Adrenal or thyroid influences on pineal-mediated gonadal regression in male Syrian hamsters

Research output: Contribution to journalArticle

2 Scopus citations

Abstract

Since circulating hormone levels are able to modify some bichemical parameters in the pineal, it is of interest to determine if hormonal manipulations are able to prevent pineal-mediated short photoperiod-induced gonadal regression. Neither adrenalectomy nor thyroidectomy is able to alter short photoperiod-induced gonadal regression in male hamsters. Likewise, addition of excess thyroxine or cortisol, by biweekly implantation of hormone pellets, is unable to modify short photoperiod-induced gonadal regression. These results suggest that the pineal can remain physiologically active even in the face of major hormonal imbalances.

Original languageEnglish (US)
Pages (from-to)319-324
Number of pages6
JournalNeuroendocrinology Letters
Volume11
Issue number6
StatePublished - Dec 1 1989
Externally publishedYes

ASJC Scopus subject areas

  • Endocrinology, Diabetes and Metabolism
  • Endocrinology
  • Neurology
  • Endocrine and Autonomic Systems
  • Clinical Neurology
  • Psychiatry and Mental health

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