Results 61 to 70 of about 402,265 (407)

The contribution of circadian clock to the biological processes

open access: yesFrontiers in Molecular Biosciences
All organisms have various circadian, behavioral, and physiological 24-h periodic rhythms, which are controlled by the circadian clock. The circadian clock controls various behavioral and physiological rhythms.
Beibei Luo   +17 more
doaj   +1 more source

The Modification of Circadian Clock Components in Soybean During Domestication and Improvement

open access: yesFrontiers in Genetics, 2020
Agricultural production is greatly dependent on daylength, which is determined by latitude. Living organisms align their physiology to daylength through the circadian clock, which is made up of input sensors, core and peripheral clock components, and ...
Man-Wah Li, Hon-Ming Lam, Hon-Ming Lam
doaj   +1 more source

Environmental memory from a circadian oscillator:the Arabidopsis thaliana clock differentially integrates perception of photic vs. thermal entrainment [PDF]

open access: yes, 2011
The constraint of a rotating earth has led to the evolution of a circadian clock that drives anticipation of future environmental changes. During this daily rotation, the circadian clock of Arabidopsis thaliana (Arabidopsis) intersects with the diurnal ...
Amanda M. Davis   +8 more
core   +1 more source

Circadian clock protein BMAL1 regulates IL-1β in macrophages via NRF2

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2018
Significance The molecular clock provides an anticipatory mechanism, allowing organisms to prepare and respond to daily changes in the external environment.
James O. Early   +17 more
semanticscholar   +1 more source

Circadian Rhythms of Crawling and Swimming in the Nudibranch Mollusc Melibe leonina [PDF]

open access: yes, 2014
Daily rhythms of activity driven by circadian clocks are expressed by many organisms, including molluscs. We initiated this study, with the nudibranch Melibe leonina, with four goals in mind: (1) determine which behaviors are expressed with a daily ...
Kirouac, Lauren E.   +3 more
core   +2 more sources

Regulation of amyloid-β dynamics and pathology by the circadian clock

open access: yesJournal of Experimental Medicine, 2018
Nighttime restlessness and daytime drowsiness are common and early symptoms of Alzheimer’s Disease (AD). This symptomology implicates dysfunctional biological timing, yet the role of the circadian system in AD pathogenesis is unknown.
G. Kress   +6 more
semanticscholar   +1 more source

Acetylation of BMAL1 by TIP60 controls BRD4-P-TEFb recruitment to circadian promoters.

open access: yes, 2019
Many physiological processes exhibit circadian rhythms driven by cellular clocks composed of interlinked activating and repressing elements. To investigate temporal regulation in this molecular oscillator, we combined mouse genetic approaches and ...
Budak, H.   +4 more
core   +1 more source

The neurobiology of circadian rhythms [PDF]

open access: yes, 2009
Purpose of review There is growing awareness of the importance of circadian rhythmicity in various research fields. Exciting developments are ongoing in the field of circadian neurobiology linked to sleep, food intake, and memory.
Boersma, Gretha J.,   +2 more
core   +3 more sources

mTOR signaling regulates central and peripheral circadian clock function

open access: yesPLoS Genetics, 2018
The circadian clock coordinates physiology and metabolism. mTOR (mammalian/mechanistic target of rapamycin) is a major intracellular sensor that integrates nutrient and energy status to regulate protein synthesis, metabolism, and cell growth.
C. Ramanathan   +7 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

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