Results 11 to 20 of about 72,064 (292)

Cryptochrome 1 mediates light-dependent inclination magnetosensing in monarch butterflies

Nature Communications, 2021
Exactly how some animals use magnetic fields to navigate is a longstanding puzzle. A study using a new behavioural assay and transgenic butterflies finds the cryptochrome gene necessary for inclination-based magnetic sensing, and shows that both antennae
Guijun Wan, Ashley N. Hayden, Samantha E. Iiams, Christine Merlin   +3 more
doaj   +1 more source

Biological clocks [PDF]

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 ...
N, Ishida, M, Kaneko, R, Allada
openaire   +2 more sources

Assessing the Causal Association between Biological Aging Biomarkers and the Development of Cerebral Small Vessel Disease: A Mendelian Randomization Study

Biology, 2023
Biological aging biomarkers, such as leukocyte telomere length (LTL) and epigenetic clocks, have been associated with the risk of cerebral small vessel disease (CSVD) in several observational studies.
Biying Lin, Yuzhu Mu, Zhongxiang Ding
doaj   +1 more source

Evaluation of pediatric epigenetic clocks across multiple tissues

Clinical Epigenetics, 2023
Background Epigenetic clocks are promising tools for assessing biological age. We assessed the accuracy of pediatric epigenetic clocks in gestational and chronological age determination.
Fang Fang, Linran Zhou, Wei Perng, Carmen J. Marsit, Anna K. Knight, Andres Cardenas, Max T. Aung, Marie-France Hivert, Izzuddin M. Aris, Jaclyn M. Goodrich, Alicia K. Smith, Abigail Gaylord, Rebecca C. Fry, Emily Oken, George O’Connor, Douglas M. Ruden, Leonardo Trasande, Julie B. Herbstman, Carlos A. Camargo, Nicole R. Bush, Anne L. Dunlop, Dana M. Dabelea, Margaret R. Karagas, Carrie V. Breton, Carole Ober, Todd M. Everson, Grier P. Page, Christine Ladd-Acosta, on behalf of program collaborators for Environmental influences on Child Health Outcomes   +28 more
doaj   +1 more source

A 2-dimensional Geometry for Biological Time [PDF]

, 2011
This paper proposes an abstract mathematical frame for describing some features of biological time. The key point is that usual physical (linear) representation of time is insufficient, in our view, for the understanding key phenomena of life, such as ...
Bailly, Bailly, Bailly, Bailly, Botzung, Bourgine, Chaline, Cranford, Fabrizio, Feynman, Francis Bailly, Giuseppe Longo, Goldberger, Hellbrugge, Le Méhauté, Le Van Quyen, Lindstedt, Mael Montevil, Massin, Mortola, Nottale, Savage, Schmidt-Nielsen, Szpunar, Van Gelder, Varela, West, West, West, Winfree   +29 more
core   +4 more sources

Macrophage Meets the Circadian Clock: Implication of the Circadian Clock in the Role of Macrophages in Acute Lower Respiratory Tract Infection

Frontiers in Cellular and Infection Microbiology, 2022
The circadian rhythm is a biological system that creates daily variations of physiology and behavior with a 24-h cycle, which is precisely controlled by the molecular circadian clock.
Ken Shirato, Shogo Sato
doaj   +1 more source

Rhythms of Locomotion Expressed by Limulus polyphemus, the American Horseshoe Crab: II. Relationship to Circadian Rhythms of Visual Sensitivity [PDF]

, 2008
In the laboratory, horseshoe crabs express a circadian rhythm of visual sensitivity as well as daily and circatidal rhythms of locomotion. The major goal of this investigation was to determine whether the circadian clock underlying changes in visual ...
Bedford, Lisa, Chabot, Christopher C., Watson, Winsor H., III   +2 more
core   +3 more sources

An Individual-based Probabilistic Model for Fish Stock Simulation [PDF]

, 2010
We define an individual-based probabilistic model of a sole (Solea solea) behaviour. The individual model is given in terms of an Extended Probabilistic Discrete Timed Automaton (EPDTA), a new formalism that is introduced in the paper and that is shown ...
Buti, Federico, Corradini, Flavio, Merelli, Emanuela, Paschini, Elio, Penna, Pierluigi, Tesei, Luca   +5 more
core   +3 more sources

Multiomics modeling of the immunome, transcriptome, microbiome, proteome and metabolome adaptations during human pregnancy. [PDF]

, 2019
MotivationMultiple biological clocks govern a healthy pregnancy. These biological mechanisms produce immunologic, metabolomic, proteomic, genomic and microbiomic adaptations during the course of pregnancy.
Agard, Bruno, Aghaeepour, Nima, Ando, Kazuo, Angst, Martin S, Callahan, Benjamin, Contrepois, Kévin, Culos, Anthony, Darmstadt, Gary L, DiGiulio, Daniel B, Druzin, Maurice L, Ganio, Edward, Gaudilliere, Brice, Gaudilliere, Dyani, Ghaemi, Mohammad Sajjad, Gibbs, Ronald, Han, Xiaoyuan, Lee-McMullen, Brittany, Lehallier, Benoit, Lewis, David B, Maric, Ivana, Mcilwain, David, McNeil, Leslie, Ngo, Thuy TM, Nolan, Garry, Partovi Nia, Vahid, Quaintance, Cecele, Quake, Stephen R, Relman, David A, Robaczewska, Anna, Rosenberg-Hasson, Yael, Shaw, Gary M, Sirota, Marina, Snyder, Michael P, Stanley, Natalie, Stevenson, David K, Tanada, Athena, Tibshirani, Robert, Tingle, Martha, Tsai, Amy, Winn, Virginia D, Wise, Paul, Wong, Ronald J, Wyss-Coray, Tony   +42 more
core   +3 more sources

MicroRNA-433 Dampens Glucocorticoid Receptor Signaling, Impacting Circadian Rhythm and Osteoblastic Gene Expression [PDF]

, 2016
FUNDING This work was supported by the National Institute of Arthritis and Musculoskeletal and Skin Diseases of the National Institutes of Health [AR44877]; the National Institutes for Dental and Craniofacial Research [5T90DE21989]; a Grant-in-Aid award ...
Delany, Anne M, Dole, Neha S, Franceschetti, Tiziana, Hrdlicka, Henry C, Smith, Spenser S   +4 more
core   +1 more source