Results 151 to 160 of about 351,767 (188)
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Resetting the suprachiasmatic nucleus clock
Frontiers in Bioscience, 2004Recent research on the cellular basis of circadian rhythmicity has stressed the importance of clock genes for the maintenance of normal rhythmicity. There have been tremendous advances in our understanding of the inter-relationships of the various genes known to generate the rhythms.
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Serotonin innervation of the primate suprachiasmatic nucleus
Brain Research, 2004The suprachiasmatic nucleus (SCN) in rodents receives a dense innervation from serotonin neurons of the midbrain raphe. This projection overlaps the terminal field of the retinohypothalamic tract in the SCN core, the central part of the nucleus characterized by a population of vasoactive intestinal polypeptide (VIP)-containing neurons.
Robert Y, Moore, Joan C, Speh
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Paradoxical effects of NPY in the suprachiasmatic nucleus
European Journal of Neuroscience, 2006AbstractThe circadian clock in the suprachiasmatic nucleus (SCN) is synchronized by the 24 h, light : dark cycle, and is reset by photic and non‐photic cues. The acute effects of light in the SCN include the increase of mRNA levels of the circadian clock gene Per1 and a dramatic reduction of pineal melatonin.
Karen L, Gamble +4 more
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Immunocytochemistry on Suprachiasmatic Nucleus Slices
2007Immunocytochemistry (ICC) is a sensitive and powerful method that is used to localize and identify cells containing a particular antigen. This chapter is dedicated to ICC of suprachiasmatic nucleus (SCN) slices. After a brief introduction to the technique, the materials and methods sections describe two different methods to obtain SCN slices--the first
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Beyond the suprachiasmatic nucleus.
Chronobiology international, 2004The suprachiasmatic nucleus is the master oscillator controlling circadian rhythms in mammals. Yet extensive temporal restructuring of behavior can occur without participation of the suprachiasmatic nucleus. This raises questions about current thinking about how to cope with jet lag and shift work.
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The Suprachiasmatic Nucleus and the Circadian Timing System
2013The circadian timing system (CTS) in mammals may be defined as a network of interconnected diencephalic structures that regulate the timing of physiological processes and behavioral state. The central feature of the CTS is the suprachiasmatic nucleus (SCN) of the hypothalamus, a self-sustaining circadian oscillator entrained by visual afferents, input ...
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