Veneer
发表于 2025-3-28 15:38:06
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
发表于 2025-3-28 20:18:02
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博识
发表于 2025-3-29 02:22:04
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轻打
发表于 2025-3-29 06:24:54
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
发表于 2025-3-29 08:52:34
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
发表于 2025-3-29 14:48:53
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
不利
发表于 2025-3-29 16:50:42
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
发表于 2025-3-29 22:32:10
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
发表于 2025-3-30 01:31:36
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
套索
发表于 2025-3-30 07:27:03
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