Results 11 to 20 of about 117,415 (263)

Circadian rhythms, cardiac arrhythmias and sudden death

open access: yesFrontiers in Bioscience-Landmark, 2021
The heart, like most mammalian organs, is influenced by circadian patterns. The suprachiasmatic nucleus in the hypothalamus has a key role in this influence, via various neurohumoral factors, particularly the autonomic nervous system.
Lourdes Vicent, Manuel Martínez-Sellés
doaj   +1 more source

Circadian rhythm disorders in patients with advanced cancer: a scoping review

open access: yesFrontiers in Oncology, 2023
Circadian rhythms can be demonstrated in several biomarkers and behavioural activities, with rhythmical patterns occurring roughly over a 24-h period.
Craig Gouldthorpe   +6 more
doaj   +1 more source

Estimating Day-to-Day Circadian Rhythm in Patients with Severe Acquired Brain Injury at the Beginning of In-Hospital Rehabilitation

open access: yesJournal of Integrative Neuroscience, 2022
Background: Patients with severe acquired brain injury (sABI) are likely to have a disturbed circadian rhythm in the early phase of neurorehabilitation.
Simon Svanborg Kjeldsen   +3 more
doaj   +1 more source

Circadian Rhythms in Plants [PDF]

open access: yesCold Spring Harbor Perspectives in Biology, 2019
The circadian oscillator is a complex network of interconnected feedback loops that regulates a wide range of physiological processes. Indeed, variation in clock genes has been implicated in an array of plant environmental adaptations, including growth regulation, photoperiodic control of flowering, and responses to abiotic and biotic stress.
Nicky, Creux, Stacey, Harmer
openaire   +2 more sources

Circadian rhythm dysfunction in bipolar affective disorder

open access: yesEuropean Psychiatry, 2021
Introduction Sleep is paramount in bipolar affective disorder and sleep disturbance can be a trigger or initial manifestation of an episode of illness.
M.T. Valadas, R. Mota Freitas
doaj   +1 more source

Research progress on relationships of circadian rhythm with thyroid function and diseases

open access: yes环境与职业医学, 2022
Circadian rhythm is a phenomenon of diurnal changes in life activities formed by a transcription-translation feedback loop of biological clock genes affected by external environmental conditions.
Yuping YANG   +6 more
doaj   +1 more source

Cosinor-rhythmometry for 24-h urinary sodium, potassium, creatinine excretion in the Chinese adult population

open access: yesChinese Medical Journal, 2021
. Background:. The low accuracy of equations predicting 24-h urinary sodium excretion using a single spot urine sample contributed to the misclassification of individual sodium intake levels.
Ya-Guang Peng   +7 more
doaj   +1 more source

Modulatory effects in circadian-related diseases via the reciprocity of tea polyphenols and intestinal microbiota

open access: yesFood Science and Human Wellness, 2022
Tea is a widespread functional plant resource. Phytochemicals such as tea polyphenols (TP) can interact with the intestinal flora and participate in regulating the expression and rhythm of biological clock genes.
Ruonan Yan, Chi-Tang Ho, Xin Zhang
doaj   +1 more source

Circadian Rhythms in Immunity [PDF]

open access: yesCurrent Allergy and Asthma Reports, 2020
This review is focused on the existing evidence for circadian control of innate and adaptive immune responses to provide a framework for evaluating the contributions of diurnal rhythms to control of infections and pathogenesis of disease.Circadian rhythms driven by cell-autonomous biological clocks are central to innate and adaptive immune responses ...
openaire   +2 more sources

Aging and circadian rhythms [PDF]

open access: yesCurrent Opinion in Insect Science, 2015
Circadian clocks are cell-autonomous molecular feedback loops that generate daily rhythms in gene expression, cellular functions, physiological processes and behavior. The mechanisms of circadian clocks are well understood in young fruit flies Drosophila melanogaster, but less is known about how circadian system changes during organismal aging. Similar
Jadwiga M, Giebultowicz, Dani M, Long
openaire   +2 more sources

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