Results 141 to 150 of about 347,727 (386)
American Journal of Medical Genetics Part C: Seminars in Medical Genetics, EarlyView.ABSTRACT Patients with Turner Syndrome (TS) and those exposed to high concentrations of glucocorticoids have a number of characteristics in common, including an increased risk of cardiovascular disease. Pediatric TS patients underwent studies of salivary cortisol (SC) and cortisone (SCn), body composition, continuous glucose monitoring, vascular ...
Lily Jones +6 more
wiley +1 more source
Seasonality and Light Phase-Resetting in the Mammalian Circadian Rhythm [PDF]
arXiv, 2019 We study the impact of light on the mammalian circadian system using the theory of phase response curves. Using a recently developed ansatz we derive a low-dimensional macroscopic model for the core circadian clock in mammals. Significantly, the variables and parameters in our model have physiological interpretations and may be compared with ...
arxiv
The Plant Circadian Clock: From a Simple Timekeeper to a Complex Developmental Manager.
Cold Spring Harbor Perspectives in Biology, 2016 The plant circadian clock allows organisms to anticipate the predictable changes in the environment by adjusting their developmental and physiological traits. In the last few years, it was determined that responses known to be regulated by the oscillator
Sabrina E Sanchez, S. Kay
semanticscholar +1 more source
Alterations in gut microbiota and metabolites contribute to postoperative sleep disturbances
Animal Models and Experimental Medicine, EarlyView.In this study, we classified postoperative patients into poor sleepers (PS) and good sleepers (GS) based on the bispectral index (BIS), and transplanted their fecal microbiota to pseudo‐germ‐free rats to analyze the sleep changes in rats and the potential mechanism.
Hui Zhong +7 more
wiley +1 more source
Journal of Pharmacological Sciences, 2007 The cardiovascular diseases are closely related to circadian rhythm, which is under the control of the biological clock. Clock genes show circadian oscillation not only in the suprachiasmatic nucleus but also in peripheral tissues, suggesting the ...
Koji Maemura +2 more
doaj
Robust entrainment of circadian oscillators requires specific phase response curves [PDF]
, 2010 The circadian clocks keeping time of day in many living organisms rely on self-sustained biochemical oscillations which can be entrained by external cues, such as light, to the 24-hour cycle induced by Earth rotation. However, environmental cues are unreliable due to the variability of habitats, weather conditions or cue-sensing mechanisms among ...
arxiv +1 more source
Into the Evening: Complex Interactions in the Arabidopsis circadian clock
bioRxiv, 2016 In Arabidopsis thaliana, an assembly of proteins named the evening complex (EC) has been established as an essential component of the circadian clock with conserved functions in regulating plant growth and development.
He Huang, Dmitri A. Nusinow
semanticscholar +1 more source
A Colorful Model of the Circadian Clock [PDF]
Cell, 2006 The migration of the colorful monarch butterfly provides biologists with a unique model system with which to study the cellular and molecular mechanisms underlying a sophisticated circadian clock. The monarch circadian clock is involved in the induction of the migratory state and navigation over long distances, using the sun as a compass.
openaire +4 more sources
The Anatomical Record, EarlyView.Abstract Hibernation induces significant molecular and cellular adaptations in the retina to maintain function under reduced metabolic conditions. This study aimed to investigate the expression of neuronal, synaptic, and glial markers in the retina of Spermophilus xanthoprymnus during pre‐hibernation and hibernation periods using immunohistochemical ...
Mehmet Özbek +5 more
wiley +1 more source
Stem cells and the circadian clock
Developmental Biology, 2017 The circadian timing system is a complex biological network of interacting circadian clocks that regulates 24 h rhythms of behavioral and physiological processes. One intriguing observation is that stem cell homeostasis is subject to circadian clock regulation.
Weger, Meltem +4 more
openaire +6 more sources