Results 41 to 50 of about 63,496 (329)

Assaying locomotor activity to study circadian rhythms and sleep parameters in Drosophila. [PDF]

, 2010
Most life forms exhibit daily rhythms in cellular, physiological and behavioral phenomena that are driven by endogenous circadian (≡24 hr) pacemakers or clocks. Malfunctions in the human circadian system are associated with numerous diseases or disorders.
Chiu, Joanna C, Edery, Isaac, Low, Kwang Huei, Pike, Douglas H, Yildirim, Evrim   +4 more
core   +3 more sources

Sex Differences in Insomnia and Circadian Rhythm Disorders: A Systematic Review

Medicina
Insomnia and circadian rhythm disorders are increasingly common in modern society and lead to significant challenges for people’s health and well-being. Some studies suggests that men and women differ in neurohormonal secretion, biological processes, and
Evelina Pajėdienė, Viltė Urbonavičiūtė, Vita Ramanauskaitė, Lukas Strazdauskas, Ambra Stefani   +4 more
doaj   +1 more source

Circadian Rhythm Abnormalities in Parkinson's Disease from Humans to Flies and Back [PDF]

, 2018
Clinical and research studies have suggested a link between Parkinson\u2019s disease (PD) and alterations in the circadian clock. Drosophila melanogaster may represent a useful model to study the relationship between the circadian clock and PD.
Bisaglia, Marco, De Lazzari, Federica, Sandrelli, Federica, Zordan, Mauro Agostino   +3 more
core   +1 more source

Molecular bases of circadian magnesium rhythms across eukaryotes

FEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

Circadian rhythms and hormonal homeostasis: Pathophysiological implications [PDF]

, 2017
Over recent years, a deeper comprehension of the molecular mechanisms that control biological clocks and circadian rhythms has been achieved. In fact, many studies have contributed to unravelling the importance of the molecular clock for the regulation ...
Bruscalupi, Giovannella, Gnocchi, Davide
core   +2 more sources

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

FEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source

Time after time – circadian clocks through the lens of oscillator theory

FEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo, Carolin Ector, Hanspeter Herzel   +2 more
wiley   +1 more source

Melatonin use in sleep disorders [PDF]

, 1997
Melatonin is a widely publicized 'magical drug'. Claims of its use include regulation of sleep, circadian rhythm, mood, immune system and reproduction, anti-aging, protection against cancer, and treatment of AIDS. This article reviews the evidence of its
Chung, KF
core  

Associations of Sleep and Shift Work with Osteoarthritis Risk

Arthritis Care &Research, Accepted Article.
Objective Daily rhythms may be critical for maintaining homeostasis of joint tissues. We aimed to investigate the relationships between circadian clock disruption, sleep, and osteoarthritis (OA) risk in humans. Methods In the UK Biobank, a prospective 500,000‐person cohort, we evaluated associations between sleep duration, sleeplessness/insomnia, and ...
Elizabeth L. Yanik, Abigail Bridgeman, Erik D. Herzog, Vy Pham, Bradley A. Evanoff, Farshid Guilak   +5 more
wiley   +1 more source

Therapeutic potential of ginsenosides in circadian rhythm-based skin disorders

Journal of Ginseng Research
The circadian rhythm, a biological system all living organisms possess, has become increasingly important as sleep patterns become more irregular. Circadian rhythms affect various cell types (fibroblasts, fat cells, muscles, etc.) and organs (the liver ...
Heejun Ha, Heeseon Shin, Sukhyun Min, Natasha Christabella Sutopo, Khamit Yerkesh, Eunsun Jung, Minkyung Song, Jae Youl Cho, Jongsung Lee   +8 more
doaj   +1 more source