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Different patterns of circadian oscillation in the suprachiasmatic nucleus of hamster, mouse, and rat.
- Source :
-
Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology [J Comp Physiol A Neuroethol Sens Neural Behav Physiol] 2004 Feb; Vol. 190 (2), pp. 167-71. Date of Electronic Publication: 2004 Jan 09. - Publication Year :
- 2004
-
Abstract
- Although spontaneous neural firing in the mammalian suprachiasmatic nucleus is accepted to peak once during mid-subjective day, dual activity peaks have been reported in horizontal brain slices taken from hamsters. These two peaks were interpreted as new evidence for the theory of dual circadian oscillators and raised the expectation that such activity would be found in other circadian model systems. We examined hamster, mouse, and rat slices in both coronal and horizontal planes and found a second peak of activity only in hamster horizontal preparations. This raises interesting questions about the relative circadian physiology of these important experimental animals.
Details
- Language :
- English
- ISSN :
- 0340-7594
- Volume :
- 190
- Issue :
- 2
- Database :
- MEDLINE
- Journal :
- Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology
- Publication Type :
- Academic Journal
- Accession number :
- 14714137
- Full Text :
- https://doi.org/10.1007/s00359-003-0486-z