Recent neuroendocrine facets of male reproductive aging

J. D. Veldhuis

Research output: Contribution to journalArticlepeer-review

20 Scopus citations

Abstract

We recently identified consistent attenuation of LH and testosterone secretory pulse amplitude and associated disruption of their orderly patterns of release in healthy older men. These dynamic changes emerge despite young-adult concentrations of LH and total testosterone. Moreover, we could document disruption of synchrony between LH secretion and oscillations in FSH, prolactin, sleep-stage and NPT (nocturnal penile tumescence), thus pointing to loss of coordinate neurohormone outflow. Such data suggest that CNS-hypothalamically based regulatory defects may be important in aging, as inferred indirectly in the old male rat and mouse more than 15 years ago. How such alterations are related to specific hypothalamic neurotransmitter changes in aging will be critical to unravel. (C) 2000 Elsevier Science Inc.

Original languageEnglish (US)
Pages (from-to)1281-1308
Number of pages28
JournalExperimental Gerontology
Volume35
Issue number9-10
DOIs
StatePublished - 2000

Keywords

  • Aging
  • Gonadotropin
  • Hypogonadism
  • Luteinizing hormone
  • Male
  • Pituitary
  • Testis

ASJC Scopus subject areas

  • Biochemistry
  • Aging
  • Molecular Biology
  • Genetics
  • Endocrinology
  • Cell Biology

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