Results 51 to 60 of about 36,798 (270)

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

A hypothetic aging pathway from skin to hypothalamic suprachiasmatic nucleus via slow wave sleep

Sleep Science, 2016
Many observations have demonstrated that the hypothalamic neuroendocrine change determines the chronological sequence of aging in mammals. However, it remains uncertain on the mechanism to account for the hypothalamic aging manifestations.
Zi-Jian Cai
doaj   +1 more source

Genetic disruption of the core circadian clock impairs hippocampus-dependent memory [PDF]

, 2014
Perturbing the circadian system by electrolytically lesioning the suprachiasmatic nucleus (SCN) or varying the environmental light:dark schedule impairs memory, suggesting that memory depends on the circadian system.
Chen, Xuanmao, Phan, Trongha X., Saraf, Amit, Storm, Daniel R., Wardlaw, Sarah M.   +4 more
core   +2 more sources

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

Circadian regulation of reproduction: From gamete to offspring [PDF]

, 2013
P01326625; Grants: GNT0519315Few challenges are more critical to the survival of a species than reproduction. To ensure reproductive success, myriad aspects of physiology and behaviour need to be tightly orchestrated within the animal, as well as timed ...
Boden, M., Kennaway, D., Varcoe, T.
core   +1 more source

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

Cholecystokinin receptor type A are involved in the circadian rhythm of the mouse retina

Heliyon
The retina is the only organ projecting external light to the suprachiasmatic nucleus. Cholecystokinin receptor type A (Cckar/Cckar) is one of the essential factors for light reception in retinal cells. As there was a lack of literature on the matter, we
Yusuke Yamakawa, Yuya Tsurudome, Masaki Tamada, Yuki Tsuchimochi, Yuya Umeda, Yuya Yoshida, Daisuke Kobayashi, Takehiro Kawashiri, Toshio Kubota, Naoya Matsunaga, Takao Shimazoe   +10 more
doaj   +1 more source

Output from VIP cells of the mammalian central clock regulates daily physiological rhythms [PDF]

, 2020
The suprachiasmatic nucleus (SCN) circadian clock is critical for optimising daily cycles in mammalian physiology and behaviour. The roles of the various SCN cell types in communicating timing information to downstream physiological systems remain ...
A Kalsbeek, A Kalsbeek, A Kalsbeek, A Schroeder, AC West, AG Watts, AG Watts, AH Cheng, AJ Harmar, AT Hughes, C Gizowski, C Mazuski, CA Feillet, CS Colwell, DA Bechtold, DF Manvich, DH Loh, DJ Cutler, EE Abrahamson, ES Lein, ES Maywood, FK Stephan, H Taniguchi, H Wakamatsu, HT VanderLeest, HT vanderLeest, I Kallo, IT Lee, J Fahrenkrug, J Fan, J Hannibal, J Schaap, JA Evans, JA Evans, JE Quintero, JL Gomez, JR Jones, JR Jones, K Tanaka, L Hanna, L Madisen, L Mei, LD Alexander, LP Morin, LP Morin, M Howarth, M Mieda, MC Garnica-Siqueira, MJ Krashes, MR Ralph, MS Jasper, N Nunn, N Yamaguchi, P Indic, R Enoki, RL Spencer, RM Buijs, RY Moore, S Itoh, S Paul, SJ Aton, SK Lee, T Ikeno, T Kalamatianos, TJ Nakamura, TM Brown, TM Brown, TM Brown, TM Brown, TO Hermanstyne, WD Todd   +70 more
core   +1 more source

An Automated Organotypic SCN Culture System Revealing Novel Insights into VIP Regulation of Circadian Rhythm

Advanced Science, EarlyView.
An Automated ex vivo culture system BaSIC, tailored for SCN slices and cell culture, which automates medium exchange and ensures a stable internal environment is developed. BaSIC enables real‐time observation of tissue/cell responses to diverse but programmed stimuli.
Kui Han, Meimei Liao, Jingpeng Zhang, Ruoyu Zhong, Long Mei, Dapeng Ju, Eric Erquan Zhang, Yanyi Huang   +7 more
wiley   +1 more source

Loss of ZBTB20 impairs circadian output and leads to unimodal behavioral rhythms

eLife, 2016
Many animals display morning and evening bimodal activities in the day/night cycle. However, little is known regarding the potential components involved in the regulation of bimodal behavioral rhythms in mammals.
Zhipeng Qu, Hai Zhang, Moli Huang, Guangsen Shi, Zhiwei Liu, Pancheng Xie, Hui Li, Wei Wang, Guoqiang Xu, Yang Zhang, Ling Yang, Guocun Huang, Joseph S Takahashi, Weiping J Zhang, Ying Xu   +14 more
doaj   +1 more source