Related Experiment Videos
Continuous light exposure modifies the nocturnal increase in rat thymus type II thyroxine 5'-deiodinase
M Soutto1, P Molinero, J M Guerrero
1Department of Medical Biochemistry and Molecular Biology, School of Medicine, University of Sevilla, Spain.
Cellular and Molecular Life Sciences : CMLS
|August 1, 1997
Abstract:
In the present study we show that thymus type II thyroxine deiodinase activity exhibits a nyctohemeral profile, with basal values during the day and high values at night. This rhythmic character is dependent on neuroadrenergic input since exposure to continuous light at night completely abolished the nocturnal rise of the enzyme activity. However, treatment with isoproterenol under light exposure at night restored it.