Results 11 to 20 of about 143,456 (314)
Caffeine causes most of its biological effects via antagonizing all types of adenosine receptors (ARs): A1, A2A, A3, and A2B and, as does adenosine, exerts effects on neurons and glial cells of all brain areas. In consequence, caffeine, when acting as an AR antagonist, is doing the opposite of activation of adenosine receptors due to removal of ...
Ribeiro, Joaquim A., Sebastião, Ana M
openaire +3 more sources
Caffeine (a stimulant) and ethanol (a depressant) may have opposite effects in our body, but under in vitro conditions they can “gel” together. Caffeine, being one of the widely used stimulants, continued to surprise the scientific community with its unprecedented biological, medicinal and physicochemical properties.
Kolehmainen, Erkki, Nonappa, Nonappa
openaire +7 more sources
Caffeine citrate is the drug of choice for the pharmacological treatment of apnea of prematurity. Factors such as maturity and genetic variation contribute to the interindividual variability in the clinical response to caffeine therapy in preterm infants,
Jia-Yi Long +9 more
doaj +1 more source
Timing of Caffeine Therapy and Neonatal Outcomes in Preterm Infants: A Retrospective Study
Background. Caffeine is widely used to treat apnea of prematurity. Here, we evaluated the efficacy of early caffeine (1-2 DOL) in decreasing the incidence of adverse neonatal outcomes. Methods.
Ivan Hand +5 more
doaj +1 more source
Caffeine activates HOG-signalling and inhibits pseudohyphal growth in Saccharomyces cerevisiae
Objective Caffeine has a wide range of effects in humans and other organisms. Caffeine activates p38 MAPK, the human homolog to the Hog1 protein that orchestrates the high-osmolarity glycerol (HOG) response to osmotic stress in the yeast Saccharomyces ...
Tarek Elhasi, Anders Blomberg
doaj +1 more source
Background Adenosine is used in stress perfusion cardiac imaging to reveal myocardial ischemia by its vasodilator effects. Caffeine is a competitive antagonist of adenosine.
Andreas Seitz +8 more
doaj +1 more source
Effect Solvent and Extraction Method on the Characteristics of Green Bean Robusta Coffee [PDF]
One of the chemical elements found in coffee is caffeine, which is the second-largest secondary metabolite after chlorogenic acid. Robusta coffee has a higher caffeine content than Arabica.
Winarsih Sri +3 more
doaj +1 more source
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
Rapid measurement of serum caffeine concentrations in acuteclinical settings
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
Caffeine 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

