Titlebook: Vertebrate Circadian Systems; Structure and Physio Jürgen Aschoff,Serge Daan,Gerard A. Groos Conference proceedings 1982 Springer-Verlag, B

Veneer

The Neurophysiology of the Mammalian Suprachiasmatic Nucleus and Its Visual Afferents(Richter 1967). He added: “...we assume that (the clock) is constituted of many cells, each one of which is programmed to function at a rate of 24 or nearly 24 h, that under ordinary conditions these cells all function together but that under certain conditions they may become desyn-chronized at lea

reserve

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輕打

Limits of Entrainment to Periodic Feeding in Rats with Suprachiasmatic Lesionseloquently summarized by Pittendrigh and Daan (1976). In contrast, despite occasional reports of entrainment of circadian rhythms by periodic temperature, noise or by social interaction, the importance of these stimuli as Zeitgeber appears minor by comparison with LD cycles, particularly for mammals

spondylosis

Phase Responses and Characteristics of Free-Running Activity Rhythms in the Golden Hamster: Independker 1979), yet there is little evidence for a similar role in mammals. As was first shown by Richter (1967), pinealectomy has no effect on the free-running activity rhythm of blinded rats. Other studies have also failed to find any difference between pinealectomized (sighted) rats and intact control

Mirage

Circadian and Infradian Activity Rhythms in the Mammalian Pineal Bodyperior cervical ganglia, the parenchymal cells of the pineal synthesize serotonin from tryptophan and convert it to melatonin, the most widely studied pineal substance, and other indoleamines. Melatonin synthesis is stimulated by noradrenaline released from intrapineal sympathetic nerve fibres, invo

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Electrophysiology of the Mammalian Pineal Gland: Evidence for Rhythmical and Non-Rhythmical Elementshe intrinsic cells, the pinealocytes, was unknown for a long time. Biochemically the pinealocyte has been shown to be an endocrine cell synthesizing melatonin and other hormones. In view of the importance of the mammalian pineal as a neurotransducer, and of the limited usefulness of the methods ment

etiquette

Circadian Rhythms of the Isolated Chicken Pineal in Vitror more circadian oscillators (for review see, Takahashi and Menaker 1979). In house sparrows, the pineal is necessary for the persistence of circadian rhythmicity (Gaston and Menaker 1968); pineal transplants restore circadian rhythmicity in arrhythmic pinealectomized hosts (Zimmerman and Menaker 19

IVORY

Endogenous Oscillator and Photoreceptor for Serotonin N-Acetyltransferase Rhythm in Chicken Pineal G nighttime and a low content during daytime. This circadian rhythm of melatonin synthesis is regulated by the change in the activity of serotonin N-acetyltransferase that converts serotonin to N-acetylserotonin (Weissbach et al. 1961). The day-night changes of N-acetyltransferase activity in the pin

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