Results 71 to 80 of about 136,810 (312)

The neurobiology of circadian rhythms [PDF]

Current Opinion in Pulmonary Medicine, 2009
There is growing awareness of the importance of circadian rhythmicity in various research fields. Exciting developments are ongoing in the field of circadian neurobiology linked to sleep, food intake, and memory. With the current knowledge of critical 'clock genes' (genes found to be involved in the generation of circadian rhythms) and novel techniques
Eddy A, Van der Zee, Gretha J, Boersma, Roelof A, Hut   +2 more
openaire   +2 more sources

Ecological Adaptation Mechanisms Underlying Successful Plant Reproduction

Advanced Science, EarlyView.
During floral induction, various environmental and endogenous signals converge to regulate the florigen protein, which is transported from leaves to the SAM to initiate flowering. Within the SAM, a complex network of receptor kinases and small peptides orchestrates floral development with high spatiotemporal precision.
Hang Zhao, Shenghui Huo, Yue Xing, Shuxin Zhang, Guilin Li, Yihui Liu, Chongyang Jin, Fuguang Li, Xiaoyang Ge   +8 more
wiley   +1 more source

Serotonin and corticosterone rhythms in mice exposed to cigarette smoke and in patients with COPD:implication for COPD-associated neuropathogenesis

, 2014
The circadian timing system controls daily rhythms of physiology and behavior, and disruption of clock function can trigger stressful life events. Daily exposure to cigarette smoke (CS) can lead to alteration in diverse biological and physiological ...
Hongwei Yao, Lyda, Elizabeth, Sime, Patricia J, Patricia J Sime, Michael T Sellix, Isaac K Sundar, Sundar Isaac K., Yao Hongwei, Yao, Hongwei, Sellix Michael T., Sime Patricia J., Rahman Irfan, Sundar, Isaac K, Huang, Yadi, Yadi Huang, Rahman, Irfan, Irfan Rahman, Lyda Elizabeth, Elizabeth Lyda, Huang Yadi, Sellix, Michael T   +20 more
core   +1 more source

Quantitative analysis of regulatory flexibility under changing environmental conditions [PDF]

, 2010
The circadian clock controls 24-h rhythms in many biological processes, allowing appropriate timing of biological rhythms relative to dawn and dusk. Known clock circuits include multiple, interlocked feedback loops.
Andrew J Millar, Paul E Brown, David A Rand, Kirsten Knox, Knox, Kirsten, Thomson, Adrian W, Akman, Ozgur E, Lumsden, Peter J, Millar, A. J., Ozgur E Akman, Edwards, Kieron D, Brown, Paul E., Rand, D. A., Alexandra Pokhilko, Edwards, Kieron D., Thomson, Adrian W., Rand, David A, Lumsden, P. J., Nagy, Ferenc, Laszlo Kozma‐Bognar, Ra Pokhilko, Adrian W Thomson, Peter J Lumsden, Akman, Ozgur E., Kozma-Bognar, Laszlo, Kieron D Edwards, Ferenc Nagy, Lumsden, Peter J., Pokhilko, Alexandra, Brown, Paul E, Rand, David A., Millar, Andrew J; id_orcid, David A R, Millar, Andrew J., Laszlo Kozma-bognar   +34 more
core   +1 more source

An Activity‐Dependent NEPAS–PTX3 Axis Links Neurovascular and Myelin Deficits to Cognitive Impairment

Advanced Science, EarlyView.
An activity‐dependent pathway links prefrontal circuit hypoactivity to cognitive impairment. Reduced PVA–mPFC activity upregulates NEPAS, which suppresses PTX3 secretion, leading to impaired angiogenesis, myelin deficits, and memory decline. Rescue is achieved by NEPAS knockdown or chemogenetic circuit activation.
Boya Hu, Zifei Chen, Bingmei Sun, Jiale Gao, Jiale Xu, Xiaochun Guo, Fenfei Gao, Zhongsi Wang, Jie Wu, Xiaoyu Ji, Peipei Liu, Bing Huang   +11 more
wiley   +1 more source

Understanding Biological Mechanisms: Using Illustrations from Circadian Rhythm Research [PDF]

, 2012
In many fields of biology, researchers explain a phenomenon by characterizing the responsible mechanism. This requires identifying the candidate mechanism, decomposing it into its parts and operations, recomposing it so as to understand how it is ...
Bechtel, William
core  

Tetrahedral DNA Nanostructure‐Based Biomimetic Nanovesicles Attenuate Sepsis‐Associated ARDS by Suppressing Glycolysis via the BMAL1/PFKFB3 Axis

Advanced Science, EarlyView.
Upon inhalation, RM@TNT could persist long‐term in the diseased lungs, while undergoing disintegration to release TNT specifically within the ROS‐rich pathological microenvironments of SA‐ARDS. The released TNT was then precisely delivered to AMs via Tuftsin, where it released Nob intracellularly to activate BMAL1 expression, thus inhibiting AM ...
Yunlong Zhang, Bin Li, Zhijin Fan, Yan Yan, Fei Ma, Changting He, Shiping Liu, Mingliang Pan, Zhou Pan, Huijuan Wang, Xinting Fu, Jiamei Wang, Yue Jia, Qin Gu, Duo Jiang, Xueting Liu, Bohua Ren, Qinqin Wang, Yuehua Hei, Han Duan, Yanqiu Wu, Zihui Wei, Liying Zhan, Yuhui Liao   +23 more
wiley   +1 more source

Circadian and homeostatic sleep regulation in humans : effects of age and monochromatic light [PDF]

, 2006
The first part of this thesis deals with age-related modifications in the circadian and homeostatic sleep regulation, whereas in the second part, the effects of an evening exposure to monochromatic light on subsequent sleep architecture and sleep ...
Münch, Mirjam
core   +1 more source

Synchronization‐Dissipation in the Cardiorespiratory System

Advanced Science, EarlyView.
By modeling central nervous coupling and viscoelastic interactions in the cardiorespiratory system we show that synchronization produces a 10% gain in cardiac efficiency in humans. It is surmised that respiratory sinus arrhythmia improves cardiac pumping efficiency by reducing dynamic stress and power dissipation in the pulmonary vasculature.
Joshua R. Border, Alain Nogaret, Andrew Lefevre, Vishal Jain   +3 more
wiley   +1 more source

Epilepsy Occurrence and Circadian Rhythm: A Bibliometrics Study and Visualization Analysis via CiteSpace

Frontiers in Neurology, 2020
Objective: This study aimed to review the research status and to demonstrate the hot spots and frontiers of epilepsy and circadian rhythm via CiteSpace.Method: We searched Web of Science (WoS) for studies related to epilepsy and circadian rhythm from ...
Dongling Zhong, Dongling Zhong, Shanxia Luo, Linli Zheng, Yonggang Zhang, Rongjiang Jin   +5 more
doaj   +1 more source