Results 71 to 80 of about 1,844,801 (289)

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

FEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo, Catherine S. Palmer, Jacqueline M. Kimmey   +2 more
wiley   +1 more source

Does the expensive brain hypothesis apply to amphibians and reptiles?

BMC Ecology and Evolution, 2023
Vertebrate brains show extensive variation in relative size. The expensive brain hypothesis argues that one important source of this variation is linked to a species’ ability to generate the energy required to sustain the brain, especially during periods
Zitan Song, Michael Griesser, Caroline Schuppli, Carel P. van Schaik   +3 more
doaj   +1 more source

The role and implications of mammalian cellular circadian entrainment

FEBS Letters, EarlyView.
At their most fundamental level, mammalian circadian rhythms occur inside every individual cell. To tell the correct time, cells must align (or ‘entrain’) their circadian rhythm to the external environment. In this review, we highlight how cells entrain to the major circadian cues of light, feeding and temperature, and the implications this has for our
Priya Crosby
wiley   +1 more source

Reading the Neural Code: What do Spikes Mean for Behavior? [PDF]

, 2007
The present study reveals the existence of an intrinsic spatial code within neuronal spikes that predicts behavior. As rats learnt a T-maze procedural task, simultaneous changes in temporal occurrence of spikes and spike directivity are evidenced in ...
Dorian Aur, Mandar Jog
core   +2 more sources

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

A novel method to allow noninvasive, longitudinal imaging of the murine immune system in vivo [PDF]

, 2012
In vivo imaging has revolutionized understanding of the spatiotemporal complexity that subserves the generation of successful effector and regulatory immune responses.
Andrea J. White, Butcher, Cardillo, Carragher, Catherine M. Rush, Celli, de Boer, Eric J. Jenkinson, Farr, Fulmer, Gianluca Grassia, Girard, Graham Anderson, Gunn, Hillebrands, Huang, Iain B. McInnes, Itano, James M. Brewer, Karen J. Bryson, Kono, Lane, Leishman, Luther, McNagny, Millington, Pasquale Maffia, Paul Garside, Proudman, Robert A. Benson, Schneider, Smith, Stutzmann, Sumen, Tammela, Tomei, Vivienne B. Gibson, White, Worbs, Yoshida, Zinselmeyer   +40 more
core   +2 more sources

Interplay between circadian and other transcription factors—Implications for cycling transcriptome reprogramming

FEBS Letters, EarlyView.
This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley   +1 more source

Fairly flexible: brown-tufted capuchins and a squirrel monkey adjust their motor responses in a foraging task [PDF]

PeerJ
Prior research on non-human primates has produced contradictory results regarding behavioral flexibility and habit formation. Most observational studies of wild primates show flexibility in foraging behavior, whereas experimental data suggest captive ...
Renee C. Russell, Colleen M. Buckley, Carly B. Rovner, Peter G. Judge   +3 more
doaj   +2 more sources

Sensitive plant (Mimosa pudica) hiding time depends on individual and state. [PDF]

, 2017
The decisions animals make to adjust their antipredator behavior to rapidly changing conditions have been well studied. Inducible defenses in plants are an antipredator behavior that acts on a longer time scale, but sensitive plants, Mimosa pudica, have ...
Blumstein, Daniel T, Gehris, Connor, Reed-Guy, Sarah, Shi, Meng   +3 more
core   +1 more source

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