The Effect of Feeding Regimen on Prolactin Circadian Rhythm
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Plasma prolactin concentrations in ad libitum fed male rats peaked at 19.00 hr. However, prolactin concentrations peaked at 05.00 hr and again at 19.00 hr after 2 wk of being fed between 08.00 and 10.00 hr. Both peaks persisted even after 6 wk of feeding between 08.00 and 10.00 hr, suggesting that prolactin secretion is affected both by the feeding regimen and by the light dark cycle. It is also suggested that prolactin may play an important role in the feeding behavior in the rat as it does in the bird.
Hormone and Metabolic Research
author list (cited authors)
Bellinger, L., Moberg, G., & Mendel, V.
complete list of authors
Bellinger, L||Moberg, G||Mendel, V