Pineal Melatonin Content throughout the Hamster Estrous Cycle

M. D. Rollag, H. J. Chen, B. N. Ferguson, R. J. Reiter

Research output: Contribution to journalArticlepeer-review

15 Scopus citations


A circadian rhythm in pineal melatonin content persisted throughout the estrous cycle of female hamsters maintained in a 14-hr-light:10-hr-dark photoperiod. Peak melatonin concentrations occurred 8 hr after the onset of darkness and were of similar duration and magnitude on each day of the reproductive cycle. These results do not support the hypothesis that pineal melatonin production in hamsters is inhibited by estrogen feedback.

Original languageEnglish (US)
Pages (from-to)211-213
Number of pages3
JournalProceedings of the Society for Experimental Biology and Medicine
Issue number1
StatePublished - Oct 1979

ASJC Scopus subject areas

  • General Biochemistry, Genetics and Molecular Biology


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