Premium
Features of the Circadian Clock in the Avian Pineal Gland
Author(s) -
CSERNUS V,
FALUHELYI N,
NAGY A D
Publication year - 2005
Publication title -
annals of the new york academy of sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.712
H-Index - 248
eISSN - 1749-6632
pISSN - 0077-8923
DOI - 10.1196/annals.1327.043
Subject(s) - per2 , per1 , melatonin , pineal gland , circadian rhythm , endocrinology , light effects on circadian rhythm , medicine , circadian clock , clock , pinealocyte , biology , rhythm , dynamo , physics , quantum mechanics , magnetic field
A bstract : The effects of different environmental factors on the circadian rhythm of melatonin release by chicken pineal glands were analyzed in 5‐day experiments in vitro . Periodic, brief 4‐h illumination at around midnight resulted in phase inversion in 2 days. Exposure to repeated 41°C temperature elevation at around midnight caused no phase shift in the basic melatonin rhythm. Repeated inversion of the polarity of the magnetic field also affected rhythmic melatonin release. Additionally, expressions of Per1, Per2, Per3, Bmal1, Bmal2, Clock, Cry1, and Cry2 clock genes were simultaneously detected in single chicken pineal glands.