Results 71 to 80 of about 2,835,706 (332)

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

open access: yesFEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo   +2 more
wiley   +1 more source

Quantitative determination of the nucleophilicity of allylsilanes [PDF]

open access: yes, 1989
Kinetic investigations on the reactivity of allylsilanes (1a–o) towards the p-methoxy substituted diphenylcarbenium ion (2) are ...
Hagen, Gisela, Mayr, Herbert
core   +1 more source

Hematopoietic (stem) cells—The elixir of life?

open access: yesFEBS Letters, EarlyView.
The aging of HSCs (hematopoietic stem cells) and the blood system leads to the decline of other organs. Rejuvenating aged HSCs improves the function of the blood system, slowing the aging of the heart, kidney, brain, and liver, and the occurrence of age‐related diseases.
Emilie L. Cerezo   +4 more
wiley   +1 more source

Psychotherapy Participants Show Increased Physiological Responsiveness to a Lab Stressor Relative to Matched Controls

open access: yesFrontiers in Psychology, 2014
Accumulating evidence indicates that psychotherapy participants show increased physiological responsiveness to stress. The purpose of the present study was to examine differences between individuals participating in outpatient psychotherapy and matched ...
Patrick R Steffen   +4 more
doaj   +1 more source

Cortisol reactivity to psychosocial stress is greater in sexual risk takers [PDF]

open access: yes, 2013
Several studies have reported an association between deviant behaviour and cortisol reactivity to stress. However relatively few studies have investigated the relationship between psychobiological stress reactivity and sexual risk taking behaviours.
Harrison, Claire   +3 more
core   +1 more source

Detecting reactivity [PDF]

open access: yesEcology, 2009
By definition, ecological systems at a stable equilibrium eventually return to the equilibrium point following a small perturbation. In the short term, however, perturbations can grow. Equilibria that exhibit transient growth following perturbation are said to be reactive.
Neubert, Michael G.   +2 more
openaire   +3 more sources

Hyperarousal and sleep reactivity in insomnia: current insights

open access: yesNature and Science of Sleep, 2018
Hyperarousal is a key component in all modern etiological models of insomnia disorder. Overall patterns in the literature suggest that over-active neurobiological and psychological systems contribute to difficulty sleeping.
D. Kalmbach   +6 more
semanticscholar   +1 more source

Interplay between circadian and other transcription factors—Implications for cycling transcriptome reprogramming

open access: yesFEBS Letters, EarlyView.
This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley   +1 more source

The surface reactivity of iron oxide nanoparticles as a potential hazard for aquatic environments: A study on Daphnia magna adults and embryos [PDF]

open access: yes, 2018
open5noNano-ecotoxicology is extensively debated and nanomaterial surface reactivity is an emerging topic. Iron oxide nanoparticles are widely applied, with organic or inorganic coatings for stabilizing their suspensions.

core   +1 more source

Quantitative reactivity profiling predicts functional cysteines in proteomes

open access: yesNature, 2010
Cysteine is the most intrinsically nucleophilic amino acid in proteins, where its reactivity is tuned to perform diverse biochemical functions. The absence of a consensus sequence that defines functional cysteines in proteins has hindered their discovery
E. Weerapana   +9 more
semanticscholar   +1 more source

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