The enigma of the gonadotropin-releasing hormone pulse frequency governing individual secretion of luteinizing hormone and follicle-stimulating hormone

Cornelis B. Lambalk*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review


Luteinizing hormone and follicle-stimulating hormone are the two gonadotropic pituitary hormones stimulated by one hypothalamic gonadotropin-releasing hormone (GnRH) in a pulsatile way. Under several experimental conditions, it appears that a low pulse frequency promotes follicle-stimulating hormone secretion, pointing to an elegant mechanism by which, under governance of one stimulating hormone, the responses of two separate hormones can be individualized. Several experimental and fundamental studies have indicated the underlying mechanisms at the level of gene expression and post receptor events. In this article, an additional explanation is hypothetically put forward on the basis of dynamic and kinetic differences between both hormones in response to GnRH, with a key role of their difference in serum half-life combined with some GnRH-related desensitization features. Although experimentally demonstrated, under clinical conditions its effect remains obscure, likely because of overwhelming hormonal gonadal feedback.
Original languageEnglish
Pages (from-to)27-32
Number of pages6
JournalF and S Reports
Issue number2
Early online date2023
Publication statusPublished - Jun 2023

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