Free thyroxin index in normal, melatonin treated and blind hamsters

J. Vriend, R. J. Reiter

Research output: Contribution to journalArticlepeer-review

37 Scopus citations


The administration of melatonin to young male hamsters depressed thyroxin levels, as measured by radioimmunoassay, by 38.5% of saline controls. Free thyroxin index was also significantly depressed by melatonin injections. The depression of thyroxin and free thyroxin index by melatonin injections was more effective in intact than in pinealectomized animals. Blinding of hamsters also reduced both thyroxin and free thyroxin index.

Original languageEnglish (US)
Pages (from-to)231-234
Number of pages4
JournalHormone and Metabolic Research
Issue number3
StatePublished - 1977

ASJC Scopus subject areas

  • Biochemistry, medical
  • Endocrinology
  • Biochemistry
  • Clinical Biochemistry
  • Endocrinology, Diabetes and Metabolism


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