Results 41 to 50 of about 342,113 (368)

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 Oscillations in the Murine Preoptic Area Are Reset by Temperature, but Not Light

open access: yesFrontiers 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

Thyroxine differentially modulates the peripheral clock: lessons from the human hair follicle [PDF]

open access: yes, 2015
The human hair follicle (HF) exhibits peripheral clock activity, with knock-down of clock genes (BMAL1 and PER1) prolonging active hair growth (anagen) and increasing pigmentation.
Farjo, Bessam   +4 more
core   +4 more sources

Are There Circadian Clocks in Non-Photosynthetic Bacteria?

open access: yesBiology, 2019
Circadian clocks in plants, animals, fungi, and in photosynthetic bacteria have been well-described. Observations of circadian rhythms in non-photosynthetic Eubacteria have been sporadic, and the molecular basis for these potential rhythms remains ...
Francesca Sartor   +7 more
semanticscholar   +1 more source

Local renal circadian clocks control fluid-electrolyte homeostasis and BP. [PDF]

open access: yesJournal of the American Society of Nephrology, 2014
The circadian timing system is critically involved in the maintenance of fluid and electrolyte balance and BP control. However, the role of peripheral circadian clocks in these homeostatic mechanisms remains unknown. We addressed this question in a mouse
Natsuko Tokonami   +10 more
semanticscholar   +3 more sources

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 rhythms in thrombosis and atherothrombotic events

open access: yesFrontiers in Bioscience-Landmark, 2022
Biological circadian rhythms in living organisms are regulated by molecular clocks. Several of these clocks are present in blood vessels, peripheral tissues, and immune cells.
Eduardo Peñaloza-Martínez   +7 more
doaj   +1 more source

Understanding the role of chromatin remodeling in the regulation of circadian transcription in Drosophila. [PDF]

open access: yes, 2015
Circadian clocks enable organisms to anticipate daily changes in the environment and coordinate temporal rhythms in physiology and behavior with the 24-h day-night cycle. The robust cycling of circadian gene expression is critical for proper timekeeping,
Chiu, Joanna C   +2 more
core   +1 more source

Circadian Chimeric Mice Reveal an Interplay Between the Suprachiasmatic Nucleus and Local Brain Clocks in the Control of Sleep and Memory

open access: yesFrontiers in Neuroscience, 2021
Sleep is regulated by circadian and homeostatic processes. Whereas the suprachiasmatic nucleus (SCN) is viewed as the principal mediator of circadian control, the contributions of sub-ordinate local circadian clocks distributed across the brain are ...
Elizabeth Susan Maywood   +4 more
doaj   +1 more source

Influence of the extracellular matrix on cell-intrinsic circadian clocks

open access: yesJournal of Cell Science, 2019
Cell-autonomous circadian clocks coordinate tissue homeostasis with a 24-hourly rhythm. The molecular circadian clock machinery controls tissue- and cell type-specific sets of rhythmic genes.
C. Streuli, Q. Meng
semanticscholar   +1 more source

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