Results 51 to 60 of about 476,463 (387)
Quantitative analysis of regulatory flexibility under changing environmental conditions [PDF]
, 2010 The circadian clock controls 24-h rhythms in many biological processes, allowing appropriate timing of biological rhythms relative to dawn and dusk. Known clock circuits include multiple, interlocked feedback loops.
Adrian W Thomson +12 more
core +4 more sources
Circadian Rhythm Disruption [PDF]
AAOHN Journal, 2011 The circadian rhythm is a 24-hour cycle subject to outside influences. Disruptions of this cycle (e.g., shift work and international travel) have implications for occupational health nurses.
openaire +2 more sources
Melatonin and circadian rhythms in liver diseases: Functional roles and potential therapies
Journal of Pineal Research, 2020 Circadian rhythms and clock gene expressions are regulated by the suprachiasmatic nucleus in the hypothalamus, and melatonin is produced in the pineal gland.
Keisaku Sato +11 more
semanticscholar +1 more source
Genomics of circadian rhythms in health and disease
Genome Medicine, 2019 Circadian clocks are endogenous oscillators that control 24-h physiological and behavioral processes. The central circadian clock exerts control over myriad aspects of mammalian physiology, including the regulation of sleep, metabolism, and the immune ...
Filipa Rijo-Ferreira, J. Takahashi
semanticscholar +1 more source
Genetic insights on sleep schedules: this time, it's PERsonal. [PDF]
, 2012 The study of circadian rhythms is emerging as a fruitful opportunity for understanding cellular mechanisms that govern human physiology and behavior, fueled by evidence directly linking sleep disorders to genetic mutations affecting circadian molecular ...
Chong, SY Christin +2 more
core +1 more source
The role of the circadian rhythms in critical illness with a focus on acute pancreatitis
Heliyon, 2023 Circadian rhythms are responsible for governing various physiological processes, including hormone secretion, immune responses, metabolism, and the sleep/wake cycle.
Heather Waddell +2 more
doaj +1 more source
Calcium dynamics and circadian rhythms in suprachiasmatic nucleus neurons [PDF]
, 2004 The hypothalamic suprachiasmatic nucleus (SCN) has a pivotal role in the mammalian circadian clock. SCN neurons generate circadian rhythms in action potential firing frequencies and neurotransmitter release, and the core oscillation is thought to be ...
Brini M +5 more
core +2 more sources
The Plant Cell, 2006 The earth rotates on its axis every 24 h, with the result that any position on the earth's surface alternately faces toward or away from the sun—day and night. That the metabolism, physiology, and behavior of most organisms changes profoundly between day and night is obvious to even the ...
openaire +2 more sources
A conserved circadian function for the Neurofibromatosis 1 gene [PDF]
, 2018 Summary: Loss of the Neurofibromatosis 1 (Nf1) protein, neurofibromin, in Drosophila disrupts circadian rhythms of locomotor activity without impairing central clock function, suggesting effects downstream of the clock.
Bai, Lei +10 more
core +3 more sources
The role and implications of mammalian cellular circadian entrainment
FEBS Letters, EarlyView.At their most fundamental level, mammalian circadian rhythms occur inside every individual cell. To tell the correct time, cells must align (or ‘entrain’) their circadian rhythm to the external environment. In this review, we highlight how cells entrain to the major circadian cues of light, feeding and temperature, and the implications this has for our
Priya Crosby
wiley +1 more source