Results 81 to 90 of about 336,986 (421)

The circadian clock goes genomic [PDF]

open access: yesGenome Biology, 2013
Large-scale biology among plant species, as well as comparative genomics of circadian clock architecture and clock-regulated output processes, have greatly advanced our understanding of the endogenous timing system in plants.
Staiger, Dorothee   +3 more
openaire   +5 more sources

Lipocalin‐2 activates hepatic stellate cells and promotes nonalcoholic steatohepatitis in high‐fat diet–fed Ob/Ob mice

open access: yesHepatology, EarlyView., 2022
Graphical summary of obesity‐induced NASH progression by LCN2 targeted to HSC activation. Abstract Background and Aims In obesity and type 2 diabetes mellitus, leptin promotes insulin resistance and contributes to the progression of NASH via activation of hepatic stellate cells (HSCs).
Kyung Eun Kim   +12 more
wiley   +1 more source

Circadian and Circalunar Clock Interactions in a Marine Annelid

open access: yesCell Reports, 2013
Life is controlled by multiple rhythms. Although the interaction of the daily (circadian) clock with environmental stimuli, such as light, is well documented, its relationship to endogenous clocks with other periods is little understood.
Juliane Zantke   +8 more
doaj   +1 more source

An adipokine feedback regulating diurnal food intake rhythms in mice

open access: yeseLife, 2020
Endogenous circadian clocks have evolved to anticipate 24 hr rhythms in environmental demands. Recent studies suggest that circadian rhythm disruption is a major risk factor for the development of metabolic disorders in humans. Conversely, alterations in
Anthony H Tsang   +4 more
doaj   +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

Optimal implementations for reliable circadian clocks [PDF]

open access: yesPhysical Review Letters, 113, 108101 (2014), 2014
Circadian rhythms are acquired through evolution to increase the chances for survival through synchronizing with the daylight cycle. Reliable synchronization is realized through two trade-off properties: regularity to keep time precisely, and entrainability to synchronize the internal time with daylight.
arxiv   +1 more source

Circadian regulation of lipid mobilization in white adipose tissues. [PDF]

open access: yes, 2013
In mammals, a network of circadian clocks regulates 24-h rhythms of behavior and physiology. Circadian disruption promotes obesity and the development of obesity-associated disorders, but it remains unclear to which extent peripheral tissue clocks ...
Meyer-Kovac, J., Oster, H., Shostak, A.
core   +2 more sources

The intervertebral disc contains intrinsic circadian clocks that are regulated by age and cytokines and linked to degeneration

open access: yesAnnals of the Rheumatic Diseases, 2016
Objectives The circadian clocks are internal timing mechanisms that drive ∼24-hour rhythms in a tissue-specific manner. Many aspects of the physiology of the intervertebral disc (IVD) show clear diurnal rhythms.
M. Dudek   +12 more
semanticscholar   +1 more source

The circadian clock and behavior

open access: yesBehavioural Brain Research, 2001
Temporal organization is a fundamental feature of all living systems. Timing is essential for development, growth and differentiation and in the mature organism, it is essential to maintain normal physiology and behavior. The biological entity that permits an organism's day/night organization is the circadian system.
Urs Albrecht, Henrik Oster
openaire   +3 more sources

Time, the final frontier

open access: yesMolecular Oncology, EarlyView.
This article advocates integrating temporal dynamics into cancer research. Rather than relying on static snapshots, researchers should increasingly consider adopting dynamic methods—such as live imaging, temporal omics, and liquid biopsies—to track how tumors evolve over time.
Gautier Follain   +3 more
wiley   +1 more source

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