Results 21 to 30 of about 346,110 (185)

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

Frontiers 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, Xiao-Qian Chen, Xiu-Min Jiang, Qing-Xiang Zheng, Qing-Xiang Zheng, Hai-Wei Wang, Heng Xue, Yu-Qing Pan, Yan-Ping Liao, Xiao-Xia Gao   +9 more
doaj   +1 more source

Circadian Organization in Hemimetabolous Insects [PDF]

, 2004
The circadian system of hemimetabolous insects is reviewed in respect to the locus of the circadian clock and multioscillatory organization. Because of relatively easy access to the nervous system, the neuronal organization of the clock system in ...
Abdelsalam, Salaheldin, Tomioka, Kenji
core   +1 more source

Circadian rhythms, cardiac arrhythmias and sudden death

Frontiers 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

Clockwork green – the circadian oscillator in Arabidopsis [PDF]

, 2006
Schöning JC, Streitner C, Staiger D. Clockwork green – the circadian oscillator in Arabidopsis. Biological Rhythm Research. 2006;37(4):335-352.Although rhythmic leaf movement in a higher plant was the first physiological process recognised to be under ...
Schöning, Jan C., Staiger, Dorothee, Streitner, Corinna   +2 more
core   +1 more source

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

Frontiers 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, Craig Gouldthorpe, Jenny Power, Jenny Power, Andrew Davies, Andrew Davies, Andrew Davies   +6 more
doaj   +1 more source

Human Circadian Phase Estimation from Signals Collected in Ambulatory Conditions Using an Autoregressive Model [PDF]

, 2013
Phase estimation of the human circadian rhythm is a topic that has been explored using various modeling approaches. The current models range from physiological to mathematical, all attempting to estimate the circadian phase from different physiological ...
Gil, Enrique A, Møst, Els I S, Beersma, Domien G M, Beersma, Domien G. M., Møst, Els I.S., Aubert, Xavier L, Gil, Enrique A.,, Aubert, Xavier L.,, Aubert, Xavier L., Beersma, Domien G.M.,, Most, Els I. S., Gil, Enrique A., Møst, Els I.S.,   +12 more
core   +1 more source

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

Journal 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, Iris Brunner, Jørgen Feldbæk Nielsen, Asger Roer Pedersen   +3 more
doaj   +1 more source

Voluntary exercise can strengthen the circadian system in aged mice [PDF]

, 2013
Consistent daily rhythms are important to healthy aging according to studies linking disrupted circadian rhythms with negative health impacts. We studied the effects of age and exercise on baseline circadian rhythms and on the circadian system's ability ...
I. Song, Lall, Gurprit S., Biello, S.M., Harrington, Mary E., S. M. Biello, Song, I., M. E. Harrington, Queenan, H., Harrington, M.E., H. Queenan, Lall, G. S., Biello, S. M., Zimmerman, E., Molyneux, P. C., Molyneux, P.C., T. L. Leise, Leise, T.L., E. Zimmerman, G. S. Lall, P. C. Molyneux, Lall, G.S., Leise, T. L.   +21 more
core   +1 more source

S20098 Affects the Free-Running Rhythms of Body Temperature and Activity and Decreases Light-Induced Phase Delays of Circadian Rhythms of the Rat [PDF]

, 2001
Mammalian endogenous circadian rhythms are entrained to the environmental day-night cycle by light exposure. Melatonin is involved in this entrainment by signaling the day-night information to the endogenous circadian pacemaker. Furthermore, melatonin is
Mocaër, Elisabeth,, Koolhaas, Jaap M.,, Mocaer, E., Strubbe, JH, Koolhaas, JM, Tuma, Jolanda,, Strubbe, Jan H.,, Strubbe, J.H., Tuma, J., Koolhaas, J.M., Tuma, J, Mocaer, E   +11 more
core   +2 more sources

Circadian Rhythms in Plants [PDF]

Cold 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