The mammalian circadian clock and its entrainment by stress and exercise

Y Tahara, S Aoyama, S Shibata - The Journal of Physiological Sciences, 2017 - Springer
The mammalian circadian clock regulates day–night fluctuations in various physiological
processes. The circadian clock consists of the central clock in the suprachiasmatic nucleus …

Systems biology of mammalian circadian clocks

H Ukai, HR Ueda - Annual review of physiology, 2010 - annualreviews.org
Systems biology is a natural extension of molecular biology; it can be defined as biology
after identification of key gene (s). Systems-biological research is a multistage process …

[HTML][HTML] Delay in feedback repression by cryptochrome 1 is required for circadian clock function

M Ukai-Tadenuma, RG Yamada, H Xu, JA Ripperger… - Cell, 2011 - cell.com
Direct evidence for the requirement of delay in feedback repression in the mammalian
circadian clock has been elusive. Cryptochrome 1 (Cry1), an essential clock component …

CKIε/δ-dependent phosphorylation is a temperature-insensitive, period-determining process in the mammalian circadian clock

Y Isojima, M Nakajima, H Ukai… - Proceedings of the …, 2009 - National Acad Sciences
A striking feature of the circadian clock is its flexible yet robust response to various
environmental conditions. To analyze the biochemical processes underlying this flexible-yet …

Entrainment of the mouse circadian clock by sub-acute physical and psychological stress

Y Tahara, T Shiraishi, Y Kikuchi, A Haraguchi… - Scientific reports, 2015 - nature.com
The effects of acute stress on the peripheral circadian system are not well understood in
vivo. Here, we show that sub-acute stress caused by restraint or social defeat potently …

Distinct phosphorylation states of mammalian CaMKIIβ control the induction and maintenance of sleep

D Tone, KL Ode, Q Zhang, H Fujishima… - PLoS …, 2022 - journals.plos.org
The reduced sleep duration previously observed in Camk2b knockout mice revealed a role
for Ca2+/calmodulin-dependent protein kinase II (CaMKII) β as a sleep-promoting kinase …

A neuropeptide speeds circadian entrainment by reducing intercellular synchrony

S An, R Harang, K Meeker… - Proceedings of the …, 2013 - National Acad Sciences
Shift work or transmeridian travel can desynchronize the body's circadian rhythms from local
light–dark cycles. The mammalian suprachiasmatic nucleus (SCN) generates and entrains …

[HTML][HTML] NPAS2 and PER2 are linked to risk factors of the metabolic syndrome

A Englund, L Kovanen, ST Saarikoski, J Haukka… - Journal of Circadian …, 2009 - Springer
Background Mammalian circadian clocks control multiple physiological events. The principal
circadian clock generates seasonal variations in behavior as well. Seasonality elevates the …

Temperature-sensitive substrate and product binding underlie temperature-compensated phosphorylation in the clock

Y Shinohara, YM Koyama, M Ukai-Tadenuma… - Molecular cell, 2017 - cell.com
Temperature compensation is a striking feature of the circadian clock. Here we investigate
biochemical mechanisms underlying temperature-compensated, CKIδ-dependent multi-site …

Circadian clock gene polymorphisms in alcohol use disorders and alcohol consumption

L Kovanen, ST Saarikoski, J Haukka… - Alcohol & …, 2010 - academic.oup.com
Aims: Circadian clock genes are involved in the development of drug-induced behaviors
and regulate neurotransmission pathways in addiction. Our aim was to study whether …