Results 21 to 30 of about 72,064 (292)

Circadian and Metabolic Effects of Light: Implications in Weight Homeostasis and Health [PDF]

open access: yes, 2017
Daily interactions between the hypothalamic circadian clock at the suprachiasmatic nucleus (SCN) and peripheral circadian oscillators regulate physiology and metabolism to set temporal variations in homeostatic regulation.
Diego A. Golombek   +6 more
core   +2 more sources

Towards Cancer Theory – Circadian and 11-Day Biological Clocks [PDF]

open access: yesMiddle East Journal of Cancer, 2021
Background: In the current study, we used the information-hierarchical system approach to examine human metabolism. Metabolism hierarchical structure, beginning from enzyme level, is controlled by the established information principle and divine section ...
Yuri Kirsta, Dmitry Kirsta
doaj   +1 more source

When the sun never sets: diverse activity rhythms under continuous daylight in free-living arctic-breeding birds [PDF]

open access: yes, 2013
Circadian clocks are centrally involved in the regulation of daily behavioural and physiological processes. These clocks are synchronized to the 24-hour day by external cues (Zeitgeber), the most important of which is the light-dark cycle.
Helm, B.   +5 more
core   +1 more source

Birth weight and maternal energy status during pregnancy as predictors of epigenetic age acceleration in young adults from metropolitan Cebu, Philippines

open access: yesEpigenetics, 2022
Epigenetic clocks quantify regular changes in DNA methylation that occur with age, or in relation to biomarkers of ageing, and are strong predictors of morbidity and mortality.
Christopher W. Kuzawa   +9 more
doaj   +1 more source

New Insights Into Cancer Chronotherapies

open access: yesFrontiers in Pharmacology, 2021
Circadian clocks participate in the coordination of various metabolic and biological activities to maintain homeostasis. Disturbances in the circadian rhythm and cancers are closely related.
Jingxuan Zhou   +10 more
doaj   +1 more source

Liberating clocks: Developing a critical horology to rethink the potential of clock time [PDF]

open access: yes, 2017
Across a wide range of cultural forms, including philosophy, cultural theory, literature and art, the figure of the clock has drawn suspicion, censure and outright hostility.
Bastian, Michelle
core   +2 more sources

Novel Epigenetic Clock Biomarkers of Age-Related Macular Degeneration

open access: yesFrontiers in Medicine, 2022
Age-Related Macular Degeneration (AMD) is a bilateral ocular condition resulting in irreversible vision impairment caused by the progressive loss of photoreceptors in the macula, a region at the center of the retina. The progressive loss of photoreceptor
Saurav Mallik   +5 more
doaj   +1 more source

What season suits you best? Seasonal light changes and cyanobacterial competition [PDF]

open access: yes, 2015
Nearly all living organisms, including some bacterial species, exhibit biological processes with a period of about 24 h called circadian (from the Latin circa, about and dies, day) rhythms.
Cascallares, Maria Guadalupe   +1 more
core   +1 more source

Making Memories: Why Time Matters [PDF]

open access: yes, 2018
In the last decade advances in human neuroscience have identified the critical importance of time in creating long-term memories. Circadian neuroscience has established biological time functions via cellular clocks regulated by photosensitive retinal ...
Evans, M. D. R.   +2 more
core   +2 more sources

Circadian and Geotactic Behaviors: Genetic Pleiotropy in Drosophila Melanogaster

open access: yesJournal of Circadian Rhythms, 2016
Data presented in this paper test the hypotheses that Hirsch’s positive geotaxis ('Lo') and negative geotaxis ('Hi5') strains of Drosophila melanogaster (fruit fly) differ in length of the free-running circadian activity period (tau) as well as adult ...
Dale L Clayton
doaj   +1 more source

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