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- Hannibal, Jens
- Cell and tissue research 2002 v.309 no.1 pp. 73-88
- agonists; antagonists; biological clocks; brain; circadian rhythm; ganglia; genes; glutamic acid; immunohistochemistry; in vitro studies; mammals; neurotransmitters; photoreceptors; physiology; polypeptides
- ... The brain's biological clock, which, in mammals, is located in the suprachiasmatic nucleus (SCN), generates circadian rhythms in behaviour and physiology. These biological rhythms are adjusted daily (entrained) to the environmental light/dark cycle via a monosynaptic retinofugal pathway, the retinohypothalamic tract (RHT). In this review, the anatomical and physiological evidence for glutamate and ...
- Gillette, Martha U.; Mitchell, Jennifer W.
- Cell and tissue research 2002 v.309 no.1 pp. 99-107
- acetylcholine; biological clocks; calcium; circadian rhythm; cyclic GMP; glutamic acid; melatonin; protein kinase C; ryanodine receptors
- ... The suprachiasmatic nucleus (SCN) contains a biological clock that generates timing signals that drive daily rhythms in behaviors and homeostatic functions. In addition to this pacemaker function, the SCN gates its own sensitivity to incoming signals, which permits appropriate temporal adjustment to achieve synchrony with environmental and organismic states. A series of time-domains, in which the ...