Results 51 to 60 of about 336,986 (421)
Patterns of Activity Expressed by Juvenile Horseshoe Crabs [PDF]
, 2013 Adult American horseshoe crabs, Limulus polyphemus, possess endogenous circadian and circatidal clocks controlling visual sensitivity and locomotion, respectively.
Chabot, Christopher C. +3 more
core +2 more sources
The Circadian Clock in the Kidney [PDF]
Journal of the American Society of Nephrology, 2011 Circadian variations in renal function were first described in the 19th century, and GFR, renal blood flow, urine production, and electrolyte excretion exhibit daily oscillations. These clinical observations are well established, but the underlying mechanisms that govern circadian fluctuations in kidney are not fully understood. Here we provide a brief
Michelle L. Gumz, Lisa R. Stow
openaire +3 more sources
Clock at the Core of Cancer Development
Biology, 2021 To synchronize various biological processes with the day and night cycle, most organisms have developed circadian clocks. This evolutionarily conserved system is important in the temporal regulation of behavior, physiology and metabolism.
Sonal A. Patel, Roman V. Kondratov
doaj +1 more source
Circadian rhythm and cell population growth [PDF]
, 2010 Molecular circadian clocks, that are found in all nucleated cells of mammals, are known to dictate rhythms of approximately 24 hours (circa diem) to many physiological processes.
Bekkal Brikci +27 more
core +4 more sources
Circadian Clock Proteins and Immunity [PDF]
Immunity, 2014 Immune parameters change with time of day and disruption of circadian rhythms has been linked to inflammatory pathologies. A circadian-clock-controlled immune system might allow an organism to anticipate daily changes in activity and feeding and the associated risk of infection or tissue damage to the host. Responses to bacteria have been shown to vary
Curtis A. M. +3 more
openaire +5 more sources
Heterogeneity of the Peripheral Circadian Systems in Drosophila melanogaster: A Review
Frontiers in Physiology, 2016 Circadian rhythms in organisms are involved in many aspects of metabolism, physiology, and behavior. In many animals, these rhythms are produced by the circadian system consisting of a central clock located in the brain and peripheral clocks in various ...
Chihiro eIto, Kenji eTomioka
doaj +1 more source
Circadian rhythms and hormonal homeostasis: Pathophysiological implications [PDF]
, 2017 Over recent years, a deeper comprehension of the molecular mechanisms that control biological clocks and circadian rhythms has been achieved. In fact, many studies have contributed to unravelling the importance of the molecular clock for the regulation ...
Bruscalupi, Giovannella, Gnocchi, Davide
core +2 more sources
Endogenous melatonin promotes rhythmic recruitment of neutrophils toward an injury in zebrafish
Scientific Reports, 2017 Neutrophil recruitment to injured tissue appears to be an evolutionarily conserved strategy for organisms to fight against exogenous insults. Recent studies have shown rhythmic migration of neutrophils and several factors, including melatonin, have been ...
Da-long Ren +4 more
doaj +1 more source
Circadian Oscillations in the Murine Preoptic Area Are Reset by Temperature, but Not Light
Frontiers in Physiology, 2022 Mammals maintain their internal body temperature within a physiologically optimal range. This involves the regulation of core body temperature in response to changing environmental temperatures and a natural circadian oscillation of internal temperatures.
Nicolás M. Díaz +6 more
doaj +1 more source
Correlations of single-cell division times with and without periodic forcing [PDF]
Phys. Rev. X 8, 021035 (2018), 2017 Periodic forcing of nonlinear oscillators leads to a large number of dynamic behaviors. The coupling of the cell-cycle to the circadian clock provides a biological realization of such forcing. Using high throughput single-cell microscopy, we have studied the correlations between cell cycle duration in discrete lineages of several different organisms ...
arxiv +1 more source