| Literature DB >> 6143647 |
J Vanĕcek, L Janský, H Illnerová, K Hoffmann.
Abstract
Daily changes of pineal melatonin content were determined in warm-adapted nonhibernating and cold-adapted hibernating golden hamsters (Mesocricetus auratus). Pineal melatonin in nonhibernating golden hamsters showed marked daily rhythm with the night values about 20 times higher than the daytime ones. In hamsters hibernating for 2 and 3 days the melatonin rhythm was abolished, since no increase of pineal melatonin over basal levels occurred throughout 24 hr period. After arousal from hibernation melatonin increased rapidly regardless whether the hamsters were provoked to arousal during day or night.Entities:
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Year: 1984 PMID： 6143647 DOI： 10.1016/0300-9629(84)90197-x
Source DB: PubMed Journal: Comp Biochem Physiol A Comp Physiol ISSN： 0300-9629