Endogenous circadian rhythms are biological processes generated by an internal body clock. They are self-sustaining, and they govern biochemical and physiological processes. However, circadian rhythms are influenced by many external stimuli to reprogram the phase in response to environmental change. Through their adaptability to environmental changes, they synchronize physiological responses to environmental challenges that occur within a sidereal day. The precision of this circadian system is assured by many post-translational modifications (PTMs) that occur on the protein components of the circadian clock mechanism. The most ancient example of circadian rhythmicity driven by phosphorylation of clock proteins was observed in cyanobacteria. The influence of phosphorylation on the circadian system is observed through different kingdoms, from plants to humans. Here, we discuss how phosphorylation modulates the mammalian circadian clock, and we give a detailed overview of the most critical discoveries in the field.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7726318 | PMC |
| http://dx.doi.org/10.3389/fphys.2020.612510 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
[Berberine regulates glucose and lipid metabolism via clock-controlled genes to ameliorate insulin resistance of hepatocytes].
Zhongguo Zhong Yao Za Zhi
December 2024
Jiangxi Province Key Laboratory of Traditional Chinese Medicine Etiopathogenisis & Research Center for Differentiation and Development of Traditional Chinese Medicine Basic Theory, Jiangxi University of Chinese Medicine Nanchang 330004,China.
This study aims to investigate the mechanism of berberine in regulating the metabolism network via clock-controlled genes represented by brain and muscle arnt-like 1(BMAL1) to ameliorate insulin resistance(IR) of hepatocytes in vitro. The HepG2 cell model of dexamethasone-induced IR(IR-HepG2) was established and treated with 5, 10, and 20 μmol·L~(-1) berberine, respectively, for 24 h. The glucose oxidase method and cell counting kit-8(CCK-8) assay were employed to measure extracellular glucose concentration and cell viability, respectively.
View Article and Find Full Text PDFThe role of clock control of DRP1 activity involved in postoperative cognitive dysfunction.
Exp Neurol
January 2025
School of Public Health, Nanjing Medical University, Nanjing 211166, China. Electronic address:
Postoperative cognitive dysfunction (POCD) is a prevalent clinical issue following anesthesia and surgery. The onset of POCD, which is closely linked to circadian rhythm disturbance in previous studies, yet the underlying mechanism remains elusive. There is increasing evidence showed that mitochondrial architecture is coordinated by the circadian clock which DRP1 playing a crucial role.
View Article and Find Full Text PDFWhite Tea Aqueous Extract: A Potential Anti-Aging Agent Against High-Fat Diet-Induced Senescence in .
Foods
December 2024
College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
White tea has been scientifically proven to exhibit positive biological effects in combating chronic diseases, including cancer, metabolic syndrome, etc. Nevertheless, the anti-aging activity and mechanism of white tea on organisms exposed to a high-fat diet remain unexplored. Herein, we prepared a white tea aqueous extract (WTAE) from white peony in Fuding and assessed its in vivo antioxidant and anti-aging effects by employing a senescence model induced by lard, delving into the underlying molecular mechanisms through which the WTAE contributes to lifespan improvement.
View Article and Find Full Text PDFChronotherapy with Cinacalcet has a striking effect on inhibition of parathyroid gland proliferation in rats with secondary hyperparathyroidism.
PLoS One
January 2025
Nephrological Department, Herlev Hospital, University of Copenhagen, Copenhagen, Denmark.
Secondary hyperparathyroidism (sHPT) is a significant clinical complication of CKD leading to bone abnormalities and cardiovascular disease. Current treatment based on activating the parathyroid calcium-sensing receptor (CaSR) using calcimimetics such as Cinacalcet, aims to decrease plasma PTH levels and inhibit the progression of parathyroid hyperplasia. In the present study, we found significant diurnal rhythmicity of Casr, encoding the Cinacalcet drug target in hyperplastic parathyroid glands (p = 0.
View Article and Find Full Text PDFProgramming scheduled self-assembly of circadian materials.
Nat Commun
January 2025
Department of Physics and Biophysics, University of San Diego, San Diego, CA, USA.
Active biological molecules present a powerful, yet largely untapped, opportunity to impart autonomous regulation of materials. Because these systems can function robustly to regulate when and where chemical reactions occur, they have the ability to bring complex, life-like behavior to synthetic materials. Here, we achieve this design feat by using functionalized circadian clock proteins, KaiB and KaiC, to engineer time-dependent crosslinking of colloids.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!