Results 31 to 40 of about 118,339 (331)

A Long Noncoding RNA Perturbs the Circadian Rhythm of Hepatoma Cells to Facilitate Hepatocarcinogenesis

open access: yesNeoplasia: An International Journal for Oncology Research, 2015
Clock circadian regulator (CLOCK)/brain and muscle arnt-like protein-1 (BMAL1) complex governs the regulation of circadian rhythm through triggering periodic alterations of gene expression.
Ming Cui   +5 more
doaj   +1 more source

Thyroxine differentially modulates the peripheral clock: lessons from the human hair follicle [PDF]

open access: yes, 2015
The human hair follicle (HF) exhibits peripheral clock activity, with knock-down of clock genes (BMAL1 and PER1) prolonging active hair growth (anagen) and increasing pigmentation.
Farjo, Bessam   +4 more
core   +4 more sources

Feeding and circadian clocks [PDF]

open access: yesReproduction Nutrition Development, 2006
The mammalian genome encodes at least a dozen of genes directly involved in the regulation of the feedback loops constituting the circadian clock. The circadian system is built up on a multitude of oscillators organized according to a hierarchical model in which neurons of the suprachiasmatic nuclei of the hypothalamus may drive the central circadian ...
Lissia, Pardini, Bertrand, Kaeffer
openaire   +2 more sources

Pan-Cancer Analysis Reveals Disrupted Circadian Clock Associates With T Cell Exhaustion

open access: yesFrontiers in Immunology, 2019
Although dysfunctional circadian clock has emerged as a hallmark of cancer, fundamental gaps remain in our understanding of the underlying mechanisms involved.
Yingcheng Wu   +6 more
doaj   +1 more source

Non-circadian expression masking clock-driven weak transcription rhythms in U2OS cells. [PDF]

open access: yesPLoS ONE, 2014
U2OS cells harbor a circadian clock but express only a few rhythmic genes in constant conditions. We identified 3040 binding sites of the circadian regulators BMAL1, CLOCK and CRY1 in the U2OS genome. Most binding sites even in promoters do not correlate
Julia Hoffmann   +5 more
doaj   +1 more source

The neurobiology of circadian rhythms [PDF]

open access: yes, 2009
Purpose of review There is growing awareness of the importance of circadian rhythmicity in various research fields. Exciting developments are ongoing in the field of circadian neurobiology linked to sleep, food intake, and memory.
Boersma, Gretha J.,   +2 more
core   +3 more sources

Neuroimmunology of the circadian clock

open access: yesBrain Research, 2008
Circadian timekeeping is a ubiquitous feature of all eukaryotes which allows for the imposition of a biologically appropriate temporal architecture on an animal's physiology, behavior and metabolism. There is growing evidence that in mammals the processes of circadian timing are under the influence of the immune system.
Coogan, Andrew, Wyse, Cathy A.
openaire   +3 more sources

Brain-specific rescue of Clock reveals system-driven transcriptional rhythms in peripheral tissue.

open access: yesPLoS Genetics, 2012
The circadian regulatory network is organized in a hierarchical fashion, with a central oscillator in the suprachiasmatic nuclei (SCN) orchestrating circadian oscillations in peripheral tissues.
Michael E Hughes   +7 more
doaj   +1 more source

Heritable gene expression variability and stochasticity govern clonal heterogeneity in circadian period.

open access: yesPLoS Biology, 2020
A ubiquitous feature of the circadian clock across life forms is its organization as a network of cellular oscillators, with individual cellular oscillators within the network often exhibiting considerable heterogeneity in their intrinsic periods.
K L Nikhil, Sandra Korge, Achim Kramer
doaj   +1 more source

Circadian rhythms and hormonal homeostasis: Pathophysiological implications [PDF]

open access: yes, 2017
Over recent years, a deeper comprehension of the molecular mechanisms that control biological clocks and circadian rhythms has been achieved. In fact, many studies have contributed to unravelling the importance of the molecular clock for the regulation ...
Bruscalupi, Giovannella, Gnocchi, Davide
core   +2 more sources

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