Results 41 to 50 of about 5,427 (264)

The circadian clock that controls gene expression in Arabidopsis is tissue specific [PDF]

open access: yes, 2002
The expression of CHALCONE SYNTHASE (CHS) expression is an important control step in the biosynthesis of flavonoids, which are major photoprotectants in plants.
McGrath, Robert B   +9 more
core   +1 more source

Circadian Clocks and Metabolism [PDF]

open access: yes, 2013
Circadian clocks maintain periodicity in internal cycles of behavior, physiology, and metabolism, enabling organisms to anticipate the 24-h rotation of the Earth. In mammals, circadian integration of metabolic systems optimizes energy harvesting and utilization across the light/dark cycle.
Marcheva, Biliana   +5 more
openaire   +3 more sources

Heterogeneity of the Peripheral Circadian Systems in Drosophila melanogaster: A Review

open access: yesFrontiers 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 clocks: running on redox.

open access: yesCell, 2001
The circadian clock in all organisms is so intimately linked to light reception that it appears as if evolution has simply wired a timer into the mechanism that processes photic information. Several recent studies have provided new insights into the role of light input pathways in the circadian system of Arabidopsis.
Merrow, Martha, Roenneberg, Till
openaire   +3 more sources

Circadian Rhythms in Urinary Functions: Possible Roles of Circadian Clocks? [PDF]

open access: yesInternational Neurourology Journal, 2011
Circadian clocks are the endogenous oscillators that harmonize a variety of physiological processes within the body. Although many urinary functions exhibit clear daily or circadian variation in diurnal humans and nocturnal rodents, the precise ...
Jong-Yun Noh   +8 more
doaj   +1 more source

Clock at the Core of Cancer Development

open access: yesBiology, 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

Cellular mechano-environment regulates the mammary circadian clock

open access: yesNature Communications, 2017
Circadian clocks regulate physiological and behavioural rhythms. Here, the authors show that the stiffness of the extracellular environment regulates circadian clocks in murine breast epithelium via Rho signalling, and explain how extracellular matrix ...
Nan Yang   +10 more
doaj   +1 more source

The circadian nature of mitochondrial biology

open access: yesFrontiers in Endocrinology, 2016
Circadian clocks orchestrate the daily changes in physiology and behavior of light sensitive organisms. These clocks measure about 24 h and tick in a self-sustained and cell-autonomous manner.
Gal Manella, Gad Asher
doaj   +1 more source

Circadian Organization in Hemimetabolous Insects [PDF]

open access: yes, 2004
The circadian system of hemimetabolous insects is reviewed in respect to the locus of the circadian clock and multioscillatory organization. Because of relatively easy access to the nervous system, the neuronal organization of the clock system in ...
Abdelsalam, Salaheldin, Tomioka, Kenji
core   +1 more source

SnapShot: Circadian Clock

open access: yesCell, 2017
Most creatures on this planet possess an ability to anticipate upcoming events in the environment, courtesy of their circadian clocks. This allows them to prepare for those changes instead of being caught by surprise, which could mean the difference between life and death. In this SnapShot, we describe the basics of how the clock ticks.
Bryan J, Song, Dragana, Rogulja
openaire   +2 more sources

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