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Neurocircuitry of Circadian Clocks
Classical studies using several insect species have demonstrated that the principal circadian clock cells that generate circadian oscillations and...
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Microbial circadian clocks: host-microbe interplay in diel cycles
BackgroundCircadian rhythms, observed across all domains of life, enable organisms to anticipate and prepare for diel changes in environmental...
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Environmental Adaptation and Evolution of Circadian Clocks
In insects, circadian clocks regulate daily rhythmicity in behavior (e.g., activity, feeding, mating, and oviposition), physiological processes, and...
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Is there crosstalk between circadian clocks in plants and the rhizomicrobiome?
Circadian clocks occur across the kingdoms of life, including some fungi and bacteria present in the root-associated soil known as the rhizosphere....
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Evolution of the repression mechanisms in circadian clocks
BackgroundCircadian (daily) timekee** is essential to the survival of many organisms. An integral part of all circadian timekee** systems is...
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Photoperiodic time measurement, photoreception, and circadian clocks in insect photoperiodism
Photoperiodism is an adaptive response used by organisms to assess day length and anticipate upcoming seasons and to coordinate their (or their...
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Peripheral Circadian Clock
Insects exhibit circadian rhythms in a variety of behavioral and physiological processes. These rhythms are controlled not only by the central clock...
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Circadian Clocks Methods and Protocols
This volume presents techniques used by researchers from all branches of biology to study daily changes at a molecular level in many physiological...
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General Feature of Circadian Rhythms
The circadian rhythm is an endogenous rhythm with a period of approximately 24 h. Organisms, including insects, possess the rhythm to live with the...
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Misaligned feeding schedule elicits divergent circadian reorganizations in endo- and exocrine pancreas clocks
Misaligned feeding may lead to pancreatic insufficiency, however, whether and how it affects circadian clock in the exocrine pancreas is not known....
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Molecular Mechanism of the Circadian Clock
Nearly all organisms possess a circadian clock, a genetically determined device that generates endogenous oscillations with a period of approximately...
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The Bacterial Perspective on Circadian Clocks
Prokaryotes were long thought to be incapable of expressing circadian (daily) rhythms. Research on nitrogen-fixing cyanobacteria in the 1980s...
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Biological Clocks: Why We Need Them, Why We Cannot Trust Them, How They Might Be Improved
AbstractLate in life, the body is at war with itself. There is a program of self-destruction (phenoptosis) implemented via epigenetic and other...
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Desynchronizing the sleep–wake cycle from circadian timing to assess their separate contributions to physiology and behaviour and to estimate intrinsic circadian period
Circadian clocks drive cyclic variations in many aspects of physiology, but some daily variations are evoked by periodic changes in the environment...
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Lunar and Tidal Rhythms and Clocks
The presence of the moon results in tidal and lunar cycles that particularly affect life in the intertidal zone through tidal motion. A few insect...
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Ror homolog nhr-23 is essential for both developmental clock and circadian clock in C. elegans
Animals have internal clocks that generate biological rhythms. In mammals, clock genes such as Period form the circadian clock to generate...
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Immunological and inflammatory effects of infectious diseases in circadian rhythm disruption and future therapeutic directions
BackgroundCircadian rhythm is characterised by daily variations in biological activity to align with the light and dark cycle. These diurnal...
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Nutrition, Epigenetics, and Circadian Rhythms
Most organisms adapt to the 24-h cycle of the Earth’s rotation by anticipating the time of day through light–dark processes. The biological clock is...
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Integrated neural tracing and in-situ barcoded sequencing reveals the logic of SCN efferent circuits in regulating circadian behaviors
The circadian clock coordinates rhythms in numerous physiological processes to maintain organismal homeostasis. Since the suprachiasmatic nucleus...
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Insights into the Evolution of Circadian Clocks Gleaned from Bacteria
Circadian clocks are ubiquitous throughout the Tree of Life, being present in organisms from bacteria to mammals. These clocks are generally thought...