Results 31 to 40 of about 168,979 (308)
Angewandte Chemie, EarlyView.Protein‐binding aptamers remain poorly understood compared to their small‐molecule counterparts. Using green fluorescent protein (GFP) variants as a tractable model system, we show how subtle changes in protein surface composition and divalent metal ions reshape aptamer selection, specificity, and binding.
Stefen Stangherlin +8 more
wiley +2 more sources
Induction of chromosome shattering by ultraviolet light and caffeine: The influence of different distributions of photolesions [PDF]
, 1986 Cells of synchonized and of asynchronously growing cultures of a V79 Chinese hamster line were microirradiated with a low poweer laser-UV-microbeam of wavelength 257 nm.
Cremer, Thomas, Cremer, Christoph
core +1 more source
Heliyon, 2022 Caffeine is a psychoactive substance that not only improves wakefulness, but also slows the cognitive decline caused by aging. However, at present, there are no reports about the effects of caffeine withdrawal, including headaches and changes in brain ...
Mitsuki Rikitake +11 more
doaj +1 more source
Genome-wide association study of caffeine metabolites provides new insights to caffeine metabolism and dietary caffeine-consumption behavior. [PDF]
, 2016 Caffeine is the most widely consumed psychoactive substance in the world and presents with wide interindividual variation in metabolism. This variation may modify potential adverse or beneficial effects of caffeine on health.
Völzke, Henry +33 more
core +3 more sources
Caffeine cue-reactivity: The impact of caffeine-related stimuli and expectancies on caffeine craving. [PDF]
, 2019 Caffeine is consumed by approximately 90% of adults, yet its potential addictive properties have been understudied. Specifically, this study examined the impact caffeine cue reactivity and expectancy on caffeine craving and withdrawal.
Shephard, Aaron
core +1 more source
Journal of the International Society of Sports NutritionCaffeine is a popular ergogenic aid that has a plethora of evidence highlighting its positive effects. A Google Scholar search using the keywords “caffeine” and “exercise” yields over 200,000 results, emphasizing the extensive research on this topic ...
Jose Antonio +19 more
doaj +1 more source
Rapid measurement of serum caffeine concentrations in acuteclinical settings
Toxicology Communications, 2021 The number of acute caffeine poisoning cases have increased in Japan. We can use serum caffeine concentrations to evaluate the severity of caffeine poisoning and determine whether or not we should perform hemodialysis. In this study, we sought to develop
Tomoki Hanazawa +3 more
doaj +1 more source
Journal of Food Protection, 1990 Two components of cocoa powder, caffeine (1,3,7-trimethylxanthine) and theobromine (3,7-dimethylxanthine), were evaluated for their effect on growth of L. monocytogenes strain V7. Caffeine (0.5%) and theobromine (2.5%) were added singly or in combination to skim milk or a modified tryptose phosphate broth (MTPB), which were sterilized, inoculated to ...
Laura J, Pearson, Elmer H, Marth
openaire +2 more sources
Advanced Materials Technologies, EarlyView.We introduce a novel method combining microfluidics, optogenetics, and human induced pluripotent stem cell (iPSC) technology to encapsulate single iPSC‐derived cardiomyocytes (iPSC‐CMs) in an optimal environment for functional characterization. This method enables direct genotype‐phenotype correlation for genetic studies and high‐throughput screening ...
Xiao‐Ting Wang +7 more
wiley +1 more source
Light‐Driven Quadrupedal Walking Biohybrid Robot With Antagonistic Muscle‐Rings and Inclined Joints
Advanced Robotics Research, EarlyView.This work presents a light‐driven quadrupedal walking biohybrid robot powered by antagonistic muscle‐rings that achieve alternating walking gait. Optical training improved reproducibility of cultured muscle tissues, while caffeine treatment enhanced contractile force.
Shotaro Saito +5 more
wiley +1 more source