Results 21 to 30 of about 136,810 (312)
Global parameter search reveals design principles of the mammalian circadian clock [PDF]
, 2008 Background: Virtually all living organisms have evolved a circadian (~24 hour) clock that controls physiological and behavioural processes with exquisite precision throughout the day/night cycle.
Locke, James C. W. +3 more
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Serotonin and circadian rhythms. [PDF]
Psychology & Neuroscience, 2010 All mammal behaviors and functions exhibit synchronization with environmental rhythms. This is accomplished through an internal mechanism that generates and modulates biological rhythms. The circadian timing system, responsible for this process, is formed by connected neural structures.
Pontes, André Luiz Bezerra de +7 more
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Circadian rhythm dysfunction in bipolar affective disorder
European Psychiatry, 2021 Introduction Sleep is paramount in bipolar affective disorder and sleep disturbance can be a trigger or initial manifestation of an episode of illness.
M.T. Valadas, R. Mota Freitas
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Effect of deuterium on the circadian period and metabolism in wild-type and tau mutant Syrian hamsters [PDF]
, 2000 Homozygous tau mutant Syrian hamsters (tau-/-) have a free-running circadian period (τ) around 20 h and a proportionally higher metabolic rate compared with wild-type hamsters (tau+/+) with a period of circa 24 h.
Malgorzata Oklejewicz +8 more
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Food Science and Human Wellness, 2022 Tea is a widespread functional plant resource. Phytochemicals such as tea polyphenols (TP) can interact with the intestinal flora and participate in regulating the expression and rhythm of biological clock genes.
Ruonan Yan, Chi-Tang Ho, Xin Zhang
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Relations between depressed mood and vocal parameters before, during and after sleep deprivation: a circadian rhythm study [PDF]
, 1990 The mechanism underlying improvement after total sleep deprivation (TSD) was studied in 14 major depressed patients. The suggestions that (1) circadian processes and/or (2) dimensions of arousal may play a role in the response to TSD were investigated ...
BEERSMA, DGM +7 more
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Circadian Rhythms in Plants [PDF]
Cold Spring Harbor Perspectives in Biology, 2019 The circadian oscillator is a complex network of interconnected feedback loops that regulates a wide range of physiological processes. Indeed, variation in clock genes has been implicated in an array of plant environmental adaptations, including growth regulation, photoperiodic control of flowering, and responses to abiotic and biotic stress.
Nicky, Creux, Stacey, Harmer
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Chinese Medical Journal, 2021 . Background:. The low accuracy of equations predicting 24-h urinary sodium excretion using a single spot urine sample contributed to the misclassification of individual sodium intake levels.
Ya-Guang Peng +7 more
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Arrhythmic perch hopping and rhythmic feeding of starlings in constant light: Separate circadian oscillators? [PDF]
, 1984 Perch hopping activity and food intake were recorded in starlings in different intensities of continuous illumination (LL), varying from 0.1 to 1000 lux. Circadian rhythmicity in perch hopping disappeared in 10 lux and all higher intensities. In contrast,
Gänshirt, G., +9 more
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International Journal of Nursing Sciences, 2014 Purpose: Patient body temperature was monitored after cardiac valve replacement, in order to explore the characteristics of body-temperature circadian rhythm and the factors influencing that rhythm.
Xiao-Ying Jiang, Cong Wang
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