A circadian clock in the sinus node mediates day-night rhythms in Hcn4 and heart rate
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چکیده
منابع مشابه
Day and Night: Circadian Rhythms in Worms
Most organisms seem to show ‘‘circadian rhythms’’—cycles of behaviour or gene expression that repeat roughly every 24 hours. Such cycles represent an internal circadian clock that can be ‘‘entrained,’’ or synchronized, to a regular light/dark or temperature cycle, and will then continue to cycle in the absence of the light or temperature stimulus. In the nematode worm Caenorhabditis elegans, ho...
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Circadian rhythms are the external expression of an internal clock mechanism that measures daily time.1 Periodic environmental cues entrain or set the circadian clocks. The daily light-dark cycle represents the most dominant and potent entraining stimulus in mammals. An entrained clock coordinates physiological events to the 24hour day. Normally, cardiovascular or hemodynamic parameters, such a...
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Conroy, R. T. W. L., Elliott, A. L., and Mills, J. N. (1970). Brit. J. industr. Med., 27, 356-363. Circadian excretory rhythms in night workers. Urine samples have been collected from day and night shift workers in a light engineering factory over periods of 24 or 48 hours during which blood was also collected for determination of plasma 11-hydroxycorticosteroids (11-OHCS). Different subjects d...
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ژورنال
عنوان ژورنال: Heart Rhythm
سال: 2021
ISSN: 1547-5271
DOI: 10.1016/j.hrthm.2020.11.026