Results 11 to 20 of about 93,323 (251)

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

Circadian rest-activity rhythms predict cognitive function in early Parkinson's disease independently of sleep [PDF]

open access: yes, 2018
BACKGROUND: Cognitive impairment is a common and debilitating symptom of Parkinson's disease (PD), and its etiology is likely multifactorial. One candidate mechanism is circadian disruption. Although there is evidence of circadian abnormalities in PD, no
Cronin-Golomb, Alice   +4 more
core   +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

Genetic basis of human circadian rhythm disorders. [PDF]

open access: yes, 2013
Circadian rhythm disorders constitute a group of phenotypes that usually present as altered sleep-wake schedules. Until a human genetics approach was applied to investigate these traits, the genetic components regulating human circadian rhythm and sleep ...
Fu, Ying-Hui   +3 more
core   +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

Effects of environmental enrichment on behavioral responses to novelty, learning, and memory, and the circadian rhythm in cortisol in growing pigs [PDF]

open access: yes, 2000
Previously we showed that pigs reared in an enriched environment had higher baseline salivary cortisol concentrations during the light period than pigs reared under barren conditions.
Blokhuis, Harry J.,   +6 more
core   +1 more source

Circadian Rhythm Abnormalities [PDF]

open access: yesContinuum, 2013
This article reviews the recent advances in understanding of the fundamental properties of circadian rhythms and discusses the clinical features, diagnosis, and treatment of circadian rhythm sleep disorders (CRSDs).Recent evidence strongly points to the ubiquitous influence of circadian timing in nearly all physiologic functions.
Phyllis C, Zee   +2 more
openaire   +2 more sources

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

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

Rhythms of Locomotion Expressed by Limulus polyphemus, the American Horseshoe Crab: II. Relationship to Circadian Rhythms of Visual Sensitivity [PDF]

open access: yes, 2008
In the laboratory, horseshoe crabs express a circadian rhythm of visual sensitivity as well as daily and circatidal rhythms of locomotion. The major goal of this investigation was to determine whether the circadian clock underlying changes in visual ...
Bedford, Lisa   +2 more
core   +3 more sources

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