Results 51 to 60 of about 64,785 (232)
Robustness of circadian clocks to daylight fluctuations: hints from the picoeucaryote Ostreococcus tauri [PDF]
The development of systemic approaches in biology has put emphasis on identifying genetic modules whose behavior can be modeled accurately so as to gain insight into their structure and function.
A Goldbeter+58 more
core +5 more sources
Biological Clocks and Ventricular Tachyarrhythmias
Sudden cardiac death (SCD) due to sustained ventricular tachyarrhythmias (VTA) remains a major public health problem because of poor understanding of the mechanisms. Initiation of VTA in animal models and in patients usually requires intense metabolic or electrical stimuli not often observed ...
openaire +3 more sources
In lymphoid organs, antigen recognition and B cell receptor signaling rely on integrins and the cytoskeleton. Integrins act as mechanoreceptors, couple B cell receptor activation to cytoskeletal remodeling, and support immune synapse formation as well as antigen extraction.
Abhishek Pethe, Tanja Nicole Hartmann
wiley +1 more source
Understanding the retardation of the returned astronaut's clock and GPS clocks using the physical behaviour of moving light clocks [PDF]
The prediction of retardation of an astronaut’s clock during a round trip, compared to the clock of the stay-at-home, introduced by Einstein in his 1905 paper has been the most contentious issue for relativity.
McCarthy, Lance
core +1 more source
Social context prevents heat hormetic effects against mutagens during fish development
This study shows that sublethal heat stress protects fish embryos against ultraviolet radiation, a concept known as ‘hormesis’. However, chemical stress transmission between fish embryos negates this protective effect. By providing evidence for the mechanistic molecular basis of heat stress hormesis and interindividual stress communication, this study ...
Lauric Feugere+5 more
wiley +1 more source
miRNA‐29 regulates epidermal and mesenchymal functions in skin repair
miRNA‐29 inhibits cell‐to‐cell and cell‐to‐matrix adhesion by silencing mRNA targets. Adhesion is controlled by complex interactions between many types of molecules coded by mRNAs. This is crucial for keeping together the layers of the skin and for regenerating the skin after wounding.
Lalitha Thiagarajan+10 more
wiley +1 more source
Spot‐14 and Spot‐14R play distinct roles in regulating metabolism in brown and beige adipocytes. While both influence lipid and glucose pathways, Spot‐14 uniquely controls thermogenic gene expression. This dual regulation balances energy storage and heat production, highlighting potential therapeutic targets for obesity and metabolic disorders. Spot 14
Lidia Itzel Castro‐Rodríguez+3 more
wiley +1 more source
We present the cellular transcription‐coupled Flp‐nick system allowing the introduction of a Top1‐mimicking cleavage complex (Flpcc) at a Flp recognition target site within a controllable LacZ gene. LacZ transcription leads to the collision of RNA polymerase II (RNAPII) with Flpcc, and this causes RNAPII stalling, ubiquitination, and degradation.
Petra Herring+6 more
wiley +1 more source
Interaction extracellular vesicles (iEVs) are hybrid vesicles formed through host‐pathogen communication. They facilitate immune evasion, transfer pathogens' molecules, increase host cell uptake, and enhance virulence. This Perspective article illustrates the multifunctional roles of iEVs and highlights their emerging relevance in infection dynamics ...
Bruna Sabatke+2 more
wiley +1 more source
Biological clocks: The coming of age
Life evolved on earth slowly over a few billions of years. During this time, and before, the earth has been rotating around its own tilted axis and simultaneously revolving around the sun. Thus, it is no surprise that the periodic environmental consequences of the rotation (day and night), the tilt (changing day length) and of the revolution (seasons ...
openaire +4 more sources