Results 11 to 20 of about 183,356 (348)

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

Prevalence and risk factors of sub-health and circadian rhythm disorder of cortisol, melatonin, and temperature among Chinese midwives

open access: yesFrontiers in Public Health, 2023
ObjectiveThis study aimed to explore the influencing factors of sub-health and circadian rhythm disorder among midwives and whether circadian rhythm disorder was associated with sub-health.MethodsA multi-center cross-sectional study was conducted among ...
Xiao-Qian Chen   +9 more
doaj   +1 more source

Circadian rhythms and the liver

open access: yesLiver International, 2023
AbstractThis narrative review briefly describes the mammalian circadian timing system, the specific features of the liver clock, also by comparison with other peripheral clocks, the role of the liver clock in the preparation of food intake, and its relationship with energy metabolism.
Costa, Rodolfo   +4 more
openaire   +3 more sources

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 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

Serotonin and circadian rhythms. [PDF]

open access: yesPsychology & Neuroscience, 2010
All mammal behaviors and functions exhibit synchronization with environmental rhythms. This is accomplished through an internal mechanism that generates and modulates biological rhythms. The circadian timing system, responsible for this process, is formed by connected neural structures.
Pontes, André Luiz Bezerra de   +7 more
openaire   +5 more sources

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

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

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

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