Explicating hypergonadotropism in postmenopausal women: A statistical model

Daniel M. Keenan, Johannes D. Veldhuis

Research output: Contribution to journalArticle

17 Scopus citations

Abstract

Neurohormone secretion is viewed here as a variable (unknown) admixture of basal and pulsatile release mechanisms, convolved with individually fitted biexponential elimination kinetics. This construct allows maximum-likelihood estimates of both (regulated and constitutive) components of hormone secretion. Thereby, we infer that a prolonged slow-component half-life of gonadotropin removal and amplified pulsatile (and total) daily luteinizing hormone (LH) secretion rates jointly explicate the postmenopausal elevation in serum LH concentrations without a necessary rise in basal LH secretion rates. This biomathematical formulation should be useful in exploring other neuroregulatory mechanisms that underlie single or dual alterations in the basal versus pulsatile modes of hormone secretion.

Original languageEnglish (US)
Pages (from-to)R1247-R1257
JournalAmerican Journal of Physiology - Regulatory Integrative and Comparative Physiology
Volume278
Issue number5 47-5
DOIs
StatePublished - Jan 1 2000

Keywords

  • Age
  • Analysis
  • Gonadotropin
  • Human
  • Luteinizing hormone
  • Methods
  • Statistics

ASJC Scopus subject areas

  • Physiology
  • Physiology (medical)

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