Results 101 to 110 of about 527,236 (300)
Frontiers in Endocrinology, 2021 BackgroundHepatic lipid metabolism regulates biliary composition and influences the formation of cholesterol gallstones. The genes Hmgcr and Cyp7a1, which encode key liver enzymes, are regulated by circadian rhythm-related transcription factors. We aimed
Chuanqi He +7 more
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Neurologic Clinics, 2019 In mammals, genetic influences of circadian rhythms occur at many levels. A set of core "clock genes" have been identified that form a feedback loop of gene transcription and translation. The core genetic clockwork generates circadian rhythms in cells throughout the body.
Martha Hotz, Vitaterna +2 more
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Implications of Circadian Rhythm in Dopamine and Mood Regulation
Molecules and Cells, 2017 Mammalian physiology and behavior are regulated by an internal time-keeping system, referred to as circadian rhythm. The circadian timing system has a hierarchical organization composed of the master clock in the suprachiasmatic nucleus (SCN) and local ...
Jeongah Kim +5 more
semanticscholar +1 more source
Photoperiodic influences on ultradian rhythms of male Siberian hamsters. [PDF]
, 2012 Seasonal changes in mammalian physiology and behavior are proximately controlled by the annual variation in day length. Long summer and short winter day lengths markedly alter the amplitude of endogenous circadian rhythms and may affect ultradian ...
Prendergast, Brian, ZUCKER, Irving
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Circadian Rhythms in Cyanobacteria [PDF]
Microbiology and Molecular Biology Reviews, 2015 SUMMARY Life on earth is subject to daily and predictable fluctuations in light intensity, temperature, and humidity created by rotation of the earth. Circadian rhythms, generated by a circadian clock, control temporal programs of cellular physiology to facilitate adaptation to daily environmental changes.
Cohen, Susan E, Golden, Susan S
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Advanced ScienceCircadian rhythm plays a critical role in the progression of autoimmune diseases. While our previous study demonstrated the therapeutic effects of melatonin in experimental autoimmune uveitis, the involvement of circadian rhythm remained unclear. Using a
Wenjie Zhu +11 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,
Daan, S., +2 more
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Circadian Rhythm Shapes the Gut Microbiota Affecting Host Radiosensitivity
International Journal of Molecular Sciences, 2016 Modern lifestyles, such as shift work, nocturnal social activities, and jet lag, disturb the circadian rhythm. The interaction between mammals and the co-evolved intestinal microbiota modulates host physiopathological processes.
Ming Cui +11 more
semanticscholar +1 more source
The Influence of Circadian Rhythm on Cancer Cells Targeting and Transfection Efficiency of a Polycation-Drug/Gene Delivery Vector [PDF]
, 2022 Tânia Albuquerque +3 more
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The Possible Role of Extra-ocular Photoreceptors in the Entrainment of Lobster Circadian Rhythms to Light:Dark Cycles [PDF]
, 2013 The American lobster, Homarus americanus, is a decapod crustacean whose daily nocturnal rhythms of activity are driven, in part, by an internal biological clock. While this circadian clock is capable of producing a rhythm of approximately 24 hours on its
McKinney, Sara A
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