Results 11 to 20 of about 423,011 (334)

Circadian rhythms [PDF]

open access: yesBrain Research Reviews, 1993
Circadian rhythms are a ubiquitous adaptation of eukaryotic organisms to the most reliable and predictable of environmental changes, the daily cycles of light and temperature. Prominent daily rhythms in behavior, physiology, hormone levels and biochemistry (including gene expression) are not merely responses to these environmental cycles, however, but ...
Aronson, B. D.   +20 more
openaire   +5 more sources

Metabolic Effects of Bariatric Surgery in Mouse Models of Circadian Disruption [PDF]

open access: yes, 2015
Background/Objectives: Mounting evidence supports a link between circadian disruption and metabolic disease. Humans with circadian disruption (for example, night-shift workers) have an increased risk of obesity and cardiometabolic diseases compared with ...
Arble, Deanna M.   +4 more
core   +3 more sources

Circadian clocks and breast cancer [PDF]

open access: yes, 2016
Circadian clocks respond to environmental time cues to coordinate 24-hour oscillations in almost every tissue of the body. In the breast, circadian clocks regulate the rhythmic expression of numerous genes.
Blakeman, V   +3 more
core   +2 more sources

Circadian angiogenesis

open access: yesBiomolecular Concepts, 2014
Abstract Daily rhythms of light/darkness, activity/rest and feeding/fasting are important in human physiology and their disruption (for example by frequent changes between day and night shifts) increases the risk of disease. Many of the diseases found to be associated with such disrupted circadian lifestyles, including cancer ...
Jensen Lasse Dahl   +2 more
openaire   +3 more sources

Impact of work schedules of senior resident physicians on patient and resident physician safety: nationwide, prospective cohort study

open access: yesBMJ Medicine, 2023
Objective To determine whether long weekly work hours and shifts of extended duration (≥24 hours) are associated with adverse patient and physician safety outcomes in more senior resident physicians (postgraduate year 2 and above; PGY2+).Design ...
Christopher P Landrigan   +5 more
doaj   +1 more source

FLOWERING LOCUS C -dependent and -independent regulation of the circadian clock by the autonomous and vernalization pathways [PDF]

open access: yes, 2006
Background The circadian system drives pervasive biological rhythms in plants. Circadian clocks integrate endogenous timing information with environmental signals, in order to match rhythmic outputs to the local day/night cycle.
Amasino, Richard M.   +5 more
core   +4 more sources

Splice variants of DOMINO control Drosophila circadian behavior and pacemaker neuron maintenance. [PDF]

open access: yes, 2019
Circadian clocks control daily rhythms in behavior and physiology. In Drosophila, the small ventral lateral neurons (sLNvs) expressing PIGMENT DISPERSING FACTOR (PDF) are the master pacemaker neurons generating locomotor rhythms.
Cai, Yao   +8 more
core   +1 more source

Environmental Circadian Disruption Elevates the IL-6 Response to Lipopolysaccharide in Blood [PDF]

open access: yes, 2013
The immune system is regulated by circadian clocks within the brain and immune cells. Environmental circadian disruption (ECD), consisting of a 6-h phase advance of the light:dark cycle once a week for 4 weeks, elevates the inflammatory response to ...
Adams, Kandis L.   +3 more
core   +2 more sources

Spectroscopic Influence of Virtual Reality and Augmented Reality Display Devices on the Human Nonvisual Characteristics and Melatonin Suppression Response

open access: yesIEEE Photonics Journal, 2018
It has been elucidated that the responses to light by the human eye influence not only color and brightness recognition but also physiological aspects such as hormones. Melatonin, which affects human circadian rhythms, is sensitive to the blue wavelength
Changwook Kim   +3 more
doaj   +1 more source

Removal of melatonin receptor type 1 signalling induces dyslipidaemia and hormonal changes in mice subjected to environmental circadian disruption

open access: yesEndocrinology, Diabetes & Metabolism, 2021
Background Melatonin is a hormone secreted by the pineal gland in a circadian rhythmic manner with peak synthesis at night. Melatonin signalling was suggested to play a critical role in metabolism during the circadian disruption.
Cynthia Tchio   +3 more
doaj   +1 more source

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