Results 61 to 70 of about 16,131 (160)
Circadian Clocks and Metabolism [PDF]
, 2013 Circadian clocks maintain periodicity in internal cycles of behavior, physiology, and metabolism, enabling organisms to anticipate the 24-h rotation of the Earth. In mammals, circadian integration of metabolic systems optimizes energy harvesting and utilization across the light/dark cycle.
Marcheva, Biliana +5 more
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Circadian Clocks, Stress, and Immunity [PDF]
Frontiers in Endocrinology, 2016 In mammals, molecular circadian clocks are present in most cells of the body, and this circadian network plays an important role in synchronizing physiological processes and behaviors to the appropriate time of day. The hypothalamic-pituitary-adrenal endocrine axis regulates the response to acute and chronic stress, acting through its final effectors -
Dumbell, R, Matveeva, O, Oster, H
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Drosophila Clock Can Generate Ectopic Circadian Clocks [PDF]
Cell, 2003 Circadian rhythms of behavior, physiology, and gene expression are present in diverse tissues and organisms. The function of the transcriptional activator, Clock, is necessary in both Drosophila and mammals for the expression of many core clock components.
Zhao, Jie +6 more
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Circadian Clocks Make Metabolism Run
Journal of Molecular Biology, 2020 Most organisms adapt to the 24-h cycle of the Earth's rotation by anticipating the time of the day through light-dark cycles. The internal time-keeping system of the circadian clocks has been developed to ensure this anticipation. The circadian system governs the rhythmicity of nearly all physiological and behavioral processes in mammals.
Sinturel, Flore +2 more
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SnapShot: Circadian Clock Proteins
Cell, 2008 The earth’s rotation about its axis generates predictable changes in light and temperature, which define the 24 hr day-night cycle. Organisms from bacteria to humans have evolved an internal timekeeper to anticipate these environmental changes. This timekeeper—the circadian clock—allows organisms to parse biological processes to the appropriate time of
Hamilton, Elizabeth E., Kay, Steve A.
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Bio-Protocol, 2017 Circadian rhythms are biological processes displaying an endogenous oscillation with a period of ~24 h. They allow organisms to anticipate and get prepared for the environmental changes caused mainly by the rotation of Earth. Circadian rhythms are driven
Qiang Chen +3 more
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Synchrony of plant cellular circadian clocks with heterogeneous properties under light/dark cycles
Scientific Reports, 2017 Individual cells in a plant can work independently as circadian clocks, and their properties are the basis of various circadian phenomena. The behaviour of individual cellular clocks in Lemna gibba was orderly under 24-h light/dark cycles despite their ...
Masaaki Okada +3 more
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Does the circadian system regulate lactation?
Animal, 2012 Environmental variables such as photoperiod, heat, stress, nutrition and other external factors have profound effects on quality and quantity of a dairy cow's milk.
K. Plaut, T. Casey
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eLife, 2014 In order to assess the contribution of a central clock in the hypothalamic suprachiasmatic nucleus (SCN) to circadian behavior and the organization of peripheral clocks, we generated forebrain/SCN-specific Bmal1 knockout mice by using floxed Bmal1 and ...
Mariko Izumo +8 more
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iScienceSummary: Circadian clocks, generating daily rhythms in biological processes, maintain homeostasis in physiology, so clock alterations are considered detrimental.
Xuebing Zhang +2 more
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