Concept

Rythme circadien

Publications associées (236)

Ribosome profiling and dynamic regulation of translation in mammals

Protein synthesis is an energy-demanding cellular process. Consequently, a well-timed, fine-tuned and plastic regulation of translation is needed to adjust and maintain cell states under dynamically changing environments. Genome-wide monitoring of translat ...

Elsevier2017

Guidelines for Genome-Scale Analysis of Biological Rhythms

Felix Naef, Frédéric Bruno Martin Gachon, Alaaddin Bulak Arpat, Han Wang, Zheng Chen, Xiaodong Li

Genome biology approaches have made enormous contributions to our understanding of biological rhythms, particularly in identifying outputs of the clock, including RNAs, proteins, and metabolites, whose abundance oscillates throughout the day. These methods ...

Sage Publications Inc2017

Pancreatic α- and β-Cellular Clocks Have Distinct Molecular Properties and Impact on Islet Hormone Secretion and Gene Expression

Michaël Unser, Daniel Sage, Cédric Gobet, Frédéric Bruno Martin Gachon

A critical role of circadian oscillators in orchestrating insulin secretion and islet gene transcription has been demonstrated recently. However, these studies focused on whole islets and did not explore the interplay between α-cell and β-cell clocks. We p ...

2017

High light intensity mediates a shift from allochthonous to autochthonous carbon use in phototrophic stream biofilms

Tom Ian Battin, Amber Joy Ulseth

Changes in the riparian vegetation along stream channels, diurnal light availability, and longitudinal fluctuations in the local light regime in streams influence primary production and carbon (C) cycling in benthic stream biofilms. To investigate the infl ...

Amer Geophysical Union2017

Bright Light Delights: Effects of Daily Light Exposure on Emotions, Rest-activity Cycles, Sleep and Melatonin Secretion in Severely Demented Patients

Jean-Louis Scartezzini

Objective: We tested whether the effects of a dynamic lighting system are superior to conventional lighting on emotions, agitation behaviour, quality of life, melatonin secretion and circadian restactivity cycles in severely demented patients. As a compari ...

Bentham Science Publ Ltd2017

A human-centric approach to assess daylight in buildings for non-visual health potential, visual interest and gaze behavior

Marilyne Andersen, Mandana Sarey Khanie, María Lovísa Ámundadóttir, Siobhan Francois Rockcastle

This paper introduces a novel approach for the assessment of daylight performance in buildings, venturing beyond existing methods that evaluate 2-dimensional illumination and comfort within a fixed field-of-view in order to predict human responses to light ...

Elsevier2017

Cholinergic, Glutamatergic, and GABAergic Neurons of the Pedunculopontine Tegmental Nucleus Have Distinct Effects on Sleep/Wake Behavior in Mice

The pedunculopontine tegmental (PPT) nucleus has long been implicated in the regulation of cortical activity and behavioral states, including rapid eye-movement (REM) sleep. For example, electrical stimulation of the PPT region during sleep leads to rapid ...

Soc Neuroscience2017

Circadian rhythm and cell cycle

Rosamaria Cannavo

Circadian rhythms are biological processes found in most living organisms, displaying a roughly 24-hour period, responding primarily to light darkness cycles in an organism's environment. At the cellular level, the circa-24h rhythmicity is generated by a m ...

EPFL2016

PDF Signaling Is an Integral Part of the Drosophila Circadian Molecular Oscillator

Bart Deplancke, Jean-Daniel Feuz

Circadian clocks generate 24-hr rhythms in physiology and behavior. Despite numerous studies, it is still uncertain how circadian rhythms emerge from their molecular and neural constituents. Here, we demonstrate a tight connection between the molecular and ...

Elsevier2016

The Environment is Everything That Isn't Me: Molecular Mechanisms and Evolutionary Dynamics of Insect Clocks in Variable Surroundings

Antonio Carlos Alves Meireles Filho

Circadian rhythms are oscillations in behavior, metabolism and physiology that have a period close to 24 h. These rhythms are controlled by an internal pacemaker that evolved under strong selective pressures imposed by environmental cyclical changes, mainl ...

Frontiers Media Sa2016

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