkeys. Animals were divided into three groups (n = 5 each), each group receiving one of the following daily during the first 25 days of the menstrual cycle: 1) 20 μg of D-Trp6-LH-RH daily. 2) 1 mg of A-LH-RH, and 3) vehicle. Ovulation was established by serial laparoscopies and serum estradiol measurement. Controls presented normal cycles, as evidenced by ovulation day, luteal phase length and hormone levels. Ovulation was completely inhibited during drug administration in all animals of groups 1 and 2. Luteal phase length of all monkeys that ovulated was normal. The present data, therefore, not only show evidence for a consistent anovulatory effect of agonistic and antagonistic analogues of LH-RH in non-human primates, but also open a new approach for non-steroidal contraception.

Original languageEnglish
Pages (from-to)619-626
Number of pages8
JournalContraception
Volume27
Issue number6
DOIs
StatePublished - Jan 1 1983
Externally publishedYes

Fingerprint

Anovulation
Macaca
Gonadotropin-Releasing Hormone
Ovulation
Luteal Phase
Corpus Luteum Hormones
Haplorhini
Menstrual Cycle
Contraception
Laparoscopy
Primates
Estradiol
Serum
Pharmaceutical Preparations

ASJC Scopus subject areas

  • Medicine(all)
  • Obstetrics and Gynecology

Cite this

Administration of agonistic and antagonistic analogues of LH-RH induce anovulation in Macaca fasicularis. / Borghi, M. R.; Niesvisky, R.; Coy, D. H.; Balmaceda, J. P.; Schally, Andrew V; Asch, R. H.

In: Contraception, Vol. 27, No. 6, 01.01.1983, p. 619-626.

Research output: Contribution to journalArticle

Borghi, M. R. ; Niesvisky, R. ; Coy, D. H. ; Balmaceda, J. P. ; Schally, Andrew V ; Asch, R. H. / Administration of agonistic and antagonistic analogues of LH-RH induce anovulation in Macaca fasicularis. In: Contraception. 1983 ; Vol. 27, No. 6. pp. 619-626.
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