Results 11 to 20 of about 301,259 (301)
Circadian clock and cancer. [PDF]
Mil Med ResCircadian rhythms play a critical role in regulating physiological and behavioral processes, such as the sleep-wake cycle, hormone secretion, and metabolism. These rhythms are controlled by endogenous biological clocks, which are synchronized with environmental cues, primarily the light-dark cycle.
Wei ZH +6 more
europepmc +3 more sources
Circadian Clocks: Evolution in the Shadows [PDF]
Current Biology, 2009 As scientists, we strive for highly controlled conditions. The real world, however, is noisy. Complex networks are a coping mechanism for an erratic environment.
Merrow, Martha, Maas, Marc F. P. M.
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Circadian Biology: Clocks within Clocks [PDF]
Current Biology, 2005 A small cluster of approximately 20,000 neurons in the ventral hypothalamus provide the body with key time-keeping signals and drive circadian rhythms. This circadian clock exhibits surprisingly complex substructures, with inputs from the retina, and outputs to other brain structures.
Piggins, Hugh D. +1 more
openaire +2 more sources
Novel mechanisms operating in the central pacemaker and in the light-synchronization pathway of Drosophila’s circadian clock [PDF]
, 2011 PhDMost organisms display circadian rhythms of approximately 24 hours in many aspects of their physiology and behaviour. The synchronization between their internal rhythm and the environmental light-dark cycles is essential for an organism’s survival ...
Chen, Ko-Fan
core +4 more sources
Isolation of new genes involved in temperature synchronization of the circadian clock of Drosophila melanogaster [PDF]
, 2010 PhDCircadian clocks regulate behaviour and physiology of many organisms and keep them in synchrony with the environment. Drosophila's circadian clock is mainly synchronized by natural light-dark cycles and temperature fluctuations, both at molecular
Simoni, Alekos
core +4 more sources
The Circadian Clock in Lepidoptera [PDF]
Frontiers in Physiology, 2021 With approximately 160,000 identified species of butterflies and moths, Lepidoptera are among the most species-rich and diverse insect orders. Lepidopteran insects have fundamental ecosystem functions as pollinators and valuable food sources for countless animals.
Brady D. +3 more
openaire +4 more sources
Nutrients, 2023 Rhythmicity is a fundamental characteristic of every living organism [...]
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The circadian clock in mammals [PDF]
The Journal of Headache and Pain, 2000 The basic physiological and anatomical basis for circadian rhythms in mammalian behaviour and physiology is introduced. The pathways involved in photic entrainment of the circadian clock are discussed in relation of new findings that identify the molecules that are involved in signalling between the environment and the clock.
ZORDAN, MAURO AGOSTINO, KYRIACOU C. P.
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Neurodegeneration and the Circadian Clock [PDF]
Frontiers in Aging Neuroscience, 2017 Despite varied etiologies and symptoms, several neurodegenerative diseases-specifically, Alzheimer's (AD), Parkinson's (PD), and Huntington's diseases (HDs)-share the common feature of abnormal circadian rhythms, such as those in behavior (e.g., disrupted sleep/wake cycles), physiological processes (e.g., diminished hormone release) and biochemical ...
Hood, Suzanne, Amir, Shimon
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The contributions of interlocking loops and extensive nonlinearity to the properties of circadian clock models [PDF]
, 2010 Sensitivity and robustness are essential properties of circadian clock systems, enabling them to respond to the environment but resist noisy variations. These properties should be recapitulated in computational models of the circadian clock.
Andrew J Millar +15 more
core +1 more source