Results 171 to 180 of about 33,968 (213)
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Neuroscience, 1999
It was investigated whether grafts of the suprachiasmatic nucleus could re-instate circadian rhythmicity in the absence of its endogenous vasopressin production and whether the restored rhythm would have the long period length of the donor. Grafts of 17-days-old vasopressin-deficient homozygous Brattleboro rat fetuses, homotopically placed in ...
G J, Boer +4 more
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It was investigated whether grafts of the suprachiasmatic nucleus could re-instate circadian rhythmicity in the absence of its endogenous vasopressin production and whether the restored rhythm would have the long period length of the donor. Grafts of 17-days-old vasopressin-deficient homozygous Brattleboro rat fetuses, homotopically placed in ...
G J, Boer +4 more
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Synaptology of the rat suprachiasmatic nucleus
Cell and Tissue Research, 1976Within the suprachiasmatic nucleus (SCN) of the rat the fine structure of the synapses and some features of their topological arrangement were studied. Five types of synapses could be distinguished with certainty: A. Two types of Gray-type-I (GTI) or asymmetrical synapses (approximately 33%).
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Melatonin receptors in the mammalian suprachiasmatic nucleus
Behavioural Brain Research, 1995The SCN of the hypothalamus, the site of the circadian pacemaker in mammals, is endowed with melatonin receptors of the ML-1 subtype. Here, we present evidence suggesting that activation of melatonin receptors in the SCN regulates circadian rhythms of behavior in the mouse. In a paradigm simulating a eastbound transmeridian flight, timed administration
M L, Dubocovich +2 more
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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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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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Suprachiasmatic nucleus in sleep–wake regulation
Sleep Medicine, 2007The evolution of animals is a consequence of selective specialization of cells, tissues, functional systems, and behavior. The objective of all life is successful reproduction and maintenance of the species. In order to accomplish this, all animals have evolved a division of behavior into two fundamental behavioral states: one characterized by the ...
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Suprachiasmatic nucleus and melatonin
Neurology, 2008AA-NAT= : aryl alkylamine N-acetyltransferase; AD= : Alzheimer disease; AVP= : arginine vasopressin; Ca2+= : calcium; CaMK= : calmodulin kinase; cAMP= : cyclic adenosine monophosphate; CREB= : cyclic adenosine monophosphate (cAMP) responsive element binding protein; GABA= : γ-aminobutyric acid; HI-OMT= : hydroxyl indol-O ...
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