The photoperiodic message that the pineal gland conveys to the organism is encoded in the circadian melatonin rhythm. Melatonin is a ubiquitously acting hormone that mediates seasonal changes in reproduction in nonhuman mammals and may have reproductive consequences in humans as well. Additionally, melatonin may relate to the function o f the immune system, hormone-responsive tumor growth, circadian rhythm disturbances, and a number of other processes.
ASJC Scopus subject areas
- Endocrinology, Diabetes and Metabolism