Encoding Le Quattro Stagioni within the Mammalian Brain: Photoperiodic Orchestration through the Suprachiasmatic Nucleus
| Autor: | Piotr Zlomanczuk, William J. Schwartz, Horacio O. de la Iglesia, Helena Illnerová |
|---|---|
| Rok vydání: | 2001 |
| Předmět: |
Mammals
0301 basic medicine endocrine system Physiology Suprachiasmatic nucleus Photoperiod Brain Biology Mammalian brain Circadian Rhythm CLOCK 03 medical and health sciences 030104 developmental biology 0302 clinical medicine Light effects on circadian rhythm Physiology (medical) Animals Humans Suprachiasmatic Nucleus Seasons Circadian rhythm Neuroscience hormones hormone substitutes and hormone antagonists 030217 neurology & neurosurgery |
| Zdroj: | Journal of Biological Rhythms. 16:302-311 |
| ISSN: | 1552-4531 0748-7304 |
| Popis: | Within the suprachiasmatic nucleus (SCN) is a pacemaker that not only drives circadian rhythmicity but also directs the circadian organization of photoperiodic (seasonal) timekeeping. Recent evidence using electrophysiological, molecular, and genetic tools now strongly supports this conclusion. Important questions remain regarding the SCN’s precise role(s) in the brain’s photoperiodic circuits, especially among different species, and the cellular and molecular mechanisms for its photoperiodic “memory.” New data suggesting that SCN “clock” genes may also function as “calendar” genes are a first step toward understanding how a photoperiodic clock is built from cycling molecules. |
| Databáze: | OpenAIRE |
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