Results 1 to 10 of about 162,717 (253)

Circadian Rhythms of Crawling and Swimming in the Nudibranch Mollusc Melibe leonina [PDF]

, 2014
Daily rhythms of activity driven by circadian clocks are expressed by many organisms, including molluscs. We initiated this study, with the nudibranch Melibe leonina, with four goals in mind: (1) determine which behaviors are expressed with a daily ...
James M. Newcomb, Lauren E. Kirouac, Amanda A. Naimie, Kimberly A. Bixby, Colin Lee, Stephanie Malanga, Maureen Raubach, Winsor H. Watson   +7 more
openalex   +4 more sources

Gut microbiota circadian rhythms: a key regulator of immunometabolic homeostasis. [PDF]

Acta Biochim Biophys Sin (Shanghai)
Zhao Z, Wu S, Wang T, Zhao Y.
europepmc   +3 more sources

Circadian rhythms [PDF]

Brain Research Reviews, 1993
Circadian rhythms are a ubiquitous adaptation of eukaryotic organisms to the most reliable and predictable of environmental changes, the daily cycles of light and temperature. Prominent daily rhythms in behavior, physiology, hormone levels and biochemistry (including gene expression) are not merely responses to these environmental cycles, however, but ...
Aronson, B. D., Bell-Pederson, D., Block, G. D., Bos, N. P. A., Dunlap, J. C., Eskin, A., Garceau, N. Y., Geusz, M. E., Johnson, K. A., Khalsa, S. B. S., Koster-Van Hoffen, G. C., Koumenis, C., Lee, Theresa M., LeSauter, J., Lindgren, K. M., Liu, Qiuyun, Ruby, N. F., Silver, Rae, Turek, F. W., Zatz, M., Zucker, Irving   +20 more
openaire   +5 more sources

Removal of melatonin receptor type 1 signalling induces dyslipidaemia and hormonal changes in mice subjected to environmental circadian disruption

Endocrinology, Diabetes & Metabolism, 2021
Background Melatonin is a hormone secreted by the pineal gland in a circadian rhythmic manner with peak synthesis at night. Melatonin signalling was suggested to play a critical role in metabolism during the circadian disruption.
Cynthia Tchio, Kenkichi Baba, Giuseppe Piccione, Gianluca Tosini   +3 more
doaj   +1 more source

The retinal ipRGC-preoptic circuit mediates the acute effect of light on sleep

Nature Communications, 2021
The preoptic area (POA) is critical for sleep regulation but its role in acute, non-circadian, light effects on sleep are unclear. The authors show that intrinsically photosensitive retinal ganglion cells provide substantial input into the POA and ...
Ze Zhang, Corinne Beier, Tenley Weil, Samer Hattar   +3 more
doaj   +1 more source

Satellite glia modulate sympathetic neuron survival, activity, and autonomic function

eLife, 2022
Satellite glia are the major glial cells in sympathetic ganglia, enveloping neuronal cell bodies. Despite this intimate association, the extent to which sympathetic functions are influenced by satellite glia in vivo remains unclear.
Aurelia A Mapps, Erica Boehm, Corinne Beier, William T Keenan, Jennifer Langel, Michael Liu, Michael B Thomsen, Samer Hattar, Haiqing Zhao, Emmanouil Tampakakis, Rejji Kuruvilla   +10 more
doaj   +1 more source

Association between MTNR1B polymorphisms and obesity in African American: findings from the Jackson Heart Study

BMC Medical Genomics, 2021
Background Melatonin is a hormone that is secreted at night by the pineal gland. It exerts its function by binding to the MT1 and MT2 receptors, which are encoded by the MTNR1A and MTNR1B genes, respectively.
Cynthia Tchio, Solomon K. Musani, Alexander Quarshie, Gianluca Tosini   +3 more
doaj   +1 more source

Temperature synchronisation of circadian rhythms in primary human airway epithelial cells from children

BMJ Open Respiratory Research, 2022
Introduction Cellular circadian rhythms regulate immune pathways and inflammatory responses that mediate human disease such as asthma. Circadian rhythms in the lung may also contribute to exacerbations of chronic diseases such as asthma by regulating ...
Weston T Powell, Lucille M Rich, Elizabeth R Vanderwall, Maria P White, Jason S Debley   +4 more
doaj   +1 more source

Distinct Circadian Assessments From Wearable Data Reveal Social Distancing Promoted Internal Desynchrony Between Circadian Markers

Frontiers in Digital Health, 2021
Mobile measures of human circadian rhythms (CR) are needed in the age of chronotherapy. Two wearable measures of CR have recently been validated: one that uses heart rate to extract circadian rhythms that originate in the sinoatrial node of the heart ...
Yitong Huang, Caleb Mayer, Olivia J. Walch, Clark Bowman, Srijan Sen, Srijan Sen, Cathy Goldstein, Jonathan Tyler, Jonathan Tyler, Daniel B. Forger, Daniel B. Forger, Daniel B. Forger   +11 more
doaj   +1 more source

Keeping an eye on circadian time in clinical research and medicine

Clinical and Translational Medicine, 2022
Background Daily rhythms are observed in humans and almost all other organisms. Most of these observed rhythms reflect both underlying endogenous circadian rhythms and evoked responses from behaviours such as sleep/wake, eating/fasting, rest/activity ...
Elizabeth B. Klerman, Allison Brager, Mary A. Carskadon, Christopher M. Depner, Russell Foster, Namni Goel, Mary Harrington, Paul M. Holloway, Melissa P. Knauert, Monique K. LeBourgeois, Jonathan Lipton, Martha Merrow, Sara Montagnese, Mingming Ning, David Ray, Frank A. J. L. Scheer, Steven A. Shea, Debra J. Skene, Claudia Spies, Bart Staels, Marie‐Pierre St‐Onge, Steffen Tiedt, Phyllis C. Zee, Helen J. Burgess   +23 more
doaj   +1 more source