Results 1 to 10 of about 64,785 (232)
Biological clocks in theory and experiments [PDF]
BMC Bioinformatics, 2005 Eukaryotes and some prokaryotes have adapted to the 24 h day/night cycle by evolving circadian clocks. The circadian clock now controls 24-hour rhythms in very many aspects of metabolism, physiology and behaviour. Day-length (photoperiod) measurement depends on the circadian clock, so the 24 h clock mechanism also governs seasonal rhythms, such as ...
Millar, Andrew
core +7 more sources
Biological clocks: riding the tides. [PDF]
Curr Biol, 2013 Animals with habitats in the intertidal zone often display biological rhythms that coordinate with both the tidal and the daily environmental cycles. Two recent studies show that the molecular components of the biological clocks mediating tidal rhythms are likely different from the phylogenetically conserved components that mediate circadian (daily ...
de la Iglesia HO, Johnson CH.
europepmc +5 more sources
Evaluation of pediatric epigenetic clocks across multiple tissues [PDF]
, 2023 BackgroundEpigenetic clocks are promising tools for assessing biological age. We assessed the accuracy of pediatric epigenetic clocks in gestational and chronological age determination.ResultsOur study used data from seven tissue types on three DNA ...
Aris, Izzuddin M. +27 more
core +2 more sources
Proceedings of the National Academy of Sciences, 1999 Circadian rhythms describe biological phenomena that oscillate with an ≈24-hour cycle. These rhythms include blood pressure, body temperature, hormone levels, the number of immune cells in blood, and the sleep-wake cycle. In this paper, we will focus on common genes between species that are responsible for determining the circadian behavior ...
Ravi Allada, Maki Kaneko, Norio Ishida
openaire +3 more sources
A chiming biological clock? [PDF]
Current Biology, 1997 Microscopists are in the unique position of being able to encapsulate great science with a single image. The data may be complex, but the visualization can be breathtaking.Now, Olympus has joined forces with Current Biology to offer a state-of-the-art digital camera for the best photomicrograph.
E. Todd Weber +5 more
openaire +3 more sources
Distinguishable DNA methylation defines a cardiac-specific epigenetic clock [PDF]
, 2023 BACKGROUND The present study investigates whether epigenetic differences emerge in the heart of patients undergoing cardiac surgery for an aortic valvular replacement (AVR) or coronary artery bypass graft (CABG).
Atlante, S +20 more
core +1 more source
Wild clocks: preface and glossary [PDF]
, 2017 No abstract ...
Gerkema, Menno P. +2 more
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How to Synchronize Biological Clocks [PDF]
Journal of Computational Biology, 2009 This paper is concerned with a novel algorithm to study networks of biological clocks. A new set of conditions is established that can be used to verify whether an existing network synchronizes or to give guidelines to construct a new synthetic network of biological oscillators that synchronize.
G. Russo, DI BERNARDO, MARIO
openaire +6 more sources
Circadian Rhythm and Chronobiology [PDF]
, 2018 All photosensitive organisms have a biological clock to cope with daily and seasonal circle of the earth. Biological clocks create circadian rhythms and regulate their processing according to cycle of the world.
Çakmur, Hülya
core +2 more sources
The Circadian Clock, the Immune System, and Viral Infections: The Intricate Relationship Between Biological Time and Host-Virus Interaction [PDF]
, 2020 Living beings spend their lives and carry out their daily activities interacting with environmental situations that present space-time variations and that involve contact with other life forms, which may behave as commensals or as invaders and/or ...
Carbone, Annalucia +3 more
core +1 more source